/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_60-invariant_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:10:07,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:10:07,194 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 04:10:07,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:10:07,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:10:07,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:10:07,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:10:07,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:10:07,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:10:07,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:10:07,247 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:10:07,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:10:07,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:10:07,248 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:10:07,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:10:07,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:10:07,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:10:07,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:10:07,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:10:07,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:10:07,250 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:10:07,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:10:07,251 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:10:07,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:10:07,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:10:07,252 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:10:07,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:10:07,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:10:07,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:10:07,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:10:07,254 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:10:07,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:10:07,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:10:07,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:10:07,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:10:07,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:10:07,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:10:07,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:10:07,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:10:07,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:10:07,578 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:10:07,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_60-invariant_racefree.i [2023-08-25 04:10:08,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:10:09,081 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:10:09,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_60-invariant_racefree.i [2023-08-25 04:10:09,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c1955e7/b5536eaa958b405aa0ca9ef62eace2c5/FLAG540135158 [2023-08-25 04:10:09,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c1955e7/b5536eaa958b405aa0ca9ef62eace2c5 [2023-08-25 04:10:09,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:10:09,122 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:10:09,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:10:09,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:10:09,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:10:09,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31870e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09, skipping insertion in model container [2023-08-25 04:10:09,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,177 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:10:09,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:10:09,518 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:10:09,544 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:10:09,546 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 04:10:09,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:10:09,609 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:10:09,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09 WrapperNode [2023-08-25 04:10:09,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:10:09,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:10:09,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:10:09,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:10:09,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,663 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 184 [2023-08-25 04:10:09,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:10:09,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:10:09,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:10:09,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:10:09,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:10:09,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:10:09,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:10:09,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:10:09,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (1/1) ... [2023-08-25 04:10:09,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:10:09,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:10:09,771 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 04:10:09,775 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 04:10:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:10:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 04:10:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:10:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:10:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:10:09,801 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 04:10:09,911 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:10:09,913 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:10:10,143 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:10:10,150 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:10:10,150 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-08-25 04:10:10,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:10:10 BoogieIcfgContainer [2023-08-25 04:10:10,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:10:10,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:10:10,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:10:10,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:10:10,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:10:09" (1/3) ... [2023-08-25 04:10:10,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628354e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:10:10, skipping insertion in model container [2023-08-25 04:10:10,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:10:09" (2/3) ... [2023-08-25 04:10:10,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628354e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:10:10, skipping insertion in model container [2023-08-25 04:10:10,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:10:10" (3/3) ... [2023-08-25 04:10:10,166 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2023-08-25 04:10:10,182 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:10:10,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 04:10:10,182 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:10:10,291 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 04:10:10,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 195 transitions, 398 flow [2023-08-25 04:10:10,467 INFO L124 PetriNetUnfolderBase]: 36/281 cut-off events. [2023-08-25 04:10:10,467 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:10:10,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 281 events. 36/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1207 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 162. Up to 6 conditions per place. [2023-08-25 04:10:10,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 195 transitions, 398 flow [2023-08-25 04:10:10,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 195 transitions, 398 flow [2023-08-25 04:10:10,494 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:10:10,507 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 195 transitions, 398 flow [2023-08-25 04:10:10,511 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 195 transitions, 398 flow [2023-08-25 04:10:10,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 195 transitions, 398 flow [2023-08-25 04:10:10,575 INFO L124 PetriNetUnfolderBase]: 36/281 cut-off events. [2023-08-25 04:10:10,575 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:10:10,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 281 events. 36/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1207 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 162. Up to 6 conditions per place. [2023-08-25 04:10:10,589 INFO L119 LiptonReduction]: Number of co-enabled transitions 13064 [2023-08-25 04:10:13,643 INFO L134 LiptonReduction]: Checked pairs total: 48861 [2023-08-25 04:10:13,643 INFO L136 LiptonReduction]: Total number of compositions: 134 [2023-08-25 04:10:13,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:13,681 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;@665c2271, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:13,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-08-25 04:10:13,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:13,685 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2023-08-25 04:10:13,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:13,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:13,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:13,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-08-25 04:10:13,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash 689011295, now seen corresponding path program 1 times [2023-08-25 04:10:13,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:13,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603506536] [2023-08-25 04:10:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:13,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:13,879 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 04:10:13,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:13,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603506536] [2023-08-25 04:10:13,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603506536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:13,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:13,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:13,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656957196] [2023-08-25 04:10:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:13,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:13,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:13,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:13,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 329 [2023-08-25 04:10:13,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 100 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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 04:10:13,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:13,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 329 [2023-08-25 04:10:13,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:14,128 INFO L124 PetriNetUnfolderBase]: 289/877 cut-off events. [2023-08-25 04:10:14,128 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 04:10:14,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 877 events. 289/877 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5262 event pairs, 221 based on Foata normal form. 119/843 useless extension candidates. Maximal degree in co-relation 1454. Up to 581 conditions per place. [2023-08-25 04:10:14,134 INFO L140 encePairwiseOnDemand]: 306/329 looper letters, 51 selfloop transitions, 2 changer transitions 2/95 dead transitions. [2023-08-25 04:10:14,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 95 transitions, 308 flow [2023-08-25 04:10:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:14,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-08-25 04:10:14,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5754812563323202 [2023-08-25 04:10:14,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-08-25 04:10:14,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-08-25 04:10:14,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:14,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-08-25 04:10:14,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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 04:10:14,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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 04:10:14,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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 04:10:14,175 INFO L175 Difference]: Start difference. First operand has 82 places, 100 transitions, 208 flow. Second operand 3 states and 568 transitions. [2023-08-25 04:10:14,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 95 transitions, 308 flow [2023-08-25 04:10:14,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 95 transitions, 308 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:14,183 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 165 flow [2023-08-25 04:10:14,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2023-08-25 04:10:14,188 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2023-08-25 04:10:14,188 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 165 flow [2023-08-25 04:10:14,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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 04:10:14,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:14,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:10:14,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:10:14,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-08-25 04:10:14,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash -115989533, now seen corresponding path program 1 times [2023-08-25 04:10:14,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:14,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250689184] [2023-08-25 04:10:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:14,264 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 04:10:14,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:14,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250689184] [2023-08-25 04:10:14,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250689184] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:14,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:14,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:14,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184060983] [2023-08-25 04:10:14,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:14,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:14,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 329 [2023-08-25 04:10:14,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 04:10:14,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:14,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 329 [2023-08-25 04:10:14,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:14,597 INFO L124 PetriNetUnfolderBase]: 870/2166 cut-off events. [2023-08-25 04:10:14,598 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-08-25 04:10:14,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4094 conditions, 2166 events. 870/2166 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 13864 event pairs, 326 based on Foata normal form. 0/1759 useless extension candidates. Maximal degree in co-relation 4078. Up to 1070 conditions per place. [2023-08-25 04:10:14,609 INFO L140 encePairwiseOnDemand]: 304/329 looper letters, 89 selfloop transitions, 18 changer transitions 0/125 dead transitions. [2023-08-25 04:10:14,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 125 transitions, 482 flow [2023-08-25 04:10:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2023-08-25 04:10:14,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5288753799392097 [2023-08-25 04:10:14,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2023-08-25 04:10:14,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2023-08-25 04:10:14,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:14,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2023-08-25 04:10:14,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 04:10:14,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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 04:10:14,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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 04:10:14,616 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 165 flow. Second operand 3 states and 522 transitions. [2023-08-25 04:10:14,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 125 transitions, 482 flow [2023-08-25 04:10:14,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 125 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 04:10:14,620 INFO L231 Difference]: Finished difference. Result has 83 places, 94 transitions, 319 flow [2023-08-25 04:10:14,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=83, PETRI_TRANSITIONS=94} [2023-08-25 04:10:14,621 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2023-08-25 04:10:14,621 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 94 transitions, 319 flow [2023-08-25 04:10:14,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 04:10:14,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:14,621 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 04:10:14,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:10:14,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-08-25 04:10:14,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:14,622 INFO L85 PathProgramCache]: Analyzing trace with hash -115894544, now seen corresponding path program 1 times [2023-08-25 04:10:14,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:14,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977725628] [2023-08-25 04:10:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:14,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:10:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:14,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:10:14,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:10:14,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-08-25 04:10:14,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-08-25 04:10:14,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-08-25 04:10:14,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-08-25 04:10:14,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-08-25 04:10:14,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-08-25 04:10:14,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-08-25 04:10:14,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (14 of 22 remaining) [2023-08-25 04:10:14,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-08-25 04:10:14,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-08-25 04:10:14,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-08-25 04:10:14,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-08-25 04:10:14,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (9 of 22 remaining) [2023-08-25 04:10:14,694 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-08-25 04:10:14,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-08-25 04:10:14,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-08-25 04:10:14,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-08-25 04:10:14,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-08-25 04:10:14,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-08-25 04:10:14,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (2 of 22 remaining) [2023-08-25 04:10:14,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-08-25 04:10:14,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-08-25 04:10:14,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:10:14,696 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 04:10:14,699 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:10:14,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 04:10:14,741 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:10:14,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 268 transitions, 554 flow [2023-08-25 04:10:14,841 INFO L124 PetriNetUnfolderBase]: 62/471 cut-off events. [2023-08-25 04:10:14,841 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:10:14,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 471 events. 62/471 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2253 event pairs, 0 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 283. Up to 9 conditions per place. [2023-08-25 04:10:14,849 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 268 transitions, 554 flow [2023-08-25 04:10:14,855 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 268 transitions, 554 flow [2023-08-25 04:10:14,856 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:10:14,856 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 268 transitions, 554 flow [2023-08-25 04:10:14,857 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 268 transitions, 554 flow [2023-08-25 04:10:14,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 268 transitions, 554 flow [2023-08-25 04:10:14,933 INFO L124 PetriNetUnfolderBase]: 62/471 cut-off events. [2023-08-25 04:10:14,933 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 04:10:14,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 471 events. 62/471 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2253 event pairs, 0 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 283. Up to 9 conditions per place. [2023-08-25 04:10:14,972 INFO L119 LiptonReduction]: Number of co-enabled transitions 37772 [2023-08-25 04:10:17,789 INFO L134 LiptonReduction]: Checked pairs total: 151754 [2023-08-25 04:10:17,789 INFO L136 LiptonReduction]: Total number of compositions: 171 [2023-08-25 04:10:17,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:17,792 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;@665c2271, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:17,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-08-25 04:10:17,794 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:17,794 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2023-08-25 04:10:17,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:17,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:17,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:17,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 04:10:17,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:17,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1177211301, now seen corresponding path program 1 times [2023-08-25 04:10:17,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:17,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732748119] [2023-08-25 04:10:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:17,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:17,855 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 04:10:17,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:17,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732748119] [2023-08-25 04:10:17,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732748119] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:17,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:17,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:17,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433121180] [2023-08-25 04:10:17,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:17,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:17,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:17,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:17,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:17,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 439 [2023-08-25 04:10:17,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 151 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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 04:10:17,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:17,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 439 [2023-08-25 04:10:17,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:19,702 INFO L124 PetriNetUnfolderBase]: 10345/19948 cut-off events. [2023-08-25 04:10:19,702 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-08-25 04:10:19,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35883 conditions, 19948 events. 10345/19948 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 180667 event pairs, 9291 based on Foata normal form. 3563/20257 useless extension candidates. Maximal degree in co-relation 13538. Up to 15817 conditions per place. [2023-08-25 04:10:19,837 INFO L140 encePairwiseOnDemand]: 407/439 looper letters, 72 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2023-08-25 04:10:19,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 137 transitions, 440 flow [2023-08-25 04:10:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 777 transitions. [2023-08-25 04:10:19,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5899772209567198 [2023-08-25 04:10:19,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 777 transitions. [2023-08-25 04:10:19,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 777 transitions. [2023-08-25 04:10:19,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:19,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 777 transitions. [2023-08-25 04:10:19,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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 04:10:19,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 439.0) internal successors, (1756), 4 states have internal predecessors, (1756), 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 04:10:19,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 439.0) internal successors, (1756), 4 states have internal predecessors, (1756), 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 04:10:19,846 INFO L175 Difference]: Start difference. First operand has 124 places, 151 transitions, 320 flow. Second operand 3 states and 777 transitions. [2023-08-25 04:10:19,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 137 transitions, 440 flow [2023-08-25 04:10:19,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:10:19,851 INFO L231 Difference]: Finished difference. Result has 124 places, 121 transitions, 270 flow [2023-08-25 04:10:19,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=124, PETRI_TRANSITIONS=121} [2023-08-25 04:10:19,854 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, 0 predicate places. [2023-08-25 04:10:19,854 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 121 transitions, 270 flow [2023-08-25 04:10:19,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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 04:10:19,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:19,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:10:19,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:10:19,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 04:10:19,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:19,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2143802966, now seen corresponding path program 1 times [2023-08-25 04:10:19,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:19,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346087619] [2023-08-25 04:10:19,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:19,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:19,912 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 04:10:19,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:19,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346087619] [2023-08-25 04:10:19,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346087619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:19,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:19,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:19,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917483253] [2023-08-25 04:10:19,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:19,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:19,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:19,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:19,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 439 [2023-08-25 04:10:19,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 121 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 04:10:19,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:19,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 439 [2023-08-25 04:10:19,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:10:27,055 INFO L124 PetriNetUnfolderBase]: 65427/112160 cut-off events. [2023-08-25 04:10:27,055 INFO L125 PetriNetUnfolderBase]: For 2182/2182 co-relation queries the response was YES. [2023-08-25 04:10:27,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216783 conditions, 112160 events. 65427/112160 cut-off events. For 2182/2182 co-relation queries the response was YES. Maximal size of possible extension queue 2137. Compared 1031081 event pairs, 25767 based on Foata normal form. 0/89412 useless extension candidates. Maximal degree in co-relation 216610. Up to 60818 conditions per place. [2023-08-25 04:10:27,746 INFO L140 encePairwiseOnDemand]: 400/439 looper letters, 145 selfloop transitions, 28 changer transitions 0/201 dead transitions. [2023-08-25 04:10:27,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 201 transitions, 794 flow [2023-08-25 04:10:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:10:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:10:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 716 transitions. [2023-08-25 04:10:27,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5436598329536826 [2023-08-25 04:10:27,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 716 transitions. [2023-08-25 04:10:27,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 716 transitions. [2023-08-25 04:10:27,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:10:27,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 716 transitions. [2023-08-25 04:10:27,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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 04:10:27,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 439.0) internal successors, (1756), 4 states have internal predecessors, (1756), 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 04:10:27,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 439.0) internal successors, (1756), 4 states have internal predecessors, (1756), 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 04:10:27,755 INFO L175 Difference]: Start difference. First operand has 124 places, 121 transitions, 270 flow. Second operand 3 states and 716 transitions. [2023-08-25 04:10:27,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 201 transitions, 794 flow [2023-08-25 04:10:27,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 201 transitions, 791 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:10:27,766 INFO L231 Difference]: Finished difference. Result has 127 places, 149 transitions, 514 flow [2023-08-25 04:10:27,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=127, PETRI_TRANSITIONS=149} [2023-08-25 04:10:27,768 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, 3 predicate places. [2023-08-25 04:10:27,768 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 149 transitions, 514 flow [2023-08-25 04:10:27,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 04:10:27,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:27,769 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 04:10:27,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:10:27,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 04:10:27,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash 984852309, now seen corresponding path program 1 times [2023-08-25 04:10:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:27,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952185909] [2023-08-25 04:10:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:27,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 04:10:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 04:10:27,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 04:10:27,832 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 04:10:27,833 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2023-08-25 04:10:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-08-25 04:10:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-08-25 04:10:27,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-08-25 04:10:27,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-08-25 04:10:27,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (21 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (16 of 29 remaining) [2023-08-25 04:10:27,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-08-25 04:10:27,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-08-25 04:10:27,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-08-25 04:10:27,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-08-25 04:10:27,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2023-08-25 04:10:27,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2023-08-25 04:10:27,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (9 of 29 remaining) [2023-08-25 04:10:27,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-08-25 04:10:27,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-08-25 04:10:27,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-08-25 04:10:27,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-08-25 04:10:27,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-08-25 04:10:27,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-08-25 04:10:27,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (2 of 29 remaining) [2023-08-25 04:10:27,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-08-25 04:10:27,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-08-25 04:10:27,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:10:27,842 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 04:10:27,842 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 04:10:27,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 04:10:27,881 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:10:27,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 341 transitions, 712 flow [2023-08-25 04:10:27,975 INFO L124 PetriNetUnfolderBase]: 93/706 cut-off events. [2023-08-25 04:10:27,975 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:10:27,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 706 events. 93/706 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3503 event pairs, 1 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 479. Up to 16 conditions per place. [2023-08-25 04:10:27,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 341 transitions, 712 flow [2023-08-25 04:10:27,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 341 transitions, 712 flow [2023-08-25 04:10:27,994 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:10:27,994 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 300 places, 341 transitions, 712 flow [2023-08-25 04:10:27,995 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 300 places, 341 transitions, 712 flow [2023-08-25 04:10:27,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 341 transitions, 712 flow [2023-08-25 04:10:28,094 INFO L124 PetriNetUnfolderBase]: 93/706 cut-off events. [2023-08-25 04:10:28,094 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 04:10:28,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 706 events. 93/706 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3503 event pairs, 1 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 479. Up to 16 conditions per place. [2023-08-25 04:10:28,239 INFO L119 LiptonReduction]: Number of co-enabled transitions 72420 [2023-08-25 04:10:31,222 INFO L134 LiptonReduction]: Checked pairs total: 311010 [2023-08-25 04:10:31,222 INFO L136 LiptonReduction]: Total number of compositions: 213 [2023-08-25 04:10:31,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:10:31,226 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;@665c2271, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:10:31,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-25 04:10:31,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:10:31,228 INFO L124 PetriNetUnfolderBase]: 2/20 cut-off events. [2023-08-25 04:10:31,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:10:31,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:10:31,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 04:10:31,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 04:10:31,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:10:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1775121453, now seen corresponding path program 1 times [2023-08-25 04:10:31,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:10:31,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514837263] [2023-08-25 04:10:31,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:10:31,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:10:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:10:31,271 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 04:10:31,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:10:31,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514837263] [2023-08-25 04:10:31,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514837263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:10:31,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:10:31,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:10:31,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112257904] [2023-08-25 04:10:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:10:31,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:10:31,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:10:31,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:10:31,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:10:31,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 554 [2023-08-25 04:10:31,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 202 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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 04:10:31,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:10:31,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 554 [2023-08-25 04:10:31,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:11:00,284 INFO L124 PetriNetUnfolderBase]: 243529/394638 cut-off events. [2023-08-25 04:11:00,284 INFO L125 PetriNetUnfolderBase]: For 2744/2744 co-relation queries the response was YES. [2023-08-25 04:11:01,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725421 conditions, 394638 events. 243529/394638 cut-off events. For 2744/2744 co-relation queries the response was YES. Maximal size of possible extension queue 9450. Compared 4205680 event pairs, 222124 based on Foata normal form. 70981/406207 useless extension candidates. Maximal degree in co-relation 109522. Up to 328618 conditions per place. [2023-08-25 04:11:03,162 INFO L140 encePairwiseOnDemand]: 512/554 looper letters, 89 selfloop transitions, 2 changer transitions 0/176 dead transitions. [2023-08-25 04:11:03,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 176 transitions, 564 flow [2023-08-25 04:11:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:11:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:11:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 984 transitions. [2023-08-25 04:11:03,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.592057761732852 [2023-08-25 04:11:03,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 984 transitions. [2023-08-25 04:11:03,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 984 transitions. [2023-08-25 04:11:03,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:11:03,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 984 transitions. [2023-08-25 04:11:03,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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 04:11:03,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 04:11:03,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 554.0) internal successors, (2216), 4 states have internal predecessors, (2216), 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 04:11:03,173 INFO L175 Difference]: Start difference. First operand has 165 places, 202 transitions, 434 flow. Second operand 3 states and 984 transitions. [2023-08-25 04:11:03,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 176 transitions, 564 flow [2023-08-25 04:11:03,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 176 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:11:03,179 INFO L231 Difference]: Finished difference. Result has 163 places, 160 transitions, 360 flow [2023-08-25 04:11:03,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=554, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2023-08-25 04:11:03,179 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -2 predicate places. [2023-08-25 04:11:03,180 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 360 flow [2023-08-25 04:11:03,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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 04:11:03,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:11:03,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:11:03,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:11:03,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-25 04:11:03,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:11:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash -785407686, now seen corresponding path program 1 times [2023-08-25 04:11:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:11:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043852012] [2023-08-25 04:11:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:11:03,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:11:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:11:03,200 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 04:11:03,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:11:03,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043852012] [2023-08-25 04:11:03,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043852012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:11:03,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:11:03,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:11:03,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067464984] [2023-08-25 04:11:03,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:11:03,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:11:03,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:11:03,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:11:03,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:11:03,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 554 [2023-08-25 04:11:03,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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 04:11:03,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:11:03,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 554 [2023-08-25 04:11:03,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand