/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 -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/goblint-regression/28-race_reach_36-indirect_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:06:27,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:06:27,638 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 [2023-08-25 04:06:27,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:06:27,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:06:27,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:06:27,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:06:27,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:06:27,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:06:27,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:06:27,680 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:06:27,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:06:27,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:06:27,682 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:06:27,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:06:27,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:06:27,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:06:27,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:06:27,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:06:27,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:06:27,683 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:06:27,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:06:27,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:06:27,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:06:27,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:06:27,686 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:06:27,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:06:27,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:06:27,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:06:27,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:06:27,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:06:27,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:06:27,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:06:27,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:06:27,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:06:27,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:06:28,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:06:28,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:06:28,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:06:28,058 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:06:28,059 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:06:28,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i [2023-08-25 04:06:29,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:06:29,714 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:06:29,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i [2023-08-25 04:06:29,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7261db9/8b48b463146a4d4eb37f97894f215448/FLAG8038cbc4d [2023-08-25 04:06:29,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7261db9/8b48b463146a4d4eb37f97894f215448 [2023-08-25 04:06:29,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:06:29,744 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:06:29,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:06:29,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:06:29,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:06:29,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:06:29" (1/1) ... [2023-08-25 04:06:29,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e240749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:29, skipping insertion in model container [2023-08-25 04:06:29,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:06:29" (1/1) ... [2023-08-25 04:06:29,784 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:06:30,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:06:30,130 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:06:30,154 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:06:30,156 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:06:30,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:06:30,219 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:06:30,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30 WrapperNode [2023-08-25 04:06:30,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:06:30,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:06:30,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:06:30,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:06:30,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,283 INFO L138 Inliner]: procedures = 170, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-08-25 04:06:30,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:06:30,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:06:30,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:06:30,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:06:30,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:06:30,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:06:30,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:06:30,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:06:30,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (1/1) ... [2023-08-25 04:06:30,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:06:30,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:06:30,365 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) [2023-08-25 04:06:30,366 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 [2023-08-25 04:06:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:06:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:06:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:06:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:06:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:06:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 04:06:30,393 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 04:06:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:06:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:06:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:06:30,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:06:30,395 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 04:06:30,535 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:06:30,536 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:06:30,810 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:06:30,818 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:06:30,818 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-08-25 04:06:30,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:06:30 BoogieIcfgContainer [2023-08-25 04:06:30,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:06:30,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:06:30,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:06:30,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:06:30,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:06:29" (1/3) ... [2023-08-25 04:06:30,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de895a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:06:30, skipping insertion in model container [2023-08-25 04:06:30,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:06:30" (2/3) ... [2023-08-25 04:06:30,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de895a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:06:30, skipping insertion in model container [2023-08-25 04:06:30,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:06:30" (3/3) ... [2023-08-25 04:06:30,833 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2023-08-25 04:06:30,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:06:30,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-25 04:06:30,850 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:06:30,985 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 04:06:31,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 179 transitions, 366 flow [2023-08-25 04:06:31,138 INFO L124 PetriNetUnfolderBase]: 19/235 cut-off events. [2023-08-25 04:06:31,138 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:06:31,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 235 events. 19/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 720 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 127. Up to 4 conditions per place. [2023-08-25 04:06:31,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 179 transitions, 366 flow [2023-08-25 04:06:31,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 179 transitions, 366 flow [2023-08-25 04:06:31,159 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:06:31,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 179 transitions, 366 flow [2023-08-25 04:06:31,176 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 179 transitions, 366 flow [2023-08-25 04:06:31,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 179 transitions, 366 flow [2023-08-25 04:06:31,234 INFO L124 PetriNetUnfolderBase]: 19/235 cut-off events. [2023-08-25 04:06:31,235 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:06:31,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 235 events. 19/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 720 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 127. Up to 4 conditions per place. [2023-08-25 04:06:31,243 INFO L119 LiptonReduction]: Number of co-enabled transitions 8184 [2023-08-25 04:06:35,004 INFO L134 LiptonReduction]: Checked pairs total: 36535 [2023-08-25 04:06:35,004 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-25 04:06:35,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:06:35,022 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;@2cacb6a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:06:35,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-25 04:06:35,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:06:35,024 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:06:35,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:06:35,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:35,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:06:35,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-25 04:06:35,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash 649, now seen corresponding path program 1 times [2023-08-25 04:06:35,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:35,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849326761] [2023-08-25 04:06:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:35,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:06:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:06:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:06:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849326761] [2023-08-25 04:06:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849326761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:06:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:06:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:06:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304073144] [2023-08-25 04:06:35,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:06:35,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:06:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:06:35,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:06:35,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:06:35,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 319 [2023-08-25 04:06:35,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 77 transitions, 162 flow. Second operand has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 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) [2023-08-25 04:06:35,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:06:35,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 319 [2023-08-25 04:06:35,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:06:35,282 INFO L124 PetriNetUnfolderBase]: 155/623 cut-off events. [2023-08-25 04:06:35,283 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:06:35,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 623 events. 155/623 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3363 event pairs, 154 based on Foata normal form. 27/582 useless extension candidates. Maximal degree in co-relation 928. Up to 348 conditions per place. [2023-08-25 04:06:35,287 INFO L140 encePairwiseOnDemand]: 304/319 looper letters, 29 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2023-08-25 04:06:35,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 190 flow [2023-08-25 04:06:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:06:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:06:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 372 transitions. [2023-08-25 04:06:35,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5830721003134797 [2023-08-25 04:06:35,301 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 372 transitions. [2023-08-25 04:06:35,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 372 transitions. [2023-08-25 04:06:35,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:06:35,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 372 transitions. [2023-08-25 04:06:35,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 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) [2023-08-25 04:06:35,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 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) [2023-08-25 04:06:35,312 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 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) [2023-08-25 04:06:35,313 INFO L175 Difference]: Start difference. First operand has 70 places, 77 transitions, 162 flow. Second operand 2 states and 372 transitions. [2023-08-25 04:06:35,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 190 flow [2023-08-25 04:06:35,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:06:35,318 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 132 flow [2023-08-25 04:06:35,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2023-08-25 04:06:35,323 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2023-08-25 04:06:35,323 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 132 flow [2023-08-25 04:06:35,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 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) [2023-08-25 04:06:35,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:35,324 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 04:06:35,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:06:35,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-25 04:06:35,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:35,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2053524071, now seen corresponding path program 1 times [2023-08-25 04:06:35,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:35,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981982245] [2023-08-25 04:06:35,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:35,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:06:35,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:06:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:06:35,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:06:35,398 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:06:35,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2023-08-25 04:06:35,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2023-08-25 04:06:35,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2023-08-25 04:06:35,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2023-08-25 04:06:35,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2023-08-25 04:06:35,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2023-08-25 04:06:35,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2023-08-25 04:06:35,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (12 of 20 remaining) [2023-08-25 04:06:35,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2023-08-25 04:06:35,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2023-08-25 04:06:35,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2023-08-25 04:06:35,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2023-08-25 04:06:35,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2023-08-25 04:06:35,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2023-08-25 04:06:35,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2023-08-25 04:06:35,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2023-08-25 04:06:35,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2023-08-25 04:06:35,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2023-08-25 04:06:35,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2023-08-25 04:06:35,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2023-08-25 04:06:35,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:06:35,405 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-25 04:06:35,407 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:06:35,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 04:06:35,439 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:06:35,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 247 transitions, 512 flow [2023-08-25 04:06:35,488 INFO L124 PetriNetUnfolderBase]: 34/390 cut-off events. [2023-08-25 04:06:35,488 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:06:35,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 390 events. 34/390 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1527 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 237. Up to 8 conditions per place. [2023-08-25 04:06:35,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 247 transitions, 512 flow [2023-08-25 04:06:35,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 247 transitions, 512 flow [2023-08-25 04:06:35,495 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:06:35,496 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 247 transitions, 512 flow [2023-08-25 04:06:35,496 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 247 transitions, 512 flow [2023-08-25 04:06:35,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 247 transitions, 512 flow [2023-08-25 04:06:35,542 INFO L124 PetriNetUnfolderBase]: 34/390 cut-off events. [2023-08-25 04:06:35,542 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:06:35,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 390 events. 34/390 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1527 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 237. Up to 8 conditions per place. [2023-08-25 04:06:35,562 INFO L119 LiptonReduction]: Number of co-enabled transitions 26532 [2023-08-25 04:06:38,899 INFO L134 LiptonReduction]: Checked pairs total: 162769 [2023-08-25 04:06:38,900 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-08-25 04:06:38,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:06:38,903 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;@2cacb6a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:06:38,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-25 04:06:38,904 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:06:38,904 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:06:38,904 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:06:38,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:38,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:06:38,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 04:06:38,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1115, now seen corresponding path program 1 times [2023-08-25 04:06:38,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:38,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059661609] [2023-08-25 04:06:38,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:38,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:06:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:06:38,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:06:38,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059661609] [2023-08-25 04:06:38,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059661609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:06:38,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:06:38,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:06:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964837877] [2023-08-25 04:06:38,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:06:38,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:06:38,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:06:38,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:06:38,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:06:38,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 398 [2023-08-25 04:06:38,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 132 transitions, 282 flow. Second operand has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 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) [2023-08-25 04:06:38,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:06:38,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 398 [2023-08-25 04:06:38,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:06:39,858 INFO L124 PetriNetUnfolderBase]: 3147/8742 cut-off events. [2023-08-25 04:06:39,859 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-08-25 04:06:39,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13865 conditions, 8742 events. 3147/8742 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 81557 event pairs, 3132 based on Foata normal form. 908/8576 useless extension candidates. Maximal degree in co-relation 9748. Up to 5043 conditions per place. [2023-08-25 04:06:39,920 INFO L140 encePairwiseOnDemand]: 379/398 looper letters, 39 selfloop transitions, 0 changer transitions 0/113 dead transitions. [2023-08-25 04:06:39,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 113 transitions, 322 flow [2023-08-25 04:06:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:06:39,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:06:39,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 506 transitions. [2023-08-25 04:06:39,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.635678391959799 [2023-08-25 04:06:39,924 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 506 transitions. [2023-08-25 04:06:39,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 506 transitions. [2023-08-25 04:06:39,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:06:39,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 506 transitions. [2023-08-25 04:06:39,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.0) internal successors, (506), 2 states have internal predecessors, (506), 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) [2023-08-25 04:06:39,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 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) [2023-08-25 04:06:39,929 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 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) [2023-08-25 04:06:39,929 INFO L175 Difference]: Start difference. First operand has 120 places, 132 transitions, 282 flow. Second operand 2 states and 506 transitions. [2023-08-25 04:06:39,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 113 transitions, 322 flow [2023-08-25 04:06:39,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 113 transitions, 322 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:06:39,933 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 244 flow [2023-08-25 04:06:39,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=398, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=244, PETRI_PLACES=117, PETRI_TRANSITIONS=113} [2023-08-25 04:06:39,934 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -3 predicate places. [2023-08-25 04:06:39,934 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 244 flow [2023-08-25 04:06:39,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 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) [2023-08-25 04:06:39,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:39,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:06:39,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:06:39,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 04:06:39,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:39,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1678797226, now seen corresponding path program 1 times [2023-08-25 04:06:39,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:39,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356286768] [2023-08-25 04:06:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:39,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:06:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:06:40,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:06:40,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356286768] [2023-08-25 04:06:40,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356286768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:06:40,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:06:40,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:06:40,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262546538] [2023-08-25 04:06:40,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:06:40,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:06:40,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:06:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:06:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:06:40,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 398 [2023-08-25 04:06:40,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2023-08-25 04:06:40,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:06:40,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 398 [2023-08-25 04:06:40,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:06:41,103 INFO L124 PetriNetUnfolderBase]: 4793/11794 cut-off events. [2023-08-25 04:06:41,103 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2023-08-25 04:06:41,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19504 conditions, 11794 events. 4793/11794 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 107147 event pairs, 1833 based on Foata normal form. 0/10663 useless extension candidates. Maximal degree in co-relation 19499. Up to 7431 conditions per place. [2023-08-25 04:06:41,178 INFO L140 encePairwiseOnDemand]: 392/398 looper letters, 58 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-25 04:06:41,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 124 transitions, 391 flow [2023-08-25 04:06:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:06:41,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:06:41,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2023-08-25 04:06:41,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5787269681742043 [2023-08-25 04:06:41,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 691 transitions. [2023-08-25 04:06:41,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 691 transitions. [2023-08-25 04:06:41,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:06:41,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 691 transitions. [2023-08-25 04:06:41,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 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) [2023-08-25 04:06:41,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 398.0) internal successors, (1592), 4 states have internal predecessors, (1592), 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) [2023-08-25 04:06:41,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 398.0) internal successors, (1592), 4 states have internal predecessors, (1592), 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) [2023-08-25 04:06:41,189 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 244 flow. Second operand 3 states and 691 transitions. [2023-08-25 04:06:41,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 124 transitions, 391 flow [2023-08-25 04:06:41,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 124 transitions, 391 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:06:41,195 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 250 flow [2023-08-25 04:06:41,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=398, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2023-08-25 04:06:41,197 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -4 predicate places. [2023-08-25 04:06:41,197 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 250 flow [2023-08-25 04:06:41,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2023-08-25 04:06:41,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:41,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:06:41,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:06:41,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 04:06:41,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:41,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1852746415, now seen corresponding path program 1 times [2023-08-25 04:06:41,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:41,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305341548] [2023-08-25 04:06:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:41,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:06:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:06:41,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:06:41,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305341548] [2023-08-25 04:06:41,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305341548] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:06:41,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:06:41,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:06:41,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764968915] [2023-08-25 04:06:41,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:06:41,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:06:41,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:06:41,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:06:41,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:06:41,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 398 [2023-08-25 04:06:41,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2023-08-25 04:06:41,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:06:41,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 398 [2023-08-25 04:06:41,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:06:42,117 INFO L124 PetriNetUnfolderBase]: 3259/8999 cut-off events. [2023-08-25 04:06:42,117 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-08-25 04:06:42,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14532 conditions, 8999 events. 3259/8999 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 84633 event pairs, 2941 based on Foata normal form. 0/8080 useless extension candidates. Maximal degree in co-relation 14526. Up to 5251 conditions per place. [2023-08-25 04:06:42,170 INFO L140 encePairwiseOnDemand]: 395/398 looper letters, 52 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2023-08-25 04:06:42,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 125 transitions, 386 flow [2023-08-25 04:06:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:06:42,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:06:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2023-08-25 04:06:42,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5879396984924623 [2023-08-25 04:06:42,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 702 transitions. [2023-08-25 04:06:42,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 702 transitions. [2023-08-25 04:06:42,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:06:42,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 702 transitions. [2023-08-25 04:06:42,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 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) [2023-08-25 04:06:42,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 398.0) internal successors, (1592), 4 states have internal predecessors, (1592), 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) [2023-08-25 04:06:42,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 398.0) internal successors, (1592), 4 states have internal predecessors, (1592), 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) [2023-08-25 04:06:42,178 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 250 flow. Second operand 3 states and 702 transitions. [2023-08-25 04:06:42,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 125 transitions, 386 flow [2023-08-25 04:06:42,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 125 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:06:42,182 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 262 flow [2023-08-25 04:06:42,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=398, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2023-08-25 04:06:42,182 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -1 predicate places. [2023-08-25 04:06:42,183 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 262 flow [2023-08-25 04:06:42,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2023-08-25 04:06:42,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:42,183 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 04:06:42,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:06:42,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-25 04:06:42,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:42,184 INFO L85 PathProgramCache]: Analyzing trace with hash -831433536, now seen corresponding path program 1 times [2023-08-25 04:06:42,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:42,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687404555] [2023-08-25 04:06:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:42,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:06:42,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:06:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:06:42,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:06:42,223 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:06:42,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-08-25 04:06:42,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2023-08-25 04:06:42,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-25 04:06:42,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2023-08-25 04:06:42,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-08-25 04:06:42,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2023-08-25 04:06:42,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-25 04:06:42,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (18 of 26 remaining) [2023-08-25 04:06:42,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-25 04:06:42,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2023-08-25 04:06:42,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-25 04:06:42,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-25 04:06:42,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-25 04:06:42,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-08-25 04:06:42,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-25 04:06:42,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-25 04:06:42,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-25 04:06:42,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-25 04:06:42,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-08-25 04:06:42,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:06:42,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 04:06:42,234 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:06:42,234 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 04:06:42,266 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:06:42,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 315 transitions, 660 flow [2023-08-25 04:06:42,339 INFO L124 PetriNetUnfolderBase]: 54/590 cut-off events. [2023-08-25 04:06:42,339 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:06:42,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 590 events. 54/590 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2618 event pairs, 1 based on Foata normal form. 0/491 useless extension candidates. Maximal degree in co-relation 398. Up to 16 conditions per place. [2023-08-25 04:06:42,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 315 transitions, 660 flow [2023-08-25 04:06:42,352 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 315 transitions, 660 flow [2023-08-25 04:06:42,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:06:42,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 315 transitions, 660 flow [2023-08-25 04:06:42,353 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 315 transitions, 660 flow [2023-08-25 04:06:42,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 315 transitions, 660 flow [2023-08-25 04:06:42,449 INFO L124 PetriNetUnfolderBase]: 54/590 cut-off events. [2023-08-25 04:06:42,449 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:06:42,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 590 events. 54/590 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2618 event pairs, 1 based on Foata normal form. 0/491 useless extension candidates. Maximal degree in co-relation 398. Up to 16 conditions per place. [2023-08-25 04:06:42,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 53460 [2023-08-25 04:06:45,968 INFO L134 LiptonReduction]: Checked pairs total: 355740 [2023-08-25 04:06:45,968 INFO L136 LiptonReduction]: Total number of compositions: 173 [2023-08-25 04:06:45,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:06:45,971 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;@2cacb6a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:06:45,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-08-25 04:06:45,971 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:06:45,971 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:06:45,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:06:45,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:45,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:06:45,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:06:45,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1671, now seen corresponding path program 1 times [2023-08-25 04:06:45,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:45,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099826229] [2023-08-25 04:06:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:06:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:06:45,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:06:45,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099826229] [2023-08-25 04:06:45,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099826229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:06:45,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:06:45,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:06:45,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79443160] [2023-08-25 04:06:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:06:45,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:06:45,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:06:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:06:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:06:45,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 488 [2023-08-25 04:06:45,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 181 transitions, 392 flow. Second operand has 2 states, 2 states have (on average 284.5) internal successors, (569), 2 states have internal predecessors, (569), 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) [2023-08-25 04:06:45,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:06:45,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 488 [2023-08-25 04:06:45,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:06:57,523 INFO L124 PetriNetUnfolderBase]: 65024/131278 cut-off events. [2023-08-25 04:06:57,523 INFO L125 PetriNetUnfolderBase]: For 1935/1935 co-relation queries the response was YES. [2023-08-25 04:06:57,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223098 conditions, 131278 events. 65024/131278 cut-off events. For 1935/1935 co-relation queries the response was YES. Maximal size of possible extension queue 2787. Compared 1503402 event pairs, 64813 based on Foata normal form. 17757/135696 useless extension candidates. Maximal degree in co-relation 120539. Up to 90463 conditions per place. [2023-08-25 04:06:58,522 INFO L140 encePairwiseOnDemand]: 463/488 looper letters, 53 selfloop transitions, 0 changer transitions 0/156 dead transitions. [2023-08-25 04:06:58,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 156 transitions, 448 flow [2023-08-25 04:06:58,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:06:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:06:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 646 transitions. [2023-08-25 04:06:58,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6618852459016393 [2023-08-25 04:06:58,525 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 646 transitions. [2023-08-25 04:06:58,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 646 transitions. [2023-08-25 04:06:58,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:06:58,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 646 transitions. [2023-08-25 04:06:58,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 323.0) internal successors, (646), 2 states have internal predecessors, (646), 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) [2023-08-25 04:06:58,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 488.0) internal successors, (1464), 3 states have internal predecessors, (1464), 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) [2023-08-25 04:06:58,529 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 488.0) internal successors, (1464), 3 states have internal predecessors, (1464), 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) [2023-08-25 04:06:58,529 INFO L175 Difference]: Start difference. First operand has 164 places, 181 transitions, 392 flow. Second operand 2 states and 646 transitions. [2023-08-25 04:06:58,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 156 transitions, 448 flow [2023-08-25 04:06:58,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 156 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:06:58,533 INFO L231 Difference]: Finished difference. Result has 161 places, 156 transitions, 342 flow [2023-08-25 04:06:58,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=342, PETRI_PLACES=161, PETRI_TRANSITIONS=156} [2023-08-25 04:06:58,534 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -3 predicate places. [2023-08-25 04:06:58,535 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 156 transitions, 342 flow [2023-08-25 04:06:58,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 284.5) internal successors, (569), 2 states have internal predecessors, (569), 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) [2023-08-25 04:06:58,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:06:58,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:06:58,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:06:58,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:06:58,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:06:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1437782588, now seen corresponding path program 1 times [2023-08-25 04:06:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:06:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188893486] [2023-08-25 04:06:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:06:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:06:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:06:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:06:58,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:06:58,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188893486] [2023-08-25 04:06:58,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188893486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:06:58,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:06:58,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:06:58,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289693941] [2023-08-25 04:06:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:06:58,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:06:58,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:06:58,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:06:58,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:06:58,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 488 [2023-08-25 04:06:58,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 156 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2023-08-25 04:06:58,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:06:58,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 488 [2023-08-25 04:06:58,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:07:15,488 INFO L124 PetriNetUnfolderBase]: 113278/217631 cut-off events. [2023-08-25 04:07:15,488 INFO L125 PetriNetUnfolderBase]: For 2642/2642 co-relation queries the response was YES. [2023-08-25 04:07:16,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376140 conditions, 217631 events. 113278/217631 cut-off events. For 2642/2642 co-relation queries the response was YES. Maximal size of possible extension queue 4146. Compared 2477451 event pairs, 60422 based on Foata normal form. 0/198912 useless extension candidates. Maximal degree in co-relation 376134. Up to 155960 conditions per place. [2023-08-25 04:07:17,025 INFO L140 encePairwiseOnDemand]: 479/488 looper letters, 77 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2023-08-25 04:07:17,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 169 transitions, 540 flow [2023-08-25 04:07:17,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:07:17,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:07:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 875 transitions. [2023-08-25 04:07:17,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5976775956284153 [2023-08-25 04:07:17,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 875 transitions. [2023-08-25 04:07:17,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 875 transitions. [2023-08-25 04:07:17,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:07:17,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 875 transitions. [2023-08-25 04:07:17,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 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) [2023-08-25 04:07:17,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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) [2023-08-25 04:07:17,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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) [2023-08-25 04:07:17,035 INFO L175 Difference]: Start difference. First operand has 161 places, 156 transitions, 342 flow. Second operand 3 states and 875 transitions. [2023-08-25 04:07:17,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 169 transitions, 540 flow [2023-08-25 04:07:17,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 169 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:07:17,043 INFO L231 Difference]: Finished difference. Result has 158 places, 153 transitions, 351 flow [2023-08-25 04:07:17,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=158, PETRI_TRANSITIONS=153} [2023-08-25 04:07:17,044 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -6 predicate places. [2023-08-25 04:07:17,044 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 153 transitions, 351 flow [2023-08-25 04:07:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2023-08-25 04:07:17,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:07:17,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:07:17,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:07:17,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:07:17,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:07:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash -594577163, now seen corresponding path program 1 times [2023-08-25 04:07:17,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:07:17,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936716981] [2023-08-25 04:07:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:07:17,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:07:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:07:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:07:17,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:07:17,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936716981] [2023-08-25 04:07:17,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936716981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:07:17,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:07:17,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:07:17,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290893796] [2023-08-25 04:07:17,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:07:17,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:07:17,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:07:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:07:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:07:17,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 488 [2023-08-25 04:07:17,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 153 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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) [2023-08-25 04:07:17,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:07:17,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 488 [2023-08-25 04:07:17,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:07:29,411 INFO L124 PetriNetUnfolderBase]: 69057/147301 cut-off events. [2023-08-25 04:07:29,411 INFO L125 PetriNetUnfolderBase]: For 4551/4551 co-relation queries the response was YES. [2023-08-25 04:07:29,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248423 conditions, 147301 events. 69057/147301 cut-off events. For 4551/4551 co-relation queries the response was YES. Maximal size of possible extension queue 3032. Compared 1783777 event pairs, 45312 based on Foata normal form. 0/135660 useless extension candidates. Maximal degree in co-relation 248416. Up to 96689 conditions per place. [2023-08-25 04:07:30,431 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 66 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2023-08-25 04:07:30,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 167 transitions, 515 flow [2023-08-25 04:07:30,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:07:30,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:07:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2023-08-25 04:07:30,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6120218579234973 [2023-08-25 04:07:30,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2023-08-25 04:07:30,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2023-08-25 04:07:30,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:07:30,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2023-08-25 04:07:30,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 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) [2023-08-25 04:07:30,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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) [2023-08-25 04:07:30,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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) [2023-08-25 04:07:30,440 INFO L175 Difference]: Start difference. First operand has 158 places, 153 transitions, 351 flow. Second operand 3 states and 896 transitions. [2023-08-25 04:07:30,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 167 transitions, 515 flow [2023-08-25 04:07:30,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 167 transitions, 515 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:07:30,446 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 363 flow [2023-08-25 04:07:30,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2023-08-25 04:07:30,446 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -3 predicate places. [2023-08-25 04:07:30,447 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 363 flow [2023-08-25 04:07:30,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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) [2023-08-25 04:07:30,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:07:30,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:07:30,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 04:07:30,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:07:30,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:07:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash -964111765, now seen corresponding path program 1 times [2023-08-25 04:07:30,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:07:30,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494492667] [2023-08-25 04:07:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:07:30,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:07:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:07:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:07:30,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:07:30,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494492667] [2023-08-25 04:07:30,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494492667] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:07:30,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209862742] [2023-08-25 04:07:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:07:30,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:07:30,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:07:30,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 04:07:30,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 04:07:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:07:30,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 04:07:30,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:07:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:07:30,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:07:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:07:30,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209862742] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 04:07:30,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 04:07:30,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-25 04:07:30,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064915556] [2023-08-25 04:07:30,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 04:07:30,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 04:07:30,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:07:30,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 04:07:30,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-25 04:07:30,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 488 [2023-08-25 04:07:30,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 363 flow. Second operand has 7 states, 7 states have (on average 278.14285714285717) internal successors, (1947), 7 states have internal predecessors, (1947), 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) [2023-08-25 04:07:30,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:07:30,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 488 [2023-08-25 04:07:30,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:07:34,035 INFO L124 PetriNetUnfolderBase]: 18569/39634 cut-off events. [2023-08-25 04:07:34,035 INFO L125 PetriNetUnfolderBase]: For 7904/7904 co-relation queries the response was YES. [2023-08-25 04:07:34,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72531 conditions, 39634 events. 18569/39634 cut-off events. For 7904/7904 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 406824 event pairs, 2124 based on Foata normal form. 2707/41698 useless extension candidates. Maximal degree in co-relation 72522. Up to 18532 conditions per place. [2023-08-25 04:07:34,254 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 118 selfloop transitions, 4 changer transitions 0/207 dead transitions. [2023-08-25 04:07:34,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 207 transitions, 714 flow [2023-08-25 04:07:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:07:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:07:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1778 transitions. [2023-08-25 04:07:34,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.60724043715847 [2023-08-25 04:07:34,258 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1778 transitions. [2023-08-25 04:07:34,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1778 transitions. [2023-08-25 04:07:34,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:07:34,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1778 transitions. [2023-08-25 04:07:34,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 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) [2023-08-25 04:07:34,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 488.0) internal successors, (3416), 7 states have internal predecessors, (3416), 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) [2023-08-25 04:07:34,268 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 488.0) internal successors, (3416), 7 states have internal predecessors, (3416), 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) [2023-08-25 04:07:34,268 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 363 flow. Second operand 6 states and 1778 transitions. [2023-08-25 04:07:34,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 207 transitions, 714 flow [2023-08-25 04:07:34,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 207 transitions, 706 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 04:07:34,277 INFO L231 Difference]: Finished difference. Result has 143 places, 130 transitions, 306 flow [2023-08-25 04:07:34,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=143, PETRI_TRANSITIONS=130} [2023-08-25 04:07:34,278 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -21 predicate places. [2023-08-25 04:07:34,278 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 130 transitions, 306 flow [2023-08-25 04:07:34,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 278.14285714285717) internal successors, (1947), 7 states have internal predecessors, (1947), 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) [2023-08-25 04:07:34,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:07:34,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:07:34,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 04:07:34,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-25 04:07:34,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:07:34,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:07:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 158459235, now seen corresponding path program 1 times [2023-08-25 04:07:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:07:34,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906793617] [2023-08-25 04:07:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:07:34,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:07:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:07:34,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:07:34,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:07:34,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906793617] [2023-08-25 04:07:34,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906793617] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:07:34,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:07:34,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:07:34,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070525370] [2023-08-25 04:07:34,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:07:34,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:07:34,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:07:34,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:07:34,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:07:34,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 488 [2023-08-25 04:07:34,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 130 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 187.83333333333334) internal successors, (1127), 6 states have internal predecessors, (1127), 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) [2023-08-25 04:07:34,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:07:34,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 488 [2023-08-25 04:07:34,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:09:22,730 INFO L124 PetriNetUnfolderBase]: 891170/1260491 cut-off events. [2023-08-25 04:09:22,730 INFO L125 PetriNetUnfolderBase]: For 367307/367307 co-relation queries the response was YES. [2023-08-25 04:09:27,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2755087 conditions, 1260491 events. 891170/1260491 cut-off events. For 367307/367307 co-relation queries the response was YES. Maximal size of possible extension queue 13627. Compared 10719390 event pairs, 228670 based on Foata normal form. 0/1144159 useless extension candidates. Maximal degree in co-relation 2755078. Up to 429826 conditions per place. [2023-08-25 04:09:34,322 INFO L140 encePairwiseOnDemand]: 422/488 looper letters, 411 selfloop transitions, 126 changer transitions 0/556 dead transitions. [2023-08-25 04:09:34,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 556 transitions, 2328 flow [2023-08-25 04:09:34,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:09:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:09:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1648 transitions. [2023-08-25 04:09:34,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5628415300546448 [2023-08-25 04:09:34,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1648 transitions. [2023-08-25 04:09:34,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1648 transitions. [2023-08-25 04:09:34,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:09:34,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1648 transitions. [2023-08-25 04:09:34,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 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) [2023-08-25 04:09:34,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 488.0) internal successors, (3416), 7 states have internal predecessors, (3416), 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) [2023-08-25 04:09:34,337 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 488.0) internal successors, (3416), 7 states have internal predecessors, (3416), 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) [2023-08-25 04:09:34,337 INFO L175 Difference]: Start difference. First operand has 143 places, 130 transitions, 306 flow. Second operand 6 states and 1648 transitions. [2023-08-25 04:09:34,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 556 transitions, 2328 flow [2023-08-25 04:09:34,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 556 transitions, 2295 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-25 04:09:34,781 INFO L231 Difference]: Finished difference. Result has 150 places, 268 transitions, 1245 flow [2023-08-25 04:09:34,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1245, PETRI_PLACES=150, PETRI_TRANSITIONS=268} [2023-08-25 04:09:34,783 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -14 predicate places. [2023-08-25 04:09:34,783 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 268 transitions, 1245 flow [2023-08-25 04:09:34,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.83333333333334) internal successors, (1127), 6 states have internal predecessors, (1127), 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) [2023-08-25 04:09:34,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:34,784 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-25 04:09:34,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:09:34,784 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-25 04:09:34,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:34,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2119118037, now seen corresponding path program 1 times [2023-08-25 04:09:34,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:34,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792567448] [2023-08-25 04:09:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:34,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:09:34,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:09:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:09:34,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:09:34,874 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2023-08-25 04:09:34,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (24 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2023-08-25 04:09:34,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2023-08-25 04:09:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2023-08-25 04:09:34,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2023-08-25 04:09:34,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:09:34,879 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 04:09:34,889 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:09:34,889 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-25 04:09:34,955 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 04:09:34,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 358 places, 383 transitions, 810 flow [2023-08-25 04:09:35,172 INFO L124 PetriNetUnfolderBase]: 86/882 cut-off events. [2023-08-25 04:09:35,172 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-08-25 04:09:35,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 882 events. 86/882 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4259 event pairs, 6 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 610. Up to 32 conditions per place. [2023-08-25 04:09:35,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 358 places, 383 transitions, 810 flow [2023-08-25 04:09:35,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 358 places, 383 transitions, 810 flow [2023-08-25 04:09:35,200 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:09:35,200 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 358 places, 383 transitions, 810 flow [2023-08-25 04:09:35,200 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 358 places, 383 transitions, 810 flow [2023-08-25 04:09:35,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 358 places, 383 transitions, 810 flow [2023-08-25 04:09:35,324 INFO L124 PetriNetUnfolderBase]: 86/882 cut-off events. [2023-08-25 04:09:35,324 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-08-25 04:09:35,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 882 events. 86/882 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4259 event pairs, 6 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 610. Up to 32 conditions per place. [2023-08-25 04:09:35,387 INFO L119 LiptonReduction]: Number of co-enabled transitions 89496 [2023-08-25 04:09:39,397 INFO L134 LiptonReduction]: Checked pairs total: 564897 [2023-08-25 04:09:39,398 INFO L136 LiptonReduction]: Total number of compositions: 202 [2023-08-25 04:09:39,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:09:39,401 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;@2cacb6a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:09:39,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-25 04:09:39,402 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:09:39,402 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:09:39,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:09:39,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:09:39,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:09:39,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 04:09:39,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:09:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2325, now seen corresponding path program 1 times [2023-08-25 04:09:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:09:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61392372] [2023-08-25 04:09:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:09:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:09:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:09:39,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:09:39,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:09:39,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61392372] [2023-08-25 04:09:39,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61392372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:09:39,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:09:39,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:09:39,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105980406] [2023-08-25 04:09:39,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:09:39,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:09:39,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:09:39,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:09:39,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:09:39,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 585 [2023-08-25 04:09:39,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 230 transitions, 504 flow. Second operand has 2 states, 2 states have (on average 344.5) internal successors, (689), 2 states have internal predecessors, (689), 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) [2023-08-25 04:09:39,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:09:39,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 585 [2023-08-25 04:09:39,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand