./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/pthread-deagle/reorder_c11_bad-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 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/pthread-deagle/reorder_c11_bad-30.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 8d7df89eaaa05ee1c4077455abbd501c07d86257ca2c037ce71ae27b3838effb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:16:17,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:16:17,284 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:16:17,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:16:17,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:16:17,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:16:17,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:16:17,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:16:17,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:16:17,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:16:17,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:16:17,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:16:17,304 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:16:17,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:16:17,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:16:17,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:16:17,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:16:17,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:16:17,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:16:17,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:16:17,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:16:17,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:16:17,307 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:16:17,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:16:17,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:16:17,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:16:17,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:16:17,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:16:17,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:16:17,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:16:17,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:16:17,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:16:17,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:16:17,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:16:17,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:16:17,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:16:17,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:16:17,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:16:17,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:16:17,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:16:17,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:16:17,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d7df89eaaa05ee1c4077455abbd501c07d86257ca2c037ce71ae27b3838effb [2024-10-14 17:16:17,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:16:17,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:16:17,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:16:17,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:16:17,535 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:16:17,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i [2024-10-14 17:16:18,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:16:19,158 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:16:19,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-30.i [2024-10-14 17:16:19,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facc168e3/b489e997d13c436c895c69d6557093b7/FLAG60c6643e8 [2024-10-14 17:16:19,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facc168e3/b489e997d13c436c895c69d6557093b7 [2024-10-14 17:16:19,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:16:19,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:16:19,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:16:19,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:16:19,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:16:19,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e81c1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19, skipping insertion in model container [2024-10-14 17:16:19,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:16:19,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:16:19,571 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:16:19,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:16:19,692 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:16:19,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19 WrapperNode [2024-10-14 17:16:19,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:16:19,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:16:19,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:16:19,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:16:19,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,750 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 173 [2024-10-14 17:16:19,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:16:19,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:16:19,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:16:19,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:16:19,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:16:19,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:16:19,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:16:19,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:16:19,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (1/1) ... [2024-10-14 17:16:19,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:16:19,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:16:19,824 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) [2024-10-14 17:16:19,826 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 [2024-10-14 17:16:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:16:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-14 17:16:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-14 17:16:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 17:16:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:16:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:16:19,857 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:16:19,959 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:16:19,960 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:16:20,170 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:16:20,170 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:16:20,233 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:16:20,233 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-14 17:16:20,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:16:20 BoogieIcfgContainer [2024-10-14 17:16:20,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:16:20,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:16:20,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:16:20,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:16:20,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:16:19" (1/3) ... [2024-10-14 17:16:20,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328f7560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:16:20, skipping insertion in model container [2024-10-14 17:16:20,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:16:19" (2/3) ... [2024-10-14 17:16:20,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328f7560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:16:20, skipping insertion in model container [2024-10-14 17:16:20,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:16:20" (3/3) ... [2024-10-14 17:16:20,251 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-30.i [2024-10-14 17:16:20,273 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:16:20,273 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-14 17:16:20,274 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:16:20,409 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-14 17:16:20,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 456 flow [2024-10-14 17:16:20,571 INFO L124 PetriNetUnfolderBase]: 32/558 cut-off events. [2024-10-14 17:16:20,571 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 17:16:20,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 558 events. 32/558 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2237 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 267. Up to 8 conditions per place. [2024-10-14 17:16:20,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 456 flow [2024-10-14 17:16:20,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 456 flow [2024-10-14 17:16:20,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:16:20,606 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;@7b1024d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:16:20,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-14 17:16:20,610 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:16:20,610 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-14 17:16:20,610 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:16:20,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:20,611 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] [2024-10-14 17:16:20,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:20,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1315286322, now seen corresponding path program 1 times [2024-10-14 17:16:20,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:20,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444554249] [2024-10-14 17:16:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:20,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:20,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:20,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444554249] [2024-10-14 17:16:20,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444554249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:20,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:20,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:20,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129098877] [2024-10-14 17:16:20,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:20,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:20,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:20,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-10-14 17:16:21,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-10-14 17:16:21,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:21,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-10-14 17:16:21,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:21,114 INFO L124 PetriNetUnfolderBase]: 85/994 cut-off events. [2024-10-14 17:16:21,115 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2024-10-14 17:16:21,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 994 events. 85/994 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5519 event pairs, 64 based on Foata normal form. 82/892 useless extension candidates. Maximal degree in co-relation 886. Up to 207 conditions per place. [2024-10-14 17:16:21,123 INFO L140 encePairwiseOnDemand]: 207/218 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-10-14 17:16:21,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 500 flow [2024-10-14 17:16:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-10-14 17:16:21,136 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8669724770642202 [2024-10-14 17:16:21,140 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 456 flow. Second operand 3 states and 567 transitions. [2024-10-14 17:16:21,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 500 flow [2024-10-14 17:16:21,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:16:21,148 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 438 flow [2024-10-14 17:16:21,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2024-10-14 17:16:21,153 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2024-10-14 17:16:21,153 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 438 flow [2024-10-14 17:16:21,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-10-14 17:16:21,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:21,154 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] [2024-10-14 17:16:21,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:16:21,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:21,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash -707742264, now seen corresponding path program 1 times [2024-10-14 17:16:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:21,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248702939] [2024-10-14 17:16:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:21,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:21,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:21,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248702939] [2024-10-14 17:16:21,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248702939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:21,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:21,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:21,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585065934] [2024-10-14 17:16:21,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:21,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:21,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:21,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 218 [2024-10-14 17:16:21,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-10-14 17:16:21,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:21,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 218 [2024-10-14 17:16:21,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:21,395 INFO L124 PetriNetUnfolderBase]: 117/1005 cut-off events. [2024-10-14 17:16:21,395 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-10-14 17:16:21,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 1005 events. 117/1005 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5494 event pairs, 78 based on Foata normal form. 0/884 useless extension candidates. Maximal degree in co-relation 1304. Up to 243 conditions per place. [2024-10-14 17:16:21,409 INFO L140 encePairwiseOnDemand]: 195/218 looper letters, 31 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2024-10-14 17:16:21,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 197 transitions, 502 flow [2024-10-14 17:16:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-10-14 17:16:21,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027522935779816 [2024-10-14 17:16:21,412 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 3 states and 525 transitions. [2024-10-14 17:16:21,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 197 transitions, 502 flow [2024-10-14 17:16:21,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 197 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:21,420 INFO L231 Difference]: Finished difference. Result has 195 places, 195 transitions, 432 flow [2024-10-14 17:16:21,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=195, PETRI_TRANSITIONS=195} [2024-10-14 17:16:21,425 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -15 predicate places. [2024-10-14 17:16:21,425 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 195 transitions, 432 flow [2024-10-14 17:16:21,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-10-14 17:16:21,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:21,426 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] [2024-10-14 17:16:21,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:16:21,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:21,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1773346952, now seen corresponding path program 1 times [2024-10-14 17:16:21,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:21,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661797491] [2024-10-14 17:16:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:21,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:21,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:21,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661797491] [2024-10-14 17:16:21,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661797491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:21,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:21,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:16:21,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193412719] [2024-10-14 17:16:21,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:21,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:21,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:21,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:21,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:21,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 218 [2024-10-14 17:16:21,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 195 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:21,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:21,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 218 [2024-10-14 17:16:21,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:21,648 INFO L124 PetriNetUnfolderBase]: 27/511 cut-off events. [2024-10-14 17:16:21,649 INFO L125 PetriNetUnfolderBase]: For 28/32 co-relation queries the response was YES. [2024-10-14 17:16:21,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 511 events. 27/511 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1590 event pairs, 10 based on Foata normal form. 6/465 useless extension candidates. Maximal degree in co-relation 443. Up to 39 conditions per place. [2024-10-14 17:16:21,652 INFO L140 encePairwiseOnDemand]: 206/218 looper letters, 17 selfloop transitions, 8 changer transitions 9/200 dead transitions. [2024-10-14 17:16:21,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 200 transitions, 500 flow [2024-10-14 17:16:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-10-14 17:16:21,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-10-14 17:16:21,654 INFO L175 Difference]: Start difference. First operand has 195 places, 195 transitions, 432 flow. Second operand 3 states and 594 transitions. [2024-10-14 17:16:21,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 200 transitions, 500 flow [2024-10-14 17:16:21,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 200 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:21,658 INFO L231 Difference]: Finished difference. Result has 196 places, 187 transitions, 426 flow [2024-10-14 17:16:21,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=196, PETRI_TRANSITIONS=187} [2024-10-14 17:16:21,659 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -14 predicate places. [2024-10-14 17:16:21,659 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 187 transitions, 426 flow [2024-10-14 17:16:21,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:21,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:21,660 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] [2024-10-14 17:16:21,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:16:21,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:21,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:21,660 INFO L85 PathProgramCache]: Analyzing trace with hash 258671552, now seen corresponding path program 1 times [2024-10-14 17:16:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:21,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083680130] [2024-10-14 17:16:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:21,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:21,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:21,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:21,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083680130] [2024-10-14 17:16:21,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083680130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:21,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:21,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:16:21,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525948095] [2024-10-14 17:16:21,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:21,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:16:21,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:21,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:16:21,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:16:22,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 218 [2024-10-14 17:16:22,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 187 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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) [2024-10-14 17:16:22,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:22,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 218 [2024-10-14 17:16:22,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:22,207 INFO L124 PetriNetUnfolderBase]: 83/734 cut-off events. [2024-10-14 17:16:22,208 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-14 17:16:22,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 734 events. 83/734 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2892 event pairs, 5 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 815. Up to 193 conditions per place. [2024-10-14 17:16:22,212 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 42 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-10-14 17:16:22,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 194 transitions, 534 flow [2024-10-14 17:16:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:16:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:16:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2024-10-14 17:16:22,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8065749235474006 [2024-10-14 17:16:22,215 INFO L175 Difference]: Start difference. First operand has 196 places, 187 transitions, 426 flow. Second operand 6 states and 1055 transitions. [2024-10-14 17:16:22,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 194 transitions, 534 flow [2024-10-14 17:16:22,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:16:22,218 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 426 flow [2024-10-14 17:16:22,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-10-14 17:16:22,219 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2024-10-14 17:16:22,219 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 426 flow [2024-10-14 17:16:22,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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) [2024-10-14 17:16:22,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:22,220 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] [2024-10-14 17:16:22,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:16:22,220 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:22,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1761069613, now seen corresponding path program 1 times [2024-10-14 17:16:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:22,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441571956] [2024-10-14 17:16:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441571956] [2024-10-14 17:16:22,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441571956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:22,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:22,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:22,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993383651] [2024-10-14 17:16:22,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:22,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:22,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:22,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:22,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-10-14 17:16:22,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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) [2024-10-14 17:16:22,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:22,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-10-14 17:16:22,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:22,454 INFO L124 PetriNetUnfolderBase]: 63/716 cut-off events. [2024-10-14 17:16:22,454 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-14 17:16:22,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 716 events. 63/716 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2845 event pairs, 49 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 749. Up to 151 conditions per place. [2024-10-14 17:16:22,458 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-10-14 17:16:22,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 187 transitions, 496 flow [2024-10-14 17:16:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:22,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-10-14 17:16:22,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-10-14 17:16:22,459 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 426 flow. Second operand 3 states and 560 transitions. [2024-10-14 17:16:22,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 187 transitions, 496 flow [2024-10-14 17:16:22,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 187 transitions, 486 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:16:22,462 INFO L231 Difference]: Finished difference. Result has 186 places, 185 transitions, 418 flow [2024-10-14 17:16:22,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=186, PETRI_TRANSITIONS=185} [2024-10-14 17:16:22,464 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -24 predicate places. [2024-10-14 17:16:22,464 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 185 transitions, 418 flow [2024-10-14 17:16:22,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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) [2024-10-14 17:16:22,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:22,465 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-14 17:16:22,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:16:22,465 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:22,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:22,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1996288427, now seen corresponding path program 1 times [2024-10-14 17:16:22,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:22,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832982799] [2024-10-14 17:16:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:22,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832982799] [2024-10-14 17:16:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832982799] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:16:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265957505] [2024-10-14 17:16:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:22,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:16:22,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:16:22,567 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) [2024-10-14 17:16:22,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:16:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:22,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:16:22,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:16:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:16:22,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:16:22,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265957505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:22,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:16:22,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:16:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234802279] [2024-10-14 17:16:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:22,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:22,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:22,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:16:22,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-10-14 17:16:22,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 185 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2024-10-14 17:16:22,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:22,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-10-14 17:16:22,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:22,891 INFO L124 PetriNetUnfolderBase]: 63/700 cut-off events. [2024-10-14 17:16:22,891 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-14 17:16:22,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 700 events. 63/700 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2748 event pairs, 49 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 723. Up to 151 conditions per place. [2024-10-14 17:16:22,895 INFO L140 encePairwiseOnDemand]: 215/218 looper letters, 32 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-10-14 17:16:22,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 186 transitions, 488 flow [2024-10-14 17:16:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-10-14 17:16:22,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8562691131498471 [2024-10-14 17:16:22,897 INFO L175 Difference]: Start difference. First operand has 186 places, 185 transitions, 418 flow. Second operand 3 states and 560 transitions. [2024-10-14 17:16:22,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 186 transitions, 488 flow [2024-10-14 17:16:22,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 186 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:22,901 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 416 flow [2024-10-14 17:16:22,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-10-14 17:16:22,903 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -25 predicate places. [2024-10-14 17:16:22,904 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 416 flow [2024-10-14 17:16:22,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2024-10-14 17:16:22,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:22,905 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2024-10-14 17:16:22,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 17:16:23,109 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,SelfDestructingSolverStorable5 [2024-10-14 17:16:23,110 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-14 17:16:23,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash 95516775, now seen corresponding path program 1 times [2024-10-14 17:16:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:23,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829601490] [2024-10-14 17:16:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:16:23,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:16:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:16:23,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:16:23,178 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:16:23,179 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-10-14 17:16:23,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-10-14 17:16:23,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-10-14 17:16:23,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-10-14 17:16:23,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-10-14 17:16:23,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-10-14 17:16:23,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-10-14 17:16:23,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-10-14 17:16:23,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-10-14 17:16:23,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-10-14 17:16:23,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-10-14 17:16:23,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-10-14 17:16:23,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-10-14 17:16:23,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-10-14 17:16:23,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-10-14 17:16:23,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-10-14 17:16:23,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-10-14 17:16:23,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-10-14 17:16:23,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-10-14 17:16:23,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-10-14 17:16:23,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-10-14 17:16:23,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-10-14 17:16:23,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-10-14 17:16:23,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-10-14 17:16:23,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-10-14 17:16:23,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-10-14 17:16:23,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-10-14 17:16:23,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-10-14 17:16:23,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-10-14 17:16:23,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-10-14 17:16:23,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-10-14 17:16:23,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 38 remaining) [2024-10-14 17:16:23,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-10-14 17:16:23,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-10-14 17:16:23,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-10-14 17:16:23,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-10-14 17:16:23,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-10-14 17:16:23,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-10-14 17:16:23,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:16:23,192 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:23,194 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 17:16:23,195 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 17:16:23,238 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-14 17:16:23,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 259 places, 272 transitions, 588 flow [2024-10-14 17:16:23,384 INFO L124 PetriNetUnfolderBase]: 131/1812 cut-off events. [2024-10-14 17:16:23,384 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-14 17:16:23,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1812 events. 131/1812 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10481 event pairs, 2 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 1028. Up to 32 conditions per place. [2024-10-14 17:16:23,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 259 places, 272 transitions, 588 flow [2024-10-14 17:16:23,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 272 transitions, 588 flow [2024-10-14 17:16:23,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:16:23,413 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;@7b1024d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:16:23,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-10-14 17:16:23,415 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:16:23,415 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-14 17:16:23,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:16:23,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:23,415 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] [2024-10-14 17:16:23,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:23,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash 586871886, now seen corresponding path program 1 times [2024-10-14 17:16:23,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:23,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520197006] [2024-10-14 17:16:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:23,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:23,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:23,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520197006] [2024-10-14 17:16:23,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520197006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:23,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:23,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:23,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308011076] [2024-10-14 17:16:23,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:23,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:23,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:23,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:23,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:23,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-10-14 17:16:23,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 272 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2024-10-14 17:16:23,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:23,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-10-14 17:16:23,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:24,427 INFO L124 PetriNetUnfolderBase]: 1200/7025 cut-off events. [2024-10-14 17:16:24,428 INFO L125 PetriNetUnfolderBase]: For 678/712 co-relation queries the response was YES. [2024-10-14 17:16:24,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 7025 events. 1200/7025 cut-off events. For 678/712 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 62105 event pairs, 985 based on Foata normal form. 1614/7418 useless extension candidates. Maximal degree in co-relation 4757. Up to 2070 conditions per place. [2024-10-14 17:16:24,497 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 39 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2024-10-14 17:16:24,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 255 transitions, 636 flow [2024-10-14 17:16:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-10-14 17:16:24,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8602941176470589 [2024-10-14 17:16:24,500 INFO L175 Difference]: Start difference. First operand has 259 places, 272 transitions, 588 flow. Second operand 3 states and 702 transitions. [2024-10-14 17:16:24,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 255 transitions, 636 flow [2024-10-14 17:16:24,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 255 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:16:24,504 INFO L231 Difference]: Finished difference. Result has 252 places, 255 transitions, 558 flow [2024-10-14 17:16:24,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=252, PETRI_TRANSITIONS=255} [2024-10-14 17:16:24,505 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -7 predicate places. [2024-10-14 17:16:24,506 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 255 transitions, 558 flow [2024-10-14 17:16:24,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2024-10-14 17:16:24,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:24,506 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] [2024-10-14 17:16:24,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:16:24,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:24,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1310803050, now seen corresponding path program 1 times [2024-10-14 17:16:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306691675] [2024-10-14 17:16:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:24,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:24,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:24,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306691675] [2024-10-14 17:16:24,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306691675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:24,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:24,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396906920] [2024-10-14 17:16:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:24,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:24,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:24,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2024-10-14 17:16:24,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 255 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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) [2024-10-14 17:16:24,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:24,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2024-10-14 17:16:24,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:25,541 INFO L124 PetriNetUnfolderBase]: 1650/7399 cut-off events. [2024-10-14 17:16:25,541 INFO L125 PetriNetUnfolderBase]: For 653/671 co-relation queries the response was YES. [2024-10-14 17:16:25,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10619 conditions, 7399 events. 1650/7399 cut-off events. For 653/671 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 62410 event pairs, 1169 based on Foata normal form. 0/6613 useless extension candidates. Maximal degree in co-relation 10588. Up to 2412 conditions per place. [2024-10-14 17:16:25,624 INFO L140 encePairwiseOnDemand]: 249/272 looper letters, 41 selfloop transitions, 11 changer transitions 0/247 dead transitions. [2024-10-14 17:16:25,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 247 transitions, 646 flow [2024-10-14 17:16:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:25,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:25,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-10-14 17:16:25,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8063725490196079 [2024-10-14 17:16:25,627 INFO L175 Difference]: Start difference. First operand has 252 places, 255 transitions, 558 flow. Second operand 3 states and 658 transitions. [2024-10-14 17:16:25,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 247 transitions, 646 flow [2024-10-14 17:16:25,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 247 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:25,634 INFO L231 Difference]: Finished difference. Result has 240 places, 243 transitions, 552 flow [2024-10-14 17:16:25,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=240, PETRI_TRANSITIONS=243} [2024-10-14 17:16:25,635 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-10-14 17:16:25,635 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 243 transitions, 552 flow [2024-10-14 17:16:25,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 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) [2024-10-14 17:16:25,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:25,636 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] [2024-10-14 17:16:25,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:16:25,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:25,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 169601016, now seen corresponding path program 1 times [2024-10-14 17:16:25,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:25,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687810995] [2024-10-14 17:16:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:25,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:25,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:25,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687810995] [2024-10-14 17:16:25,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687810995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:25,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:25,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:16:25,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550118247] [2024-10-14 17:16:25,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:25,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:25,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:25,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:25,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:25,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 272 [2024-10-14 17:16:25,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 243 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:25,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:25,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 272 [2024-10-14 17:16:25,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:26,304 INFO L124 PetriNetUnfolderBase]: 630/4819 cut-off events. [2024-10-14 17:16:26,304 INFO L125 PetriNetUnfolderBase]: For 775/817 co-relation queries the response was YES. [2024-10-14 17:16:26,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6501 conditions, 4819 events. 630/4819 cut-off events. For 775/817 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 40420 event pairs, 228 based on Foata normal form. 42/4348 useless extension candidates. Maximal degree in co-relation 4159. Up to 682 conditions per place. [2024-10-14 17:16:26,335 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 37 selfloop transitions, 8 changer transitions 0/259 dead transitions. [2024-10-14 17:16:26,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 259 transitions, 698 flow [2024-10-14 17:16:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:26,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-10-14 17:16:26,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2024-10-14 17:16:26,340 INFO L175 Difference]: Start difference. First operand has 240 places, 243 transitions, 552 flow. Second operand 3 states and 736 transitions. [2024-10-14 17:16:26,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 259 transitions, 698 flow [2024-10-14 17:16:26,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 259 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:26,343 INFO L231 Difference]: Finished difference. Result has 241 places, 247 transitions, 578 flow [2024-10-14 17:16:26,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=241, PETRI_TRANSITIONS=247} [2024-10-14 17:16:26,344 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -18 predicate places. [2024-10-14 17:16:26,345 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 247 transitions, 578 flow [2024-10-14 17:16:26,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:26,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:26,345 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] [2024-10-14 17:16:26,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:16:26,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:26,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:26,346 INFO L85 PathProgramCache]: Analyzing trace with hash 631504654, now seen corresponding path program 1 times [2024-10-14 17:16:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759387506] [2024-10-14 17:16:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:26,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759387506] [2024-10-14 17:16:26,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759387506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:26,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:16:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638522989] [2024-10-14 17:16:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:26,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:16:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:16:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:16:26,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 272 [2024-10-14 17:16:26,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 247 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2024-10-14 17:16:26,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:26,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 272 [2024-10-14 17:16:26,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:27,704 INFO L124 PetriNetUnfolderBase]: 1558/7502 cut-off events. [2024-10-14 17:16:27,705 INFO L125 PetriNetUnfolderBase]: For 740/740 co-relation queries the response was YES. [2024-10-14 17:16:27,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11144 conditions, 7502 events. 1558/7502 cut-off events. For 740/740 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 63246 event pairs, 74 based on Foata normal form. 0/6971 useless extension candidates. Maximal degree in co-relation 5065. Up to 2728 conditions per place. [2024-10-14 17:16:27,761 INFO L140 encePairwiseOnDemand]: 266/272 looper letters, 62 selfloop transitions, 6 changer transitions 0/262 dead transitions. [2024-10-14 17:16:27,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 262 transitions, 744 flow [2024-10-14 17:16:27,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:16:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:16:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2024-10-14 17:16:27,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8082107843137255 [2024-10-14 17:16:27,765 INFO L175 Difference]: Start difference. First operand has 241 places, 247 transitions, 578 flow. Second operand 6 states and 1319 transitions. [2024-10-14 17:16:27,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 262 transitions, 744 flow [2024-10-14 17:16:27,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 262 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:16:27,769 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 580 flow [2024-10-14 17:16:27,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-10-14 17:16:27,770 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -15 predicate places. [2024-10-14 17:16:27,770 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 580 flow [2024-10-14 17:16:27,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2024-10-14 17:16:27,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:27,771 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] [2024-10-14 17:16:27,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:16:27,771 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:27,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash 627119402, now seen corresponding path program 1 times [2024-10-14 17:16:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:27,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910353616] [2024-10-14 17:16:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:27,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:27,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910353616] [2024-10-14 17:16:27,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910353616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:27,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:27,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:27,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125282385] [2024-10-14 17:16:27,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:27,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:27,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:27,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:27,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:27,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-10-14 17:16:27,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2024-10-14 17:16:27,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:27,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-10-14 17:16:27,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:28,632 INFO L124 PetriNetUnfolderBase]: 1177/6971 cut-off events. [2024-10-14 17:16:28,632 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-10-14 17:16:28,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9778 conditions, 6971 events. 1177/6971 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 60429 event pairs, 990 based on Foata normal form. 0/6384 useless extension candidates. Maximal degree in co-relation 4376. Up to 2049 conditions per place. [2024-10-14 17:16:28,696 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-10-14 17:16:28,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 249 transitions, 676 flow [2024-10-14 17:16:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:28,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-10-14 17:16:28,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-10-14 17:16:28,698 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 580 flow. Second operand 3 states and 694 transitions. [2024-10-14 17:16:28,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 249 transitions, 676 flow [2024-10-14 17:16:28,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 249 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:16:28,702 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 570 flow [2024-10-14 17:16:28,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2024-10-14 17:16:28,704 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -19 predicate places. [2024-10-14 17:16:28,704 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 570 flow [2024-10-14 17:16:28,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2024-10-14 17:16:28,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:28,705 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-14 17:16:28,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:16:28,705 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:28,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash -258553338, now seen corresponding path program 1 times [2024-10-14 17:16:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:28,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255182918] [2024-10-14 17:16:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:28,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:28,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:28,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255182918] [2024-10-14 17:16:28,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255182918] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:16:28,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185809872] [2024-10-14 17:16:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:28,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:16:28,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:16:28,777 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) [2024-10-14 17:16:28,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:16:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:28,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 17:16:28,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:16:28,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:16:28,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:16:28,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185809872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:28,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:16:28,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 17:16:28,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251129795] [2024-10-14 17:16:28,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:28,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:28,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:28,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:28,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:16:28,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 272 [2024-10-14 17:16:28,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:28,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:28,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 272 [2024-10-14 17:16:28,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:29,526 INFO L124 PetriNetUnfolderBase]: 1177/6926 cut-off events. [2024-10-14 17:16:29,526 INFO L125 PetriNetUnfolderBase]: For 752/752 co-relation queries the response was YES. [2024-10-14 17:16:29,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9695 conditions, 6926 events. 1177/6926 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 59995 event pairs, 990 based on Foata normal form. 0/6336 useless extension candidates. Maximal degree in co-relation 4882. Up to 2049 conditions per place. [2024-10-14 17:16:29,599 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 43 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2024-10-14 17:16:29,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 248 transitions, 666 flow [2024-10-14 17:16:29,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-10-14 17:16:29,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8504901960784313 [2024-10-14 17:16:29,601 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 570 flow. Second operand 3 states and 694 transitions. [2024-10-14 17:16:29,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 248 transitions, 666 flow [2024-10-14 17:16:29,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 248 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:29,605 INFO L231 Difference]: Finished difference. Result has 239 places, 244 transitions, 568 flow [2024-10-14 17:16:29,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=239, PETRI_TRANSITIONS=244} [2024-10-14 17:16:29,606 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -20 predicate places. [2024-10-14 17:16:29,606 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 244 transitions, 568 flow [2024-10-14 17:16:29,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:16:29,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:29,607 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:29,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:16:29,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 17:16:29,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:29,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash 47910380, now seen corresponding path program 1 times [2024-10-14 17:16:29,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:29,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45745603] [2024-10-14 17:16:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:29,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:29,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:29,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:29,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45745603] [2024-10-14 17:16:29,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45745603] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:16:29,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549166501] [2024-10-14 17:16:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:29,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:16:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:16:29,897 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:16:29,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:16:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:29,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:16:29,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:16:30,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:30,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:16:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:30,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549166501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:16:30,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:16:30,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:16:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167314657] [2024-10-14 17:16:30,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:16:30,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:16:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:30,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:16:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:16:30,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2024-10-14 17:16:30,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 244 transitions, 568 flow. Second operand has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 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) [2024-10-14 17:16:30,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:30,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2024-10-14 17:16:30,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:30,441 INFO L124 PetriNetUnfolderBase]: 62/390 cut-off events. [2024-10-14 17:16:30,441 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-14 17:16:30,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 390 events. 62/390 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1457 event pairs, 0 based on Foata normal form. 12/402 useless extension candidates. Maximal degree in co-relation 540. Up to 42 conditions per place. [2024-10-14 17:16:30,443 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 29 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2024-10-14 17:16:30,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 248 flow [2024-10-14 17:16:30,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:16:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:16:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2027 transitions. [2024-10-14 17:16:30,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8280228758169934 [2024-10-14 17:16:30,447 INFO L175 Difference]: Start difference. First operand has 239 places, 244 transitions, 568 flow. Second operand 9 states and 2027 transitions. [2024-10-14 17:16:30,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 248 flow [2024-10-14 17:16:30,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:16:30,448 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 150 flow [2024-10-14 17:16:30,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-10-14 17:16:30,449 INFO L277 CegarLoopForPetriNet]: 259 programPoint places, -184 predicate places. [2024-10-14 17:16:30,449 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 150 flow [2024-10-14 17:16:30,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 223.3) internal successors, (2233), 10 states have internal predecessors, (2233), 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) [2024-10-14 17:16:30,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:30,451 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-14 17:16:30,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:16:30,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:16:30,654 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-10-14 17:16:30,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash 964841816, now seen corresponding path program 1 times [2024-10-14 17:16:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:30,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695434257] [2024-10-14 17:16:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:16:30,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:16:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:16:30,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:16:30,711 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:16:30,711 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-10-14 17:16:30,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-10-14 17:16:30,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-10-14 17:16:30,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-10-14 17:16:30,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-10-14 17:16:30,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-10-14 17:16:30,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2024-10-14 17:16:30,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-10-14 17:16:30,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-10-14 17:16:30,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-10-14 17:16:30,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-10-14 17:16:30,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-10-14 17:16:30,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-10-14 17:16:30,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-10-14 17:16:30,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-10-14 17:16:30,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-10-14 17:16:30,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-10-14 17:16:30,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-10-14 17:16:30,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-10-14 17:16:30,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-10-14 17:16:30,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-10-14 17:16:30,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-10-14 17:16:30,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-10-14 17:16:30,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-10-14 17:16:30,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:16:30,718 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:16:30,718 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 17:16:30,719 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-14 17:16:30,765 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-10-14 17:16:30,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 326 transitions, 724 flow [2024-10-14 17:16:31,679 INFO L124 PetriNetUnfolderBase]: 544/5934 cut-off events. [2024-10-14 17:16:31,679 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-10-14 17:16:31,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 5934 events. 544/5934 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 46621 event pairs, 64 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 3413. Up to 192 conditions per place. [2024-10-14 17:16:31,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 326 transitions, 724 flow [2024-10-14 17:16:31,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 326 transitions, 724 flow [2024-10-14 17:16:31,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:16:31,844 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;@7b1024d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:16:31,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-14 17:16:31,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:16:31,850 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-14 17:16:31,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:16:31,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:31,850 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] [2024-10-14 17:16:31,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 17:16:31,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:31,851 INFO L85 PathProgramCache]: Analyzing trace with hash 292481358, now seen corresponding path program 1 times [2024-10-14 17:16:31,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:31,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097418453] [2024-10-14 17:16:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:31,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:31,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:31,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:31,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097418453] [2024-10-14 17:16:31,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097418453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:31,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:31,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:31,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250443724] [2024-10-14 17:16:31,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:31,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:31,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 326 [2024-10-14 17:16:31,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 326 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2024-10-14 17:16:31,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:31,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 326 [2024-10-14 17:16:31,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:40,977 INFO L124 PetriNetUnfolderBase]: 12815/49237 cut-off events. [2024-10-14 17:16:40,978 INFO L125 PetriNetUnfolderBase]: For 7831/8377 co-relation queries the response was YES. [2024-10-14 17:16:41,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71260 conditions, 49237 events. 12815/49237 cut-off events. For 7831/8377 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 571396 event pairs, 10886 based on Foata normal form. 19499/60616 useless extension candidates. Maximal degree in co-relation 36872. Up to 19303 conditions per place. [2024-10-14 17:16:41,902 INFO L140 encePairwiseOnDemand]: 307/326 looper letters, 47 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2024-10-14 17:16:41,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 303 transitions, 776 flow [2024-10-14 17:16:41,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:41,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2024-10-14 17:16:41,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8558282208588958 [2024-10-14 17:16:41,904 INFO L175 Difference]: Start difference. First operand has 308 places, 326 transitions, 724 flow. Second operand 3 states and 837 transitions. [2024-10-14 17:16:41,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 303 transitions, 776 flow [2024-10-14 17:16:41,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 303 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:16:41,914 INFO L231 Difference]: Finished difference. Result has 297 places, 303 transitions, 682 flow [2024-10-14 17:16:41,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=297, PETRI_TRANSITIONS=303} [2024-10-14 17:16:41,916 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -11 predicate places. [2024-10-14 17:16:41,916 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 303 transitions, 682 flow [2024-10-14 17:16:41,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2024-10-14 17:16:41,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:41,916 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] [2024-10-14 17:16:41,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:16:41,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 17:16:41,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:41,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1175482534, now seen corresponding path program 1 times [2024-10-14 17:16:41,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:41,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970359879] [2024-10-14 17:16:41,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:41,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:41,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970359879] [2024-10-14 17:16:41,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970359879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:41,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:41,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:16:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119040370] [2024-10-14 17:16:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:41,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:41,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:41,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:41,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:41,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 326 [2024-10-14 17:16:41,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 303 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2024-10-14 17:16:41,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:41,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 326 [2024-10-14 17:16:41,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:51,898 INFO L124 PetriNetUnfolderBase]: 17515/54770 cut-off events. [2024-10-14 17:16:51,898 INFO L125 PetriNetUnfolderBase]: For 7723/8171 co-relation queries the response was YES. [2024-10-14 17:16:52,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84337 conditions, 54770 events. 17515/54770 cut-off events. For 7723/8171 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 595268 event pairs, 12762 based on Foata normal form. 0/49554 useless extension candidates. Maximal degree in co-relation 84304. Up to 22195 conditions per place. [2024-10-14 17:16:53,347 INFO L140 encePairwiseOnDemand]: 303/326 looper letters, 51 selfloop transitions, 11 changer transitions 0/297 dead transitions. [2024-10-14 17:16:53,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 297 transitions, 794 flow [2024-10-14 17:16:53,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:16:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:16:53,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2024-10-14 17:16:53,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8087934560327198 [2024-10-14 17:16:53,350 INFO L175 Difference]: Start difference. First operand has 297 places, 303 transitions, 682 flow. Second operand 3 states and 791 transitions. [2024-10-14 17:16:53,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 297 transitions, 794 flow [2024-10-14 17:16:53,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 297 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:16:53,366 INFO L231 Difference]: Finished difference. Result has 285 places, 291 transitions, 676 flow [2024-10-14 17:16:53,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=285, PETRI_TRANSITIONS=291} [2024-10-14 17:16:53,367 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -23 predicate places. [2024-10-14 17:16:53,367 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 291 transitions, 676 flow [2024-10-14 17:16:53,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2024-10-14 17:16:53,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:16:53,367 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] [2024-10-14 17:16:53,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:16:53,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 17:16:53,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:16:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash -75841800, now seen corresponding path program 1 times [2024-10-14 17:16:53,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:16:53,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956180475] [2024-10-14 17:16:53,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:16:53,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:16:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:16:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:16:53,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:16:53,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956180475] [2024-10-14 17:16:53,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956180475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:16:53,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:16:53,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:16:53,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892817267] [2024-10-14 17:16:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:16:53,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:16:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:16:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:16:53,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 326 [2024-10-14 17:16:53,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 291 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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) [2024-10-14 17:16:53,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:16:53,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 326 [2024-10-14 17:16:53,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:16:59,401 INFO L124 PetriNetUnfolderBase]: 8365/37765 cut-off events. [2024-10-14 17:16:59,401 INFO L125 PetriNetUnfolderBase]: For 10106/10660 co-relation queries the response was YES. [2024-10-14 17:16:59,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55596 conditions, 37765 events. 8365/37765 cut-off events. For 10106/10660 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 459389 event pairs, 3344 based on Foata normal form. 300/33765 useless extension candidates. Maximal degree in co-relation 37121. Up to 8245 conditions per place. [2024-10-14 17:17:00,130 INFO L140 encePairwiseOnDemand]: 314/326 looper letters, 51 selfloop transitions, 8 changer transitions 0/313 dead transitions. [2024-10-14 17:17:00,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 313 transitions, 874 flow [2024-10-14 17:17:00,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:17:00,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:17:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2024-10-14 17:17:00,136 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8926380368098159 [2024-10-14 17:17:00,136 INFO L175 Difference]: Start difference. First operand has 285 places, 291 transitions, 676 flow. Second operand 3 states and 873 transitions. [2024-10-14 17:17:00,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 313 transitions, 874 flow [2024-10-14 17:17:00,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 313 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:17:00,158 INFO L231 Difference]: Finished difference. Result has 286 places, 295 transitions, 702 flow [2024-10-14 17:17:00,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=286, PETRI_TRANSITIONS=295} [2024-10-14 17:17:00,159 INFO L277 CegarLoopForPetriNet]: 308 programPoint places, -22 predicate places. [2024-10-14 17:17:00,159 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 295 transitions, 702 flow [2024-10-14 17:17:00,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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) [2024-10-14 17:17:00,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:17:00,160 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] [2024-10-14 17:17:00,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:17:00,161 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 17:17:00,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:17:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash -639082542, now seen corresponding path program 1 times [2024-10-14 17:17:00,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:17:00,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151513437] [2024-10-14 17:17:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:17:00,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:17:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:17:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:17:00,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:17:00,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151513437] [2024-10-14 17:17:00,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151513437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:17:00,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:17:00,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:17:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50083436] [2024-10-14 17:17:00,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:17:00,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:17:00,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:17:00,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:17:00,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:17:00,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 326 [2024-10-14 17:17:00,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 295 transitions, 702 flow. Second operand has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 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) [2024-10-14 17:17:00,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:17:00,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 326 [2024-10-14 17:17:00,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:17:12,528 INFO L124 PetriNetUnfolderBase]: 19159/64405 cut-off events. [2024-10-14 17:17:12,528 INFO L125 PetriNetUnfolderBase]: For 9276/9276 co-relation queries the response was YES. [2024-10-14 17:17:13,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101733 conditions, 64405 events. 19159/64405 cut-off events. For 9276/9276 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 749158 event pairs, 801 based on Foata normal form. 0/60778 useless extension candidates. Maximal degree in co-relation 49665. Up to 29355 conditions per place.