./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d 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/pthread-divine/one_time_barrier_twice_2t.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 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:49:30,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:49:30,262 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:49:30,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:49:30,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:49:30,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:49:30,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:49:30,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:49:30,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:49:30,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:49:30,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:49:30,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:49:30,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:49:30,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:49:30,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:49:30,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:49:30,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:49:30,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:49:30,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:49:30,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:49:30,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:49:30,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:49:30,307 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:49:30,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:49:30,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:49:30,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:49:30,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:49:30,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:49:30,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:49:30,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:49:30,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:49:30,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:49:30,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:49:30,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:49:30,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:49:30,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:49:30,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:49:30,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:49:30,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:49:30,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:49:30,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:49:30,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2024-11-09 06:49:30,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:49:30,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:49:30,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:49:30,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:49:30,607 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:49:30,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2024-11-09 06:49:32,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:49:32,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:49:32,404 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2024-11-09 06:49:32,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aaf1b3b5/fbeef0efef5f4691aa15e22c5e0cb51a/FLAGff922e6bb [2024-11-09 06:49:32,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aaf1b3b5/fbeef0efef5f4691aa15e22c5e0cb51a [2024-11-09 06:49:32,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:49:32,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:49:32,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:49:32,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:49:32,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:49:32,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:49:32" (1/1) ... [2024-11-09 06:49:32,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254e32f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:32, skipping insertion in model container [2024-11-09 06:49:32,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:49:32" (1/1) ... [2024-11-09 06:49:32,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:49:33,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:49:33,184 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:49:33,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:49:33,330 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:49:33,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33 WrapperNode [2024-11-09 06:49:33,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:49:33,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:49:33,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:49:33,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:49:33,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,441 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 907 [2024-11-09 06:49:33,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:49:33,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:49:33,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:49:33,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:49:33,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:49:33,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:49:33,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:49:33,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:49:33,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (1/1) ... [2024-11-09 06:49:33,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:49:33,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:49:33,663 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) [2024-11-09 06:49:33,667 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 [2024-11-09 06:49:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:49:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:49:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:49:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-09 06:49:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-09 06:49:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:49:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:49:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:49:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:49:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:49:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:49:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:49:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:49:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:49:33,724 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:49:33,929 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:49:33,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:49:35,271 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:49:35,272 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:49:35,353 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:49:35,353 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-09 06:49:35,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:49:35 BoogieIcfgContainer [2024-11-09 06:49:35,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:49:35,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:49:35,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:49:35,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:49:35,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:49:32" (1/3) ... [2024-11-09 06:49:35,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d552957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:49:35, skipping insertion in model container [2024-11-09 06:49:35,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:49:33" (2/3) ... [2024-11-09 06:49:35,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d552957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:49:35, skipping insertion in model container [2024-11-09 06:49:35,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:49:35" (3/3) ... [2024-11-09 06:49:35,365 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2024-11-09 06:49:35,382 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:49:35,382 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2024-11-09 06:49:35,383 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:49:35,677 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:49:35,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 976 places, 1064 transitions, 2135 flow [2024-11-09 06:49:36,362 INFO L124 PetriNetUnfolderBase]: 137/1564 cut-off events. [2024-11-09 06:49:36,363 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:49:36,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1564 events. 137/1564 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5619 event pairs, 0 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 926. Up to 4 conditions per place. [2024-11-09 06:49:36,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 976 places, 1064 transitions, 2135 flow [2024-11-09 06:49:36,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 976 places, 1064 transitions, 2135 flow [2024-11-09 06:49:36,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:49:36,527 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;@3c4486e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:49:36,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-11-09 06:49:36,535 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:49:36,536 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-09 06:49:36,536 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:49:36,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:49:36,537 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] [2024-11-09 06:49:36,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 06:49:36,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:36,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1719574130, now seen corresponding path program 1 times [2024-11-09 06:49:36,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:49:36,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855638861] [2024-11-09 06:49:36,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:36,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:49:37,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:49:37,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855638861] [2024-11-09 06:49:37,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855638861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:49:37,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:49:37,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:49:37,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030534659] [2024-11-09 06:49:37,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:49:37,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:49:37,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:49:37,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:49:37,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:49:39,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1064 [2024-11-09 06:49:39,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 976 places, 1064 transitions, 2135 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 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) [2024-11-09 06:49:39,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:49:39,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1064 [2024-11-09 06:49:39,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:49:50,149 INFO L124 PetriNetUnfolderBase]: 12711/59643 cut-off events. [2024-11-09 06:49:50,149 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-11-09 06:49:50,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83052 conditions, 59643 events. 12711/59643 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 694748 event pairs, 11413 based on Foata normal form. 7003/59475 useless extension candidates. Maximal degree in co-relation 82324. Up to 23399 conditions per place. [2024-11-09 06:49:50,611 INFO L140 encePairwiseOnDemand]: 986/1064 looper letters, 239 selfloop transitions, 5 changer transitions 6/963 dead transitions. [2024-11-09 06:49:50,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 963 transitions, 2421 flow [2024-11-09 06:49:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:49:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:49:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4799 transitions. [2024-11-09 06:49:50,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7517230576441103 [2024-11-09 06:49:50,644 INFO L175 Difference]: Start difference. First operand has 976 places, 1064 transitions, 2135 flow. Second operand 6 states and 4799 transitions. [2024-11-09 06:49:50,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 963 transitions, 2421 flow [2024-11-09 06:49:50,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 963 transitions, 2421 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:49:50,679 INFO L231 Difference]: Finished difference. Result has 952 places, 957 transitions, 1931 flow [2024-11-09 06:49:50,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1931, PETRI_PLACES=952, PETRI_TRANSITIONS=957} [2024-11-09 06:49:50,690 INFO L277 CegarLoopForPetriNet]: 976 programPoint places, -24 predicate places. [2024-11-09 06:49:50,691 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 957 transitions, 1931 flow [2024-11-09 06:49:50,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 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) [2024-11-09 06:49:50,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:49:50,695 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] [2024-11-09 06:49:50,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:49:50,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 06:49:50,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash -247392740, now seen corresponding path program 1 times [2024-11-09 06:49:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:49:50,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400484609] [2024-11-09 06:49:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:50,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:49:50,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:49:50,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400484609] [2024-11-09 06:49:50,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400484609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:49:50,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:49:50,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:49:50,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790368287] [2024-11-09 06:49:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:49:50,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:49:50,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:49:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:49:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:49:50,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 964 out of 1064 [2024-11-09 06:49:50,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 957 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 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) [2024-11-09 06:49:50,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:49:50,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 964 of 1064 [2024-11-09 06:49:50,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:49:52,067 INFO L124 PetriNetUnfolderBase]: 247/4823 cut-off events. [2024-11-09 06:49:52,067 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:49:52,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 4823 events. 247/4823 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 36047 event pairs, 110 based on Foata normal form. 1/4162 useless extension candidates. Maximal degree in co-relation 5062. Up to 306 conditions per place. [2024-11-09 06:49:52,109 INFO L140 encePairwiseOnDemand]: 1061/1064 looper letters, 27 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2024-11-09 06:49:52,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 958 transitions, 1991 flow [2024-11-09 06:49:52,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:49:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:49:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2922 transitions. [2024-11-09 06:49:52,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9154135338345865 [2024-11-09 06:49:52,118 INFO L175 Difference]: Start difference. First operand has 952 places, 957 transitions, 1931 flow. Second operand 3 states and 2922 transitions. [2024-11-09 06:49:52,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 958 transitions, 1991 flow [2024-11-09 06:49:52,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 958 transitions, 1981 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:49:52,142 INFO L231 Difference]: Finished difference. Result has 944 places, 958 transitions, 1933 flow [2024-11-09 06:49:52,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=944, PETRI_TRANSITIONS=958} [2024-11-09 06:49:52,145 INFO L277 CegarLoopForPetriNet]: 976 programPoint places, -32 predicate places. [2024-11-09 06:49:52,145 INFO L471 AbstractCegarLoop]: Abstraction has has 944 places, 958 transitions, 1933 flow [2024-11-09 06:49:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 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) [2024-11-09 06:49:52,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:49:52,148 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] [2024-11-09 06:49:52,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:49:52,149 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 06:49:52,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2111940816, now seen corresponding path program 1 times [2024-11-09 06:49:52,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:49:52,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208534536] [2024-11-09 06:49:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:49:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:49:52,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:49:52,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208534536] [2024-11-09 06:49:52,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208534536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:49:52,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:49:52,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:49:52,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499579294] [2024-11-09 06:49:52,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:49:52,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:49:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:49:52,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:49:52,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:49:54,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1064 [2024-11-09 06:49:54,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 958 transitions, 1933 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 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) [2024-11-09 06:49:54,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:49:54,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1064 [2024-11-09 06:49:54,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:05,599 INFO L124 PetriNetUnfolderBase]: 12711/59664 cut-off events. [2024-11-09 06:50:05,600 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-09 06:50:05,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83088 conditions, 59664 events. 12711/59664 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 694967 event pairs, 11413 based on Foata normal form. 0/52496 useless extension candidates. Maximal degree in co-relation 83009. Up to 23402 conditions per place. [2024-11-09 06:50:06,045 INFO L140 encePairwiseOnDemand]: 1058/1064 looper letters, 240 selfloop transitions, 5 changer transitions 0/957 dead transitions. [2024-11-09 06:50:06,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 957 transitions, 2421 flow [2024-11-09 06:50:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:50:06,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:50:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4727 transitions. [2024-11-09 06:50:06,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7404448621553885 [2024-11-09 06:50:06,059 INFO L175 Difference]: Start difference. First operand has 944 places, 958 transitions, 1933 flow. Second operand 6 states and 4727 transitions. [2024-11-09 06:50:06,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 957 transitions, 2421 flow [2024-11-09 06:50:06,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 957 transitions, 2419 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:50:06,086 INFO L231 Difference]: Finished difference. Result has 947 places, 957 transitions, 1939 flow [2024-11-09 06:50:06,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1939, PETRI_PLACES=947, PETRI_TRANSITIONS=957} [2024-11-09 06:50:06,089 INFO L277 CegarLoopForPetriNet]: 976 programPoint places, -29 predicate places. [2024-11-09 06:50:06,091 INFO L471 AbstractCegarLoop]: Abstraction has has 947 places, 957 transitions, 1939 flow [2024-11-09 06:50:06,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 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) [2024-11-09 06:50:06,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:06,095 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] [2024-11-09 06:50:06,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:50:06,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 06:50:06,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1984018536, now seen corresponding path program 1 times [2024-11-09 06:50:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:06,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208021915] [2024-11-09 06:50:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:06,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:06,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:06,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208021915] [2024-11-09 06:50:06,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208021915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:06,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:06,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:50:06,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954604197] [2024-11-09 06:50:06,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:06,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:50:06,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:50:06,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:50:07,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1064 [2024-11-09 06:50:07,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 957 transitions, 1939 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 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) [2024-11-09 06:50:07,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:07,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1064 [2024-11-09 06:50:07,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:19,619 INFO L124 PetriNetUnfolderBase]: 12711/59662 cut-off events. [2024-11-09 06:50:19,619 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-09 06:50:19,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83095 conditions, 59662 events. 12711/59662 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 694838 event pairs, 11413 based on Foata normal form. 0/52496 useless extension candidates. Maximal degree in co-relation 83002. Up to 23402 conditions per place. [2024-11-09 06:50:19,894 INFO L140 encePairwiseOnDemand]: 1058/1064 looper letters, 240 selfloop transitions, 5 changer transitions 0/956 dead transitions. [2024-11-09 06:50:19,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 956 transitions, 2427 flow [2024-11-09 06:50:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:50:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:50:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4727 transitions. [2024-11-09 06:50:19,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7404448621553885 [2024-11-09 06:50:19,904 INFO L175 Difference]: Start difference. First operand has 947 places, 957 transitions, 1939 flow. Second operand 6 states and 4727 transitions. [2024-11-09 06:50:19,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 956 transitions, 2427 flow [2024-11-09 06:50:19,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 956 transitions, 2417 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:50:19,922 INFO L231 Difference]: Finished difference. Result has 946 places, 956 transitions, 1937 flow [2024-11-09 06:50:19,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1937, PETRI_PLACES=946, PETRI_TRANSITIONS=956} [2024-11-09 06:50:19,926 INFO L277 CegarLoopForPetriNet]: 976 programPoint places, -30 predicate places. [2024-11-09 06:50:19,926 INFO L471 AbstractCegarLoop]: Abstraction has has 946 places, 956 transitions, 1937 flow [2024-11-09 06:50:19,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 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) [2024-11-09 06:50:19,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:19,932 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:19,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:50:19,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 06:50:19,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1219837369, now seen corresponding path program 1 times [2024-11-09 06:50:19,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:19,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888406442] [2024-11-09 06:50:19,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:19,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:20,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:20,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:20,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888406442] [2024-11-09 06:50:20,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888406442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:50:20,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583048744] [2024-11-09 06:50:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:20,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:50:20,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:50:20,039 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) [2024-11-09 06:50:20,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:50:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:20,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:50:20,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:20,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:50:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:20,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583048744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:50:20,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:50:20,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-09 06:50:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625941535] [2024-11-09 06:50:20,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:50:20,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:50:20,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:20,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:50:20,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:50:20,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 963 out of 1064 [2024-11-09 06:50:20,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 956 transitions, 1937 flow. Second operand has 5 states, 5 states have (on average 964.8) internal successors, (4824), 5 states have internal predecessors, (4824), 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) [2024-11-09 06:50:20,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:20,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 963 of 1064 [2024-11-09 06:50:20,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:50:21,267 INFO L124 PetriNetUnfolderBase]: 247/4821 cut-off events. [2024-11-09 06:50:21,267 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-09 06:50:21,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 4821 events. 247/4821 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 36285 event pairs, 110 based on Foata normal form. 1/4164 useless extension candidates. Maximal degree in co-relation 5045. Up to 305 conditions per place. [2024-11-09 06:50:21,314 INFO L140 encePairwiseOnDemand]: 1060/1064 looper letters, 28 selfloop transitions, 4 changer transitions 0/958 dead transitions. [2024-11-09 06:50:21,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 2005 flow [2024-11-09 06:50:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:50:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 06:50:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3885 transitions. [2024-11-09 06:50:21,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.912828947368421 [2024-11-09 06:50:21,323 INFO L175 Difference]: Start difference. First operand has 946 places, 956 transitions, 1937 flow. Second operand 4 states and 3885 transitions. [2024-11-09 06:50:21,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 2005 flow [2024-11-09 06:50:21,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 958 transitions, 1995 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:50:21,338 INFO L231 Difference]: Finished difference. Result has 946 places, 957 transitions, 1947 flow [2024-11-09 06:50:21,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1947, PETRI_PLACES=946, PETRI_TRANSITIONS=957} [2024-11-09 06:50:21,345 INFO L277 CegarLoopForPetriNet]: 976 programPoint places, -30 predicate places. [2024-11-09 06:50:21,345 INFO L471 AbstractCegarLoop]: Abstraction has has 946 places, 957 transitions, 1947 flow [2024-11-09 06:50:21,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 964.8) internal successors, (4824), 5 states have internal predecessors, (4824), 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) [2024-11-09 06:50:21,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:50:21,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:21,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:50:21,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:50:21,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 06:50:21,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash 600166386, now seen corresponding path program 2 times [2024-11-09 06:50:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:50:21,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399282769] [2024-11-09 06:50:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 06:50:22,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:50:22,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399282769] [2024-11-09 06:50:22,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399282769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:22,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:22,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:50:22,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931817836] [2024-11-09 06:50:22,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:22,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:50:22,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:50:22,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:50:22,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:50:23,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 744 out of 1064 [2024-11-09 06:50:23,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 957 transitions, 1947 flow. Second operand has 6 states, 6 states have (on average 747.3333333333334) internal successors, (4484), 6 states have internal predecessors, (4484), 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) [2024-11-09 06:50:23,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:50:23,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 744 of 1064 [2024-11-09 06:50:23,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand