./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:53:45,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:53:45,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:53:45,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:53:45,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:53:45,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:53:45,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:53:45,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:53:45,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:53:45,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:53:45,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:53:45,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:53:45,431 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:53:45,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:53:45,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:53:45,432 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:53:45,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:53:45,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:53:45,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:53:45,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:53:45,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:53:45,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:53:45,435 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:53:45,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:53:45,442 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:53:45,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:53:45,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:53:45,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:53:45,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:53:45,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:53:45,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:53:45,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:45,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:53:45,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:53:45,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:53:45,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:53:45,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:53:45,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:53:45,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:53:45,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:53:45,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:53:45,447 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 [2024-11-19 05:53:45,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:53:45,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:53:45,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:53:45,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:53:45,760 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:53:45,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i [2024-11-19 05:53:47,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:53:47,512 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:53:47,513 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i [2024-11-19 05:53:47,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bfc27ae/00440fb8d11e4f00933550a85bb14b53/FLAGb40377323 [2024-11-19 05:53:47,829 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bfc27ae/00440fb8d11e4f00933550a85bb14b53 [2024-11-19 05:53:47,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:53:47,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:53:47,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:47,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:53:47,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:53:47,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:47" (1/1) ... [2024-11-19 05:53:47,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540b8168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:47, skipping insertion in model container [2024-11-19 05:53:47,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:47" (1/1) ... [2024-11-19 05:53:47,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:53:48,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:48,325 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:53:48,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:48,424 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:53:48,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48 WrapperNode [2024-11-19 05:53:48,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:48,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:48,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:53:48,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:53:48,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,477 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-19 05:53:48,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:48,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:53:48,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:53:48,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:53:48,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:53:48,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:53:48,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:53:48,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:53:48,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (1/1) ... [2024-11-19 05:53:48,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:48,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:53:48,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:53:48,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:53:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:53:48,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:53:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:53:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:53:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:53:48,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:53:48,613 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:53:48,736 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:53:48,738 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:53:49,026 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:53:49,027 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:53:49,075 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:53:49,076 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-19 05:53:49,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:49 BoogieIcfgContainer [2024-11-19 05:53:49,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:53:49,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:53:49,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:53:49,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:53:49,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:53:47" (1/3) ... [2024-11-19 05:53:49,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f7c7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:49, skipping insertion in model container [2024-11-19 05:53:49,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:48" (2/3) ... [2024-11-19 05:53:49,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f7c7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:49, skipping insertion in model container [2024-11-19 05:53:49,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:49" (3/3) ... [2024-11-19 05:53:49,088 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2024-11-19 05:53:49,101 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:53:49,102 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-19 05:53:49,102 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:53:49,163 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:53:49,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 155 transitions, 317 flow [2024-11-19 05:53:49,304 INFO L124 PetriNetUnfolderBase]: 20/214 cut-off events. [2024-11-19 05:53:49,304 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:53:49,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 214 events. 20/214 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 621 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-19 05:53:49,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 155 transitions, 317 flow [2024-11-19 05:53:49,321 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 155 transitions, 317 flow [2024-11-19 05:53:49,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:49,345 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;@5b0cfd4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:49,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-19 05:53:49,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:49,363 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-11-19 05:53:49,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:49,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:49,365 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] [2024-11-19 05:53:49,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:49,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:49,371 INFO L85 PathProgramCache]: Analyzing trace with hash -778459379, now seen corresponding path program 1 times [2024-11-19 05:53:49,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:49,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593613181] [2024-11-19 05:53:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:49,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:49,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:49,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593613181] [2024-11-19 05:53:49,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593613181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:49,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:49,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:49,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875015015] [2024-11-19 05:53:49,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:49,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:49,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:49,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 155 [2024-11-19 05:53:49,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 155 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2024-11-19 05:53:49,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:49,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 155 [2024-11-19 05:53:49,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:49,983 INFO L124 PetriNetUnfolderBase]: 49/571 cut-off events. [2024-11-19 05:53:49,985 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:53:49,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 571 events. 49/571 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2733 event pairs, 35 based on Foata normal form. 63/577 useless extension candidates. Maximal degree in co-relation 607. Up to 108 conditions per place. [2024-11-19 05:53:49,994 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 22 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2024-11-19 05:53:49,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 349 flow [2024-11-19 05:53:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:50,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2024-11-19 05:53:50,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8946236559139785 [2024-11-19 05:53:50,013 INFO L175 Difference]: Start difference. First operand has 144 places, 155 transitions, 317 flow. Second operand 3 states and 416 transitions. [2024-11-19 05:53:50,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 349 flow [2024-11-19 05:53:50,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 147 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:50,026 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 297 flow [2024-11-19 05:53:50,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2024-11-19 05:53:50,033 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2024-11-19 05:53:50,036 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 297 flow [2024-11-19 05:53:50,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2024-11-19 05:53:50,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:50,037 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] [2024-11-19 05:53:50,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:53:50,038 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:50,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash 235746507, now seen corresponding path program 1 times [2024-11-19 05:53:50,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:50,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321791074] [2024-11-19 05:53:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:50,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:50,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:50,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321791074] [2024-11-19 05:53:50,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321791074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:50,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:50,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:53:50,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584832941] [2024-11-19 05:53:50,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:50,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:53:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:53:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:53:50,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 155 [2024-11-19 05:53:50,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-19 05:53:50,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:50,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 155 [2024-11-19 05:53:50,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:50,998 INFO L124 PetriNetUnfolderBase]: 109/671 cut-off events. [2024-11-19 05:53:50,999 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 05:53:51,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 671 events. 109/671 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3789 event pairs, 7 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 859. Up to 181 conditions per place. [2024-11-19 05:53:51,007 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 48 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2024-11-19 05:53:51,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 164 transitions, 449 flow [2024-11-19 05:53:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:53:51,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:53:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-19 05:53:51,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7806451612903226 [2024-11-19 05:53:51,014 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 297 flow. Second operand 6 states and 726 transitions. [2024-11-19 05:53:51,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 164 transitions, 449 flow [2024-11-19 05:53:51,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 164 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:51,020 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 301 flow [2024-11-19 05:53:51,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2024-11-19 05:53:51,021 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2024-11-19 05:53:51,021 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 301 flow [2024-11-19 05:53:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-19 05:53:51,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:51,023 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] [2024-11-19 05:53:51,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:53:51,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:51,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1801427432, now seen corresponding path program 1 times [2024-11-19 05:53:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:51,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815251129] [2024-11-19 05:53:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:51,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:51,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815251129] [2024-11-19 05:53:51,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815251129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:51,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:51,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:51,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510313959] [2024-11-19 05:53:51,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:51,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:51,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:51,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:51,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:51,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 155 [2024-11-19 05:53:51,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-11-19 05:53:51,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:51,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 155 [2024-11-19 05:53:51,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:51,309 INFO L124 PetriNetUnfolderBase]: 92/803 cut-off events. [2024-11-19 05:53:51,309 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 05:53:51,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 803 events. 92/803 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4684 event pairs, 30 based on Foata normal form. 0/733 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-11-19 05:53:51,316 INFO L140 encePairwiseOnDemand]: 146/155 looper letters, 30 selfloop transitions, 6 changer transitions 0/153 dead transitions. [2024-11-19 05:53:51,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 402 flow [2024-11-19 05:53:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:51,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2024-11-19 05:53:51,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8516129032258064 [2024-11-19 05:53:51,319 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 301 flow. Second operand 3 states and 396 transitions. [2024-11-19 05:53:51,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 402 flow [2024-11-19 05:53:51,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 153 transitions, 392 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:53:51,324 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 329 flow [2024-11-19 05:53:51,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-11-19 05:53:51,327 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 0 predicate places. [2024-11-19 05:53:51,328 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 329 flow [2024-11-19 05:53:51,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-11-19 05:53:51,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:51,329 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] [2024-11-19 05:53:51,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:53:51,330 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:51,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:51,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1816965716, now seen corresponding path program 1 times [2024-11-19 05:53:51,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:51,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584486969] [2024-11-19 05:53:51,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:51,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:51,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:51,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584486969] [2024-11-19 05:53:51,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584486969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:51,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:51,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:51,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663024365] [2024-11-19 05:53:51,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:51,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:51,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:51,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2024-11-19 05:53:51,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-11-19 05:53:51,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:51,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2024-11-19 05:53:51,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:51,522 INFO L124 PetriNetUnfolderBase]: 95/805 cut-off events. [2024-11-19 05:53:51,523 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-19 05:53:51,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 805 events. 95/805 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4778 event pairs, 60 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-11-19 05:53:51,528 INFO L140 encePairwiseOnDemand]: 150/155 looper letters, 27 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2024-11-19 05:53:51,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 149 transitions, 409 flow [2024-11-19 05:53:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:51,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-19 05:53:51,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843010752688172 [2024-11-19 05:53:51,530 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 329 flow. Second operand 3 states and 392 transitions. [2024-11-19 05:53:51,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 149 transitions, 409 flow [2024-11-19 05:53:51,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 149 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:51,534 INFO L231 Difference]: Finished difference. Result has 146 places, 145 transitions, 349 flow [2024-11-19 05:53:51,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=146, PETRI_TRANSITIONS=145} [2024-11-19 05:53:51,535 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 2 predicate places. [2024-11-19 05:53:51,535 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 145 transitions, 349 flow [2024-11-19 05:53:51,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-11-19 05:53:51,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:51,536 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:51,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:53:51,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:51,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash 517944477, now seen corresponding path program 1 times [2024-11-19 05:53:51,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:51,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971230603] [2024-11-19 05:53:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:51,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:53:51,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:53:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:53:51,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:53:51,631 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:53:51,632 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-19 05:53:51,633 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-19 05:53:51,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-19 05:53:51,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-19 05:53:51,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-19 05:53:51,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-19 05:53:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-19 05:53:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-19 05:53:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-19 05:53:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-19 05:53:51,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-19 05:53:51,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-19 05:53:51,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:53:51,636 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 05:53:51,640 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:53:51,640 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:53:51,677 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:53:51,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 204 transitions, 424 flow [2024-11-19 05:53:51,723 INFO L124 PetriNetUnfolderBase]: 35/350 cut-off events. [2024-11-19 05:53:51,723 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:53:51,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 350 events. 35/350 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1173 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2024-11-19 05:53:51,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 204 transitions, 424 flow [2024-11-19 05:53:51,732 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 204 transitions, 424 flow [2024-11-19 05:53:51,733 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:51,735 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;@5b0cfd4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:51,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-19 05:53:51,741 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:51,742 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-11-19 05:53:51,742 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:51,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:51,743 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] [2024-11-19 05:53:51,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:51,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash 598020493, now seen corresponding path program 1 times [2024-11-19 05:53:51,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:51,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519089892] [2024-11-19 05:53:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:51,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:51,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:51,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519089892] [2024-11-19 05:53:51,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519089892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:51,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:51,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799949900] [2024-11-19 05:53:51,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:51,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:51,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:51,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:51,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:51,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 204 [2024-11-19 05:53:51,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 204 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-11-19 05:53:51,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:51,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 204 [2024-11-19 05:53:51,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:52,634 INFO L124 PetriNetUnfolderBase]: 789/4313 cut-off events. [2024-11-19 05:53:52,634 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-19 05:53:52,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5666 conditions, 4313 events. 789/4313 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 41133 event pairs, 348 based on Foata normal form. 749/4675 useless extension candidates. Maximal degree in co-relation 721. Up to 1303 conditions per place. [2024-11-19 05:53:52,665 INFO L140 encePairwiseOnDemand]: 183/204 looper letters, 31 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2024-11-19 05:53:52,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 191 transitions, 464 flow [2024-11-19 05:53:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2024-11-19 05:53:52,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8758169934640523 [2024-11-19 05:53:52,668 INFO L175 Difference]: Start difference. First operand has 188 places, 204 transitions, 424 flow. Second operand 3 states and 536 transitions. [2024-11-19 05:53:52,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 191 transitions, 464 flow [2024-11-19 05:53:52,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 191 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:52,672 INFO L231 Difference]: Finished difference. Result has 189 places, 185 transitions, 396 flow [2024-11-19 05:53:52,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2024-11-19 05:53:52,674 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2024-11-19 05:53:52,675 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 396 flow [2024-11-19 05:53:52,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-11-19 05:53:52,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:52,676 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] [2024-11-19 05:53:52,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:53:52,676 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:52,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash 182982859, now seen corresponding path program 1 times [2024-11-19 05:53:52,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:52,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410773798] [2024-11-19 05:53:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:52,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:52,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410773798] [2024-11-19 05:53:52,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410773798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:52,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:52,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:53:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078389347] [2024-11-19 05:53:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:52,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:53:52,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:53:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:53:53,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 204 [2024-11-19 05:53:53,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-11-19 05:53:53,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:53,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 204 [2024-11-19 05:53:53,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:54,054 INFO L124 PetriNetUnfolderBase]: 1719/5688 cut-off events. [2024-11-19 05:53:54,054 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-19 05:53:54,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8700 conditions, 5688 events. 1719/5688 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 54074 event pairs, 222 based on Foata normal form. 0/5295 useless extension candidates. Maximal degree in co-relation 1233. Up to 2015 conditions per place. [2024-11-19 05:53:54,093 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 80 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-11-19 05:53:54,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 232 transitions, 662 flow [2024-11-19 05:53:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:53:54,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:53:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 968 transitions. [2024-11-19 05:53:54,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7908496732026143 [2024-11-19 05:53:54,096 INFO L175 Difference]: Start difference. First operand has 189 places, 185 transitions, 396 flow. Second operand 6 states and 968 transitions. [2024-11-19 05:53:54,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 232 transitions, 662 flow [2024-11-19 05:53:54,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 232 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:53:54,100 INFO L231 Difference]: Finished difference. Result has 192 places, 184 transitions, 404 flow [2024-11-19 05:53:54,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=184} [2024-11-19 05:53:54,102 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 4 predicate places. [2024-11-19 05:53:54,102 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 184 transitions, 404 flow [2024-11-19 05:53:54,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-11-19 05:53:54,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:54,103 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] [2024-11-19 05:53:54,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:53:54,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:54,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:54,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1648112099, now seen corresponding path program 1 times [2024-11-19 05:53:54,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:54,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022642034] [2024-11-19 05:53:54,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:54,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:54,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:54,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022642034] [2024-11-19 05:53:54,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022642034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:54,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:54,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:54,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756782461] [2024-11-19 05:53:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:54,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:54,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:54,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:54,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:54,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 204 [2024-11-19 05:53:54,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 184 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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) [2024-11-19 05:53:54,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:54,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 204 [2024-11-19 05:53:54,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:56,039 INFO L124 PetriNetUnfolderBase]: 3894/14611 cut-off events. [2024-11-19 05:53:56,039 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-19 05:53:56,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21162 conditions, 14611 events. 3894/14611 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 164005 event pairs, 1530 based on Foata normal form. 0/13069 useless extension candidates. Maximal degree in co-relation 20044. Up to 3516 conditions per place. [2024-11-19 05:53:56,137 INFO L140 encePairwiseOnDemand]: 185/204 looper letters, 58 selfloop transitions, 14 changer transitions 0/217 dead transitions. [2024-11-19 05:53:56,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 217 transitions, 625 flow [2024-11-19 05:53:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2024-11-19 05:53:56,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415032679738562 [2024-11-19 05:53:56,139 INFO L175 Difference]: Start difference. First operand has 192 places, 184 transitions, 404 flow. Second operand 3 states and 515 transitions. [2024-11-19 05:53:56,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 217 transitions, 625 flow [2024-11-19 05:53:56,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 217 transitions, 613 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:53:56,146 INFO L231 Difference]: Finished difference. Result has 191 places, 198 transitions, 514 flow [2024-11-19 05:53:56,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=191, PETRI_TRANSITIONS=198} [2024-11-19 05:53:56,147 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 3 predicate places. [2024-11-19 05:53:56,148 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 198 transitions, 514 flow [2024-11-19 05:53:56,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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) [2024-11-19 05:53:56,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:56,148 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] [2024-11-19 05:53:56,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:53:56,149 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:56,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:56,149 INFO L85 PathProgramCache]: Analyzing trace with hash -368572323, now seen corresponding path program 1 times [2024-11-19 05:53:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206940253] [2024-11-19 05:53:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:56,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:56,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:56,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206940253] [2024-11-19 05:53:56,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206940253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:56,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:56,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:56,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509137072] [2024-11-19 05:53:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:56,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:56,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:56,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-11-19 05:53:56,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 198 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:56,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:56,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-11-19 05:53:56,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:58,423 INFO L124 PetriNetUnfolderBase]: 4021/16464 cut-off events. [2024-11-19 05:53:58,423 INFO L125 PetriNetUnfolderBase]: For 4445/4626 co-relation queries the response was YES. [2024-11-19 05:53:58,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27152 conditions, 16464 events. 4021/16464 cut-off events. For 4445/4626 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 193929 event pairs, 2411 based on Foata normal form. 46/14965 useless extension candidates. Maximal degree in co-relation 13739. Up to 5498 conditions per place. [2024-11-19 05:53:58,651 INFO L140 encePairwiseOnDemand]: 195/204 looper letters, 52 selfloop transitions, 14 changer transitions 0/222 dead transitions. [2024-11-19 05:53:58,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 222 transitions, 732 flow [2024-11-19 05:53:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-11-19 05:53:58,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8316993464052288 [2024-11-19 05:53:58,654 INFO L175 Difference]: Start difference. First operand has 191 places, 198 transitions, 514 flow. Second operand 3 states and 509 transitions. [2024-11-19 05:53:58,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 222 transitions, 732 flow [2024-11-19 05:53:58,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 222 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:58,671 INFO L231 Difference]: Finished difference. Result has 193 places, 210 transitions, 612 flow [2024-11-19 05:53:58,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=193, PETRI_TRANSITIONS=210} [2024-11-19 05:53:58,674 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 5 predicate places. [2024-11-19 05:53:58,674 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 210 transitions, 612 flow [2024-11-19 05:53:58,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:58,675 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] [2024-11-19 05:53:58,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:53:58,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:58,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:58,676 INFO L85 PathProgramCache]: Analyzing trace with hash 556786939, now seen corresponding path program 1 times [2024-11-19 05:53:58,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:58,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859803580] [2024-11-19 05:53:58,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:58,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:58,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:58,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:58,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859803580] [2024-11-19 05:53:58,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859803580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:53:58,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388909776] [2024-11-19 05:53:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:58,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:53:58,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:53:58,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:53:58,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:53:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:58,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:53:58,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:53:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:58,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:53:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:59,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388909776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:53:59,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:53:59,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:53:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30224663] [2024-11-19 05:53:59,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:53:59,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:53:59,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:59,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:53:59,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:53:59,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 204 [2024-11-19 05:53:59,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 210 transitions, 612 flow. Second operand has 10 states, 10 states have (on average 158.5) internal successors, (1585), 10 states have internal predecessors, (1585), 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) [2024-11-19 05:53:59,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:59,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 204 [2024-11-19 05:53:59,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:59,754 INFO L124 PetriNetUnfolderBase]: 806/4161 cut-off events. [2024-11-19 05:53:59,754 INFO L125 PetriNetUnfolderBase]: For 628/679 co-relation queries the response was YES. [2024-11-19 05:53:59,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6432 conditions, 4161 events. 806/4161 cut-off events. For 628/679 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 39610 event pairs, 47 based on Foata normal form. 110/3965 useless extension candidates. Maximal degree in co-relation 3055. Up to 470 conditions per place. [2024-11-19 05:53:59,777 INFO L140 encePairwiseOnDemand]: 199/204 looper letters, 72 selfloop transitions, 7 changer transitions 0/217 dead transitions. [2024-11-19 05:53:59,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 217 transitions, 738 flow [2024-11-19 05:53:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:53:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:53:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1485 transitions. [2024-11-19 05:53:59,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2024-11-19 05:53:59,782 INFO L175 Difference]: Start difference. First operand has 193 places, 210 transitions, 612 flow. Second operand 9 states and 1485 transitions. [2024-11-19 05:53:59,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 217 transitions, 738 flow [2024-11-19 05:53:59,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 217 transitions, 718 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:59,789 INFO L231 Difference]: Finished difference. Result has 156 places, 161 transitions, 462 flow [2024-11-19 05:53:59,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=462, PETRI_PLACES=156, PETRI_TRANSITIONS=161} [2024-11-19 05:53:59,791 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -32 predicate places. [2024-11-19 05:53:59,791 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 161 transitions, 462 flow [2024-11-19 05:53:59,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.5) internal successors, (1585), 10 states have internal predecessors, (1585), 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) [2024-11-19 05:53:59,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:59,793 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:59,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:53:59,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 05:53:59,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:59,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1630048700, now seen corresponding path program 1 times [2024-11-19 05:53:59,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648740902] [2024-11-19 05:53:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:59,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:00,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:00,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648740902] [2024-11-19 05:54:00,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648740902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:00,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:00,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:00,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369438648] [2024-11-19 05:54:00,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:00,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:00,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:00,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-11-19 05:54:00,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 161 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2024-11-19 05:54:00,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:00,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-11-19 05:54:00,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:00,259 INFO L124 PetriNetUnfolderBase]: 261/1302 cut-off events. [2024-11-19 05:54:00,259 INFO L125 PetriNetUnfolderBase]: For 448/469 co-relation queries the response was YES. [2024-11-19 05:54:00,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 1302 events. 261/1302 cut-off events. For 448/469 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8676 event pairs, 132 based on Foata normal form. 7/1216 useless extension candidates. Maximal degree in co-relation 2262. Up to 459 conditions per place. [2024-11-19 05:54:00,271 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 42 selfloop transitions, 12 changer transitions 0/175 dead transitions. [2024-11-19 05:54:00,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 175 transitions, 614 flow [2024-11-19 05:54:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:00,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:00,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2024-11-19 05:54:00,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2024-11-19 05:54:00,273 INFO L175 Difference]: Start difference. First operand has 156 places, 161 transitions, 462 flow. Second operand 3 states and 495 transitions. [2024-11-19 05:54:00,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 175 transitions, 614 flow [2024-11-19 05:54:00,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 175 transitions, 599 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:00,279 INFO L231 Difference]: Finished difference. Result has 155 places, 169 transitions, 545 flow [2024-11-19 05:54:00,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=155, PETRI_TRANSITIONS=169} [2024-11-19 05:54:00,280 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -33 predicate places. [2024-11-19 05:54:00,280 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 169 transitions, 545 flow [2024-11-19 05:54:00,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2024-11-19 05:54:00,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:00,281 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] [2024-11-19 05:54:00,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:54:00,281 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:00,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash -617759989, now seen corresponding path program 1 times [2024-11-19 05:54:00,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:00,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999229075] [2024-11-19 05:54:00,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:00,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:00,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:00,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999229075] [2024-11-19 05:54:00,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999229075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:00,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:00,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:00,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505335023] [2024-11-19 05:54:00,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:00,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:00,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:00,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:00,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:00,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-11-19 05:54:00,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 169 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-11-19 05:54:00,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:00,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-11-19 05:54:00,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:00,543 INFO L124 PetriNetUnfolderBase]: 292/1374 cut-off events. [2024-11-19 05:54:00,543 INFO L125 PetriNetUnfolderBase]: For 1085/1120 co-relation queries the response was YES. [2024-11-19 05:54:00,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 1374 events. 292/1374 cut-off events. For 1085/1120 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9372 event pairs, 134 based on Foata normal form. 9/1306 useless extension candidates. Maximal degree in co-relation 2719. Up to 501 conditions per place. [2024-11-19 05:54:00,555 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 49 selfloop transitions, 12 changer transitions 0/184 dead transitions. [2024-11-19 05:54:00,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 184 transitions, 734 flow [2024-11-19 05:54:00,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 496 transitions. [2024-11-19 05:54:00,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8104575163398693 [2024-11-19 05:54:00,558 INFO L175 Difference]: Start difference. First operand has 155 places, 169 transitions, 545 flow. Second operand 3 states and 496 transitions. [2024-11-19 05:54:00,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 184 transitions, 734 flow [2024-11-19 05:54:00,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 184 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:00,564 INFO L231 Difference]: Finished difference. Result has 157 places, 177 transitions, 631 flow [2024-11-19 05:54:00,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=631, PETRI_PLACES=157, PETRI_TRANSITIONS=177} [2024-11-19 05:54:00,566 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -31 predicate places. [2024-11-19 05:54:00,566 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 177 transitions, 631 flow [2024-11-19 05:54:00,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-11-19 05:54:00,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:00,567 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:00,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:54:00,567 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:00,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash -785800553, now seen corresponding path program 1 times [2024-11-19 05:54:00,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:00,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863262251] [2024-11-19 05:54:00,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:00,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:00,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:00,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:00,627 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:00,627 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-19 05:54:00,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-19 05:54:00,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-19 05:54:00,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-19 05:54:00,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-19 05:54:00,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-19 05:54:00,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-19 05:54:00,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-19 05:54:00,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-19 05:54:00,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-19 05:54:00,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:54:00,630 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:00,631 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:00,631 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:54:00,673 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:54:00,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 253 transitions, 533 flow [2024-11-19 05:54:00,733 INFO L124 PetriNetUnfolderBase]: 55/531 cut-off events. [2024-11-19 05:54:00,734 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 05:54:00,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 531 events. 55/531 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1984 event pairs, 1 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 358. Up to 16 conditions per place. [2024-11-19 05:54:00,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 253 transitions, 533 flow [2024-11-19 05:54:00,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 253 transitions, 533 flow [2024-11-19 05:54:00,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:00,747 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;@5b0cfd4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:00,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 05:54:00,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:00,750 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-11-19 05:54:00,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:00,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:00,751 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] [2024-11-19 05:54:00,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:00,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1041899757, now seen corresponding path program 1 times [2024-11-19 05:54:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58474893] [2024-11-19 05:54:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:00,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:00,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58474893] [2024-11-19 05:54:00,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58474893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:00,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:00,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:00,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583807045] [2024-11-19 05:54:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:00,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:00,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:00,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 253 [2024-11-19 05:54:00,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 253 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2024-11-19 05:54:00,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:00,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 253 [2024-11-19 05:54:00,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:05,296 INFO L124 PetriNetUnfolderBase]: 8949/35357 cut-off events. [2024-11-19 05:54:05,297 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-19 05:54:05,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48595 conditions, 35357 events. 8949/35357 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 457962 event pairs, 8324 based on Foata normal form. 7648/39622 useless extension candidates. Maximal degree in co-relation 35526. Up to 12802 conditions per place. [2024-11-19 05:54:05,664 INFO L140 encePairwiseOnDemand]: 226/253 looper letters, 39 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-19 05:54:05,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 234 transitions, 577 flow [2024-11-19 05:54:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 655 transitions. [2024-11-19 05:54:05,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8629776021080369 [2024-11-19 05:54:05,666 INFO L175 Difference]: Start difference. First operand has 232 places, 253 transitions, 533 flow. Second operand 3 states and 655 transitions. [2024-11-19 05:54:05,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 234 transitions, 577 flow [2024-11-19 05:54:05,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 234 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:05,672 INFO L231 Difference]: Finished difference. Result has 233 places, 228 transitions, 493 flow [2024-11-19 05:54:05,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=233, PETRI_TRANSITIONS=228} [2024-11-19 05:54:05,674 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 1 predicate places. [2024-11-19 05:54:05,674 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 228 transitions, 493 flow [2024-11-19 05:54:05,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2024-11-19 05:54:05,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:05,675 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] [2024-11-19 05:54:05,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:54:05,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:05,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1549201355, now seen corresponding path program 1 times [2024-11-19 05:54:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:05,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615971796] [2024-11-19 05:54:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:05,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:06,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:06,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615971796] [2024-11-19 05:54:06,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615971796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:06,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:06,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:06,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022693328] [2024-11-19 05:54:06,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:06,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:06,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:06,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:06,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:06,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 253 [2024-11-19 05:54:06,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 228 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2024-11-19 05:54:06,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:06,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 253 [2024-11-19 05:54:06,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:11,834 INFO L124 PetriNetUnfolderBase]: 19556/50630 cut-off events. [2024-11-19 05:54:11,835 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-19 05:54:11,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79790 conditions, 50630 events. 19556/50630 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 1304. Compared 609707 event pairs, 2086 based on Foata normal form. 0/47257 useless extension candidates. Maximal degree in co-relation 56847. Up to 20048 conditions per place. [2024-11-19 05:54:12,235 INFO L140 encePairwiseOnDemand]: 247/253 looper letters, 112 selfloop transitions, 6 changer transitions 0/299 dead transitions. [2024-11-19 05:54:12,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 299 transitions, 871 flow [2024-11-19 05:54:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1210 transitions. [2024-11-19 05:54:12,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7971014492753623 [2024-11-19 05:54:12,242 INFO L175 Difference]: Start difference. First operand has 233 places, 228 transitions, 493 flow. Second operand 6 states and 1210 transitions. [2024-11-19 05:54:12,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 299 transitions, 871 flow [2024-11-19 05:54:12,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 299 transitions, 869 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:12,247 INFO L231 Difference]: Finished difference. Result has 236 places, 227 transitions, 501 flow [2024-11-19 05:54:12,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=236, PETRI_TRANSITIONS=227} [2024-11-19 05:54:12,249 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 4 predicate places. [2024-11-19 05:54:12,249 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 227 transitions, 501 flow [2024-11-19 05:54:12,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2024-11-19 05:54:12,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:12,250 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] [2024-11-19 05:54:12,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:54:12,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:12,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash 552201615, now seen corresponding path program 1 times [2024-11-19 05:54:12,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:12,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015579282] [2024-11-19 05:54:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:12,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:12,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:12,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015579282] [2024-11-19 05:54:12,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015579282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:12,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:12,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:12,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109743051] [2024-11-19 05:54:12,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:12,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:12,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:12,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:12,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 253 [2024-11-19 05:54:12,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 227 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-19 05:54:12,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:12,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 253 [2024-11-19 05:54:12,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand