/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_61-invariant_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:10:08,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:10:08,293 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 04:10:08,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:10:08,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:10:08,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:10:08,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:10:08,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:10:08,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:10:08,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:10:08,335 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:10:08,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:10:08,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:10:08,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:10:08,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:10:08,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:10:08,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:10:08,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:10:08,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:10:08,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:10:08,338 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:10:08,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:10:08,339 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:10:08,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:10:08,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:10:08,339 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:10:08,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:10:08,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:10:08,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:10:08,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:10:08,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:10:08,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:10:08,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:10:08,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:10:08,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:10:08,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:10:08,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:10:08,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:10:08,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:10:08,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:10:08,676 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:10:08,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_61-invariant_racing.i [2023-08-25 04:10:09,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:10:10,150 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:10:10,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_61-invariant_racing.i [2023-08-25 04:10:10,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddf979c6/272e19ef0d76441fae963c09ad4a2e4a/FLAGad9f08892 [2023-08-25 04:10:10,183 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddf979c6/272e19ef0d76441fae963c09ad4a2e4a [2023-08-25 04:10:10,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:10:10,186 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:10:10,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:10:10,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:10:10,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:10:10,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc81b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10, skipping insertion in model container [2023-08-25 04:10:10,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,226 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:10:10,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:10:10,463 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:10:10,495 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:10:10,496 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:10:10,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:10:10,572 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:10:10,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10 WrapperNode [2023-08-25 04:10:10,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:10:10,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:10:10,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:10:10,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:10:10,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,631 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 120 [2023-08-25 04:10:10,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:10:10,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:10:10,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:10:10,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:10:10,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:10:10,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:10:10,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:10:10,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:10:10,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (1/1) ... [2023-08-25 04:10:10,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:10:10,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:10:10,713 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 04:10:10,742 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 04:10:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:10:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:10:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:10:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:10:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:10:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 04:10:10,752 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 04:10:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:10:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:10:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:10:10,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:10:10,754 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 04:10:10,884 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:10:10,885 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:10:11,075 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:10:11,082 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:10:11,083 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-25 04:10:11,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:10:11 BoogieIcfgContainer [2023-08-25 04:10:11,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:10:11,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:10:11,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:10:11,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:10:11,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:10:10" (1/3) ... [2023-08-25 04:10:11,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d87dcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:10:11, skipping insertion in model container [2023-08-25 04:10:11,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:10" (2/3) ... [2023-08-25 04:10:11,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d87dcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:10:11, skipping insertion in model container [2023-08-25 04:10:11,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:10:11" (3/3) ... [2023-08-25 04:10:11,091 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2023-08-25 04:10:11,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:10:11,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-25 04:10:11,108 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:10:11,159 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 04:10:11,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 174 transitions, 356 flow [2023-08-25 04:10:11,310 INFO L124 PetriNetUnfolderBase]: 32/260 cut-off events. [2023-08-25 04:10:11,310 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:10:11,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 260 events. 32/260 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1047 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2023-08-25 04:10:11,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 174 transitions, 356 flow [2023-08-25 04:10:11,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 174 transitions, 356 flow [2023-08-25 04:10:11,332 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:10:11,354 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 174 transitions, 356 flow [2023-08-25 04:10:11,357 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 174 transitions, 356 flow [2023-08-25 04:10:11,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 174 transitions, 356 flow [2023-08-25 04:10:11,410 INFO L124 PetriNetUnfolderBase]: 32/260 cut-off events. [2023-08-25 04:10:11,411 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:10:11,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 260 events. 32/260 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1047 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2023-08-25 04:10:11,421 INFO L119 LiptonReduction]: Number of co-enabled transitions 9200 [2023-08-25 04:10:13,997 INFO L134 LiptonReduction]: Checked pairs total: 38458 [2023-08-25 04:10:13,997 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-25 04:10:14,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:14,015 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;@4be01bbb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:14,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-25 04:10:14,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:14,019 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2023-08-25 04:10:14,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:14,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:14,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:14,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-08-25 04:10:14,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash 591153538, now seen corresponding path program 1 times [2023-08-25 04:10:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:14,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878636578] [2023-08-25 04:10:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:14,198 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 04:10:14,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878636578] [2023-08-25 04:10:14,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878636578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:14,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:14,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:14,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445908904] [2023-08-25 04:10:14,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:14,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:14,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:14,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:14,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:14,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 285 [2023-08-25 04:10:14,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 87 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 04:10:14,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:14,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 285 [2023-08-25 04:10:14,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:14,375 INFO L124 PetriNetUnfolderBase]: 229/709 cut-off events. [2023-08-25 04:10:14,376 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:10:14,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 709 events. 229/709 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4033 event pairs, 0 based on Foata normal form. 42/653 useless extension candidates. Maximal degree in co-relation 1158. Up to 461 conditions per place. [2023-08-25 04:10:14,380 INFO L140 encePairwiseOnDemand]: 266/285 looper letters, 44 selfloop transitions, 2 changer transitions 2/84 dead transitions. [2023-08-25 04:10:14,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 84 transitions, 272 flow [2023-08-25 04:10:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2023-08-25 04:10:14,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.591812865497076 [2023-08-25 04:10:14,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 506 transitions. [2023-08-25 04:10:14,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 506 transitions. [2023-08-25 04:10:14,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:14,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 506 transitions. [2023-08-25 04:10:14,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 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 04:10:14,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 285.0) internal successors, (1140), 4 states have internal predecessors, (1140), 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 04:10:14,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 285.0) internal successors, (1140), 4 states have internal predecessors, (1140), 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 04:10:14,415 INFO L175 Difference]: Start difference. First operand has 73 places, 87 transitions, 182 flow. Second operand 3 states and 506 transitions. [2023-08-25 04:10:14,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 84 transitions, 272 flow [2023-08-25 04:10:14,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 84 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:14,421 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 151 flow [2023-08-25 04:10:14,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=285, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2023-08-25 04:10:14,430 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 2 predicate places. [2023-08-25 04:10:14,430 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 151 flow [2023-08-25 04:10:14,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 04:10:14,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:14,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:10:14,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:10:14,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-08-25 04:10:14,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:14,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1165861467, now seen corresponding path program 1 times [2023-08-25 04:10:14,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052400330] [2023-08-25 04:10:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:14,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:14,494 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 04:10:14,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:14,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052400330] [2023-08-25 04:10:14,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052400330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:14,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:14,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:14,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750535151] [2023-08-25 04:10:14,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:14,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:14,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:14,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:14,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:14,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 285 [2023-08-25 04:10:14,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 04:10:14,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:14,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 285 [2023-08-25 04:10:14,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:14,790 INFO L124 PetriNetUnfolderBase]: 863/2014 cut-off events. [2023-08-25 04:10:14,790 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-25 04:10:14,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3911 conditions, 2014 events. 863/2014 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 11983 event pairs, 321 based on Foata normal form. 0/1666 useless extension candidates. Maximal degree in co-relation 3893. Up to 957 conditions per place. [2023-08-25 04:10:14,801 INFO L140 encePairwiseOnDemand]: 263/285 looper letters, 90 selfloop transitions, 16 changer transitions 0/118 dead transitions. [2023-08-25 04:10:14,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 118 transitions, 466 flow [2023-08-25 04:10:14,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2023-08-25 04:10:14,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5625730994152047 [2023-08-25 04:10:14,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2023-08-25 04:10:14,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2023-08-25 04:10:14,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:14,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2023-08-25 04:10:14,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 04:10:14,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 285.0) internal successors, (1140), 4 states have internal predecessors, (1140), 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 04:10:14,809 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 285.0) internal successors, (1140), 4 states have internal predecessors, (1140), 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 04:10:14,809 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 151 flow. Second operand 3 states and 481 transitions. [2023-08-25 04:10:14,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 118 transitions, 466 flow [2023-08-25 04:10:14,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 118 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:10:14,813 INFO L231 Difference]: Finished difference. Result has 76 places, 85 transitions, 287 flow [2023-08-25 04:10:14,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=285, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=287, PETRI_PLACES=76, PETRI_TRANSITIONS=85} [2023-08-25 04:10:14,814 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 3 predicate places. [2023-08-25 04:10:14,814 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 85 transitions, 287 flow [2023-08-25 04:10:14,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 04:10:14,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:14,815 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 04:10:14,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:10:14,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-08-25 04:10:14,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1165943508, now seen corresponding path program 1 times [2023-08-25 04:10:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:14,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927282002] [2023-08-25 04:10:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:14,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:14,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:10:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:14,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:10:14,920 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:10:14,922 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-08-25 04:10:14,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-08-25 04:10:14,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-08-25 04:10:14,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-08-25 04:10:14,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-08-25 04:10:14,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-08-25 04:10:14,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-08-25 04:10:14,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (10 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-08-25 04:10:14,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-08-25 04:10:14,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-08-25 04:10:14,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-08-25 04:10:14,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-08-25 04:10:14,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:10:14,929 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 04:10:14,931 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:10:14,931 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 04:10:14,953 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:10:14,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 226 transitions, 470 flow [2023-08-25 04:10:14,998 INFO L124 PetriNetUnfolderBase]: 54/429 cut-off events. [2023-08-25 04:10:14,999 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:10:15,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 429 events. 54/429 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1949 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 262. Up to 9 conditions per place. [2023-08-25 04:10:15,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 226 transitions, 470 flow [2023-08-25 04:10:15,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 226 transitions, 470 flow [2023-08-25 04:10:15,006 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:10:15,006 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 226 transitions, 470 flow [2023-08-25 04:10:15,006 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 226 transitions, 470 flow [2023-08-25 04:10:15,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 226 transitions, 470 flow [2023-08-25 04:10:15,043 INFO L124 PetriNetUnfolderBase]: 54/429 cut-off events. [2023-08-25 04:10:15,043 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:10:15,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 429 events. 54/429 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1949 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 262. Up to 9 conditions per place. [2023-08-25 04:10:15,060 INFO L119 LiptonReduction]: Number of co-enabled transitions 24500 [2023-08-25 04:10:17,519 INFO L134 LiptonReduction]: Checked pairs total: 109308 [2023-08-25 04:10:17,519 INFO L136 LiptonReduction]: Total number of compositions: 130 [2023-08-25 04:10:17,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:17,521 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;@4be01bbb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:17,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-25 04:10:17,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:17,524 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-08-25 04:10:17,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:17,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:17,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:17,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 04:10:17,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:17,525 INFO L85 PathProgramCache]: Analyzing trace with hash 980366630, now seen corresponding path program 1 times [2023-08-25 04:10:17,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:17,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160431796] [2023-08-25 04:10:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:17,553 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 04:10:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160431796] [2023-08-25 04:10:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160431796] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:17,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:17,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72451382] [2023-08-25 04:10:17,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:17,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:17,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 356 [2023-08-25 04:10:17,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 129 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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 04:10:17,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:17,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 356 [2023-08-25 04:10:17,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:18,374 INFO L124 PetriNetUnfolderBase]: 5440/11049 cut-off events. [2023-08-25 04:10:18,375 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-08-25 04:10:18,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19500 conditions, 11049 events. 5440/11049 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 93539 event pairs, 2343 based on Foata normal form. 1304/11025 useless extension candidates. Maximal degree in co-relation 2135. Up to 8352 conditions per place. [2023-08-25 04:10:18,444 INFO L140 encePairwiseOnDemand]: 330/356 looper letters, 59 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2023-08-25 04:10:18,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 118 transitions, 376 flow [2023-08-25 04:10:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2023-08-25 04:10:18,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6161048689138576 [2023-08-25 04:10:18,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2023-08-25 04:10:18,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2023-08-25 04:10:18,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:18,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2023-08-25 04:10:18,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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 04:10:18,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 356.0) internal successors, (1424), 4 states have internal predecessors, (1424), 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 04:10:18,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 356.0) internal successors, (1424), 4 states have internal predecessors, (1424), 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 04:10:18,455 INFO L175 Difference]: Start difference. First operand has 108 places, 129 transitions, 276 flow. Second operand 3 states and 658 transitions. [2023-08-25 04:10:18,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 118 transitions, 376 flow [2023-08-25 04:10:18,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 118 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:18,463 INFO L231 Difference]: Finished difference. Result has 109 places, 106 transitions, 240 flow [2023-08-25 04:10:18,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=356, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=109, PETRI_TRANSITIONS=106} [2023-08-25 04:10:18,465 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, 1 predicate places. [2023-08-25 04:10:18,465 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 106 transitions, 240 flow [2023-08-25 04:10:18,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 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 04:10:18,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:18,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:10:18,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:10:18,466 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 04:10:18,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:18,467 INFO L85 PathProgramCache]: Analyzing trace with hash 349499484, now seen corresponding path program 1 times [2023-08-25 04:10:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:18,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167395549] [2023-08-25 04:10:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:18,502 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 04:10:18,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:18,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167395549] [2023-08-25 04:10:18,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167395549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:18,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:18,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:18,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686658460] [2023-08-25 04:10:18,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:18,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:18,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:18,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:18,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:18,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 356 [2023-08-25 04:10:18,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 04:10:18,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:18,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 356 [2023-08-25 04:10:18,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:22,865 INFO L124 PetriNetUnfolderBase]: 40686/71343 cut-off events. [2023-08-25 04:10:22,865 INFO L125 PetriNetUnfolderBase]: For 1359/1359 co-relation queries the response was YES. [2023-08-25 04:10:22,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136277 conditions, 71343 events. 40686/71343 cut-off events. For 1359/1359 co-relation queries the response was YES. Maximal size of possible extension queue 1354. Compared 636052 event pairs, 15839 based on Foata normal form. 0/58240 useless extension candidates. Maximal degree in co-relation 136135. Up to 33291 conditions per place. [2023-08-25 04:10:23,230 INFO L140 encePairwiseOnDemand]: 323/356 looper letters, 125 selfloop transitions, 24 changer transitions 0/175 dead transitions. [2023-08-25 04:10:23,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 175 transitions, 694 flow [2023-08-25 04:10:23,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2023-08-25 04:10:23,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730337078651685 [2023-08-25 04:10:23,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2023-08-25 04:10:23,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2023-08-25 04:10:23,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:23,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2023-08-25 04:10:23,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 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 04:10:23,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 356.0) internal successors, (1424), 4 states have internal predecessors, (1424), 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 04:10:23,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 356.0) internal successors, (1424), 4 states have internal predecessors, (1424), 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 04:10:23,244 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 240 flow. Second operand 3 states and 612 transitions. [2023-08-25 04:10:23,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 175 transitions, 694 flow [2023-08-25 04:10:23,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 175 transitions, 691 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:10:23,253 INFO L231 Difference]: Finished difference. Result has 112 places, 130 transitions, 448 flow [2023-08-25 04:10:23,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=356, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=112, PETRI_TRANSITIONS=130} [2023-08-25 04:10:23,255 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, 4 predicate places. [2023-08-25 04:10:23,255 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 130 transitions, 448 flow [2023-08-25 04:10:23,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 04:10:23,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:23,256 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 04:10:23,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:10:23,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 04:10:23,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1546004142, now seen corresponding path program 1 times [2023-08-25 04:10:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:23,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369127921] [2023-08-25 04:10:23,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:23,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:23,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:10:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:23,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:10:23,306 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:10:23,307 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-08-25 04:10:23,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2023-08-25 04:10:23,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2023-08-25 04:10:23,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2023-08-25 04:10:23,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2023-08-25 04:10:23,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (15 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2023-08-25 04:10:23,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2023-08-25 04:10:23,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2023-08-25 04:10:23,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2023-08-25 04:10:23,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2023-08-25 04:10:23,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:10:23,310 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 04:10:23,310 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:10:23,311 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 04:10:23,346 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:10:23,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 278 transitions, 586 flow [2023-08-25 04:10:23,411 INFO L124 PetriNetUnfolderBase]: 81/643 cut-off events. [2023-08-25 04:10:23,411 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:10:23,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 643 events. 81/643 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3080 event pairs, 1 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 437. Up to 16 conditions per place. [2023-08-25 04:10:23,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 278 transitions, 586 flow [2023-08-25 04:10:23,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 278 transitions, 586 flow [2023-08-25 04:10:23,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:10:23,426 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 278 transitions, 586 flow [2023-08-25 04:10:23,428 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 278 transitions, 586 flow [2023-08-25 04:10:23,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 278 transitions, 586 flow [2023-08-25 04:10:23,648 INFO L124 PetriNetUnfolderBase]: 81/643 cut-off events. [2023-08-25 04:10:23,649 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:10:23,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 643 events. 81/643 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3080 event pairs, 1 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 437. Up to 16 conditions per place. [2023-08-25 04:10:23,679 INFO L119 LiptonReduction]: Number of co-enabled transitions 44700 [2023-08-25 04:10:26,258 INFO L134 LiptonReduction]: Checked pairs total: 243060 [2023-08-25 04:10:26,258 INFO L136 LiptonReduction]: Total number of compositions: 153 [2023-08-25 04:10:26,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:26,261 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;@4be01bbb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:26,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-25 04:10:26,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:26,263 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2023-08-25 04:10:26,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:26,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:26,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:26,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 04:10:26,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:26,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1441023700, now seen corresponding path program 1 times [2023-08-25 04:10:26,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:26,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359836263] [2023-08-25 04:10:26,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:26,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:26,286 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 04:10:26,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:26,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359836263] [2023-08-25 04:10:26,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359836263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:26,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:26,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060025055] [2023-08-25 04:10:26,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:26,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:26,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:26,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:26,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:26,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 431 [2023-08-25 04:10:26,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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 04:10:26,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:26,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 431 [2023-08-25 04:10:26,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:37,311 INFO L124 PetriNetUnfolderBase]: 101716/167087 cut-off events. [2023-08-25 04:10:37,311 INFO L125 PetriNetUnfolderBase]: For 1528/1528 co-relation queries the response was YES. [2023-08-25 04:10:37,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305972 conditions, 167087 events. 101716/167087 cut-off events. For 1528/1528 co-relation queries the response was YES. Maximal size of possible extension queue 3875. Compared 1631995 event pairs, 60688 based on Foata normal form. 25420/176316 useless extension candidates. Maximal degree in co-relation 21024. Up to 137592 conditions per place. [2023-08-25 04:10:38,561 INFO L140 encePairwiseOnDemand]: 399/431 looper letters, 73 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2023-08-25 04:10:38,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 150 transitions, 480 flow [2023-08-25 04:10:38,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2023-08-25 04:10:38,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6264501160092807 [2023-08-25 04:10:38,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2023-08-25 04:10:38,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2023-08-25 04:10:38,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:38,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2023-08-25 04:10:38,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 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 04:10:38,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 431.0) internal successors, (1724), 4 states have internal predecessors, (1724), 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 04:10:38,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 431.0) internal successors, (1724), 4 states have internal predecessors, (1724), 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 04:10:38,572 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 364 flow. Second operand 3 states and 810 transitions. [2023-08-25 04:10:38,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 150 transitions, 480 flow [2023-08-25 04:10:38,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:38,576 INFO L231 Difference]: Finished difference. Result has 141 places, 138 transitions, 316 flow [2023-08-25 04:10:38,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=431, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=141, PETRI_TRANSITIONS=138} [2023-08-25 04:10:38,577 INFO L281 CegarLoopForPetriNet]: 140 programPoint places, 1 predicate places. [2023-08-25 04:10:38,577 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 316 flow [2023-08-25 04:10:38,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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 04:10:38,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:38,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:10:38,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:10:38,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 04:10:38,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1751730699, now seen corresponding path program 1 times [2023-08-25 04:10:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526148849] [2023-08-25 04:10:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:38,608 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 04:10:38,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:38,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526148849] [2023-08-25 04:10:38,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526148849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:38,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:38,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:38,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636632641] [2023-08-25 04:10:38,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:38,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:38,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:38,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:38,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:38,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 431 [2023-08-25 04:10:38,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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 04:10:38,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:38,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 431 [2023-08-25 04:10:38,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand