./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:09:28,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:09:28,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:09:28,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:09:28,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:09:28,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:09:28,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:09:28,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:09:28,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:09:28,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:09:28,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:09:28,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:09:28,310 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:09:28,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:09:28,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:09:28,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:09:28,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:09:28,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:09:28,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:09:28,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:09:28,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:09:28,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:09:28,317 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:09:28,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:09:28,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:09:28,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:09:28,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:09:28,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:09:28,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:09:28,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:09:28,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:09:28,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:09:28,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:09:28,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:09:28,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:09:28,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:09:28,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:09:28,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:09:28,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:09:28,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:09:28,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:09:28,322 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-10-11 17:09:28,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:09:28,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:09:28,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:09:28,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:09:28,535 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:09:28,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-11 17:09:29,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:09:29,958 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:09:29,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-11 17:09:29,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e44f1c22c/3976095c92534d73b6f529a20003e03d/FLAGd3248fc89 [2024-10-11 17:09:29,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e44f1c22c/3976095c92534d73b6f529a20003e03d [2024-10-11 17:09:29,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:09:29,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:09:29,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:09:29,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:09:30,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:09:30,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:09:29" (1/1) ... [2024-10-11 17:09:30,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7ac6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30, skipping insertion in model container [2024-10-11 17:09:30,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:09:29" (1/1) ... [2024-10-11 17:09:30,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:09:30,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:09:30,353 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:09:30,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:09:30,418 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:09:30,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30 WrapperNode [2024-10-11 17:09:30,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:09:30,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:09:30,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:09:30,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:09:30,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,455 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 125 [2024-10-11 17:09:30,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:09:30,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:09:30,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:09:30,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:09:30,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:09:30,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:09:30,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:09:30,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:09:30,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (1/1) ... [2024-10-11 17:09:30,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:09:30,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:30,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:09:30,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:09:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-11 17:09:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-11 17:09:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:09:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:09:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:09:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:09:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:09:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:09:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:09:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:09:30,561 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:09:30,659 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:09:30,660 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:09:30,880 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:09:30,880 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:09:30,919 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:09:30,919 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:09:30,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:09:30 BoogieIcfgContainer [2024-10-11 17:09:30,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:09:30,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:09:30,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:09:30,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:09:30,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:09:29" (1/3) ... [2024-10-11 17:09:30,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b109030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:09:30, skipping insertion in model container [2024-10-11 17:09:30,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:30" (2/3) ... [2024-10-11 17:09:30,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b109030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:09:30, skipping insertion in model container [2024-10-11 17:09:30,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:09:30" (3/3) ... [2024-10-11 17:09:30,927 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-10-11 17:09:30,940 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:09:30,941 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-11 17:09:30,941 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:09:31,003 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 17:09:31,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 215 transitions, 444 flow [2024-10-11 17:09:31,117 INFO L124 PetriNetUnfolderBase]: 8/213 cut-off events. [2024-10-11 17:09:31,119 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:09:31,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 213 events. 8/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2024-10-11 17:09:31,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 215 transitions, 444 flow [2024-10-11 17:09:31,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 208 transitions, 425 flow [2024-10-11 17:09:31,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:09:31,149 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;@3c5bfec6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:09:31,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-10-11 17:09:31,168 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:09:31,168 INFO L124 PetriNetUnfolderBase]: 0/51 cut-off events. [2024-10-11 17:09:31,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:09:31,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:31,171 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] [2024-10-11 17:09:31,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:31,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash -477178526, now seen corresponding path program 1 times [2024-10-11 17:09:31,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:31,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816876367] [2024-10-11 17:09:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:31,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:31,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:31,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816876367] [2024-10-11 17:09:31,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816876367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:31,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:09:31,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047989383] [2024-10-11 17:09:31,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:31,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:31,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:31,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:31,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 215 [2024-10-11 17:09:31,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 208 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:31,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:31,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 215 [2024-10-11 17:09:31,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:33,065 INFO L124 PetriNetUnfolderBase]: 4355/15186 cut-off events. [2024-10-11 17:09:33,065 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-11 17:09:33,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22183 conditions, 15186 events. 4355/15186 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 167170 event pairs, 1643 based on Foata normal form. 962/14829 useless extension candidates. Maximal degree in co-relation 22057. Up to 4457 conditions per place. [2024-10-11 17:09:33,132 INFO L140 encePairwiseOnDemand]: 192/215 looper letters, 66 selfloop transitions, 10 changer transitions 0/224 dead transitions. [2024-10-11 17:09:33,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 224 transitions, 615 flow [2024-10-11 17:09:33,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2024-10-11 17:09:33,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8852713178294573 [2024-10-11 17:09:33,146 INFO L175 Difference]: Start difference. First operand has 207 places, 208 transitions, 425 flow. Second operand 3 states and 571 transitions. [2024-10-11 17:09:33,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 224 transitions, 615 flow [2024-10-11 17:09:33,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 224 transitions, 607 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 17:09:33,157 INFO L231 Difference]: Finished difference. Result has 198 places, 198 transitions, 462 flow [2024-10-11 17:09:33,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=198, PETRI_TRANSITIONS=198} [2024-10-11 17:09:33,162 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -9 predicate places. [2024-10-11 17:09:33,162 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 198 transitions, 462 flow [2024-10-11 17:09:33,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:33,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:33,163 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] [2024-10-11 17:09:33,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:09:33,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:33,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1757956060, now seen corresponding path program 1 times [2024-10-11 17:09:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:33,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302114303] [2024-10-11 17:09:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:33,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:33,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302114303] [2024-10-11 17:09:33,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302114303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:33,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:33,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:09:33,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464800637] [2024-10-11 17:09:33,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:33,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:33,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:33,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:33,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:33,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 215 [2024-10-11 17:09:33,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 198 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:33,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:33,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 215 [2024-10-11 17:09:33,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:34,578 INFO L124 PetriNetUnfolderBase]: 4773/14933 cut-off events. [2024-10-11 17:09:34,579 INFO L125 PetriNetUnfolderBase]: For 2287/2315 co-relation queries the response was YES. [2024-10-11 17:09:34,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24615 conditions, 14933 events. 4773/14933 cut-off events. For 2287/2315 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 162285 event pairs, 3453 based on Foata normal form. 28/13560 useless extension candidates. Maximal degree in co-relation 24457. Up to 6392 conditions per place. [2024-10-11 17:09:34,723 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 61 selfloop transitions, 8 changer transitions 0/224 dead transitions. [2024-10-11 17:09:34,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 224 transitions, 670 flow [2024-10-11 17:09:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:34,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2024-10-11 17:09:34,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8604651162790697 [2024-10-11 17:09:34,725 INFO L175 Difference]: Start difference. First operand has 198 places, 198 transitions, 462 flow. Second operand 3 states and 555 transitions. [2024-10-11 17:09:34,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 224 transitions, 670 flow [2024-10-11 17:09:34,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 224 transitions, 644 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:34,733 INFO L231 Difference]: Finished difference. Result has 200 places, 205 transitions, 514 flow [2024-10-11 17:09:34,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=200, PETRI_TRANSITIONS=205} [2024-10-11 17:09:34,734 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -7 predicate places. [2024-10-11 17:09:34,735 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 205 transitions, 514 flow [2024-10-11 17:09:34,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:34,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:34,735 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:34,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:09:34,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:34,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1039786127, now seen corresponding path program 1 times [2024-10-11 17:09:34,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:34,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830292079] [2024-10-11 17:09:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:34,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:34,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:34,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830292079] [2024-10-11 17:09:34,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830292079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:34,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:34,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:09:34,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760138583] [2024-10-11 17:09:34,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:34,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:34,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:34,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:34,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:34,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 215 [2024-10-11 17:09:34,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 205 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:34,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:34,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 215 [2024-10-11 17:09:34,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:36,564 INFO L124 PetriNetUnfolderBase]: 6874/23203 cut-off events. [2024-10-11 17:09:36,565 INFO L125 PetriNetUnfolderBase]: For 723/765 co-relation queries the response was YES. [2024-10-11 17:09:36,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35958 conditions, 23203 events. 6874/23203 cut-off events. For 723/765 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 278919 event pairs, 2705 based on Foata normal form. 14/21415 useless extension candidates. Maximal degree in co-relation 35833. Up to 5723 conditions per place. [2024-10-11 17:09:36,678 INFO L140 encePairwiseOnDemand]: 206/215 looper letters, 59 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-10-11 17:09:36,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 232 transitions, 699 flow [2024-10-11 17:09:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:36,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-10-11 17:09:36,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8682170542635659 [2024-10-11 17:09:36,680 INFO L175 Difference]: Start difference. First operand has 200 places, 205 transitions, 514 flow. Second operand 3 states and 560 transitions. [2024-10-11 17:09:36,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 232 transitions, 699 flow [2024-10-11 17:09:36,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 232 transitions, 683 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:36,686 INFO L231 Difference]: Finished difference. Result has 200 places, 207 transitions, 536 flow [2024-10-11 17:09:36,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=200, PETRI_TRANSITIONS=207} [2024-10-11 17:09:36,687 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -7 predicate places. [2024-10-11 17:09:36,687 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 207 transitions, 536 flow [2024-10-11 17:09:36,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:36,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:36,688 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] [2024-10-11 17:09:36,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:09:36,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:36,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1523394632, now seen corresponding path program 1 times [2024-10-11 17:09:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:36,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465907878] [2024-10-11 17:09:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:36,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:36,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:36,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465907878] [2024-10-11 17:09:36,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465907878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:36,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:36,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:09:36,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500388628] [2024-10-11 17:09:36,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:36,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:36,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:36,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:36,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:36,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2024-10-11 17:09:36,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 207 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:36,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:36,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2024-10-11 17:09:36,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:38,752 INFO L124 PetriNetUnfolderBase]: 7740/24641 cut-off events. [2024-10-11 17:09:38,752 INFO L125 PetriNetUnfolderBase]: For 3856/3962 co-relation queries the response was YES. [2024-10-11 17:09:38,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41371 conditions, 24641 events. 7740/24641 cut-off events. For 3856/3962 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 297555 event pairs, 5376 based on Foata normal form. 14/22559 useless extension candidates. Maximal degree in co-relation 41247. Up to 10216 conditions per place. [2024-10-11 17:09:38,849 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 57 selfloop transitions, 4 changer transitions 0/229 dead transitions. [2024-10-11 17:09:38,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 229 transitions, 707 flow [2024-10-11 17:09:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-10-11 17:09:38,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635658914728682 [2024-10-11 17:09:38,851 INFO L175 Difference]: Start difference. First operand has 200 places, 207 transitions, 536 flow. Second operand 3 states and 557 transitions. [2024-10-11 17:09:38,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 229 transitions, 707 flow [2024-10-11 17:09:38,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 229 transitions, 693 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:38,858 INFO L231 Difference]: Finished difference. Result has 202 places, 210 transitions, 556 flow [2024-10-11 17:09:38,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=202, PETRI_TRANSITIONS=210} [2024-10-11 17:09:38,859 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -5 predicate places. [2024-10-11 17:09:38,859 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 210 transitions, 556 flow [2024-10-11 17:09:38,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:38,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:38,860 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] [2024-10-11 17:09:38,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:09:38,860 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:38,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:38,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1476059165, now seen corresponding path program 1 times [2024-10-11 17:09:38,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592739401] [2024-10-11 17:09:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:39,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:39,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592739401] [2024-10-11 17:09:39,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592739401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:39,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:39,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744602475] [2024-10-11 17:09:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:39,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 17:09:39,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:39,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 17:09:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 17:09:39,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2024-10-11 17:09:39,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 210 transitions, 556 flow. Second operand has 5 states, 5 states have (on average 174.6) internal successors, (873), 5 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:39,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:39,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2024-10-11 17:09:39,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:40,066 INFO L124 PetriNetUnfolderBase]: 1980/10595 cut-off events. [2024-10-11 17:09:40,066 INFO L125 PetriNetUnfolderBase]: For 425/498 co-relation queries the response was YES. [2024-10-11 17:09:40,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15886 conditions, 10595 events. 1980/10595 cut-off events. For 425/498 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 124128 event pairs, 607 based on Foata normal form. 109/9923 useless extension candidates. Maximal degree in co-relation 15759. Up to 1748 conditions per place. [2024-10-11 17:09:40,109 INFO L140 encePairwiseOnDemand]: 207/215 looper letters, 44 selfloop transitions, 8 changer transitions 0/233 dead transitions. [2024-10-11 17:09:40,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 233 transitions, 708 flow [2024-10-11 17:09:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 17:09:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 17:09:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 919 transitions. [2024-10-11 17:09:40,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8548837209302326 [2024-10-11 17:09:40,112 INFO L175 Difference]: Start difference. First operand has 202 places, 210 transitions, 556 flow. Second operand 5 states and 919 transitions. [2024-10-11 17:09:40,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 233 transitions, 708 flow [2024-10-11 17:09:40,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 233 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:40,116 INFO L231 Difference]: Finished difference. Result has 205 places, 214 transitions, 586 flow [2024-10-11 17:09:40,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=586, PETRI_PLACES=205, PETRI_TRANSITIONS=214} [2024-10-11 17:09:40,117 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -2 predicate places. [2024-10-11 17:09:40,117 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 214 transitions, 586 flow [2024-10-11 17:09:40,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 174.6) internal successors, (873), 5 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:40,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:40,118 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] [2024-10-11 17:09:40,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:09:40,119 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:40,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:40,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1686946676, now seen corresponding path program 1 times [2024-10-11 17:09:40,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:40,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742919186] [2024-10-11 17:09:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:40,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:40,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:40,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742919186] [2024-10-11 17:09:40,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742919186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:40,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:40,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:09:40,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516176069] [2024-10-11 17:09:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:40,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:40,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:40,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:40,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 215 [2024-10-11 17:09:40,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 214 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:40,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:40,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 215 [2024-10-11 17:09:40,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:41,292 INFO L124 PetriNetUnfolderBase]: 3946/14426 cut-off events. [2024-10-11 17:09:41,293 INFO L125 PetriNetUnfolderBase]: For 3501/3511 co-relation queries the response was YES. [2024-10-11 17:09:41,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26551 conditions, 14426 events. 3946/14426 cut-off events. For 3501/3511 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 165817 event pairs, 2498 based on Foata normal form. 2/13437 useless extension candidates. Maximal degree in co-relation 26386. Up to 6071 conditions per place. [2024-10-11 17:09:41,360 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 70 selfloop transitions, 8 changer transitions 2/242 dead transitions. [2024-10-11 17:09:41,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 242 transitions, 840 flow [2024-10-11 17:09:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2024-10-11 17:09:41,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8604651162790697 [2024-10-11 17:09:41,362 INFO L175 Difference]: Start difference. First operand has 205 places, 214 transitions, 586 flow. Second operand 3 states and 555 transitions. [2024-10-11 17:09:41,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 242 transitions, 840 flow [2024-10-11 17:09:41,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 242 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:41,367 INFO L231 Difference]: Finished difference. Result has 207 places, 221 transitions, 665 flow [2024-10-11 17:09:41,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=665, PETRI_PLACES=207, PETRI_TRANSITIONS=221} [2024-10-11 17:09:41,369 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2024-10-11 17:09:41,369 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 221 transitions, 665 flow [2024-10-11 17:09:41,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:41,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:41,370 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] [2024-10-11 17:09:41,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:09:41,370 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:41,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1464912069, now seen corresponding path program 1 times [2024-10-11 17:09:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:41,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126579362] [2024-10-11 17:09:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:41,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:41,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126579362] [2024-10-11 17:09:41,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126579362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:41,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:41,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:09:41,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328059720] [2024-10-11 17:09:41,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:41,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:41,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:41,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:41,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:41,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2024-10-11 17:09:41,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 221 transitions, 665 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:41,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:41,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2024-10-11 17:09:41,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:42,567 INFO L124 PetriNetUnfolderBase]: 3679/15023 cut-off events. [2024-10-11 17:09:42,567 INFO L125 PetriNetUnfolderBase]: For 3682/3804 co-relation queries the response was YES. [2024-10-11 17:09:42,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27279 conditions, 15023 events. 3679/15023 cut-off events. For 3682/3804 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 176864 event pairs, 2162 based on Foata normal form. 4/13778 useless extension candidates. Maximal degree in co-relation 27144. Up to 5227 conditions per place. [2024-10-11 17:09:42,637 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 61 selfloop transitions, 4 changer transitions 3/245 dead transitions. [2024-10-11 17:09:42,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 245 transitions, 873 flow [2024-10-11 17:09:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-10-11 17:09:42,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635658914728682 [2024-10-11 17:09:42,639 INFO L175 Difference]: Start difference. First operand has 207 places, 221 transitions, 665 flow. Second operand 3 states and 557 transitions. [2024-10-11 17:09:42,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 245 transitions, 873 flow [2024-10-11 17:09:42,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 847 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:42,651 INFO L231 Difference]: Finished difference. Result has 209 places, 224 transitions, 673 flow [2024-10-11 17:09:42,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=673, PETRI_PLACES=209, PETRI_TRANSITIONS=224} [2024-10-11 17:09:42,651 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2024-10-11 17:09:42,651 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 224 transitions, 673 flow [2024-10-11 17:09:42,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:42,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:42,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:42,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:09:42,652 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:42,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1475972710, now seen corresponding path program 1 times [2024-10-11 17:09:42,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116524470] [2024-10-11 17:09:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:42,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:42,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:42,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116524470] [2024-10-11 17:09:42,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116524470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:42,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:42,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:42,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322341620] [2024-10-11 17:09:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:42,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 17:09:42,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:42,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 17:09:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 17:09:42,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2024-10-11 17:09:42,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 224 transitions, 673 flow. Second operand has 5 states, 5 states have (on average 175.6) internal successors, (878), 5 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:42,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:42,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2024-10-11 17:09:42,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:43,673 INFO L124 PetriNetUnfolderBase]: 1335/7857 cut-off events. [2024-10-11 17:09:43,673 INFO L125 PetriNetUnfolderBase]: For 1577/1625 co-relation queries the response was YES. [2024-10-11 17:09:43,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13361 conditions, 7857 events. 1335/7857 cut-off events. For 1577/1625 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 87412 event pairs, 374 based on Foata normal form. 24/7458 useless extension candidates. Maximal degree in co-relation 13225. Up to 1346 conditions per place. [2024-10-11 17:09:43,703 INFO L140 encePairwiseOnDemand]: 207/215 looper letters, 40 selfloop transitions, 10 changer transitions 13/250 dead transitions. [2024-10-11 17:09:43,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 250 transitions, 867 flow [2024-10-11 17:09:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 17:09:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 17:09:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 919 transitions. [2024-10-11 17:09:43,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8548837209302326 [2024-10-11 17:09:43,705 INFO L175 Difference]: Start difference. First operand has 209 places, 224 transitions, 673 flow. Second operand 5 states and 919 transitions. [2024-10-11 17:09:43,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 250 transitions, 867 flow [2024-10-11 17:09:43,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 250 transitions, 857 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:43,715 INFO L231 Difference]: Finished difference. Result has 212 places, 223 transitions, 699 flow [2024-10-11 17:09:43,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=699, PETRI_PLACES=212, PETRI_TRANSITIONS=223} [2024-10-11 17:09:43,716 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 5 predicate places. [2024-10-11 17:09:43,716 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 223 transitions, 699 flow [2024-10-11 17:09:43,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.6) internal successors, (878), 5 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:43,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:43,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:43,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:09:43,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:43,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash -67412236, now seen corresponding path program 1 times [2024-10-11 17:09:43,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:43,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906148400] [2024-10-11 17:09:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:43,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:43,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906148400] [2024-10-11 17:09:43,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906148400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:43,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:43,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:09:43,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000430238] [2024-10-11 17:09:43,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:43,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:09:43,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:09:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:09:43,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 215 [2024-10-11 17:09:43,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 223 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:43,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:43,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 215 [2024-10-11 17:09:43,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:44,514 INFO L124 PetriNetUnfolderBase]: 818/7273 cut-off events. [2024-10-11 17:09:44,514 INFO L125 PetriNetUnfolderBase]: For 2285/2317 co-relation queries the response was YES. [2024-10-11 17:09:44,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12563 conditions, 7273 events. 818/7273 cut-off events. For 2285/2317 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 80053 event pairs, 233 based on Foata normal form. 167/7150 useless extension candidates. Maximal degree in co-relation 7911. Up to 1260 conditions per place. [2024-10-11 17:09:44,536 INFO L140 encePairwiseOnDemand]: 195/215 looper letters, 24 selfloop transitions, 20 changer transitions 15/247 dead transitions. [2024-10-11 17:09:44,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 247 transitions, 931 flow [2024-10-11 17:09:44,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:09:44,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:09:44,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2024-10-11 17:09:44,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8930232558139535 [2024-10-11 17:09:44,538 INFO L175 Difference]: Start difference. First operand has 212 places, 223 transitions, 699 flow. Second operand 3 states and 576 transitions. [2024-10-11 17:09:44,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 247 transitions, 931 flow [2024-10-11 17:09:44,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 247 transitions, 928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:09:44,545 INFO L231 Difference]: Finished difference. Result has 213 places, 227 transitions, 789 flow [2024-10-11 17:09:44,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=789, PETRI_PLACES=213, PETRI_TRANSITIONS=227} [2024-10-11 17:09:44,546 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 6 predicate places. [2024-10-11 17:09:44,546 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 227 transitions, 789 flow [2024-10-11 17:09:44,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:44,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:44,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:44,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:09:44,547 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:44,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1420638874, now seen corresponding path program 2 times [2024-10-11 17:09:44,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:44,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389024602] [2024-10-11 17:09:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:44,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:44,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389024602] [2024-10-11 17:09:44,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389024602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:44,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:44,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 17:09:44,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966351558] [2024-10-11 17:09:44,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:44,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 17:09:44,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:44,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 17:09:44,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 17:09:44,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 215 [2024-10-11 17:09:44,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 227 transitions, 789 flow. Second operand has 7 states, 7 states have (on average 174.14285714285714) internal successors, (1219), 7 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:44,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:44,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 215 [2024-10-11 17:09:44,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:45,181 INFO L124 PetriNetUnfolderBase]: 149/2619 cut-off events. [2024-10-11 17:09:45,181 INFO L125 PetriNetUnfolderBase]: For 1537/1594 co-relation queries the response was YES. [2024-10-11 17:09:45,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4927 conditions, 2619 events. 149/2619 cut-off events. For 1537/1594 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 21453 event pairs, 65 based on Foata normal form. 37/2571 useless extension candidates. Maximal degree in co-relation 3375. Up to 426 conditions per place. [2024-10-11 17:09:45,187 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 27 selfloop transitions, 7 changer transitions 13/207 dead transitions. [2024-10-11 17:09:45,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 207 transitions, 773 flow [2024-10-11 17:09:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:45,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2024-10-11 17:09:45,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294573643410853 [2024-10-11 17:09:45,190 INFO L175 Difference]: Start difference. First operand has 213 places, 227 transitions, 789 flow. Second operand 6 states and 1070 transitions. [2024-10-11 17:09:45,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 207 transitions, 773 flow [2024-10-11 17:09:45,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 207 transitions, 713 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-10-11 17:09:45,196 INFO L231 Difference]: Finished difference. Result has 208 places, 190 transitions, 534 flow [2024-10-11 17:09:45,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=208, PETRI_TRANSITIONS=190} [2024-10-11 17:09:45,197 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 1 predicate places. [2024-10-11 17:09:45,197 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 190 transitions, 534 flow [2024-10-11 17:09:45,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 174.14285714285714) internal successors, (1219), 7 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:45,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:45,198 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:45,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:09:45,198 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-11 17:09:45,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1016827974, now seen corresponding path program 1 times [2024-10-11 17:09:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17441729] [2024-10-11 17:09:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:09:45,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17441729] [2024-10-11 17:09:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17441729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:45,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:09:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978066867] [2024-10-11 17:09:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:45,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:09:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:45,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:09:45,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:09:45,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 215 [2024-10-11 17:09:45,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 190 transitions, 534 flow. Second operand has 8 states, 8 states have (on average 174.5) internal successors, (1396), 8 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:45,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:45,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 215 [2024-10-11 17:09:45,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:45,791 INFO L124 PetriNetUnfolderBase]: 41/736 cut-off events. [2024-10-11 17:09:45,792 INFO L125 PetriNetUnfolderBase]: For 331/344 co-relation queries the response was YES. [2024-10-11 17:09:45,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 736 events. 41/736 cut-off events. For 331/344 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3539 event pairs, 14 based on Foata normal form. 2/718 useless extension candidates. Maximal degree in co-relation 1131. Up to 118 conditions per place. [2024-10-11 17:09:45,793 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 0 selfloop transitions, 0 changer transitions 190/190 dead transitions. [2024-10-11 17:09:45,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 190 transitions, 615 flow [2024-10-11 17:09:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:45,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:45,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1072 transitions. [2024-10-11 17:09:45,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8310077519379845 [2024-10-11 17:09:45,796 INFO L175 Difference]: Start difference. First operand has 208 places, 190 transitions, 534 flow. Second operand 6 states and 1072 transitions. [2024-10-11 17:09:45,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 190 transitions, 615 flow [2024-10-11 17:09:45,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 190 transitions, 564 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-10-11 17:09:45,799 INFO L231 Difference]: Finished difference. Result has 198 places, 0 transitions, 0 flow [2024-10-11 17:09:45,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=198, PETRI_TRANSITIONS=0} [2024-10-11 17:09:45,800 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -9 predicate places. [2024-10-11 17:09:45,800 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 0 transitions, 0 flow [2024-10-11 17:09:45,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 174.5) internal successors, (1396), 8 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:09:45,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2024-10-11 17:09:45,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-10-11 17:09:45,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-10-11 17:09:45,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-10-11 17:09:45,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-10-11 17:09:45,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-10-11 17:09:45,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-10-11 17:09:45,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-10-11 17:09:45,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 22 remaining) [2024-10-11 17:09:45,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 22 remaining) [2024-10-11 17:09:45,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-10-11 17:09:45,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-10-11 17:09:45,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-10-11 17:09:45,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-10-11 17:09:45,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-10-11 17:09:45,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-10-11 17:09:45,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-10-11 17:09:45,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-10-11 17:09:45,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-10-11 17:09:45,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-10-11 17:09:45,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-10-11 17:09:45,807 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-10-11 17:09:45,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:09:45,807 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:45,813 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:09:45,813 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:09:45,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:09:45 BasicIcfg [2024-10-11 17:09:45,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:09:45,818 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:09:45,818 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:09:45,818 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:09:45,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:09:30" (3/4) ... [2024-10-11 17:09:45,819 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:09:45,822 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-10-11 17:09:45,822 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 17:09:45,826 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-11 17:09:45,826 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 17:09:45,826 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:09:45,826 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 17:09:45,893 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:09:45,893 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:09:45,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:09:45,894 INFO L158 Benchmark]: Toolchain (without parser) took 15899.85ms. Allocated memory was 176.2MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 105.9MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-10-11 17:09:45,894 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 133.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:09:45,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.08ms. Allocated memory is still 176.2MB. Free memory was 105.7MB in the beginning and 133.2MB in the end (delta: -27.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-10-11 17:09:45,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.60ms. Allocated memory is still 176.2MB. Free memory was 133.2MB in the beginning and 131.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:09:45,895 INFO L158 Benchmark]: Boogie Preprocessor took 35.15ms. Allocated memory is still 176.2MB. Free memory was 131.2MB in the beginning and 129.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:09:45,895 INFO L158 Benchmark]: RCFGBuilder took 428.61ms. Allocated memory is still 176.2MB. Free memory was 129.1MB in the beginning and 103.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 17:09:45,895 INFO L158 Benchmark]: TraceAbstraction took 14896.20ms. Allocated memory was 176.2MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 103.0MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-10-11 17:09:45,896 INFO L158 Benchmark]: Witness Printer took 76.16ms. Allocated memory is still 4.8GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:09:45,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 133.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.08ms. Allocated memory is still 176.2MB. Free memory was 105.7MB in the beginning and 133.2MB in the end (delta: -27.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.60ms. Allocated memory is still 176.2MB. Free memory was 133.2MB in the beginning and 131.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.15ms. Allocated memory is still 176.2MB. Free memory was 131.2MB in the beginning and 129.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.61ms. Allocated memory is still 176.2MB. Free memory was 129.1MB in the beginning and 103.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14896.20ms. Allocated memory was 176.2MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 103.0MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 76.16ms. Allocated memory is still 4.8GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 286 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 909 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 643 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 149 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1458 IncrementalHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 149 mSolverCounterUnsat, 50 mSDtfsCounter, 1458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 780 NumberOfCodeBlocks, 780 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 2990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:09:45,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE