./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/04-mutex_04-munge_nr.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 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:03:40,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:03:40,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:03:40,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:03:40,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:03:40,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:03:40,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:03:40,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:03:40,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:03:40,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:03:40,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:03:40,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:03:40,637 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:03:40,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:03:40,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:03:40,637 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:03:40,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:03:40,638 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:03:40,639 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:03:40,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:03:40,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:03:40,640 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 [2025-03-17 11:03:40,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:03:40,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:03:40,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:03:40,920 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:03:40,920 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:03:40,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2025-03-17 11:03:42,097 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d034c90/f8d98f25fec340a8b46219a2ec0f76e9/FLAG8691463c3 [2025-03-17 11:03:42,376 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:03:42,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2025-03-17 11:03:42,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d034c90/f8d98f25fec340a8b46219a2ec0f76e9/FLAG8691463c3 [2025-03-17 11:03:42,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d034c90/f8d98f25fec340a8b46219a2ec0f76e9 [2025-03-17 11:03:42,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:03:42,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:03:42,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:03:42,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:03:42,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:03:42,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:03:42" (1/1) ... [2025-03-17 11:03:42,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64812bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:42, skipping insertion in model container [2025-03-17 11:03:42,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:03:42" (1/1) ... [2025-03-17 11:03:42,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:03:42,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:03:43,009 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:03:43,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:03:43,108 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:03:43,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43 WrapperNode [2025-03-17 11:03:43,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:03:43,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:03:43,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:03:43,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:03:43,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,140 INFO L138 Inliner]: procedures = 263, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2025-03-17 11:03:43,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:03:43,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:03:43,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:03:43,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:03:43,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:03:43,153 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:03:43,153 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:03:43,153 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:03:43,154 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (1/1) ... [2025-03-17 11:03:43,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:03:43,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:03:43,178 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) [2025-03-17 11:03:43,181 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 [2025-03-17 11:03:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 11:03:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 11:03:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:03:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 11:03:43,200 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 11:03:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:03:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:03:43,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:03:43,201 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:03:43,302 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:03:43,303 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:03:43,433 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:03:43,433 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:03:43,455 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:03:43,457 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:03:43,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:03:43 BoogieIcfgContainer [2025-03-17 11:03:43,457 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:03:43,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:03:43,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:03:43,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:03:43,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:03:42" (1/3) ... [2025-03-17 11:03:43,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8c279d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:03:43, skipping insertion in model container [2025-03-17 11:03:43,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:03:43" (2/3) ... [2025-03-17 11:03:43,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8c279d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:03:43, skipping insertion in model container [2025-03-17 11:03:43,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:03:43" (3/3) ... [2025-03-17 11:03:43,466 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2025-03-17 11:03:43,478 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:03:43,479 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_04-munge_nr.i that has 2 procedures, 65 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-17 11:03:43,480 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:03:43,528 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 11:03:43,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 135 flow [2025-03-17 11:03:43,591 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2025-03-17 11:03:43,593 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:03:43,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 0/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-17 11:03:43,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 64 transitions, 135 flow [2025-03-17 11:03:43,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2025-03-17 11:03:43,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:03:43,617 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;@56c71188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:03:43,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-17 11:03:43,632 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:03:43,633 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-03-17 11:03:43,633 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:03:43,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:43,633 INFO L206 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] [2025-03-17 11:03:43,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:43,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:43,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1377528997, now seen corresponding path program 1 times [2025-03-17 11:03:43,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:43,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559200719] [2025-03-17 11:03:43,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:03:43,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:43,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 11:03:43,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 11:03:43,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:03:43,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:43,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:43,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559200719] [2025-03-17 11:03:43,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559200719] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:43,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:43,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:03:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417551599] [2025-03-17 11:03:43,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:43,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:03:43,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:43,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:03:43,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:03:43,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 64 [2025-03-17 11:03:43,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2025-03-17 11:03:43,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:43,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 64 [2025-03-17 11:03:43,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:43,958 INFO L124 PetriNetUnfolderBase]: 31/195 cut-off events. [2025-03-17 11:03:43,960 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:03:43,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 195 events. 31/195 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 819 event pairs, 13 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 256. Up to 44 conditions per place. [2025-03-17 11:03:43,963 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 17 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2025-03-17 11:03:43,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 68 transitions, 185 flow [2025-03-17 11:03:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:03:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:03:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2025-03-17 11:03:43,977 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9114583333333334 [2025-03-17 11:03:43,978 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 3 states and 175 transitions. [2025-03-17 11:03:43,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 68 transitions, 185 flow [2025-03-17 11:03:43,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 68 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:03:43,984 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 170 flow [2025-03-17 11:03:43,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2025-03-17 11:03:43,989 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2025-03-17 11:03:43,991 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 170 flow [2025-03-17 11:03:43,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2025-03-17 11:03:43,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:43,991 INFO L206 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] [2025-03-17 11:03:43,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:03:43,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:43,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash 949897245, now seen corresponding path program 1 times [2025-03-17 11:03:43,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:43,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707496315] [2025-03-17 11:03:43,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:03:43,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:44,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 11:03:44,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 11:03:44,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:03:44,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:44,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:44,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707496315] [2025-03-17 11:03:44,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707496315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:44,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:44,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:03:44,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083070765] [2025-03-17 11:03:44,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:44,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:03:44,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:44,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:03:44,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:03:44,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2025-03-17 11:03:44,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2025-03-17 11:03:44,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:44,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2025-03-17 11:03:44,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:44,157 INFO L124 PetriNetUnfolderBase]: 56/263 cut-off events. [2025-03-17 11:03:44,158 INFO L125 PetriNetUnfolderBase]: For 107/115 co-relation queries the response was YES. [2025-03-17 11:03:44,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 263 events. 56/263 cut-off events. For 107/115 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1284 event pairs, 30 based on Foata normal form. 4/251 useless extension candidates. Maximal degree in co-relation 476. Up to 108 conditions per place. [2025-03-17 11:03:44,160 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 18 selfloop transitions, 7 changer transitions 1/71 dead transitions. [2025-03-17 11:03:44,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 71 transitions, 246 flow [2025-03-17 11:03:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:03:44,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:03:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2025-03-17 11:03:44,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2025-03-17 11:03:44,161 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 170 flow. Second operand 3 states and 166 transitions. [2025-03-17 11:03:44,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 71 transitions, 246 flow [2025-03-17 11:03:44,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 71 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:03:44,164 INFO L231 Difference]: Finished difference. Result has 67 places, 69 transitions, 214 flow [2025-03-17 11:03:44,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=67, PETRI_TRANSITIONS=69} [2025-03-17 11:03:44,164 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2025-03-17 11:03:44,164 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 69 transitions, 214 flow [2025-03-17 11:03:44,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2025-03-17 11:03:44,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:44,165 INFO L206 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] [2025-03-17 11:03:44,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:03:44,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:44,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:44,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2127270045, now seen corresponding path program 1 times [2025-03-17 11:03:44,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:44,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194879243] [2025-03-17 11:03:44,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:03:44,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:44,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 11:03:44,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 11:03:44,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:03:44,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:44,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:44,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194879243] [2025-03-17 11:03:44,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194879243] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:44,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:44,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:03:44,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521048892] [2025-03-17 11:03:44,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:44,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:03:44,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:44,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:03:44,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:03:44,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2025-03-17 11:03:44,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2025-03-17 11:03:44,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:44,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2025-03-17 11:03:44,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:44,279 INFO L124 PetriNetUnfolderBase]: 69/302 cut-off events. [2025-03-17 11:03:44,279 INFO L125 PetriNetUnfolderBase]: For 223/230 co-relation queries the response was YES. [2025-03-17 11:03:44,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 302 events. 69/302 cut-off events. For 223/230 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1516 event pairs, 30 based on Foata normal form. 2/289 useless extension candidates. Maximal degree in co-relation 627. Up to 125 conditions per place. [2025-03-17 11:03:44,283 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 17 selfloop transitions, 7 changer transitions 7/76 dead transitions. [2025-03-17 11:03:44,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 76 transitions, 300 flow [2025-03-17 11:03:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:03:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:03:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2025-03-17 11:03:44,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2025-03-17 11:03:44,286 INFO L175 Difference]: Start difference. First operand has 67 places, 69 transitions, 214 flow. Second operand 3 states and 166 transitions. [2025-03-17 11:03:44,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 76 transitions, 300 flow [2025-03-17 11:03:44,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:03:44,288 INFO L231 Difference]: Finished difference. Result has 69 places, 68 transitions, 232 flow [2025-03-17 11:03:44,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=69, PETRI_TRANSITIONS=68} [2025-03-17 11:03:44,289 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2025-03-17 11:03:44,289 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 232 flow [2025-03-17 11:03:44,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2025-03-17 11:03:44,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:44,289 INFO L206 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] [2025-03-17 11:03:44,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:03:44,290 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:44,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1793524779, now seen corresponding path program 1 times [2025-03-17 11:03:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:44,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364668032] [2025-03-17 11:03:44,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:03:44,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:44,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:44,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:44,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:03:44,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:44,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:44,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364668032] [2025-03-17 11:03:44,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364668032] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:44,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:44,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:44,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423484376] [2025-03-17 11:03:44,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:44,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:44,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:44,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:44,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:44,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:44,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:44,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:44,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:44,796 INFO L124 PetriNetUnfolderBase]: 72/420 cut-off events. [2025-03-17 11:03:44,796 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2025-03-17 11:03:44,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 420 events. 72/420 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2410 event pairs, 10 based on Foata normal form. 1/412 useless extension candidates. Maximal degree in co-relation 835. Up to 54 conditions per place. [2025-03-17 11:03:44,798 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 17 selfloop transitions, 14 changer transitions 21/104 dead transitions. [2025-03-17 11:03:44,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 104 transitions, 408 flow [2025-03-17 11:03:44,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 11:03:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 11:03:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 570 transitions. [2025-03-17 11:03:44,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8096590909090909 [2025-03-17 11:03:44,802 INFO L175 Difference]: Start difference. First operand has 69 places, 68 transitions, 232 flow. Second operand 11 states and 570 transitions. [2025-03-17 11:03:44,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 104 transitions, 408 flow [2025-03-17 11:03:44,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 104 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:03:44,808 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 264 flow [2025-03-17 11:03:44,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=264, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2025-03-17 11:03:44,809 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2025-03-17 11:03:44,809 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 264 flow [2025-03-17 11:03:44,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:44,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:44,809 INFO L206 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] [2025-03-17 11:03:44,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:03:44,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:44,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:44,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1319855285, now seen corresponding path program 2 times [2025-03-17 11:03:44,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:44,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247232310] [2025-03-17 11:03:44,811 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:03:44,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:44,819 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:44,822 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:44,825 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:03:44,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:44,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:44,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247232310] [2025-03-17 11:03:44,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247232310] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:44,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:44,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:44,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594860981] [2025-03-17 11:03:44,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:44,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:44,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:44,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:44,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:45,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:45,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:45,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:45,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:45,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:45,198 INFO L124 PetriNetUnfolderBase]: 33/303 cut-off events. [2025-03-17 11:03:45,198 INFO L125 PetriNetUnfolderBase]: For 142/147 co-relation queries the response was YES. [2025-03-17 11:03:45,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 303 events. 33/303 cut-off events. For 142/147 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1563 event pairs, 5 based on Foata normal form. 7/303 useless extension candidates. Maximal degree in co-relation 633. Up to 44 conditions per place. [2025-03-17 11:03:45,199 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 18 selfloop transitions, 9 changer transitions 11/90 dead transitions. [2025-03-17 11:03:45,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 90 transitions, 397 flow [2025-03-17 11:03:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:03:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:03:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 460 transitions. [2025-03-17 11:03:45,201 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7986111111111112 [2025-03-17 11:03:45,201 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 264 flow. Second operand 9 states and 460 transitions. [2025-03-17 11:03:45,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 90 transitions, 397 flow [2025-03-17 11:03:45,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 90 transitions, 395 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-17 11:03:45,206 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 289 flow [2025-03-17 11:03:45,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=289, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2025-03-17 11:03:45,206 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 27 predicate places. [2025-03-17 11:03:45,208 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 289 flow [2025-03-17 11:03:45,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:45,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:45,209 INFO L206 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] [2025-03-17 11:03:45,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:03:45,210 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:45,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:45,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1776897979, now seen corresponding path program 3 times [2025-03-17 11:03:45,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:45,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971540565] [2025-03-17 11:03:45,211 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:03:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:45,221 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:45,223 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:45,223 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:03:45,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:45,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:45,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971540565] [2025-03-17 11:03:45,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971540565] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:45,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:45,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:45,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453884359] [2025-03-17 11:03:45,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:45,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:45,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:45,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:45,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:45,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:45,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 289 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:45,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:45,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:45,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:45,593 INFO L124 PetriNetUnfolderBase]: 59/444 cut-off events. [2025-03-17 11:03:45,593 INFO L125 PetriNetUnfolderBase]: For 395/404 co-relation queries the response was YES. [2025-03-17 11:03:45,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 444 events. 59/444 cut-off events. For 395/404 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2798 event pairs, 7 based on Foata normal form. 5/437 useless extension candidates. Maximal degree in co-relation 1055. Up to 70 conditions per place. [2025-03-17 11:03:45,595 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 18 selfloop transitions, 19 changer transitions 3/92 dead transitions. [2025-03-17 11:03:45,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 466 flow [2025-03-17 11:03:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:03:45,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:03:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 510 transitions. [2025-03-17 11:03:45,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.796875 [2025-03-17 11:03:45,597 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 289 flow. Second operand 10 states and 510 transitions. [2025-03-17 11:03:45,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 466 flow [2025-03-17 11:03:45,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 92 transitions, 410 flow, removed 6 selfloop flow, removed 9 redundant places. [2025-03-17 11:03:45,599 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 368 flow [2025-03-17 11:03:45,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=368, PETRI_PLACES=88, PETRI_TRANSITIONS=81} [2025-03-17 11:03:45,600 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2025-03-17 11:03:45,600 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 368 flow [2025-03-17 11:03:45,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:45,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:45,601 INFO L206 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] [2025-03-17 11:03:45,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:03:45,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:45,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1060001797, now seen corresponding path program 4 times [2025-03-17 11:03:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:45,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712121089] [2025-03-17 11:03:45,602 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:03:45,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:45,607 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 37 statements into 2 equivalence classes. [2025-03-17 11:03:45,610 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 34 of 37 statements. [2025-03-17 11:03:45,610 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 11:03:45,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:45,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:45,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712121089] [2025-03-17 11:03:45,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712121089] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:45,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:45,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:45,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471975496] [2025-03-17 11:03:45,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:45,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:45,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:45,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:45,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:45,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:45,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 81 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:45,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:45,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:45,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:45,930 INFO L124 PetriNetUnfolderBase]: 94/661 cut-off events. [2025-03-17 11:03:45,930 INFO L125 PetriNetUnfolderBase]: For 769/784 co-relation queries the response was YES. [2025-03-17 11:03:45,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 661 events. 94/661 cut-off events. For 769/784 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4866 event pairs, 14 based on Foata normal form. 11/652 useless extension candidates. Maximal degree in co-relation 1616. Up to 106 conditions per place. [2025-03-17 11:03:45,933 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 26 selfloop transitions, 22 changer transitions 8/108 dead transitions. [2025-03-17 11:03:45,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 108 transitions, 632 flow [2025-03-17 11:03:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:03:45,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:03:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 468 transitions. [2025-03-17 11:03:45,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8125 [2025-03-17 11:03:45,935 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 368 flow. Second operand 9 states and 468 transitions. [2025-03-17 11:03:45,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 108 transitions, 632 flow [2025-03-17 11:03:45,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 108 transitions, 611 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 11:03:45,939 INFO L231 Difference]: Finished difference. Result has 99 places, 90 transitions, 501 flow [2025-03-17 11:03:45,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=501, PETRI_PLACES=99, PETRI_TRANSITIONS=90} [2025-03-17 11:03:45,941 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 37 predicate places. [2025-03-17 11:03:45,941 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 90 transitions, 501 flow [2025-03-17 11:03:45,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:45,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:45,942 INFO L206 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] [2025-03-17 11:03:45,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:03:45,942 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:45,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash -843654129, now seen corresponding path program 5 times [2025-03-17 11:03:45,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:45,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929400771] [2025-03-17 11:03:45,944 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:03:45,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:45,952 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:45,956 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:45,957 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:03:45,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:46,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:46,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929400771] [2025-03-17 11:03:46,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929400771] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:46,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:46,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840648028] [2025-03-17 11:03:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:46,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:46,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:46,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:46,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:46,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 501 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:46,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:46,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:46,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:46,284 INFO L124 PetriNetUnfolderBase]: 91/634 cut-off events. [2025-03-17 11:03:46,285 INFO L125 PetriNetUnfolderBase]: For 1265/1285 co-relation queries the response was YES. [2025-03-17 11:03:46,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 634 events. 91/634 cut-off events. For 1265/1285 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4603 event pairs, 14 based on Foata normal form. 12/624 useless extension candidates. Maximal degree in co-relation 1696. Up to 100 conditions per place. [2025-03-17 11:03:46,288 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 23 selfloop transitions, 22 changer transitions 9/106 dead transitions. [2025-03-17 11:03:46,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 712 flow [2025-03-17 11:03:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:03:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:03:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 465 transitions. [2025-03-17 11:03:46,293 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8072916666666666 [2025-03-17 11:03:46,293 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 501 flow. Second operand 9 states and 465 transitions. [2025-03-17 11:03:46,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 712 flow [2025-03-17 11:03:46,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 106 transitions, 686 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-03-17 11:03:46,299 INFO L231 Difference]: Finished difference. Result has 105 places, 89 transitions, 553 flow [2025-03-17 11:03:46,299 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=553, PETRI_PLACES=105, PETRI_TRANSITIONS=89} [2025-03-17 11:03:46,299 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 43 predicate places. [2025-03-17 11:03:46,299 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 89 transitions, 553 flow [2025-03-17 11:03:46,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:46,300 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:46,300 INFO L206 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] [2025-03-17 11:03:46,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 11:03:46,300 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:46,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:46,301 INFO L85 PathProgramCache]: Analyzing trace with hash 353726229, now seen corresponding path program 6 times [2025-03-17 11:03:46,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:46,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976361873] [2025-03-17 11:03:46,301 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 11:03:46,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:46,307 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:46,311 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:46,311 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 11:03:46,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:46,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:46,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976361873] [2025-03-17 11:03:46,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976361873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:46,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:46,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:46,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081044354] [2025-03-17 11:03:46,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:46,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:46,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:46,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:46,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:46,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 89 transitions, 553 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:46,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:46,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:46,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:46,619 INFO L124 PetriNetUnfolderBase]: 88/608 cut-off events. [2025-03-17 11:03:46,620 INFO L125 PetriNetUnfolderBase]: For 1856/1876 co-relation queries the response was YES. [2025-03-17 11:03:46,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1739 conditions, 608 events. 88/608 cut-off events. For 1856/1876 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4359 event pairs, 12 based on Foata normal form. 8/596 useless extension candidates. Maximal degree in co-relation 1710. Up to 96 conditions per place. [2025-03-17 11:03:46,622 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 23 selfloop transitions, 24 changer transitions 2/101 dead transitions. [2025-03-17 11:03:46,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 101 transitions, 722 flow [2025-03-17 11:03:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:03:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:03:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 516 transitions. [2025-03-17 11:03:46,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.80625 [2025-03-17 11:03:46,624 INFO L175 Difference]: Start difference. First operand has 105 places, 89 transitions, 553 flow. Second operand 10 states and 516 transitions. [2025-03-17 11:03:46,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 101 transitions, 722 flow [2025-03-17 11:03:46,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 650 flow, removed 12 selfloop flow, removed 8 redundant places. [2025-03-17 11:03:46,629 INFO L231 Difference]: Finished difference. Result has 107 places, 93 transitions, 602 flow [2025-03-17 11:03:46,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=602, PETRI_PLACES=107, PETRI_TRANSITIONS=93} [2025-03-17 11:03:46,630 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 45 predicate places. [2025-03-17 11:03:46,630 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 93 transitions, 602 flow [2025-03-17 11:03:46,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:46,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:46,631 INFO L206 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] [2025-03-17 11:03:46,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 11:03:46,631 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:46,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:46,632 INFO L85 PathProgramCache]: Analyzing trace with hash 526238553, now seen corresponding path program 7 times [2025-03-17 11:03:46,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:46,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639442010] [2025-03-17 11:03:46,632 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:03:46,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:46,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:46,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:46,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:03:46,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:46,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:46,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:46,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639442010] [2025-03-17 11:03:46,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639442010] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:46,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:46,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:46,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819460105] [2025-03-17 11:03:46,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:46,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:46,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:46,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:46,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:46,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:46,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 93 transitions, 602 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:46,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:46,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:46,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:46,923 INFO L124 PetriNetUnfolderBase]: 59/469 cut-off events. [2025-03-17 11:03:46,924 INFO L125 PetriNetUnfolderBase]: For 1278/1295 co-relation queries the response was YES. [2025-03-17 11:03:46,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 469 events. 59/469 cut-off events. For 1278/1295 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2988 event pairs, 9 based on Foata normal form. 7/462 useless extension candidates. Maximal degree in co-relation 1306. Up to 72 conditions per place. [2025-03-17 11:03:46,926 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 19 selfloop transitions, 14 changer transitions 8/93 dead transitions. [2025-03-17 11:03:46,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 93 transitions, 636 flow [2025-03-17 11:03:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:03:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:03:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 462 transitions. [2025-03-17 11:03:46,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2025-03-17 11:03:46,930 INFO L175 Difference]: Start difference. First operand has 107 places, 93 transitions, 602 flow. Second operand 9 states and 462 transitions. [2025-03-17 11:03:46,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 93 transitions, 636 flow [2025-03-17 11:03:46,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 93 transitions, 596 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-03-17 11:03:46,936 INFO L231 Difference]: Finished difference. Result has 109 places, 83 transitions, 471 flow [2025-03-17 11:03:46,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=471, PETRI_PLACES=109, PETRI_TRANSITIONS=83} [2025-03-17 11:03:46,937 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 47 predicate places. [2025-03-17 11:03:46,937 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 83 transitions, 471 flow [2025-03-17 11:03:46,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:46,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:46,938 INFO L206 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] [2025-03-17 11:03:46,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 11:03:46,938 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:46,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:46,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1152453705, now seen corresponding path program 8 times [2025-03-17 11:03:46,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:46,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297638394] [2025-03-17 11:03:46,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:03:46,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:46,944 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:46,946 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:46,946 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:03:46,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:47,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:47,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297638394] [2025-03-17 11:03:47,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297638394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:47,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:47,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:47,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761788912] [2025-03-17 11:03:47,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:47,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:47,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:47,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:47,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:47,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:47,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 83 transitions, 471 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:47,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:47,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:47,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:47,179 INFO L124 PetriNetUnfolderBase]: 25/267 cut-off events. [2025-03-17 11:03:47,180 INFO L125 PetriNetUnfolderBase]: For 535/542 co-relation queries the response was YES. [2025-03-17 11:03:47,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 267 events. 25/267 cut-off events. For 535/542 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1284 event pairs, 6 based on Foata normal form. 4/263 useless extension candidates. Maximal degree in co-relation 708. Up to 38 conditions per place. [2025-03-17 11:03:47,181 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 12 selfloop transitions, 8 changer transitions 8/80 dead transitions. [2025-03-17 11:03:47,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 80 transitions, 461 flow [2025-03-17 11:03:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 11:03:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 11:03:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 404 transitions. [2025-03-17 11:03:47,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7890625 [2025-03-17 11:03:47,182 INFO L175 Difference]: Start difference. First operand has 109 places, 83 transitions, 471 flow. Second operand 8 states and 404 transitions. [2025-03-17 11:03:47,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 80 transitions, 461 flow [2025-03-17 11:03:47,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 80 transitions, 403 flow, removed 8 selfloop flow, removed 14 redundant places. [2025-03-17 11:03:47,185 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 300 flow [2025-03-17 11:03:47,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=300, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2025-03-17 11:03:47,186 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 33 predicate places. [2025-03-17 11:03:47,186 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 300 flow [2025-03-17 11:03:47,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:47,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:47,187 INFO L206 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] [2025-03-17 11:03:47,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 11:03:47,187 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:47,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1486094617, now seen corresponding path program 9 times [2025-03-17 11:03:47,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:47,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905765658] [2025-03-17 11:03:47,188 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:03:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:47,194 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 1 equivalence classes. [2025-03-17 11:03:47,197 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 11:03:47,197 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:03:47,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:47,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:47,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905765658] [2025-03-17 11:03:47,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905765658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:47,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:47,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:47,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525516607] [2025-03-17 11:03:47,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:47,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:47,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:47,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:47,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:47,336 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:47,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:47,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:47,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:47,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:47,432 INFO L124 PetriNetUnfolderBase]: 23/229 cut-off events. [2025-03-17 11:03:47,432 INFO L125 PetriNetUnfolderBase]: For 282/287 co-relation queries the response was YES. [2025-03-17 11:03:47,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 229 events. 23/229 cut-off events. For 282/287 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1042 event pairs, 4 based on Foata normal form. 4/227 useless extension candidates. Maximal degree in co-relation 571. Up to 32 conditions per place. [2025-03-17 11:03:47,433 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 8 selfloop transitions, 12 changer transitions 3/75 dead transitions. [2025-03-17 11:03:47,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 75 transitions, 362 flow [2025-03-17 11:03:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 11:03:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 11:03:47,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 400 transitions. [2025-03-17 11:03:47,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.78125 [2025-03-17 11:03:47,435 INFO L175 Difference]: Start difference. First operand has 95 places, 70 transitions, 300 flow. Second operand 8 states and 400 transitions. [2025-03-17 11:03:47,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 75 transitions, 362 flow [2025-03-17 11:03:47,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 75 transitions, 312 flow, removed 4 selfloop flow, removed 11 redundant places. [2025-03-17 11:03:47,437 INFO L231 Difference]: Finished difference. Result has 83 places, 70 transitions, 280 flow [2025-03-17 11:03:47,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=280, PETRI_PLACES=83, PETRI_TRANSITIONS=70} [2025-03-17 11:03:47,437 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2025-03-17 11:03:47,437 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 70 transitions, 280 flow [2025-03-17 11:03:47,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:47,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:03:47,438 INFO L206 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] [2025-03-17 11:03:47,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 11:03:47,438 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:03:47,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:03:47,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1117071049, now seen corresponding path program 10 times [2025-03-17 11:03:47,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:03:47,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246608169] [2025-03-17 11:03:47,439 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:03:47,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:03:47,444 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 37 statements into 2 equivalence classes. [2025-03-17 11:03:47,446 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 34 of 37 statements. [2025-03-17 11:03:47,446 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 11:03:47,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:03:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:03:47,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:03:47,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246608169] [2025-03-17 11:03:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246608169] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:03:47,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:03:47,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:03:47,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658834514] [2025-03-17 11:03:47,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:03:47,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:03:47,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:03:47,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:03:47,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:03:47,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2025-03-17 11:03:47,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 70 transitions, 280 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:47,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:03:47,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2025-03-17 11:03:47,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:03:47,637 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2025-03-17 11:03:47,638 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2025-03-17 11:03:47,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 72 events. 5/72 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 120 event pairs, 1 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 152. Up to 9 conditions per place. [2025-03-17 11:03:47,638 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2025-03-17 11:03:47,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 48 transitions, 193 flow [2025-03-17 11:03:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 11:03:47,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 11:03:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 345 transitions. [2025-03-17 11:03:47,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7700892857142857 [2025-03-17 11:03:47,639 INFO L175 Difference]: Start difference. First operand has 83 places, 70 transitions, 280 flow. Second operand 7 states and 345 transitions. [2025-03-17 11:03:47,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 48 transitions, 193 flow [2025-03-17 11:03:47,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 149 flow, removed 8 selfloop flow, removed 11 redundant places. [2025-03-17 11:03:47,640 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-03-17 11:03:47,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-03-17 11:03:47,641 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places. [2025-03-17 11:03:47,641 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-03-17 11:03:47,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 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) [2025-03-17 11:03:47,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-03-17 11:03:47,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-03-17 11:03:47,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-17 11:03:47,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-03-17 11:03:47,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-03-17 11:03:47,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-03-17 11:03:47,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-03-17 11:03:47,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 11:03:47,645 INFO L422 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2025-03-17 11:03:47,648 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 11:03:47,648 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 11:03:47,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:03:47 BasicIcfg [2025-03-17 11:03:47,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 11:03:47,654 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 11:03:47,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 11:03:47,655 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 11:03:47,655 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:03:43" (3/4) ... [2025-03-17 11:03:47,656 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 11:03:47,659 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-17 11:03:47,661 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 11:03:47,661 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 11:03:47,661 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 11:03:47,712 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 11:03:47,712 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 11:03:47,712 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 11:03:47,713 INFO L158 Benchmark]: Toolchain (without parser) took 5055.84ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 112.6MB in the beginning and 110.9MB in the end (delta: 1.7MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2025-03-17 11:03:47,713 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:03:47,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.39ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 85.0MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:03:47,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.30ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 83.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:03:47,715 INFO L158 Benchmark]: Boogie Preprocessor took 11.57ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 82.5MB in the end (delta: 965.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:03:47,715 INFO L158 Benchmark]: IcfgBuilder took 304.36ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 68.6MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:03:47,716 INFO L158 Benchmark]: TraceAbstraction took 4194.84ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 68.1MB in the beginning and 115.6MB in the end (delta: -47.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:03:47,716 INFO L158 Benchmark]: Witness Printer took 58.01ms. Allocated memory is still 176.2MB. Free memory was 115.6MB in the beginning and 110.9MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:03:47,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.39ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 85.0MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.30ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 83.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.57ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 82.5MB in the end (delta: 965.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 304.36ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 68.6MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4194.84ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 68.1MB in the beginning and 115.6MB in the end (delta: -47.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.01ms. Allocated memory is still 176.2MB. Free memory was 115.6MB in the beginning and 110.9MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 88 locations, 87 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 788 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 647 mSDsluCounter, 1112 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1012 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1681 IncrementalHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 100 mSDtfsCounter, 1681 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=602occurred in iteration=9, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 454 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 441 ConstructedInterpolants, 0 QuantifiedInterpolants, 1072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 11:03:47,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE