./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:54:02,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:54:02,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:54:02,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:54:02,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:54:02,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:54:02,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:54:02,401 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:54:02,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:54:02,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:54:02,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:54:02,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:54:02,403 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:54:02,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:54:02,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:54:02,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:54:02,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:54:02,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:54:02,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:54:02,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:54:02,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:54:02,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:54:02,406 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:54:02,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:54:02,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:54:02,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:54:02,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:54:02,407 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:54:02,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:54:02,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:54:02,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:54:02,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:54:02,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:54:02,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:54:02,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:54:02,408 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:54:02,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:54:02,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:54:02,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:54:02,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:54:02,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:54:02,410 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 [2024-11-22 17:54:02,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:54:02,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:54:02,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:54:02,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:54:02,627 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:54:02,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-11-22 17:54:03,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:54:04,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:54:04,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-11-22 17:54:04,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c75e3aa/f2164f5a7988417ba7142cfc81ef77b3/FLAG18318b4f1 [2024-11-22 17:54:04,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c75e3aa/f2164f5a7988417ba7142cfc81ef77b3 [2024-11-22 17:54:04,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:54:04,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:54:04,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:54:04,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:54:04,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:54:04,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:04,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47525fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04, skipping insertion in model container [2024-11-22 17:54:04,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:04,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:54:04,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:54:04,845 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:54:04,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:54:04,993 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:54:04,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04 WrapperNode [2024-11-22 17:54:04,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:54:04,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:54:04,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:54:04,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:54:05,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,067 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 345 [2024-11-22 17:54:05,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:54:05,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:54:05,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:54:05,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:54:05,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:54:05,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:54:05,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:54:05,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:54:05,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (1/1) ... [2024-11-22 17:54:05,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:54:05,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:54:05,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:54:05,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:54:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:54:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:54:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:54:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:54:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:54:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:54:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:54:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:54:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:54:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:54:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:54:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:54:05,218 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:54:05,329 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:54:05,331 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:54:05,742 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:54:05,742 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:54:05,782 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:54:05,783 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-22 17:54:05,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:54:05 BoogieIcfgContainer [2024-11-22 17:54:05,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:54:05,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:54:05,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:54:05,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:54:05,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:54:04" (1/3) ... [2024-11-22 17:54:05,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba3a1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:54:05, skipping insertion in model container [2024-11-22 17:54:05,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:54:04" (2/3) ... [2024-11-22 17:54:05,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba3a1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:54:05, skipping insertion in model container [2024-11-22 17:54:05,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:54:05" (3/3) ... [2024-11-22 17:54:05,790 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_74-tricky_address1_racefree.i [2024-11-22 17:54:05,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:54:05,803 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-22 17:54:05,803 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:54:05,871 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:54:05,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 351 transitions, 709 flow [2024-11-22 17:54:06,078 INFO L124 PetriNetUnfolderBase]: 48/480 cut-off events. [2024-11-22 17:54:06,078 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:54:06,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 480 events. 48/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1691 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2024-11-22 17:54:06,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 351 transitions, 709 flow [2024-11-22 17:54:06,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 351 transitions, 709 flow [2024-11-22 17:54:06,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:54:06,116 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;@75151095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:54:06,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-22 17:54:06,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:54:06,138 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-22 17:54:06,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:54:06,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:06,140 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] [2024-11-22 17:54:06,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:06,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:06,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1811379567, now seen corresponding path program 1 times [2024-11-22 17:54:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109734677] [2024-11-22 17:54:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:06,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109734677] [2024-11-22 17:54:06,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109734677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:54:06,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:54:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:54:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484597344] [2024-11-22 17:54:06,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:54:06,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:54:06,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:06,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:54:06,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:54:06,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 351 [2024-11-22 17:54:06,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 351 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:06,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:06,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 351 [2024-11-22 17:54:06,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:06,828 INFO L124 PetriNetUnfolderBase]: 85/1307 cut-off events. [2024-11-22 17:54:06,828 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-22 17:54:06,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1491 conditions, 1307 events. 85/1307 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8368 event pairs, 72 based on Foata normal form. 206/1398 useless extension candidates. Maximal degree in co-relation 1247. Up to 178 conditions per place. [2024-11-22 17:54:06,841 INFO L140 encePairwiseOnDemand]: 319/351 looper letters, 23 selfloop transitions, 2 changer transitions 1/319 dead transitions. [2024-11-22 17:54:06,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 319 transitions, 695 flow [2024-11-22 17:54:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:54:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:54:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2024-11-22 17:54:06,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8964862298195632 [2024-11-22 17:54:06,861 INFO L175 Difference]: Start difference. First operand has 321 places, 351 transitions, 709 flow. Second operand 3 states and 944 transitions. [2024-11-22 17:54:06,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 319 transitions, 695 flow [2024-11-22 17:54:06,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 319 transitions, 695 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:54:06,873 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 653 flow [2024-11-22 17:54:06,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=653, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2024-11-22 17:54:06,878 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, -1 predicate places. [2024-11-22 17:54:06,879 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 653 flow [2024-11-22 17:54:06,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:06,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:06,880 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] [2024-11-22 17:54:06,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:54:06,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:06,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2105922071, now seen corresponding path program 1 times [2024-11-22 17:54:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:06,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184004314] [2024-11-22 17:54:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:06,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:07,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:07,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184004314] [2024-11-22 17:54:07,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184004314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:54:07,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511109160] [2024-11-22 17:54:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:07,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:07,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:54:07,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:54:07,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:54:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:07,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:54:07,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:54:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:07,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:54:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:07,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511109160] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:54:07,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:54:07,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:54:07,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755575128] [2024-11-22 17:54:07,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:54:07,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:54:07,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:07,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:54:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:54:07,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 351 [2024-11-22 17:54:07,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 653 flow. Second operand has 10 states, 10 states have (on average 294.8) internal successors, (2948), 10 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:07,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:07,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 351 [2024-11-22 17:54:07,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:07,627 INFO L124 PetriNetUnfolderBase]: 85/1313 cut-off events. [2024-11-22 17:54:07,627 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-22 17:54:07,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 1313 events. 85/1313 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8349 event pairs, 72 based on Foata normal form. 2/1201 useless extension candidates. Maximal degree in co-relation 1421. Up to 178 conditions per place. [2024-11-22 17:54:07,635 INFO L140 encePairwiseOnDemand]: 345/351 looper letters, 27 selfloop transitions, 9 changer transitions 0/326 dead transitions. [2024-11-22 17:54:07,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 326 transitions, 743 flow [2024-11-22 17:54:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:54:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:54:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2675 transitions. [2024-11-22 17:54:07,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.846786957898069 [2024-11-22 17:54:07,663 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 653 flow. Second operand 9 states and 2675 transitions. [2024-11-22 17:54:07,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 326 transitions, 743 flow [2024-11-22 17:54:07,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 326 transitions, 741 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:54:07,668 INFO L231 Difference]: Finished difference. Result has 329 places, 324 transitions, 701 flow [2024-11-22 17:54:07,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=701, PETRI_PLACES=329, PETRI_TRANSITIONS=324} [2024-11-22 17:54:07,669 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 8 predicate places. [2024-11-22 17:54:07,670 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 324 transitions, 701 flow [2024-11-22 17:54:07,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 294.8) internal successors, (2948), 10 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:07,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:07,672 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:07,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:54:07,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:07,876 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:07,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash 799000855, now seen corresponding path program 2 times [2024-11-22 17:54:07,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:07,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483997038] [2024-11-22 17:54:07,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:54:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:07,910 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:54:07,911 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:54:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:54:08,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:08,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483997038] [2024-11-22 17:54:08,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483997038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:54:08,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:54:08,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:54:08,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074451965] [2024-11-22 17:54:08,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:54:08,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:54:08,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:08,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:54:08,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:54:08,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 351 [2024-11-22 17:54:08,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 324 transitions, 701 flow. Second operand has 6 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:08,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:08,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 351 [2024-11-22 17:54:08,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:09,429 INFO L124 PetriNetUnfolderBase]: 1365/5356 cut-off events. [2024-11-22 17:54:09,430 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-11-22 17:54:09,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8155 conditions, 5356 events. 1365/5356 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 47367 event pairs, 1033 based on Foata normal form. 0/4896 useless extension candidates. Maximal degree in co-relation 8031. Up to 2546 conditions per place. [2024-11-22 17:54:09,455 INFO L140 encePairwiseOnDemand]: 324/351 looper letters, 107 selfloop transitions, 86 changer transitions 0/441 dead transitions. [2024-11-22 17:54:09,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 441 transitions, 1321 flow [2024-11-22 17:54:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:54:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:54:09,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1658 transitions. [2024-11-22 17:54:09,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7872744539411206 [2024-11-22 17:54:09,459 INFO L175 Difference]: Start difference. First operand has 329 places, 324 transitions, 701 flow. Second operand 6 states and 1658 transitions. [2024-11-22 17:54:09,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 441 transitions, 1321 flow [2024-11-22 17:54:09,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 441 transitions, 1315 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 17:54:09,469 INFO L231 Difference]: Finished difference. Result has 338 places, 409 transitions, 1261 flow [2024-11-22 17:54:09,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1261, PETRI_PLACES=338, PETRI_TRANSITIONS=409} [2024-11-22 17:54:09,472 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 17 predicate places. [2024-11-22 17:54:09,472 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 409 transitions, 1261 flow [2024-11-22 17:54:09,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:09,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:09,473 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:09,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:54:09,473 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:09,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:09,474 INFO L85 PathProgramCache]: Analyzing trace with hash -362073577, now seen corresponding path program 1 times [2024-11-22 17:54:09,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:09,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283813560] [2024-11-22 17:54:09,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:54:09,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:09,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283813560] [2024-11-22 17:54:09,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283813560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:54:09,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:54:09,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:54:09,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041622178] [2024-11-22 17:54:09,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:54:09,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:54:09,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:09,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:54:09,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:54:09,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 351 [2024-11-22 17:54:09,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 409 transitions, 1261 flow. Second operand has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:09,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:09,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 351 [2024-11-22 17:54:09,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:09,851 INFO L124 PetriNetUnfolderBase]: 247/1956 cut-off events. [2024-11-22 17:54:09,851 INFO L125 PetriNetUnfolderBase]: For 152/174 co-relation queries the response was YES. [2024-11-22 17:54:09,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2846 conditions, 1956 events. 247/1956 cut-off events. For 152/174 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14786 event pairs, 88 based on Foata normal form. 1/1800 useless extension candidates. Maximal degree in co-relation 2720. Up to 235 conditions per place. [2024-11-22 17:54:09,859 INFO L140 encePairwiseOnDemand]: 348/351 looper letters, 30 selfloop transitions, 3 changer transitions 0/417 dead transitions. [2024-11-22 17:54:09,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 417 transitions, 1343 flow [2024-11-22 17:54:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:54:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:54:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-22 17:54:09,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8746438746438746 [2024-11-22 17:54:09,861 INFO L175 Difference]: Start difference. First operand has 338 places, 409 transitions, 1261 flow. Second operand 3 states and 921 transitions. [2024-11-22 17:54:09,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 417 transitions, 1343 flow [2024-11-22 17:54:09,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 417 transitions, 1343 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:54:09,868 INFO L231 Difference]: Finished difference. Result has 341 places, 409 transitions, 1272 flow [2024-11-22 17:54:09,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=1261, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=341, PETRI_TRANSITIONS=409} [2024-11-22 17:54:09,870 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 20 predicate places. [2024-11-22 17:54:09,870 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 409 transitions, 1272 flow [2024-11-22 17:54:09,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:09,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:09,871 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:09,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:54:09,871 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:09,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 710251857, now seen corresponding path program 1 times [2024-11-22 17:54:09,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:09,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727001732] [2024-11-22 17:54:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:09,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:54:10,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:10,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727001732] [2024-11-22 17:54:10,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727001732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:54:10,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108606906] [2024-11-22 17:54:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:10,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:10,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:54:10,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:54:10,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:54:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:10,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 17:54:10,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:54:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:54:10,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:54:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:54:10,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108606906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:54:10,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:54:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-22 17:54:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524404190] [2024-11-22 17:54:10,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:54:10,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 17:54:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:10,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 17:54:10,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-22 17:54:10,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 351 [2024-11-22 17:54:10,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 409 transitions, 1272 flow. Second operand has 18 states, 18 states have (on average 294.94444444444446) internal successors, (5309), 18 states have internal predecessors, (5309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:10,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:10,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 351 [2024-11-22 17:54:10,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:10,664 INFO L124 PetriNetUnfolderBase]: 225/1938 cut-off events. [2024-11-22 17:54:10,665 INFO L125 PetriNetUnfolderBase]: For 143/163 co-relation queries the response was YES. [2024-11-22 17:54:10,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2851 conditions, 1938 events. 225/1938 cut-off events. For 143/163 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14472 event pairs, 72 based on Foata normal form. 4/1800 useless extension candidates. Maximal degree in co-relation 2649. Up to 232 conditions per place. [2024-11-22 17:54:10,673 INFO L140 encePairwiseOnDemand]: 345/351 looper letters, 31 selfloop transitions, 21 changer transitions 0/427 dead transitions. [2024-11-22 17:54:10,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 427 transitions, 1464 flow [2024-11-22 17:54:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:54:10,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:54:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6209 transitions. [2024-11-22 17:54:10,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842355175688509 [2024-11-22 17:54:10,685 INFO L175 Difference]: Start difference. First operand has 341 places, 409 transitions, 1272 flow. Second operand 21 states and 6209 transitions. [2024-11-22 17:54:10,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 427 transitions, 1464 flow [2024-11-22 17:54:10,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 427 transitions, 1458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:54:10,695 INFO L231 Difference]: Finished difference. Result has 364 places, 422 transitions, 1396 flow [2024-11-22 17:54:10,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1396, PETRI_PLACES=364, PETRI_TRANSITIONS=422} [2024-11-22 17:54:10,696 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 43 predicate places. [2024-11-22 17:54:10,697 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 422 transitions, 1396 flow [2024-11-22 17:54:10,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 294.94444444444446) internal successors, (5309), 18 states have internal predecessors, (5309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:10,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:10,700 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:10,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 17:54:10,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:10,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:10,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:10,905 INFO L85 PathProgramCache]: Analyzing trace with hash 339355473, now seen corresponding path program 2 times [2024-11-22 17:54:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:10,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548638691] [2024-11-22 17:54:10,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:54:10,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:10,938 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 17:54:10,938 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:54:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:54:11,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:11,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548638691] [2024-11-22 17:54:11,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548638691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:54:11,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428333997] [2024-11-22 17:54:11,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:54:11,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:11,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:54:11,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:54:11,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 17:54:11,318 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 17:54:11,319 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:54:11,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 17:54:11,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:54:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:54:11,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:54:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:54:11,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428333997] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:54:11,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:54:11,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-22 17:54:11,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447421256] [2024-11-22 17:54:11,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:54:11,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 17:54:11,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:11,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 17:54:11,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-22 17:54:11,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 351 [2024-11-22 17:54:11,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 422 transitions, 1396 flow. Second operand has 23 states, 23 states have (on average 295.04347826086956) internal successors, (6786), 23 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:11,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:11,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 351 [2024-11-22 17:54:11,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:12,177 INFO L124 PetriNetUnfolderBase]: 225/1953 cut-off events. [2024-11-22 17:54:12,177 INFO L125 PetriNetUnfolderBase]: For 244/264 co-relation queries the response was YES. [2024-11-22 17:54:12,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2951 conditions, 1953 events. 225/1953 cut-off events. For 244/264 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14466 event pairs, 72 based on Foata normal form. 3/1814 useless extension candidates. Maximal degree in co-relation 2649. Up to 232 conditions per place. [2024-11-22 17:54:12,186 INFO L140 encePairwiseOnDemand]: 345/351 looper letters, 34 selfloop transitions, 30 changer transitions 0/439 dead transitions. [2024-11-22 17:54:12,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 439 transitions, 1652 flow [2024-11-22 17:54:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 17:54:12,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-22 17:54:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8857 transitions. [2024-11-22 17:54:12,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8411206077872745 [2024-11-22 17:54:12,201 INFO L175 Difference]: Start difference. First operand has 364 places, 422 transitions, 1396 flow. Second operand 30 states and 8857 transitions. [2024-11-22 17:54:12,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 439 transitions, 1652 flow [2024-11-22 17:54:12,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 439 transitions, 1622 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-22 17:54:12,209 INFO L231 Difference]: Finished difference. Result has 391 places, 432 transitions, 1524 flow [2024-11-22 17:54:12,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1524, PETRI_PLACES=391, PETRI_TRANSITIONS=432} [2024-11-22 17:54:12,210 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 70 predicate places. [2024-11-22 17:54:12,210 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 432 transitions, 1524 flow [2024-11-22 17:54:12,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 295.04347826086956) internal successors, (6786), 23 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:12,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:12,212 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:12,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 17:54:12,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:12,413 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-22 17:54:12,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:12,414 INFO L85 PathProgramCache]: Analyzing trace with hash 198394105, now seen corresponding path program 3 times [2024-11-22 17:54:12,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:12,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319594502] [2024-11-22 17:54:12,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:54:12,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:12,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-22 17:54:12,470 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-22 17:54:12,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:54:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:54:12,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:54:12,534 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:54:12,535 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-22 17:54:12,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-22 17:54:12,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-22 17:54:12,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-22 17:54:12,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-22 17:54:12,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-22 17:54:12,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-22 17:54:12,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-22 17:54:12,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-22 17:54:12,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-22 17:54:12,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-22 17:54:12,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-22 17:54:12,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:54:12,539 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-11-22 17:54:12,542 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:54:12,542 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 17:54:12,575 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 17:54:12,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 466 transitions, 948 flow [2024-11-22 17:54:12,654 INFO L124 PetriNetUnfolderBase]: 80/752 cut-off events. [2024-11-22 17:54:12,654 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-22 17:54:12,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 752 events. 80/752 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3383 event pairs, 0 based on Foata normal form. 0/636 useless extension candidates. Maximal degree in co-relation 482. Up to 12 conditions per place. [2024-11-22 17:54:12,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 423 places, 466 transitions, 948 flow [2024-11-22 17:54:12,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 466 transitions, 948 flow [2024-11-22 17:54:12,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:54:12,675 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;@75151095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:54:12,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-22 17:54:12,684 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:54:12,684 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-22 17:54:12,684 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:54:12,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:12,686 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] [2024-11-22 17:54:12,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 17:54:12,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash 192077871, now seen corresponding path program 1 times [2024-11-22 17:54:12,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:12,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434031095] [2024-11-22 17:54:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:12,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:12,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:12,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434031095] [2024-11-22 17:54:12,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434031095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:54:12,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:54:12,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:54:12,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776417285] [2024-11-22 17:54:12,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:54:12,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:54:12,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:54:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:54:12,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 466 [2024-11-22 17:54:12,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 466 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:12,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:12,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 466 [2024-11-22 17:54:12,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:14,362 INFO L124 PetriNetUnfolderBase]: 1580/11634 cut-off events. [2024-11-22 17:54:14,362 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-22 17:54:14,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14095 conditions, 11634 events. 1580/11634 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 138987 event pairs, 1464 based on Foata normal form. 2929/13660 useless extension candidates. Maximal degree in co-relation 12445. Up to 2408 conditions per place. [2024-11-22 17:54:14,437 INFO L140 encePairwiseOnDemand]: 421/466 looper letters, 33 selfloop transitions, 2 changer transitions 1/419 dead transitions. [2024-11-22 17:54:14,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 419 transitions, 924 flow [2024-11-22 17:54:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:54:14,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:54:14,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1240 transitions. [2024-11-22 17:54:14,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8869814020028612 [2024-11-22 17:54:14,440 INFO L175 Difference]: Start difference. First operand has 423 places, 466 transitions, 948 flow. Second operand 3 states and 1240 transitions. [2024-11-22 17:54:14,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 419 transitions, 924 flow [2024-11-22 17:54:14,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 924 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:54:14,446 INFO L231 Difference]: Finished difference. Result has 420 places, 418 transitions, 862 flow [2024-11-22 17:54:14,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=420, PETRI_TRANSITIONS=418} [2024-11-22 17:54:14,447 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, -3 predicate places. [2024-11-22 17:54:14,448 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 418 transitions, 862 flow [2024-11-22 17:54:14,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:14,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:14,448 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] [2024-11-22 17:54:14,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:54:14,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 17:54:14,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:14,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1765749591, now seen corresponding path program 1 times [2024-11-22 17:54:14,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:14,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345901002] [2024-11-22 17:54:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:14,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:14,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:14,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:14,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345901002] [2024-11-22 17:54:14,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345901002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:54:14,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979537789] [2024-11-22 17:54:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:14,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:14,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:54:14,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:54:14,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 17:54:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:14,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:54:14,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:54:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:14,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:54:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:54:14,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979537789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:54:14,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:54:14,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:54:14,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944664621] [2024-11-22 17:54:14,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:54:14,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:54:14,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:14,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:54:14,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:54:14,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 466 [2024-11-22 17:54:14,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 418 transitions, 862 flow. Second operand has 10 states, 10 states have (on average 385.8) internal successors, (3858), 10 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:14,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:14,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 466 [2024-11-22 17:54:14,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:16,161 INFO L124 PetriNetUnfolderBase]: 1580/11640 cut-off events. [2024-11-22 17:54:16,162 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-22 17:54:16,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14120 conditions, 11640 events. 1580/11640 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 139075 event pairs, 1464 based on Foata normal form. 2/10740 useless extension candidates. Maximal degree in co-relation 14024. Up to 2408 conditions per place. [2024-11-22 17:54:16,237 INFO L140 encePairwiseOnDemand]: 460/466 looper letters, 37 selfloop transitions, 9 changer transitions 0/426 dead transitions. [2024-11-22 17:54:16,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 426 transitions, 972 flow [2024-11-22 17:54:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:54:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:54:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3504 transitions. [2024-11-22 17:54:16,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354792560801144 [2024-11-22 17:54:16,244 INFO L175 Difference]: Start difference. First operand has 420 places, 418 transitions, 862 flow. Second operand 9 states and 3504 transitions. [2024-11-22 17:54:16,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 426 transitions, 972 flow [2024-11-22 17:54:16,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 426 transitions, 970 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:54:16,250 INFO L231 Difference]: Finished difference. Result has 429 places, 424 transitions, 910 flow [2024-11-22 17:54:16,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=910, PETRI_PLACES=429, PETRI_TRANSITIONS=424} [2024-11-22 17:54:16,253 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 6 predicate places. [2024-11-22 17:54:16,253 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 424 transitions, 910 flow [2024-11-22 17:54:16,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 385.8) internal successors, (3858), 10 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:16,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:16,255 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:16,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 17:54:16,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:54:16,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 17:54:16,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:16,456 INFO L85 PathProgramCache]: Analyzing trace with hash -196495255, now seen corresponding path program 2 times [2024-11-22 17:54:16,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:16,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540670570] [2024-11-22 17:54:16,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:54:16,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:16,478 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:54:16,478 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:54:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:54:16,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:16,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540670570] [2024-11-22 17:54:16,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540670570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:54:16,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:54:16,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:54:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960285610] [2024-11-22 17:54:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:54:16,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:54:16,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:54:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:54:17,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 466 [2024-11-22 17:54:17,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 424 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 316.5) internal successors, (1899), 6 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:17,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:17,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 466 [2024-11-22 17:54:17,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:54:42,026 INFO L124 PetriNetUnfolderBase]: 83051/197080 cut-off events. [2024-11-22 17:54:42,026 INFO L125 PetriNetUnfolderBase]: For 1137/1144 co-relation queries the response was YES. [2024-11-22 17:54:42,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322130 conditions, 197080 events. 83051/197080 cut-off events. For 1137/1144 co-relation queries the response was YES. Maximal size of possible extension queue 3747. Compared 2610081 event pairs, 58924 based on Foata normal form. 0/184105 useless extension candidates. Maximal degree in co-relation 322005. Up to 116912 conditions per place. [2024-11-22 17:54:43,451 INFO L140 encePairwiseOnDemand]: 419/466 looper letters, 170 selfloop transitions, 166 changer transitions 0/654 dead transitions. [2024-11-22 17:54:43,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 654 transitions, 2047 flow [2024-11-22 17:54:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:54:43,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:54:43,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2227 transitions. [2024-11-22 17:54:43,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7964949928469242 [2024-11-22 17:54:43,455 INFO L175 Difference]: Start difference. First operand has 429 places, 424 transitions, 910 flow. Second operand 6 states and 2227 transitions. [2024-11-22 17:54:43,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 654 transitions, 2047 flow [2024-11-22 17:54:43,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 654 transitions, 2041 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 17:54:43,477 INFO L231 Difference]: Finished difference. Result has 438 places, 589 transitions, 1990 flow [2024-11-22 17:54:43,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1990, PETRI_PLACES=438, PETRI_TRANSITIONS=589} [2024-11-22 17:54:43,478 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 15 predicate places. [2024-11-22 17:54:43,478 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 589 transitions, 1990 flow [2024-11-22 17:54:43,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.5) internal successors, (1899), 6 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:43,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:54:43,479 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:54:43,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:54:43,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-22 17:54:43,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:54:43,480 INFO L85 PathProgramCache]: Analyzing trace with hash -451355991, now seen corresponding path program 1 times [2024-11-22 17:54:43,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:54:43,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423046291] [2024-11-22 17:54:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:54:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:54:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:54:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:54:43,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:54:43,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423046291] [2024-11-22 17:54:43,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423046291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:54:43,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:54:43,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:54:43,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406709133] [2024-11-22 17:54:43,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:54:43,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:54:43,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:54:43,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:54:43,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:54:43,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 466 [2024-11-22 17:54:43,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 589 transitions, 1990 flow. Second operand has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:54:43,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:54:43,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 466 [2024-11-22 17:54:43,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand