/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 22:02:04,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 22:02:04,219 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 22:02:04,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 22:02:04,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 22:02:04,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 22:02:04,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 22:02:04,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 22:02:04,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 22:02:04,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 22:02:04,261 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 22:02:04,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 22:02:04,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 22:02:04,263 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 22:02:04,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 22:02:04,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 22:02:04,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 22:02:04,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 22:02:04,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 22:02:04,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 22:02:04,265 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 22:02:04,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 22:02:04,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 22:02:04,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 22:02:04,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 22:02:04,266 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 22:02:04,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 22:02:04,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:02:04,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 22:02:04,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 22:02:04,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 22:02:04,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 22:02:04,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 22:02:04,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 22:02:04,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 22:02:04,270 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 22:02:04,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 22:02:04,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 22:02:04,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 22:02:04,600 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 22:02:04,600 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 22:02:04,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski-b.i [2023-08-25 22:02:05,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 22:02:06,003 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 22:02:06,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski-b.i [2023-08-25 22:02:06,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0368bfd/083a9c385178447d850856ea515e5f94/FLAG85f1dbfaf [2023-08-25 22:02:06,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c0368bfd/083a9c385178447d850856ea515e5f94 [2023-08-25 22:02:06,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 22:02:06,058 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 22:02:06,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 22:02:06,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 22:02:06,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 22:02:06,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc10be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06, skipping insertion in model container [2023-08-25 22:02:06,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,110 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 22:02:06,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:02:06,449 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 22:02:06,473 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 22:02:06,474 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 22:02:06,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:02:06,522 INFO L206 MainTranslator]: Completed translation [2023-08-25 22:02:06,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06 WrapperNode [2023-08-25 22:02:06,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 22:02:06,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 22:02:06,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 22:02:06,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 22:02:06,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,565 INFO L138 Inliner]: procedures = 167, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 204 [2023-08-25 22:02:06,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 22:02:06,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 22:02:06,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 22:02:06,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 22:02:06,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 22:02:06,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 22:02:06,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 22:02:06,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 22:02:06,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (1/1) ... [2023-08-25 22:02:06,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:02:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:02:06,624 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 22:02:06,639 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 22:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 22:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-25 22:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-25 22:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 22:02:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 22:02:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 22:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 22:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 22:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 22:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 22:02:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 22:02:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 22:02:06,667 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 22:02:06,775 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 22:02:06,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 22:02:07,011 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 22:02:07,019 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 22:02:07,019 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-25 22:02:07,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:02:07 BoogieIcfgContainer [2023-08-25 22:02:07,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 22:02:07,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 22:02:07,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 22:02:07,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 22:02:07,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:02:06" (1/3) ... [2023-08-25 22:02:07,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a34654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:02:07, skipping insertion in model container [2023-08-25 22:02:07,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:06" (2/3) ... [2023-08-25 22:02:07,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a34654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:02:07, skipping insertion in model container [2023-08-25 22:02:07,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:02:07" (3/3) ... [2023-08-25 22:02:07,029 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2023-08-25 22:02:07,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 22:02:07,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-08-25 22:02:07,045 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 22:02:07,183 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 22:02:07,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 231 transitions, 478 flow [2023-08-25 22:02:07,346 INFO L124 PetriNetUnfolderBase]: 24/229 cut-off events. [2023-08-25 22:02:07,346 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 22:02:07,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 229 events. 24/229 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 560 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 197. Up to 3 conditions per place. [2023-08-25 22:02:07,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 231 transitions, 478 flow [2023-08-25 22:02:07,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 220 transitions, 449 flow [2023-08-25 22:02:07,376 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:02:07,388 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 220 transitions, 449 flow [2023-08-25 22:02:07,391 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 220 transitions, 449 flow [2023-08-25 22:02:07,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 220 transitions, 449 flow [2023-08-25 22:02:07,459 INFO L124 PetriNetUnfolderBase]: 24/220 cut-off events. [2023-08-25 22:02:07,459 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 22:02:07,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 220 events. 24/220 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 559 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 197. Up to 3 conditions per place. [2023-08-25 22:02:07,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 21716 [2023-08-25 22:02:09,521 INFO L134 LiptonReduction]: Checked pairs total: 110196 [2023-08-25 22:02:09,521 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-08-25 22:02:09,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:02:09,538 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;@66f52794, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:02:09,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-25 22:02:09,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:02:09,541 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 22:02:09,541 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:02:09,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:09,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 22:02:09,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 22:02:09,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash 840310744, now seen corresponding path program 1 times [2023-08-25 22:02:09,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:09,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900318014] [2023-08-25 22:02:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:09,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:09,711 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 22:02:09,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:09,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900318014] [2023-08-25 22:02:09,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900318014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:09,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:09,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:09,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511260817] [2023-08-25 22:02:09,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:09,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:09,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:09,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 339 [2023-08-25 22:02:09,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 136 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 22:02:09,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:09,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 339 [2023-08-25 22:02:09,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:10,460 INFO L124 PetriNetUnfolderBase]: 3192/6450 cut-off events. [2023-08-25 22:02:10,461 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-08-25 22:02:10,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11387 conditions, 6450 events. 3192/6450 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 43776 event pairs, 2528 based on Foata normal form. 288/5244 useless extension candidates. Maximal degree in co-relation 11058. Up to 4682 conditions per place. [2023-08-25 22:02:10,506 INFO L140 encePairwiseOnDemand]: 319/339 looper letters, 98 selfloop transitions, 8 changer transitions 0/164 dead transitions. [2023-08-25 22:02:10,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 164 transitions, 552 flow [2023-08-25 22:02:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:10,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2023-08-25 22:02:10,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6470009832841691 [2023-08-25 22:02:10,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2023-08-25 22:02:10,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2023-08-25 22:02:10,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:10,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2023-08-25 22:02:10,528 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 22:02:10,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:10,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:10,534 INFO L175 Difference]: Start difference. First operand has 122 places, 136 transitions, 281 flow. Second operand 3 states and 658 transitions. [2023-08-25 22:02:10,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 164 transitions, 552 flow [2023-08-25 22:02:10,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 164 transitions, 546 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 22:02:10,543 INFO L231 Difference]: Finished difference. Result has 120 places, 132 transitions, 308 flow [2023-08-25 22:02:10,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=120, PETRI_TRANSITIONS=132} [2023-08-25 22:02:10,548 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -2 predicate places. [2023-08-25 22:02:10,548 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 132 transitions, 308 flow [2023-08-25 22:02:10,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 22:02:10,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:10,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:10,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 22:02:10,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 22:02:10,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash 118012290, now seen corresponding path program 1 times [2023-08-25 22:02:10,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:10,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956561352] [2023-08-25 22:02:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:10,598 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 22:02:10,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956561352] [2023-08-25 22:02:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956561352] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589002750] [2023-08-25 22:02:10,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:10,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:10,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:10,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:10,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 339 [2023-08-25 22:02:10,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 132 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 22:02:10,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:10,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 339 [2023-08-25 22:02:10,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:11,266 INFO L124 PetriNetUnfolderBase]: 3198/6483 cut-off events. [2023-08-25 22:02:11,267 INFO L125 PetriNetUnfolderBase]: For 319/389 co-relation queries the response was YES. [2023-08-25 22:02:11,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11825 conditions, 6483 events. 3198/6483 cut-off events. For 319/389 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 44488 event pairs, 2453 based on Foata normal form. 0/4935 useless extension candidates. Maximal degree in co-relation 11102. Up to 4631 conditions per place. [2023-08-25 22:02:11,313 INFO L140 encePairwiseOnDemand]: 330/339 looper letters, 99 selfloop transitions, 8 changer transitions 0/171 dead transitions. [2023-08-25 22:02:11,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 171 transitions, 607 flow [2023-08-25 22:02:11,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-08-25 22:02:11,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6293018682399213 [2023-08-25 22:02:11,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-08-25 22:02:11,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-08-25 22:02:11,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:11,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-08-25 22:02:11,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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 22:02:11,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:11,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:11,321 INFO L175 Difference]: Start difference. First operand has 120 places, 132 transitions, 308 flow. Second operand 3 states and 640 transitions. [2023-08-25 22:02:11,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 171 transitions, 607 flow [2023-08-25 22:02:11,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 171 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:02:11,327 INFO L231 Difference]: Finished difference. Result has 122 places, 139 transitions, 354 flow [2023-08-25 22:02:11,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=122, PETRI_TRANSITIONS=139} [2023-08-25 22:02:11,328 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2023-08-25 22:02:11,328 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 139 transitions, 354 flow [2023-08-25 22:02:11,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 22:02:11,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:11,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:11,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 22:02:11,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 22:02:11,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 84935725, now seen corresponding path program 1 times [2023-08-25 22:02:11,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:11,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098381178] [2023-08-25 22:02:11,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:11,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:11,368 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 22:02:11,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:11,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098381178] [2023-08-25 22:02:11,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098381178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:11,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:11,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:11,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341774105] [2023-08-25 22:02:11,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:11,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:11,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:11,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:11,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:11,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 339 [2023-08-25 22:02:11,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 139 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 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 22:02:11,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:11,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 339 [2023-08-25 22:02:11,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:12,330 INFO L124 PetriNetUnfolderBase]: 4959/10764 cut-off events. [2023-08-25 22:02:12,331 INFO L125 PetriNetUnfolderBase]: For 942/1042 co-relation queries the response was YES. [2023-08-25 22:02:12,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19834 conditions, 10764 events. 4959/10764 cut-off events. For 942/1042 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 86010 event pairs, 1154 based on Foata normal form. 8/8344 useless extension candidates. Maximal degree in co-relation 19148. Up to 3704 conditions per place. [2023-08-25 22:02:12,394 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 112 selfloop transitions, 23 changer transitions 0/199 dead transitions. [2023-08-25 22:02:12,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 199 transitions, 785 flow [2023-08-25 22:02:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2023-08-25 22:02:12,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6548672566371682 [2023-08-25 22:02:12,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 666 transitions. [2023-08-25 22:02:12,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 666 transitions. [2023-08-25 22:02:12,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:12,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 666 transitions. [2023-08-25 22:02:12,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 22:02:12,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:12,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:12,402 INFO L175 Difference]: Start difference. First operand has 122 places, 139 transitions, 354 flow. Second operand 3 states and 666 transitions. [2023-08-25 22:02:12,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 199 transitions, 785 flow [2023-08-25 22:02:12,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 199 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:02:12,414 INFO L231 Difference]: Finished difference. Result has 125 places, 162 transitions, 568 flow [2023-08-25 22:02:12,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=125, PETRI_TRANSITIONS=162} [2023-08-25 22:02:12,416 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2023-08-25 22:02:12,416 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 162 transitions, 568 flow [2023-08-25 22:02:12,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 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 22:02:12,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:12,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:12,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 22:02:12,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 22:02:12,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:12,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1740914713, now seen corresponding path program 1 times [2023-08-25 22:02:12,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:12,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34099629] [2023-08-25 22:02:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:12,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:12,480 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 22:02:12,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:12,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34099629] [2023-08-25 22:02:12,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34099629] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:12,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:12,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:12,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374989058] [2023-08-25 22:02:12,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:12,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:12,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:12,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:12,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:12,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 339 [2023-08-25 22:02:12,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 162 transitions, 568 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 22:02:12,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:12,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 339 [2023-08-25 22:02:12,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:14,004 INFO L124 PetriNetUnfolderBase]: 9451/19423 cut-off events. [2023-08-25 22:02:14,004 INFO L125 PetriNetUnfolderBase]: For 5655/5860 co-relation queries the response was YES. [2023-08-25 22:02:14,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40394 conditions, 19423 events. 9451/19423 cut-off events. For 5655/5860 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 163760 event pairs, 2365 based on Foata normal form. 97/15948 useless extension candidates. Maximal degree in co-relation 39674. Up to 7588 conditions per place. [2023-08-25 22:02:14,179 INFO L140 encePairwiseOnDemand]: 316/339 looper letters, 128 selfloop transitions, 23 changer transitions 0/228 dead transitions. [2023-08-25 22:02:14,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 228 transitions, 1075 flow [2023-08-25 22:02:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:14,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 667 transitions. [2023-08-25 22:02:14,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.655850540806293 [2023-08-25 22:02:14,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 667 transitions. [2023-08-25 22:02:14,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 667 transitions. [2023-08-25 22:02:14,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:14,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 667 transitions. [2023-08-25 22:02:14,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 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 22:02:14,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:14,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 339.0) internal successors, (1356), 4 states have internal predecessors, (1356), 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 22:02:14,188 INFO L175 Difference]: Start difference. First operand has 125 places, 162 transitions, 568 flow. Second operand 3 states and 667 transitions. [2023-08-25 22:02:14,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 228 transitions, 1075 flow [2023-08-25 22:02:14,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 228 transitions, 1017 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:02:14,204 INFO L231 Difference]: Finished difference. Result has 127 places, 185 transitions, 744 flow [2023-08-25 22:02:14,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=339, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=127, PETRI_TRANSITIONS=185} [2023-08-25 22:02:14,205 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2023-08-25 22:02:14,206 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 185 transitions, 744 flow [2023-08-25 22:02:14,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 22:02:14,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:14,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:14,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 22:02:14,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-25 22:02:14,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:14,207 INFO L85 PathProgramCache]: Analyzing trace with hash -704817491, now seen corresponding path program 1 times [2023-08-25 22:02:14,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097374217] [2023-08-25 22:02:14,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:02:14,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 22:02:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 22:02:14,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 22:02:14,249 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 22:02:14,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-08-25 22:02:14,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-08-25 22:02:14,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-08-25 22:02:14,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-08-25 22:02:14,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-08-25 22:02:14,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-08-25 22:02:14,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-08-25 22:02:14,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-08-25 22:02:14,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-08-25 22:02:14,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-08-25 22:02:14,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-08-25 22:02:14,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-08-25 22:02:14,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONASSERT (47 of 60 remaining) [2023-08-25 22:02:14,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-08-25 22:02:14,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-08-25 22:02:14,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-08-25 22:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-08-25 22:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-08-25 22:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-08-25 22:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-08-25 22:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-08-25 22:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-08-25 22:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-08-25 22:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-08-25 22:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-08-25 22:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-08-25 22:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONASSERT (33 of 60 remaining) [2023-08-25 22:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-08-25 22:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-08-25 22:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-08-25 22:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-08-25 22:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 60 remaining) [2023-08-25 22:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 60 remaining) [2023-08-25 22:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-08-25 22:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-08-25 22:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-08-25 22:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2023-08-25 22:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2023-08-25 22:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-08-25 22:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-08-25 22:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-08-25 22:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-08-25 22:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-08-25 22:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONASSERT (16 of 60 remaining) [2023-08-25 22:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-08-25 22:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-08-25 22:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-08-25 22:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-08-25 22:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-08-25 22:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-08-25 22:02:14,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-08-25 22:02:14,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-08-25 22:02:14,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-08-25 22:02:14,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-08-25 22:02:14,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-08-25 22:02:14,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-08-25 22:02:14,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-08-25 22:02:14,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONASSERT (2 of 60 remaining) [2023-08-25 22:02:14,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-08-25 22:02:14,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-08-25 22:02:14,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 22:02:14,263 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 22:02:14,268 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 22:02:14,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 22:02:14,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:02:14 BasicIcfg [2023-08-25 22:02:14,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 22:02:14,291 INFO L158 Benchmark]: Toolchain (without parser) took 8233.29ms. Allocated memory was 377.5MB in the beginning and 1.3GB in the end (delta: 874.5MB). Free memory was 352.1MB in the beginning and 738.5MB in the end (delta: -386.4MB). Peak memory consumption was 489.9MB. Max. memory is 16.0GB. [2023-08-25 22:02:14,292 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 377.5MB. Free memory was 354.3MB in the beginning and 354.2MB in the end (delta: 170.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:02:14,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.80ms. Allocated memory is still 377.5MB. Free memory was 352.1MB in the beginning and 332.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 22:02:14,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.28ms. Allocated memory is still 377.5MB. Free memory was 332.5MB in the beginning and 329.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:02:14,293 INFO L158 Benchmark]: Boogie Preprocessor took 29.05ms. Allocated memory is still 377.5MB. Free memory was 329.8MB in the beginning and 328.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:02:14,293 INFO L158 Benchmark]: RCFGBuilder took 426.09ms. Allocated memory is still 377.5MB. Free memory was 328.2MB in the beginning and 308.1MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 22:02:14,294 INFO L158 Benchmark]: TraceAbstraction took 7267.09ms. Allocated memory was 377.5MB in the beginning and 1.3GB in the end (delta: 874.5MB). Free memory was 307.3MB in the beginning and 738.5MB in the end (delta: -431.2MB). Peak memory consumption was 445.9MB. Max. memory is 16.0GB. [2023-08-25 22:02:14,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 377.5MB. Free memory was 354.3MB in the beginning and 354.2MB in the end (delta: 170.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 463.80ms. Allocated memory is still 377.5MB. Free memory was 352.1MB in the beginning and 332.5MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.28ms. Allocated memory is still 377.5MB. Free memory was 332.5MB in the beginning and 329.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.05ms. Allocated memory is still 377.5MB. Free memory was 329.8MB in the beginning and 328.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 426.09ms. Allocated memory is still 377.5MB. Free memory was 328.2MB in the beginning and 308.1MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 7267.09ms. Allocated memory was 377.5MB in the beginning and 1.3GB in the end (delta: 874.5MB). Free memory was 307.3MB in the beginning and 738.5MB in the end (delta: -431.2MB). Peak memory consumption was 445.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 203 PlacesBefore, 122 PlacesAfterwards, 220 TransitionsBefore, 136 TransitionsAfterwards, 21716 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 108 TotalNumberOfCompositions, 110196 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20976, independent: 19651, independent conditional: 0, independent unconditional: 19651, dependent: 1325, dependent conditional: 0, dependent unconditional: 1325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9073, independent: 8875, independent conditional: 0, independent unconditional: 8875, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20976, independent: 10776, independent conditional: 0, independent unconditional: 10776, dependent: 1127, dependent conditional: 0, dependent unconditional: 1127, unknown: 9073, unknown conditional: 0, unknown unconditional: 9073] , Statistics on independence cache: Total cache size (in pairs): 1327, Positive cache size: 1195, Positive conditional cache size: 0, Positive unconditional cache size: 1195, Negative cache size: 132, Negative conditional cache size: 0, Negative unconditional cache size: 132, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 703]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int x; [L719] 0 pthread_t t1, t2; [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=0, t1={3:0}, t2={5:0}, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=1, t1={3:0}, t2={5:0}, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 >= 3 [688] and C: flag2 = 1 [703] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 366 locations, 60 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 569 IncrementalHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 88 mSDtfsCounter, 569 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=744occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 22:02:14,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...