./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:07:54,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:07:54,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:07:54,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:07:54,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:07:54,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:07:54,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:07:54,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:07:54,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:07:54,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:07:54,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:07:54,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:07:54,109 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:07:54,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:07:54,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:07:54,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:07:54,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:07:54,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:07:54,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:07:54,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:07:54,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:07:54,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:07:54,112 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:07:54,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:07:54,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:07:54,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:07:54,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:07:54,113 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:07:54,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:07:54,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:07:54,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:07:54,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:54,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:07:54,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:07:54,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:07:54,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:07:54,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:07:54,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:07:54,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:07:54,116 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:07:54,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:07:54,116 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-10-11 17:07:54,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:07:54,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:07:54,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:07:54,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:07:54,335 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:07:54,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-10-11 17:07:55,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:07:55,800 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:07:55,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-10-11 17:07:55,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/30af20402/c5c6dd2d7a1b41a3946e482d4d97a0c6/FLAG4cebee2d5 [2024-10-11 17:07:55,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/30af20402/c5c6dd2d7a1b41a3946e482d4d97a0c6 [2024-10-11 17:07:55,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:07:55,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:07:55,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:07:55,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:07:55,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:07:55,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:55" (1/1) ... [2024-10-11 17:07:55,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15791add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:55, skipping insertion in model container [2024-10-11 17:07:55,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:07:55" (1/1) ... [2024-10-11 17:07:55,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:07:56,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:07:56,343 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:07:56,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:07:56,439 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:07:56,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56 WrapperNode [2024-10-11 17:07:56,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:07:56,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:07:56,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:07:56,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:07:56,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,513 INFO L138 Inliner]: procedures = 368, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 234 [2024-10-11 17:07:56,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:07:56,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:07:56,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:07:56,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:07:56,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:07:56,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:07:56,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:07:56,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:07:56,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (1/1) ... [2024-10-11 17:07:56,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:07:56,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:07:56,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:07:56,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:07:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:07:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:07:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:07:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:07:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:07:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:07:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:07:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:07:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:07:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:07:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:07:56,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:07:56,642 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:07:56,751 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:07:56,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:07:57,151 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:07:57,152 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:07:57,176 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:07:57,176 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 17:07:57,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:57 BoogieIcfgContainer [2024-10-11 17:07:57,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:07:57,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:07:57,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:07:57,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:07:57,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:07:55" (1/3) ... [2024-10-11 17:07:57,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c190423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:57, skipping insertion in model container [2024-10-11 17:07:57,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:07:56" (2/3) ... [2024-10-11 17:07:57,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c190423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:07:57, skipping insertion in model container [2024-10-11 17:07:57,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:07:57" (3/3) ... [2024-10-11 17:07:57,184 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-10-11 17:07:57,201 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:07:57,201 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-11 17:07:57,201 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:07:57,267 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:07:57,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 266 transitions, 536 flow [2024-10-11 17:07:57,387 INFO L124 PetriNetUnfolderBase]: 6/265 cut-off events. [2024-10-11 17:07:57,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:57,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 265 events. 6/265 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 417 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2024-10-11 17:07:57,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 266 transitions, 536 flow [2024-10-11 17:07:57,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 265 transitions, 533 flow [2024-10-11 17:07:57,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:07:57,414 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;@435a24a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:07:57,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-11 17:07:57,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:07:57,428 INFO L124 PetriNetUnfolderBase]: 3/65 cut-off events. [2024-10-11 17:07:57,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:57,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:57,429 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] [2024-10-11 17:07:57,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:07:57,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:57,433 INFO L85 PathProgramCache]: Analyzing trace with hash -154833977, now seen corresponding path program 1 times [2024-10-11 17:07:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:57,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705505809] [2024-10-11 17:07:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:57,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:57,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705505809] [2024-10-11 17:07:57,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705505809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:57,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:57,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:57,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013566418] [2024-10-11 17:07:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:57,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:57,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:58,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 266 [2024-10-11 17:07:58,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 265 transitions, 533 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2024-10-11 17:07:58,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:58,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 266 [2024-10-11 17:07:58,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:59,148 INFO L124 PetriNetUnfolderBase]: 1265/4858 cut-off events. [2024-10-11 17:07:59,149 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:59,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7402 conditions, 4858 events. 1265/4858 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36286 event pairs, 912 based on Foata normal form. 137/4585 useless extension candidates. Maximal degree in co-relation 7320. Up to 2359 conditions per place. [2024-10-11 17:07:59,166 INFO L140 encePairwiseOnDemand]: 226/266 looper letters, 84 selfloop transitions, 107 changer transitions 0/370 dead transitions. [2024-10-11 17:07:59,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 370 transitions, 1125 flow [2024-10-11 17:07:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:59,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1280 transitions. [2024-10-11 17:07:59,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8020050125313283 [2024-10-11 17:07:59,180 INFO L175 Difference]: Start difference. First operand has 263 places, 265 transitions, 533 flow. Second operand 6 states and 1280 transitions. [2024-10-11 17:07:59,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 370 transitions, 1125 flow [2024-10-11 17:07:59,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 370 transitions, 1124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:59,193 INFO L231 Difference]: Finished difference. Result has 271 places, 362 transitions, 1214 flow [2024-10-11 17:07:59,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1214, PETRI_PLACES=271, PETRI_TRANSITIONS=362} [2024-10-11 17:07:59,200 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 8 predicate places. [2024-10-11 17:07:59,200 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 362 transitions, 1214 flow [2024-10-11 17:07:59,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2024-10-11 17:07:59,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:59,201 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] [2024-10-11 17:07:59,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:07:59,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:07:59,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2011066990, now seen corresponding path program 1 times [2024-10-11 17:07:59,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:59,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193712931] [2024-10-11 17:07:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:59,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:59,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193712931] [2024-10-11 17:07:59,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193712931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:59,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:59,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:59,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939311895] [2024-10-11 17:07:59,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:59,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:59,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:59,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:59,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 266 [2024-10-11 17:07:59,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 362 transitions, 1214 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2024-10-11 17:07:59,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:59,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 266 [2024-10-11 17:07:59,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:00,557 INFO L124 PetriNetUnfolderBase]: 1531/5742 cut-off events. [2024-10-11 17:08:00,558 INFO L125 PetriNetUnfolderBase]: For 1214/1217 co-relation queries the response was YES. [2024-10-11 17:08:00,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10534 conditions, 5742 events. 1531/5742 cut-off events. For 1214/1217 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 44112 event pairs, 936 based on Foata normal form. 0/5299 useless extension candidates. Maximal degree in co-relation 10439. Up to 2637 conditions per place. [2024-10-11 17:08:00,580 INFO L140 encePairwiseOnDemand]: 229/266 looper letters, 180 selfloop transitions, 107 changer transitions 0/470 dead transitions. [2024-10-11 17:08:00,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 470 transitions, 2196 flow [2024-10-11 17:08:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2024-10-11 17:08:00,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7976190476190477 [2024-10-11 17:08:00,583 INFO L175 Difference]: Start difference. First operand has 271 places, 362 transitions, 1214 flow. Second operand 6 states and 1273 transitions. [2024-10-11 17:08:00,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 470 transitions, 2196 flow [2024-10-11 17:08:00,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 470 transitions, 2196 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:00,599 INFO L231 Difference]: Finished difference. Result has 280 places, 462 transitions, 2094 flow [2024-10-11 17:08:00,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=280, PETRI_TRANSITIONS=462} [2024-10-11 17:08:00,600 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 17 predicate places. [2024-10-11 17:08:00,600 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 462 transitions, 2094 flow [2024-10-11 17:08:00,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2024-10-11 17:08:00,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:00,601 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] [2024-10-11 17:08:00,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:08:00,601 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:00,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:00,602 INFO L85 PathProgramCache]: Analyzing trace with hash -34583309, now seen corresponding path program 1 times [2024-10-11 17:08:00,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:00,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183912801] [2024-10-11 17:08:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:00,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:00,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:00,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183912801] [2024-10-11 17:08:00,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183912801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:00,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:00,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:08:00,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822779560] [2024-10-11 17:08:00,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:00,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:08:00,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:00,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:08:00,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:08:00,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 266 [2024-10-11 17:08:00,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 462 transitions, 2094 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:00,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:00,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 266 [2024-10-11 17:08:00,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:01,223 INFO L124 PetriNetUnfolderBase]: 1081/4368 cut-off events. [2024-10-11 17:08:01,223 INFO L125 PetriNetUnfolderBase]: For 1114/1120 co-relation queries the response was YES. [2024-10-11 17:08:01,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8778 conditions, 4368 events. 1081/4368 cut-off events. For 1114/1120 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28457 event pairs, 108 based on Foata normal form. 4/4126 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2024-10-11 17:08:01,239 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 16 selfloop transitions, 4 changer transitions 0/468 dead transitions. [2024-10-11 17:08:01,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 468 transitions, 2146 flow [2024-10-11 17:08:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:08:01,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:08:01,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2024-10-11 17:08:01,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9636591478696742 [2024-10-11 17:08:01,241 INFO L175 Difference]: Start difference. First operand has 280 places, 462 transitions, 2094 flow. Second operand 3 states and 769 transitions. [2024-10-11 17:08:01,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 468 transitions, 2146 flow [2024-10-11 17:08:01,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 468 transitions, 1954 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:01,253 INFO L231 Difference]: Finished difference. Result has 283 places, 464 transitions, 1926 flow [2024-10-11 17:08:01,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1902, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1926, PETRI_PLACES=283, PETRI_TRANSITIONS=464} [2024-10-11 17:08:01,254 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 20 predicate places. [2024-10-11 17:08:01,254 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 464 transitions, 1926 flow [2024-10-11 17:08:01,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:01,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:01,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:01,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:08:01,255 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:01,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1115785085, now seen corresponding path program 1 times [2024-10-11 17:08:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:01,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562628129] [2024-10-11 17:08:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:01,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:01,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:01,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562628129] [2024-10-11 17:08:01,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562628129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:01,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:01,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:08:01,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139251203] [2024-10-11 17:08:01,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:01,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:01,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:01,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:01,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:08:01,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 266 [2024-10-11 17:08:01,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 464 transitions, 1926 flow. Second operand has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2024-10-11 17:08:01,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:01,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 266 [2024-10-11 17:08:01,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:03,264 INFO L124 PetriNetUnfolderBase]: 2970/10628 cut-off events. [2024-10-11 17:08:03,264 INFO L125 PetriNetUnfolderBase]: For 6046/6161 co-relation queries the response was YES. [2024-10-11 17:08:03,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23684 conditions, 10628 events. 2970/10628 cut-off events. For 6046/6161 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84584 event pairs, 1872 based on Foata normal form. 0/10087 useless extension candidates. Maximal degree in co-relation 23486. Up to 5591 conditions per place. [2024-10-11 17:08:03,311 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 285 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2024-10-11 17:08:03,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 463 transitions, 2504 flow [2024-10-11 17:08:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:03,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:03,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1123 transitions. [2024-10-11 17:08:03,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7036340852130326 [2024-10-11 17:08:03,314 INFO L175 Difference]: Start difference. First operand has 283 places, 464 transitions, 1926 flow. Second operand 6 states and 1123 transitions. [2024-10-11 17:08:03,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 463 transitions, 2504 flow [2024-10-11 17:08:03,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 463 transitions, 2500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:03,326 INFO L231 Difference]: Finished difference. Result has 286 places, 463 transitions, 1930 flow [2024-10-11 17:08:03,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1920, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1930, PETRI_PLACES=286, PETRI_TRANSITIONS=463} [2024-10-11 17:08:03,327 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 23 predicate places. [2024-10-11 17:08:03,327 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 463 transitions, 1930 flow [2024-10-11 17:08:03,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2024-10-11 17:08:03,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:03,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:03,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:08:03,328 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:03,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:03,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1448263889, now seen corresponding path program 1 times [2024-10-11 17:08:03,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:03,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305927384] [2024-10-11 17:08:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:03,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:03,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305927384] [2024-10-11 17:08:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305927384] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542970732] [2024-10-11 17:08:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:03,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:03,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:03,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:03,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:08:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:03,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:08:03,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:03,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:03,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542970732] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:03,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:03,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:08:03,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954173878] [2024-10-11 17:08:03,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:03,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:08:03,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:03,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:08:03,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:08:03,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 266 [2024-10-11 17:08:03,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 463 transitions, 1930 flow. Second operand has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 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) [2024-10-11 17:08:03,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:03,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 266 [2024-10-11 17:08:03,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:04,512 INFO L124 PetriNetUnfolderBase]: 1085/4413 cut-off events. [2024-10-11 17:08:04,513 INFO L125 PetriNetUnfolderBase]: For 677/683 co-relation queries the response was YES. [2024-10-11 17:08:04,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8658 conditions, 4413 events. 1085/4413 cut-off events. For 677/683 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 28388 event pairs, 102 based on Foata normal form. 2/4169 useless extension candidates. Maximal degree in co-relation 8420. Up to 898 conditions per place. [2024-10-11 17:08:04,530 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 22 selfloop transitions, 13 changer transitions 0/478 dead transitions. [2024-10-11 17:08:04,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 478 transitions, 2032 flow [2024-10-11 17:08:04,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:08:04,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:08:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2242 transitions. [2024-10-11 17:08:04,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9365079365079365 [2024-10-11 17:08:04,534 INFO L175 Difference]: Start difference. First operand has 286 places, 463 transitions, 1930 flow. Second operand 9 states and 2242 transitions. [2024-10-11 17:08:04,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 478 transitions, 2032 flow [2024-10-11 17:08:04,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 478 transitions, 2022 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:08:04,545 INFO L231 Difference]: Finished difference. Result has 292 places, 470 transitions, 1988 flow [2024-10-11 17:08:04,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1920, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1988, PETRI_PLACES=292, PETRI_TRANSITIONS=470} [2024-10-11 17:08:04,546 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 29 predicate places. [2024-10-11 17:08:04,546 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 470 transitions, 1988 flow [2024-10-11 17:08:04,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 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) [2024-10-11 17:08:04,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:04,549 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:04,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:08:04,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:04,750 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:04,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:04,750 INFO L85 PathProgramCache]: Analyzing trace with hash -218334289, now seen corresponding path program 2 times [2024-10-11 17:08:04,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:04,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303184112] [2024-10-11 17:08:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:04,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:05,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:05,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303184112] [2024-10-11 17:08:05,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303184112] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:05,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477388457] [2024-10-11 17:08:05,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:05,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:05,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:05,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:08:05,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:05,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:05,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:08:05,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:05,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:08:05,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 17:08:05,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:05,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-11 17:08:05,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:05,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-11 17:08:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-11 17:08:05,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:05,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477388457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:05,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:05,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-11 17:08:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263507600] [2024-10-11 17:08:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:05,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:08:05,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 266 [2024-10-11 17:08:05,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 470 transitions, 1988 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2024-10-11 17:08:05,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:05,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 266 [2024-10-11 17:08:05,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:07,788 INFO L124 PetriNetUnfolderBase]: 3572/12246 cut-off events. [2024-10-11 17:08:07,788 INFO L125 PetriNetUnfolderBase]: For 5298/5380 co-relation queries the response was YES. [2024-10-11 17:08:07,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26760 conditions, 12246 events. 3572/12246 cut-off events. For 5298/5380 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 98020 event pairs, 1616 based on Foata normal form. 0/11490 useless extension candidates. Maximal degree in co-relation 26484. Up to 6064 conditions per place. [2024-10-11 17:08:07,853 INFO L140 encePairwiseOnDemand]: 223/266 looper letters, 245 selfloop transitions, 170 changer transitions 0/639 dead transitions. [2024-10-11 17:08:07,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 639 transitions, 3296 flow [2024-10-11 17:08:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:07,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1336 transitions. [2024-10-11 17:08:07,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370927318295739 [2024-10-11 17:08:07,857 INFO L175 Difference]: Start difference. First operand has 292 places, 470 transitions, 1988 flow. Second operand 6 states and 1336 transitions. [2024-10-11 17:08:07,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 639 transitions, 3296 flow [2024-10-11 17:08:07,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 639 transitions, 3286 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-10-11 17:08:07,881 INFO L231 Difference]: Finished difference. Result has 301 places, 631 transitions, 3228 flow [2024-10-11 17:08:07,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1978, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3228, PETRI_PLACES=301, PETRI_TRANSITIONS=631} [2024-10-11 17:08:07,883 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 38 predicate places. [2024-10-11 17:08:07,884 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 631 transitions, 3228 flow [2024-10-11 17:08:07,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2024-10-11 17:08:07,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:07,885 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:07,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:08:08,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:08,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:08,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:08,091 INFO L85 PathProgramCache]: Analyzing trace with hash -303521228, now seen corresponding path program 1 times [2024-10-11 17:08:08,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:08,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359554556] [2024-10-11 17:08:08,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:08,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:08,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:08,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359554556] [2024-10-11 17:08:08,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359554556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:08,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406181742] [2024-10-11 17:08:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:08,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:08,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:08,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:08,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:08:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:08,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:08:08,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:08,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406181742] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:08,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:08,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:08:08,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616778478] [2024-10-11 17:08:08,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:08,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:08:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:08:08,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:08:09,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 266 [2024-10-11 17:08:09,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 631 transitions, 3228 flow. Second operand has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 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) [2024-10-11 17:08:09,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:09,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 266 [2024-10-11 17:08:09,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:10,324 INFO L124 PetriNetUnfolderBase]: 1787/6882 cut-off events. [2024-10-11 17:08:10,324 INFO L125 PetriNetUnfolderBase]: For 3086/3189 co-relation queries the response was YES. [2024-10-11 17:08:10,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15997 conditions, 6882 events. 1787/6882 cut-off events. For 3086/3189 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 48178 event pairs, 166 based on Foata normal form. 4/6578 useless extension candidates. Maximal degree in co-relation 15454. Up to 1392 conditions per place. [2024-10-11 17:08:10,362 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 26 selfloop transitions, 25 changer transitions 0/655 dead transitions. [2024-10-11 17:08:10,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 655 transitions, 3430 flow [2024-10-11 17:08:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:08:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:08:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5200 transitions. [2024-10-11 17:08:10,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9308986752595775 [2024-10-11 17:08:10,370 INFO L175 Difference]: Start difference. First operand has 301 places, 631 transitions, 3228 flow. Second operand 21 states and 5200 transitions. [2024-10-11 17:08:10,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 655 transitions, 3430 flow [2024-10-11 17:08:10,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 655 transitions, 3394 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:10,405 INFO L231 Difference]: Finished difference. Result has 326 places, 644 transitions, 3336 flow [2024-10-11 17:08:10,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3192, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3336, PETRI_PLACES=326, PETRI_TRANSITIONS=644} [2024-10-11 17:08:10,406 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 63 predicate places. [2024-10-11 17:08:10,406 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 644 transitions, 3336 flow [2024-10-11 17:08:10,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 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) [2024-10-11 17:08:10,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:10,409 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:10,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:08:10,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:10,614 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:10,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:10,615 INFO L85 PathProgramCache]: Analyzing trace with hash 4700980, now seen corresponding path program 2 times [2024-10-11 17:08:10,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:10,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561777052] [2024-10-11 17:08:10,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:10,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:11,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561777052] [2024-10-11 17:08:11,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561777052] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419647337] [2024-10-11 17:08:11,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:08:11,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:11,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:11,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:11,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:08:11,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:08:11,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:08:11,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:08:11,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:11,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 17:08:11,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 17:08:11,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:11,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 17:08:11,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:08:11,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 17:08:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-10-11 17:08:11,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:08:11,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419647337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:11,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:08:11,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:08:11,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245616547] [2024-10-11 17:08:11,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:11,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:08:11,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:11,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:08:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:08:11,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 266 [2024-10-11 17:08:11,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 644 transitions, 3336 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2024-10-11 17:08:11,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:11,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 266 [2024-10-11 17:08:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:14,723 INFO L124 PetriNetUnfolderBase]: 4263/14617 cut-off events. [2024-10-11 17:08:14,724 INFO L125 PetriNetUnfolderBase]: For 10432/10581 co-relation queries the response was YES. [2024-10-11 17:08:14,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36948 conditions, 14617 events. 4263/14617 cut-off events. For 10432/10581 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 119277 event pairs, 1677 based on Foata normal form. 0/13817 useless extension candidates. Maximal degree in co-relation 36312. Up to 6897 conditions per place. [2024-10-11 17:08:14,787 INFO L140 encePairwiseOnDemand]: 223/266 looper letters, 395 selfloop transitions, 170 changer transitions 0/813 dead transitions. [2024-10-11 17:08:14,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 813 transitions, 5244 flow [2024-10-11 17:08:14,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:08:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:08:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1336 transitions. [2024-10-11 17:08:14,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370927318295739 [2024-10-11 17:08:14,790 INFO L175 Difference]: Start difference. First operand has 326 places, 644 transitions, 3336 flow. Second operand 6 states and 1336 transitions. [2024-10-11 17:08:14,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 813 transitions, 5244 flow [2024-10-11 17:08:14,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 813 transitions, 5218 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 17:08:14,833 INFO L231 Difference]: Finished difference. Result has 330 places, 805 transitions, 4860 flow [2024-10-11 17:08:14,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3310, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4860, PETRI_PLACES=330, PETRI_TRANSITIONS=805} [2024-10-11 17:08:14,834 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 67 predicate places. [2024-10-11 17:08:14,835 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 805 transitions, 4860 flow [2024-10-11 17:08:14,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2024-10-11 17:08:14,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:14,836 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:14,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:08:15,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 17:08:15,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:15,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1236477007, now seen corresponding path program 1 times [2024-10-11 17:08:15,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:15,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669718382] [2024-10-11 17:08:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:15,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:15,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:15,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669718382] [2024-10-11 17:08:15,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669718382] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:08:15,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351954271] [2024-10-11 17:08:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:15,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:15,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:08:15,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:08:15,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:08:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:16,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:08:16,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:08:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:16,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:08:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351954271] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:08:16,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:08:16,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-11 17:08:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889478691] [2024-10-11 17:08:16,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:08:16,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:08:16,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:16,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:08:16,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:08:17,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 266 [2024-10-11 17:08:17,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 805 transitions, 4860 flow. Second operand has 23 states, 23 states have (on average 247.2173913043478) internal successors, (5686), 23 states have internal predecessors, (5686), 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) [2024-10-11 17:08:17,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:17,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 266 [2024-10-11 17:08:17,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:19,192 INFO L124 PetriNetUnfolderBase]: 2478/9313 cut-off events. [2024-10-11 17:08:19,192 INFO L125 PetriNetUnfolderBase]: For 7346/7496 co-relation queries the response was YES. [2024-10-11 17:08:19,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24502 conditions, 9313 events. 2478/9313 cut-off events. For 7346/7496 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 68886 event pairs, 229 based on Foata normal form. 3/8942 useless extension candidates. Maximal degree in co-relation 23696. Up to 2110 conditions per place. [2024-10-11 17:08:19,243 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 29 selfloop transitions, 34 changer transitions 0/828 dead transitions. [2024-10-11 17:08:19,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 828 transitions, 5120 flow [2024-10-11 17:08:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:08:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:08:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7416 transitions. [2024-10-11 17:08:19,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9293233082706767 [2024-10-11 17:08:19,255 INFO L175 Difference]: Start difference. First operand has 330 places, 805 transitions, 4860 flow. Second operand 30 states and 7416 transitions. [2024-10-11 17:08:19,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 828 transitions, 5120 flow [2024-10-11 17:08:19,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 828 transitions, 4784 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-10-11 17:08:19,316 INFO L231 Difference]: Finished difference. Result has 363 places, 815 transitions, 4690 flow [2024-10-11 17:08:19,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4524, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=778, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4690, PETRI_PLACES=363, PETRI_TRANSITIONS=815} [2024-10-11 17:08:19,317 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 100 predicate places. [2024-10-11 17:08:19,317 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 815 transitions, 4690 flow [2024-10-11 17:08:19,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 247.2173913043478) internal successors, (5686), 23 states have internal predecessors, (5686), 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) [2024-10-11 17:08:19,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:19,319 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:19,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:08:19,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:08:19,520 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:19,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:19,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1283058871, now seen corresponding path program 2 times [2024-10-11 17:08:19,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:19,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325529318] [2024-10-11 17:08:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-11 17:08:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325529318] [2024-10-11 17:08:20,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325529318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:20,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:20,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 17:08:20,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110291710] [2024-10-11 17:08:20,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:20,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 17:08:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 17:08:20,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-11 17:08:21,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-11 17:08:21,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 815 transitions, 4690 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:21,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:21,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-11 17:08:21,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:26,276 INFO L124 PetriNetUnfolderBase]: 4877/16010 cut-off events. [2024-10-11 17:08:26,276 INFO L125 PetriNetUnfolderBase]: For 17242/17685 co-relation queries the response was YES. [2024-10-11 17:08:26,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46619 conditions, 16010 events. 4877/16010 cut-off events. For 17242/17685 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 129174 event pairs, 1704 based on Foata normal form. 20/15308 useless extension candidates. Maximal degree in co-relation 45651. Up to 5419 conditions per place. [2024-10-11 17:08:26,471 INFO L140 encePairwiseOnDemand]: 218/266 looper letters, 591 selfloop transitions, 145 changer transitions 0/983 dead transitions. [2024-10-11 17:08:26,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 983 transitions, 7144 flow [2024-10-11 17:08:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 17:08:26,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 17:08:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2384 transitions. [2024-10-11 17:08:26,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468671679197995 [2024-10-11 17:08:26,476 INFO L175 Difference]: Start difference. First operand has 363 places, 815 transitions, 4690 flow. Second operand 12 states and 2384 transitions. [2024-10-11 17:08:26,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 983 transitions, 7144 flow [2024-10-11 17:08:26,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 983 transitions, 7096 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-11 17:08:26,543 INFO L231 Difference]: Finished difference. Result has 361 places, 834 transitions, 5268 flow [2024-10-11 17:08:26,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4642, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5268, PETRI_PLACES=361, PETRI_TRANSITIONS=834} [2024-10-11 17:08:26,544 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 98 predicate places. [2024-10-11 17:08:26,544 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 834 transitions, 5268 flow [2024-10-11 17:08:26,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:26,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:26,545 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:26,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:08:26,545 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:26,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:26,546 INFO L85 PathProgramCache]: Analyzing trace with hash -418414245, now seen corresponding path program 3 times [2024-10-11 17:08:26,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:26,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340891025] [2024-10-11 17:08:26,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:26,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-11 17:08:27,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:27,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340891025] [2024-10-11 17:08:27,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340891025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:27,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:27,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 17:08:27,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631618907] [2024-10-11 17:08:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:27,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 17:08:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 17:08:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 17:08:28,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-11 17:08:28,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 834 transitions, 5268 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:28,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:28,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-11 17:08:28,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:33,967 INFO L124 PetriNetUnfolderBase]: 5770/18200 cut-off events. [2024-10-11 17:08:33,967 INFO L125 PetriNetUnfolderBase]: For 24453/24623 co-relation queries the response was YES. [2024-10-11 17:08:34,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57739 conditions, 18200 events. 5770/18200 cut-off events. For 24453/24623 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 148331 event pairs, 1608 based on Foata normal form. 82/17605 useless extension candidates. Maximal degree in co-relation 56668. Up to 4534 conditions per place. [2024-10-11 17:08:34,058 INFO L140 encePairwiseOnDemand]: 225/266 looper letters, 868 selfloop transitions, 148 changer transitions 0/1263 dead transitions. [2024-10-11 17:08:34,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 1263 transitions, 10718 flow [2024-10-11 17:08:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 17:08:34,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-11 17:08:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4281 transitions. [2024-10-11 17:08:34,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6997384766263485 [2024-10-11 17:08:34,061 INFO L175 Difference]: Start difference. First operand has 361 places, 834 transitions, 5268 flow. Second operand 23 states and 4281 transitions. [2024-10-11 17:08:34,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 1263 transitions, 10718 flow [2024-10-11 17:08:34,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 1263 transitions, 10504 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-11 17:08:34,154 INFO L231 Difference]: Finished difference. Result has 394 places, 963 transitions, 6932 flow [2024-10-11 17:08:34,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5152, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=834, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6932, PETRI_PLACES=394, PETRI_TRANSITIONS=963} [2024-10-11 17:08:34,155 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 131 predicate places. [2024-10-11 17:08:34,155 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 963 transitions, 6932 flow [2024-10-11 17:08:34,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:34,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:34,156 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:34,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:08:34,156 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:34,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1989277401, now seen corresponding path program 4 times [2024-10-11 17:08:34,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:34,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433260135] [2024-10-11 17:08:34,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:34,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-11 17:08:35,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:35,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433260135] [2024-10-11 17:08:35,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433260135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:35,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:35,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 17:08:35,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905702647] [2024-10-11 17:08:35,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:35,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 17:08:35,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:35,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 17:08:35,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-11 17:08:35,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-11 17:08:35,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 963 transitions, 6932 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:35,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:35,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-11 17:08:35,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:42,168 INFO L124 PetriNetUnfolderBase]: 5852/18445 cut-off events. [2024-10-11 17:08:42,168 INFO L125 PetriNetUnfolderBase]: For 34087/34541 co-relation queries the response was YES. [2024-10-11 17:08:42,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62738 conditions, 18445 events. 5852/18445 cut-off events. For 34087/34541 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 150620 event pairs, 1708 based on Foata normal form. 50/17763 useless extension candidates. Maximal degree in co-relation 61680. Up to 5461 conditions per place. [2024-10-11 17:08:42,301 INFO L140 encePairwiseOnDemand]: 218/266 looper letters, 661 selfloop transitions, 237 changer transitions 0/1145 dead transitions. [2024-10-11 17:08:42,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1145 transitions, 10129 flow [2024-10-11 17:08:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 17:08:42,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 17:08:42,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2559 transitions. [2024-10-11 17:08:42,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7400231347599768 [2024-10-11 17:08:42,304 INFO L175 Difference]: Start difference. First operand has 394 places, 963 transitions, 6932 flow. Second operand 13 states and 2559 transitions. [2024-10-11 17:08:42,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1145 transitions, 10129 flow [2024-10-11 17:08:42,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1145 transitions, 10017 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-10-11 17:08:42,504 INFO L231 Difference]: Finished difference. Result has 411 places, 992 transitions, 8093 flow [2024-10-11 17:08:42,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=6866, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8093, PETRI_PLACES=411, PETRI_TRANSITIONS=992} [2024-10-11 17:08:42,505 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 148 predicate places. [2024-10-11 17:08:42,505 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 992 transitions, 8093 flow [2024-10-11 17:08:42,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:42,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:42,507 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:42,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:08:42,507 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:42,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash -419870181, now seen corresponding path program 5 times [2024-10-11 17:08:42,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:42,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527506972] [2024-10-11 17:08:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:42,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-11 17:08:43,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:43,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527506972] [2024-10-11 17:08:43,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527506972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:43,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:43,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 17:08:43,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274512111] [2024-10-11 17:08:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:43,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 17:08:43,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:43,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 17:08:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 17:08:44,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-11 17:08:44,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 992 transitions, 8093 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:44,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:44,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-11 17:08:44,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:50,907 INFO L124 PetriNetUnfolderBase]: 6730/20539 cut-off events. [2024-10-11 17:08:50,907 INFO L125 PetriNetUnfolderBase]: For 52925/53577 co-relation queries the response was YES. [2024-10-11 17:08:50,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76509 conditions, 20539 events. 6730/20539 cut-off events. For 52925/53577 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 170284 event pairs, 2045 based on Foata normal form. 98/19865 useless extension candidates. Maximal degree in co-relation 75313. Up to 9355 conditions per place. [2024-10-11 17:08:51,201 INFO L140 encePairwiseOnDemand]: 225/266 looper letters, 860 selfloop transitions, 197 changer transitions 0/1304 dead transitions. [2024-10-11 17:08:51,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1304 transitions, 13548 flow [2024-10-11 17:08:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 17:08:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-11 17:08:51,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3686 transitions. [2024-10-11 17:08:51,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6928571428571428 [2024-10-11 17:08:51,204 INFO L175 Difference]: Start difference. First operand has 411 places, 992 transitions, 8093 flow. Second operand 20 states and 3686 transitions. [2024-10-11 17:08:51,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1304 transitions, 13548 flow [2024-10-11 17:08:51,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1304 transitions, 13260 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-10-11 17:08:51,430 INFO L231 Difference]: Finished difference. Result has 439 places, 1104 transitions, 10294 flow [2024-10-11 17:08:51,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=7904, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=823, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10294, PETRI_PLACES=439, PETRI_TRANSITIONS=1104} [2024-10-11 17:08:51,431 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 176 predicate places. [2024-10-11 17:08:51,431 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 1104 transitions, 10294 flow [2024-10-11 17:08:51,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 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) [2024-10-11 17:08:51,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:51,432 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:51,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:08:51,432 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-11 17:08:51,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:51,432 INFO L85 PathProgramCache]: Analyzing trace with hash 582654843, now seen corresponding path program 6 times [2024-10-11 17:08:51,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:51,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693886216] [2024-10-11 17:08:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:51,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat