./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:27:31,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:27:31,119 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:27:31,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:27:31,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:27:31,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:27:31,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:27:31,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:27:31,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:27:31,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:27:31,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:27:31,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:27:31,163 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:27:31,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:27:31,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:27:31,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:27:31,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:27:31,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:27:31,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:27:31,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:27:31,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:27:31,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:27:31,167 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:27:31,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:27:31,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:27:31,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:27:31,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:27:31,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:27:31,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:27:31,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:27:31,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:27:31,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:27:31,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:27:31,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:27:31,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:27:31,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:27:31,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:27:31,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:27:31,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:27:31,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:27:31,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:27:31,182 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2024-10-24 15:27:31,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:27:31,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:27:31,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:27:31,461 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:27:31,461 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:27:31,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-10-24 15:27:32,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:27:33,178 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:27:33,179 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-10-24 15:27:33,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13f69f19d/b0b6f66dac2b48eb8f8f926e8f2bb7cf/FLAG1263234ea [2024-10-24 15:27:33,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13f69f19d/b0b6f66dac2b48eb8f8f926e8f2bb7cf [2024-10-24 15:27:33,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:27:33,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:27:33,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:27:33,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:27:33,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:27:33,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:27:33" (1/1) ... [2024-10-24 15:27:33,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a85ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:33, skipping insertion in model container [2024-10-24 15:27:33,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:27:33" (1/1) ... [2024-10-24 15:27:33,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:27:33,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:27:33,968 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:27:34,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:27:34,069 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:27:34,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34 WrapperNode [2024-10-24 15:27:34,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:27:34,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:27:34,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:27:34,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:27:34,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,127 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 108 [2024-10-24 15:27:34,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:27:34,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:27:34,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:27:34,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:27:34,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:27:34,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:27:34,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:27:34,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:27:34,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (1/1) ... [2024-10-24 15:27:34,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:27:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:27:34,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:27:34,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:27:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:27:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:27:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:27:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:27:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:27:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:27:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:27:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:27:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:27:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:27:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:27:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:27:34,295 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:27:34,461 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:27:34,464 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:27:34,836 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:27:34,836 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:27:34,875 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:27:34,875 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-24 15:27:34,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:27:34 BoogieIcfgContainer [2024-10-24 15:27:34,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:27:34,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:27:34,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:27:34,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:27:34,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:27:33" (1/3) ... [2024-10-24 15:27:34,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275e40bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:27:34, skipping insertion in model container [2024-10-24 15:27:34,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:27:34" (2/3) ... [2024-10-24 15:27:34,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275e40bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:27:34, skipping insertion in model container [2024-10-24 15:27:34,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:27:34" (3/3) ... [2024-10-24 15:27:34,886 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2024-10-24 15:27:34,902 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:27:34,903 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-10-24 15:27:34,903 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:27:34,993 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:27:35,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 377 flow [2024-10-24 15:27:35,211 INFO L124 PetriNetUnfolderBase]: 19/248 cut-off events. [2024-10-24 15:27:35,212 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:27:35,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 248 events. 19/248 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 750 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2024-10-24 15:27:35,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 185 transitions, 377 flow [2024-10-24 15:27:35,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 185 transitions, 377 flow [2024-10-24 15:27:35,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:27:35,253 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5b577f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:27:35,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-24 15:27:35,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:27:35,265 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-24 15:27:35,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:27:35,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:35,266 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:35,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:35,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash -519905131, now seen corresponding path program 1 times [2024-10-24 15:27:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:35,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470974188] [2024-10-24 15:27:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:35,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:35,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470974188] [2024-10-24 15:27:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470974188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:35,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:35,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:35,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880327732] [2024-10-24 15:27:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:35,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:35,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:35,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:35,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-24 15:27:35,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 185 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-10-24 15:27:35,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:35,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-24 15:27:35,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:35,719 INFO L124 PetriNetUnfolderBase]: 25/497 cut-off events. [2024-10-24 15:27:35,720 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:27:35,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 497 events. 25/497 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1943 event pairs, 24 based on Foata normal form. 54/500 useless extension candidates. Maximal degree in co-relation 451. Up to 69 conditions per place. [2024-10-24 15:27:35,725 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2024-10-24 15:27:35,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 383 flow [2024-10-24 15:27:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:35,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-10-24 15:27:35,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-10-24 15:27:35,744 INFO L175 Difference]: Start difference. First operand has 175 places, 185 transitions, 377 flow. Second operand 3 states and 490 transitions. [2024-10-24 15:27:35,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 383 flow [2024-10-24 15:27:35,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 170 transitions, 383 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:27:35,753 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 351 flow [2024-10-24 15:27:35,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2024-10-24 15:27:35,759 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, -1 predicate places. [2024-10-24 15:27:35,762 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 351 flow [2024-10-24 15:27:35,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-10-24 15:27:35,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:35,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:35,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:27:35,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:35,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:35,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1412609993, now seen corresponding path program 1 times [2024-10-24 15:27:35,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:35,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829182210] [2024-10-24 15:27:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:35,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:35,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829182210] [2024-10-24 15:27:35,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829182210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:35,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:35,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:35,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856388688] [2024-10-24 15:27:35,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:35,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:35,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:35,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:35,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 185 [2024-10-24 15:27:35,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) [2024-10-24 15:27:35,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:35,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 185 [2024-10-24 15:27:35,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:35,992 INFO L124 PetriNetUnfolderBase]: 25/494 cut-off events. [2024-10-24 15:27:35,992 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:27:35,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 494 events. 25/494 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1936 event pairs, 24 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 530. Up to 66 conditions per place. [2024-10-24 15:27:35,998 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 14 selfloop transitions, 1 changer transitions 0/168 dead transitions. [2024-10-24 15:27:35,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 168 transitions, 377 flow [2024-10-24 15:27:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:36,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:36,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2024-10-24 15:27:36,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8684684684684685 [2024-10-24 15:27:36,003 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 351 flow. Second operand 3 states and 482 transitions. [2024-10-24 15:27:36,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 168 transitions, 377 flow [2024-10-24 15:27:36,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 168 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:27:36,008 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 345 flow [2024-10-24 15:27:36,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2024-10-24 15:27:36,009 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, -3 predicate places. [2024-10-24 15:27:36,009 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 345 flow [2024-10-24 15:27:36,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) [2024-10-24 15:27:36,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:36,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:36,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:27:36,011 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:36,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash -138604748, now seen corresponding path program 1 times [2024-10-24 15:27:36,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:36,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602091115] [2024-10-24 15:27:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:36,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:36,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:36,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602091115] [2024-10-24 15:27:36,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602091115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:36,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:36,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:36,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039648896] [2024-10-24 15:27:36,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:36,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:36,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:36,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:36,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-10-24 15:27:36,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-10-24 15:27:36,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:36,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-10-24 15:27:36,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:36,241 INFO L124 PetriNetUnfolderBase]: 25/431 cut-off events. [2024-10-24 15:27:36,242 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:27:36,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 431 events. 25/431 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1623 event pairs, 24 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 470. Up to 68 conditions per place. [2024-10-24 15:27:36,246 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2024-10-24 15:27:36,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 167 transitions, 379 flow [2024-10-24 15:27:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2024-10-24 15:27:36,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8612612612612612 [2024-10-24 15:27:36,250 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 345 flow. Second operand 3 states and 478 transitions. [2024-10-24 15:27:36,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 167 transitions, 379 flow [2024-10-24 15:27:36,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 167 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:27:36,255 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 346 flow [2024-10-24 15:27:36,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2024-10-24 15:27:36,259 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, -3 predicate places. [2024-10-24 15:27:36,259 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 346 flow [2024-10-24 15:27:36,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-10-24 15:27:36,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:36,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:36,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:27:36,261 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:36,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash 798048297, now seen corresponding path program 1 times [2024-10-24 15:27:36,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:36,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639687843] [2024-10-24 15:27:36,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:36,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:36,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:36,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639687843] [2024-10-24 15:27:36,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639687843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:36,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:36,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:27:36,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410724865] [2024-10-24 15:27:36,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:36,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:27:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:27:36,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:27:37,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 185 [2024-10-24 15:27:37,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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) [2024-10-24 15:27:37,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:37,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 185 [2024-10-24 15:27:37,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:37,574 INFO L124 PetriNetUnfolderBase]: 535/2115 cut-off events. [2024-10-24 15:27:37,575 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 15:27:37,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3285 conditions, 2115 events. 535/2115 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14624 event pairs, 303 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 3247. Up to 988 conditions per place. [2024-10-24 15:27:37,587 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 71 selfloop transitions, 70 changer transitions 0/260 dead transitions. [2024-10-24 15:27:37,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 260 transitions, 814 flow [2024-10-24 15:27:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:27:37,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:27:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 886 transitions. [2024-10-24 15:27:37,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7981981981981981 [2024-10-24 15:27:37,591 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 346 flow. Second operand 6 states and 886 transitions. [2024-10-24 15:27:37,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 260 transitions, 814 flow [2024-10-24 15:27:37,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 260 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:27:37,600 INFO L231 Difference]: Finished difference. Result has 180 places, 236 transitions, 804 flow [2024-10-24 15:27:37,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=180, PETRI_TRANSITIONS=236} [2024-10-24 15:27:37,601 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, 5 predicate places. [2024-10-24 15:27:37,602 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 236 transitions, 804 flow [2024-10-24 15:27:37,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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) [2024-10-24 15:27:37,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:37,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:37,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:27:37,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:37,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:37,605 INFO L85 PathProgramCache]: Analyzing trace with hash 329997752, now seen corresponding path program 1 times [2024-10-24 15:27:37,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:37,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111369532] [2024-10-24 15:27:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:37,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111369532] [2024-10-24 15:27:37,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111369532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:37,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:37,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:27:37,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48541205] [2024-10-24 15:27:37,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:37,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:37,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:37,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:37,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:37,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 185 [2024-10-24 15:27:37,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 236 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2024-10-24 15:27:37,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:37,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 185 [2024-10-24 15:27:37,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:37,856 INFO L124 PetriNetUnfolderBase]: 176/1067 cut-off events. [2024-10-24 15:27:37,857 INFO L125 PetriNetUnfolderBase]: For 119/136 co-relation queries the response was YES. [2024-10-24 15:27:37,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 1067 events. 176/1067 cut-off events. For 119/136 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6029 event pairs, 20 based on Foata normal form. 1/991 useless extension candidates. Maximal degree in co-relation 1687. Up to 191 conditions per place. [2024-10-24 15:27:37,863 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 20 selfloop transitions, 3 changer transitions 0/242 dead transitions. [2024-10-24 15:27:37,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 242 transitions, 862 flow [2024-10-24 15:27:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-10-24 15:27:37,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8846846846846846 [2024-10-24 15:27:37,866 INFO L175 Difference]: Start difference. First operand has 180 places, 236 transitions, 804 flow. Second operand 3 states and 491 transitions. [2024-10-24 15:27:37,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 242 transitions, 862 flow [2024-10-24 15:27:37,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 242 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:27:37,877 INFO L231 Difference]: Finished difference. Result has 183 places, 236 transitions, 815 flow [2024-10-24 15:27:37,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=183, PETRI_TRANSITIONS=236} [2024-10-24 15:27:37,879 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, 8 predicate places. [2024-10-24 15:27:37,880 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 236 transitions, 815 flow [2024-10-24 15:27:37,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2024-10-24 15:27:37,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:37,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:37,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:27:37,881 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:37,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash -571676016, now seen corresponding path program 1 times [2024-10-24 15:27:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:37,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12155280] [2024-10-24 15:27:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:37,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:37,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:37,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12155280] [2024-10-24 15:27:37,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12155280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:37,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:37,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:37,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679934170] [2024-10-24 15:27:37,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:37,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:37,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:37,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:37,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 185 [2024-10-24 15:27:37,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 236 transitions, 815 flow. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2024-10-24 15:27:37,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:37,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 185 [2024-10-24 15:27:37,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:38,089 INFO L124 PetriNetUnfolderBase]: 145/864 cut-off events. [2024-10-24 15:27:38,090 INFO L125 PetriNetUnfolderBase]: For 109/128 co-relation queries the response was YES. [2024-10-24 15:27:38,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 864 events. 145/864 cut-off events. For 109/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4710 event pairs, 4 based on Foata normal form. 0/817 useless extension candidates. Maximal degree in co-relation 1463. Up to 221 conditions per place. [2024-10-24 15:27:38,094 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 1 changer transitions 0/236 dead transitions. [2024-10-24 15:27:38,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 236 transitions, 849 flow [2024-10-24 15:27:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:38,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-10-24 15:27:38,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.872072072072072 [2024-10-24 15:27:38,096 INFO L175 Difference]: Start difference. First operand has 183 places, 236 transitions, 815 flow. Second operand 3 states and 484 transitions. [2024-10-24 15:27:38,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 236 transitions, 849 flow [2024-10-24 15:27:38,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 236 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:27:38,102 INFO L231 Difference]: Finished difference. Result has 181 places, 234 transitions, 807 flow [2024-10-24 15:27:38,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=181, PETRI_TRANSITIONS=234} [2024-10-24 15:27:38,103 INFO L277 CegarLoopForPetriNet]: 175 programPoint places, 6 predicate places. [2024-10-24 15:27:38,105 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 234 transitions, 807 flow [2024-10-24 15:27:38,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2024-10-24 15:27:38,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:38,105 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:38,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:27:38,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-24 15:27:38,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1394837605, now seen corresponding path program 1 times [2024-10-24 15:27:38,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:38,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90792180] [2024-10-24 15:27:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:38,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:27:38,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:27:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:27:38,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:27:38,185 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:27:38,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-10-24 15:27:38,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-10-24 15:27:38,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-10-24 15:27:38,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-10-24 15:27:38,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-10-24 15:27:38,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-10-24 15:27:38,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-10-24 15:27:38,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-10-24 15:27:38,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-10-24 15:27:38,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-10-24 15:27:38,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-10-24 15:27:38,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-10-24 15:27:38,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-10-24 15:27:38,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-10-24 15:27:38,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-10-24 15:27:38,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-10-24 15:27:38,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-10-24 15:27:38,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-10-24 15:27:38,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-10-24 15:27:38,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-10-24 15:27:38,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:27:38,192 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:38,195 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:27:38,195 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:27:38,229 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:27:38,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 256 transitions, 528 flow [2024-10-24 15:27:38,289 INFO L124 PetriNetUnfolderBase]: 34/410 cut-off events. [2024-10-24 15:27:38,289 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:27:38,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 410 events. 34/410 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1564 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2024-10-24 15:27:38,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 256 transitions, 528 flow [2024-10-24 15:27:38,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 256 transitions, 528 flow [2024-10-24 15:27:38,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:27:38,304 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5b577f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:27:38,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-24 15:27:38,306 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:27:38,307 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-24 15:27:38,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:27:38,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:38,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:38,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:38,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:38,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1225064853, now seen corresponding path program 1 times [2024-10-24 15:27:38,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:38,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539014859] [2024-10-24 15:27:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:38,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:38,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:38,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539014859] [2024-10-24 15:27:38,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539014859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:38,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:38,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:38,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803320583] [2024-10-24 15:27:38,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:38,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:38,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:38,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:38,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 256 [2024-10-24 15:27:38,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 256 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:27:38,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:38,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 256 [2024-10-24 15:27:38,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:38,965 INFO L124 PetriNetUnfolderBase]: 430/3697 cut-off events. [2024-10-24 15:27:38,966 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-10-24 15:27:38,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4481 conditions, 3697 events. 430/3697 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 32095 event pairs, 420 based on Foata normal form. 578/3897 useless extension candidates. Maximal degree in co-relation 3717. Up to 739 conditions per place. [2024-10-24 15:27:38,991 INFO L140 encePairwiseOnDemand]: 235/256 looper letters, 24 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-10-24 15:27:38,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 235 transitions, 538 flow [2024-10-24 15:27:38,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:38,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-10-24 15:27:38,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.87890625 [2024-10-24 15:27:38,994 INFO L175 Difference]: Start difference. First operand has 241 places, 256 transitions, 528 flow. Second operand 3 states and 675 transitions. [2024-10-24 15:27:38,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 235 transitions, 538 flow [2024-10-24 15:27:38,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:27:38,999 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 490 flow [2024-10-24 15:27:39,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2024-10-24 15:27:39,003 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -1 predicate places. [2024-10-24 15:27:39,003 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 490 flow [2024-10-24 15:27:39,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:27:39,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:39,004 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:39,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:27:39,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:39,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash 466307383, now seen corresponding path program 1 times [2024-10-24 15:27:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:39,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375453595] [2024-10-24 15:27:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375453595] [2024-10-24 15:27:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375453595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:39,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247765804] [2024-10-24 15:27:39,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:39,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:39,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:39,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:39,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:39,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 256 [2024-10-24 15:27:39,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2024-10-24 15:27:39,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:39,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 256 [2024-10-24 15:27:39,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:39,625 INFO L124 PetriNetUnfolderBase]: 418/3631 cut-off events. [2024-10-24 15:27:39,625 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-24 15:27:39,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4396 conditions, 3631 events. 418/3631 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31166 event pairs, 414 based on Foata normal form. 0/3274 useless extension candidates. Maximal degree in co-relation 4355. Up to 717 conditions per place. [2024-10-24 15:27:39,654 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 22 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2024-10-24 15:27:39,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 233 transitions, 532 flow [2024-10-24 15:27:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-10-24 15:27:39,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8606770833333334 [2024-10-24 15:27:39,660 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 490 flow. Second operand 3 states and 661 transitions. [2024-10-24 15:27:39,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 233 transitions, 532 flow [2024-10-24 15:27:39,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 233 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:27:39,664 INFO L231 Difference]: Finished difference. Result has 238 places, 233 transitions, 484 flow [2024-10-24 15:27:39,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=238, PETRI_TRANSITIONS=233} [2024-10-24 15:27:39,667 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -3 predicate places. [2024-10-24 15:27:39,668 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 233 transitions, 484 flow [2024-10-24 15:27:39,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2024-10-24 15:27:39,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:39,668 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:39,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:27:39,669 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:39,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:39,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1196085300, now seen corresponding path program 1 times [2024-10-24 15:27:39,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:39,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512588959] [2024-10-24 15:27:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:39,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512588959] [2024-10-24 15:27:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512588959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:39,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:39,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:39,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229898290] [2024-10-24 15:27:39,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:39,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:39,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:39,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:39,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 256 [2024-10-24 15:27:39,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 233 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2024-10-24 15:27:39,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:39,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 256 [2024-10-24 15:27:39,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:40,234 INFO L124 PetriNetUnfolderBase]: 564/3800 cut-off events. [2024-10-24 15:27:40,234 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-24 15:27:40,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 3800 events. 564/3800 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 33926 event pairs, 552 based on Foata normal form. 0/3412 useless extension candidates. Maximal degree in co-relation 4775. Up to 957 conditions per place. [2024-10-24 15:27:40,260 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 26 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2024-10-24 15:27:40,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 232 transitions, 538 flow [2024-10-24 15:27:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:40,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2024-10-24 15:27:40,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8502604166666666 [2024-10-24 15:27:40,304 INFO L175 Difference]: Start difference. First operand has 238 places, 233 transitions, 484 flow. Second operand 3 states and 653 transitions. [2024-10-24 15:27:40,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 232 transitions, 538 flow [2024-10-24 15:27:40,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 537 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:27:40,312 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 485 flow [2024-10-24 15:27:40,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=485, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2024-10-24 15:27:40,314 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -3 predicate places. [2024-10-24 15:27:40,314 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 485 flow [2024-10-24 15:27:40,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2024-10-24 15:27:40,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:40,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:40,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:27:40,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:40,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1062347049, now seen corresponding path program 1 times [2024-10-24 15:27:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:40,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837039071] [2024-10-24 15:27:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:40,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:40,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:40,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837039071] [2024-10-24 15:27:40,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837039071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:40,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:40,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:27:40,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783588606] [2024-10-24 15:27:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:40,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:27:40,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:27:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:27:41,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 256 [2024-10-24 15:27:41,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 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) [2024-10-24 15:27:41,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:41,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 256 [2024-10-24 15:27:41,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:48,753 INFO L124 PetriNetUnfolderBase]: 27083/64954 cut-off events. [2024-10-24 15:27:48,754 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-10-24 15:27:48,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107320 conditions, 64954 events. 27083/64954 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 726108 event pairs, 18139 based on Foata normal form. 0/60423 useless extension candidates. Maximal degree in co-relation 107281. Up to 37375 conditions per place. [2024-10-24 15:27:49,123 INFO L140 encePairwiseOnDemand]: 217/256 looper letters, 120 selfloop transitions, 134 changer transitions 0/414 dead transitions. [2024-10-24 15:27:49,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 414 transitions, 1362 flow [2024-10-24 15:27:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:27:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:27:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1245 transitions. [2024-10-24 15:27:49,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.810546875 [2024-10-24 15:27:49,127 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 485 flow. Second operand 6 states and 1245 transitions. [2024-10-24 15:27:49,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 414 transitions, 1362 flow [2024-10-24 15:27:49,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 414 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:27:49,146 INFO L231 Difference]: Finished difference. Result has 246 places, 365 transitions, 1359 flow [2024-10-24 15:27:49,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1359, PETRI_PLACES=246, PETRI_TRANSITIONS=365} [2024-10-24 15:27:49,148 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 5 predicate places. [2024-10-24 15:27:49,148 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 365 transitions, 1359 flow [2024-10-24 15:27:49,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 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) [2024-10-24 15:27:49,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:49,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:49,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:27:49,150 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:49,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash 918036152, now seen corresponding path program 1 times [2024-10-24 15:27:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:49,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143150072] [2024-10-24 15:27:49,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:49,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:49,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143150072] [2024-10-24 15:27:49,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143150072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:49,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:49,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:27:49,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891175994] [2024-10-24 15:27:49,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:49,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:49,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:49,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:49,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:49,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 256 [2024-10-24 15:27:49,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 365 transitions, 1359 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-10-24 15:27:49,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:49,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 256 [2024-10-24 15:27:49,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:52,994 INFO L124 PetriNetUnfolderBase]: 10377/34063 cut-off events. [2024-10-24 15:27:52,994 INFO L125 PetriNetUnfolderBase]: For 5308/5785 co-relation queries the response was YES. [2024-10-24 15:27:53,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60238 conditions, 34063 events. 10377/34063 cut-off events. For 5308/5785 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 393695 event pairs, 4204 based on Foata normal form. 1/31230 useless extension candidates. Maximal degree in co-relation 60195. Up to 11276 conditions per place. [2024-10-24 15:27:53,222 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 30 selfloop transitions, 3 changer transitions 0/373 dead transitions. [2024-10-24 15:27:53,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 373 transitions, 1447 flow [2024-10-24 15:27:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:53,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 671 transitions. [2024-10-24 15:27:53,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736979166666666 [2024-10-24 15:27:53,224 INFO L175 Difference]: Start difference. First operand has 246 places, 365 transitions, 1359 flow. Second operand 3 states and 671 transitions. [2024-10-24 15:27:53,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 373 transitions, 1447 flow [2024-10-24 15:27:53,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 373 transitions, 1447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:27:53,351 INFO L231 Difference]: Finished difference. Result has 249 places, 367 transitions, 1384 flow [2024-10-24 15:27:53,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1359, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1384, PETRI_PLACES=249, PETRI_TRANSITIONS=367} [2024-10-24 15:27:53,352 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 8 predicate places. [2024-10-24 15:27:53,352 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 367 transitions, 1384 flow [2024-10-24 15:27:53,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-10-24 15:27:53,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:53,353 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:53,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:27:53,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:53,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash -666200619, now seen corresponding path program 1 times [2024-10-24 15:27:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:53,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049600926] [2024-10-24 15:27:53,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:53,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:53,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049600926] [2024-10-24 15:27:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049600926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:53,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:53,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:27:53,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380246783] [2024-10-24 15:27:53,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:53,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:27:53,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:53,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:27:53,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:27:53,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 256 [2024-10-24 15:27:53,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 367 transitions, 1384 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2024-10-24 15:27:53,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:53,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 256 [2024-10-24 15:27:53,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:27:57,286 INFO L124 PetriNetUnfolderBase]: 9976/30271 cut-off events. [2024-10-24 15:27:57,286 INFO L125 PetriNetUnfolderBase]: For 5161/5599 co-relation queries the response was YES. [2024-10-24 15:27:57,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56400 conditions, 30271 events. 9976/30271 cut-off events. For 5161/5599 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 336112 event pairs, 2877 based on Foata normal form. 0/28566 useless extension candidates. Maximal degree in co-relation 56356. Up to 10725 conditions per place. [2024-10-24 15:27:57,473 INFO L140 encePairwiseOnDemand]: 250/256 looper letters, 34 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2024-10-24 15:27:57,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 372 transitions, 1471 flow [2024-10-24 15:27:57,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:27:57,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:27:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-10-24 15:27:57,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567708333333334 [2024-10-24 15:27:57,475 INFO L175 Difference]: Start difference. First operand has 249 places, 367 transitions, 1384 flow. Second operand 3 states and 658 transitions. [2024-10-24 15:27:57,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 372 transitions, 1471 flow [2024-10-24 15:27:57,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 372 transitions, 1468 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:27:57,591 INFO L231 Difference]: Finished difference. Result has 247 places, 365 transitions, 1387 flow [2024-10-24 15:27:57,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1373, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1387, PETRI_PLACES=247, PETRI_TRANSITIONS=365} [2024-10-24 15:27:57,592 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 6 predicate places. [2024-10-24 15:27:57,592 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 365 transitions, 1387 flow [2024-10-24 15:27:57,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2024-10-24 15:27:57,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:27:57,593 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:27:57,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:27:57,593 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:27:57,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:27:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1164571068, now seen corresponding path program 1 times [2024-10-24 15:27:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:27:57,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745121917] [2024-10-24 15:27:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:27:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:27:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:27:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:27:57,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:27:57,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745121917] [2024-10-24 15:27:57,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745121917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:27:57,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:27:57,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:27:57,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41039029] [2024-10-24 15:27:57,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:27:57,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:27:57,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:27:57,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:27:57,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:27:58,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 256 [2024-10-24 15:27:58,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 365 transitions, 1387 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-10-24 15:27:58,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:27:58,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 256 [2024-10-24 15:27:58,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:07,829 INFO L124 PetriNetUnfolderBase]: 35577/80673 cut-off events. [2024-10-24 15:28:07,830 INFO L125 PetriNetUnfolderBase]: For 33687/37279 co-relation queries the response was YES. [2024-10-24 15:28:08,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187284 conditions, 80673 events. 35577/80673 cut-off events. For 33687/37279 co-relation queries the response was YES. Maximal size of possible extension queue 1849. Compared 907583 event pairs, 7719 based on Foata normal form. 84/77047 useless extension candidates. Maximal degree in co-relation 187239. Up to 33919 conditions per place. [2024-10-24 15:28:08,640 INFO L140 encePairwiseOnDemand]: 208/256 looper letters, 463 selfloop transitions, 219 changer transitions 0/848 dead transitions. [2024-10-24 15:28:08,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 848 transitions, 4965 flow [2024-10-24 15:28:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:28:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:28:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1342 transitions. [2024-10-24 15:28:08,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736979166666666 [2024-10-24 15:28:08,644 INFO L175 Difference]: Start difference. First operand has 247 places, 365 transitions, 1387 flow. Second operand 6 states and 1342 transitions. [2024-10-24 15:28:08,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 848 transitions, 4965 flow [2024-10-24 15:28:09,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 848 transitions, 4965 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:09,019 INFO L231 Difference]: Finished difference. Result has 257 places, 596 transitions, 3703 flow [2024-10-24 15:28:09,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1387, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3703, PETRI_PLACES=257, PETRI_TRANSITIONS=596} [2024-10-24 15:28:09,020 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, 16 predicate places. [2024-10-24 15:28:09,021 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 596 transitions, 3703 flow [2024-10-24 15:28:09,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-10-24 15:28:09,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:09,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:09,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:28:09,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:28:09,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:09,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1173917037, now seen corresponding path program 1 times [2024-10-24 15:28:09,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:09,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704861958] [2024-10-24 15:28:09,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:09,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:09,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:09,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704861958] [2024-10-24 15:28:09,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704861958] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:09,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030120503] [2024-10-24 15:28:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:09,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:09,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:09,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:09,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:28:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:09,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:09,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:09,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:09,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030120503] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:09,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:09,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:09,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126170792] [2024-10-24 15:28:09,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:09,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:09,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 256 [2024-10-24 15:28:09,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 596 transitions, 3703 flow. Second operand has 10 states, 10 states have (on average 212.2) internal successors, (2122), 10 states have internal predecessors, (2122), 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) [2024-10-24 15:28:09,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:09,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 256 [2024-10-24 15:28:09,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:16,564 INFO L124 PetriNetUnfolderBase]: 21570/55483 cut-off events. [2024-10-24 15:28:16,564 INFO L125 PetriNetUnfolderBase]: For 52183/55860 co-relation queries the response was YES. [2024-10-24 15:28:16,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151217 conditions, 55483 events. 21570/55483 cut-off events. For 52183/55860 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 614195 event pairs, 2519 based on Foata normal form. 596/54631 useless extension candidates. Maximal degree in co-relation 151167. Up to 19817 conditions per place. [2024-10-24 15:28:17,047 INFO L140 encePairwiseOnDemand]: 251/256 looper letters, 72 selfloop transitions, 9 changer transitions 0/606 dead transitions. [2024-10-24 15:28:17,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 606 transitions, 3877 flow [2024-10-24 15:28:17,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1971 transitions. [2024-10-24 15:28:17,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85546875 [2024-10-24 15:28:17,052 INFO L175 Difference]: Start difference. First operand has 257 places, 596 transitions, 3703 flow. Second operand 9 states and 1971 transitions. [2024-10-24 15:28:17,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 606 transitions, 3877 flow [2024-10-24 15:28:18,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 606 transitions, 3859 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:18,093 INFO L231 Difference]: Finished difference. Result has 219 places, 550 transitions, 3603 flow [2024-10-24 15:28:18,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=3581, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3603, PETRI_PLACES=219, PETRI_TRANSITIONS=550} [2024-10-24 15:28:18,095 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -22 predicate places. [2024-10-24 15:28:18,095 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 550 transitions, 3603 flow [2024-10-24 15:28:18,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 212.2) internal successors, (2122), 10 states have internal predecessors, (2122), 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) [2024-10-24 15:28:18,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:18,096 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:18,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 15:28:18,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 15:28:18,301 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:28:18,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:18,301 INFO L85 PathProgramCache]: Analyzing trace with hash 966835269, now seen corresponding path program 1 times [2024-10-24 15:28:18,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:18,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195593671] [2024-10-24 15:28:18,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:18,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:18,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:18,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195593671] [2024-10-24 15:28:18,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195593671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:18,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:18,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:28:18,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493297830] [2024-10-24 15:28:18,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:18,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:28:18,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:28:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:28:18,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 256 [2024-10-24 15:28:18,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 550 transitions, 3603 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 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) [2024-10-24 15:28:18,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:18,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 256 [2024-10-24 15:28:18,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:28,863 INFO L124 PetriNetUnfolderBase]: 33630/74283 cut-off events. [2024-10-24 15:28:28,863 INFO L125 PetriNetUnfolderBase]: For 105292/112116 co-relation queries the response was YES. [2024-10-24 15:28:29,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242174 conditions, 74283 events. 33630/74283 cut-off events. For 105292/112116 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 776909 event pairs, 7086 based on Foata normal form. 451/73468 useless extension candidates. Maximal degree in co-relation 242123. Up to 46282 conditions per place. [2024-10-24 15:28:29,421 INFO L140 encePairwiseOnDemand]: 225/256 looper letters, 512 selfloop transitions, 252 changer transitions 0/889 dead transitions. [2024-10-24 15:28:29,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 889 transitions, 7465 flow [2024-10-24 15:28:29,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:28:29,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:28:29,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2024-10-24 15:28:29,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7682291666666666 [2024-10-24 15:28:29,425 INFO L175 Difference]: Start difference. First operand has 219 places, 550 transitions, 3603 flow. Second operand 6 states and 1180 transitions. [2024-10-24 15:28:29,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 889 transitions, 7465 flow [2024-10-24 15:28:30,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 889 transitions, 7442 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-24 15:28:30,176 INFO L231 Difference]: Finished difference. Result has 224 places, 800 transitions, 6736 flow [2024-10-24 15:28:30,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=3580, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6736, PETRI_PLACES=224, PETRI_TRANSITIONS=800} [2024-10-24 15:28:30,178 INFO L277 CegarLoopForPetriNet]: 241 programPoint places, -17 predicate places. [2024-10-24 15:28:30,178 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 800 transitions, 6736 flow [2024-10-24 15:28:30,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 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) [2024-10-24 15:28:30,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:30,179 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:30,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:28:30,179 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-24 15:28:30,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:30,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1589139369, now seen corresponding path program 1 times [2024-10-24 15:28:30,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:30,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117545754] [2024-10-24 15:28:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:30,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 15:28:30,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:30,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117545754] [2024-10-24 15:28:30,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117545754] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:30,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411535050] [2024-10-24 15:28:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:30,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:30,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:30,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:30,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process