./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:51:00,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:51:00,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:51:00,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:51:00,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:51:00,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:51:00,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:51:00,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:51:00,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:51:00,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:51:00,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:51:00,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:51:00,176 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:51:00,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:51:00,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:51:00,177 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:51:00,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:51:00,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:51:00,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:51:00,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:51:00,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:51:00,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:51:00,181 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:51:00,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:51:00,182 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:51:00,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:51:00,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:51:00,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:51:00,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:51:00,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:51:00,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:51:00,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:51:00,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:51:00,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:51:00,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:51:00,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:51:00,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:51:00,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:51:00,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:51:00,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:51:00,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:51:00,191 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2024-10-11 16:51:00,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:51:00,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:51:00,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:51:00,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:51:00,400 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:51:00,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2024-10-11 16:51:01,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:51:01,825 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:51:01,826 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2024-10-11 16:51:01,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6e5ac0425/8ae95b21c4ae44958034eb0ae68e55e9/FLAG61c3cf123 [2024-10-11 16:51:02,175 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6e5ac0425/8ae95b21c4ae44958034eb0ae68e55e9 [2024-10-11 16:51:02,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:51:02,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:51:02,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:51:02,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:51:02,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:51:02,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bc60d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02, skipping insertion in model container [2024-10-11 16:51:02,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:51:02,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:51:02,482 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:51:02,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:51:02,545 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:51:02,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02 WrapperNode [2024-10-11 16:51:02,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:51:02,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:51:02,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:51:02,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:51:02,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,587 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 117 [2024-10-11 16:51:02,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:51:02,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:51:02,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:51:02,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:51:02,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:51:02,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:51:02,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:51:02,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:51:02,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (1/1) ... [2024-10-11 16:51:02,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:51:02,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:51:02,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:51:02,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:51:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-11 16:51:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-11 16:51:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:51:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:51:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:51:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:51:02,695 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:51:02,786 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:51:02,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:51:02,942 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:51:02,942 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:51:03,048 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:51:03,048 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 16:51:03,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:51:03 BoogieIcfgContainer [2024-10-11 16:51:03,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:51:03,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:51:03,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:51:03,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:51:03,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:51:02" (1/3) ... [2024-10-11 16:51:03,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47665ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:51:03, skipping insertion in model container [2024-10-11 16:51:03,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:51:02" (2/3) ... [2024-10-11 16:51:03,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47665ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:51:03, skipping insertion in model container [2024-10-11 16:51:03,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:51:03" (3/3) ... [2024-10-11 16:51:03,056 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2024-10-11 16:51:03,068 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:51:03,068 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-10-11 16:51:03,069 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:51:03,113 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:51:03,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 94 transitions, 192 flow [2024-10-11 16:51:03,175 INFO L124 PetriNetUnfolderBase]: 6/103 cut-off events. [2024-10-11 16:51:03,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:51:03,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 103 events. 6/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2024-10-11 16:51:03,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 94 transitions, 192 flow [2024-10-11 16:51:03,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 94 transitions, 192 flow [2024-10-11 16:51:03,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:51:03,196 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;@567a0cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:51:03,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-11 16:51:03,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:51:03,205 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-11 16:51:03,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:51:03,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:03,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:03,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 16:51:03,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:03,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1066272005, now seen corresponding path program 1 times [2024-10-11 16:51:03,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:03,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543541501] [2024-10-11 16:51:03,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:03,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:03,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:03,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543541501] [2024-10-11 16:51:03,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543541501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:03,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:03,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:51:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782255593] [2024-10-11 16:51:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:03,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:51:03,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:03,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:51:03,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:51:03,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 94 [2024-10-11 16:51:03,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 94 transitions, 192 flow. Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:03,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 94 [2024-10-11 16:51:03,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:03,469 INFO L124 PetriNetUnfolderBase]: 1/77 cut-off events. [2024-10-11 16:51:03,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:51:03,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 1/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 9/77 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2024-10-11 16:51:03,471 INFO L140 encePairwiseOnDemand]: 80/94 looper letters, 5 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2024-10-11 16:51:03,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 73 transitions, 160 flow [2024-10-11 16:51:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:51:03,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:51:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 167 transitions. [2024-10-11 16:51:03,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882978723404256 [2024-10-11 16:51:03,482 INFO L175 Difference]: Start difference. First operand has 92 places, 94 transitions, 192 flow. Second operand 2 states and 167 transitions. [2024-10-11 16:51:03,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 73 transitions, 160 flow [2024-10-11 16:51:03,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:03,486 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 150 flow [2024-10-11 16:51:03,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2024-10-11 16:51:03,490 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2024-10-11 16:51:03,490 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 150 flow [2024-10-11 16:51:03,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:03,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:03,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:51:03,492 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 16:51:03,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1809800990, now seen corresponding path program 1 times [2024-10-11 16:51:03,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:03,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136366849] [2024-10-11 16:51:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:03,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136366849] [2024-10-11 16:51:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136366849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:03,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:03,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:03,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818105560] [2024-10-11 16:51:03,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:03,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:03,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:03,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:03,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 94 [2024-10-11 16:51:03,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:03,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 94 [2024-10-11 16:51:03,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:03,606 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2024-10-11 16:51:03,606 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:51:03,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2024-10-11 16:51:03,607 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 8 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2024-10-11 16:51:03,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 172 flow [2024-10-11 16:51:03,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2024-10-11 16:51:03,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-10-11 16:51:03,611 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 150 flow. Second operand 3 states and 212 transitions. [2024-10-11 16:51:03,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 172 flow [2024-10-11 16:51:03,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:03,614 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 154 flow [2024-10-11 16:51:03,616 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2024-10-11 16:51:03,617 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2024-10-11 16:51:03,617 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 154 flow [2024-10-11 16:51:03,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:03,618 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:03,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:51:03,618 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-11 16:51:03,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:03,620 INFO L85 PathProgramCache]: Analyzing trace with hash -355155489, now seen corresponding path program 1 times [2024-10-11 16:51:03,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:03,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007655340] [2024-10-11 16:51:03,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:51:03,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:51:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:51:03,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:51:03,664 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:51:03,665 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-10-11 16:51:03,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-10-11 16:51:03,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-10-11 16:51:03,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-10-11 16:51:03,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-10-11 16:51:03,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-10-11 16:51:03,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-10-11 16:51:03,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-10-11 16:51:03,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-10-11 16:51:03,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-10-11 16:51:03,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-10-11 16:51:03,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-10-11 16:51:03,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-10-11 16:51:03,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-10-11 16:51:03,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-10-11 16:51:03,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-10-11 16:51:03,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-10-11 16:51:03,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-10-11 16:51:03,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-10-11 16:51:03,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-10-11 16:51:03,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-10-11 16:51:03,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-10-11 16:51:03,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-10-11 16:51:03,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-10-11 16:51:03,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-10-11 16:51:03,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-10-11 16:51:03,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-10-11 16:51:03,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-10-11 16:51:03,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-10-11 16:51:03,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-10-11 16:51:03,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-10-11 16:51:03,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:51:03,673 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 16:51:03,675 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:51:03,675 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 16:51:03,706 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:51:03,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 338 flow [2024-10-11 16:51:03,739 INFO L124 PetriNetUnfolderBase]: 11/184 cut-off events. [2024-10-11 16:51:03,739 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:51:03,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 184 events. 11/184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 493 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 149. Up to 6 conditions per place. [2024-10-11 16:51:03,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 164 transitions, 338 flow [2024-10-11 16:51:03,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 164 transitions, 338 flow [2024-10-11 16:51:03,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:51:03,745 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;@567a0cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:51:03,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-10-11 16:51:03,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:51:03,750 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-11 16:51:03,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:51:03,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:03,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:03,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-11 16:51:03,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:03,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1809223995, now seen corresponding path program 1 times [2024-10-11 16:51:03,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:03,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995131740] [2024-10-11 16:51:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:03,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:03,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995131740] [2024-10-11 16:51:03,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995131740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:03,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:03,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:51:03,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174292675] [2024-10-11 16:51:03,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:03,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:51:03,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:03,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:51:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:51:03,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-10-11 16:51:03,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 164 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:03,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-10-11 16:51:03,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:03,861 INFO L124 PetriNetUnfolderBase]: 25/364 cut-off events. [2024-10-11 16:51:03,861 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-11 16:51:03,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 364 events. 25/364 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1723 event pairs, 14 based on Foata normal form. 63/367 useless extension candidates. Maximal degree in co-relation 325. Up to 50 conditions per place. [2024-10-11 16:51:03,866 INFO L140 encePairwiseOnDemand]: 138/164 looper letters, 10 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2024-10-11 16:51:03,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 284 flow [2024-10-11 16:51:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:51:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:51:03,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 288 transitions. [2024-10-11 16:51:03,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8780487804878049 [2024-10-11 16:51:03,868 INFO L175 Difference]: Start difference. First operand has 160 places, 164 transitions, 338 flow. Second operand 2 states and 288 transitions. [2024-10-11 16:51:03,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 284 flow [2024-10-11 16:51:03,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 127 transitions, 284 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:03,871 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 264 flow [2024-10-11 16:51:03,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=264, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2024-10-11 16:51:03,872 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, -29 predicate places. [2024-10-11 16:51:03,872 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 264 flow [2024-10-11 16:51:03,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:03,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:03,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:51:03,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-11 16:51:03,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:03,873 INFO L85 PathProgramCache]: Analyzing trace with hash -797474178, now seen corresponding path program 1 times [2024-10-11 16:51:03,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:03,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244340939] [2024-10-11 16:51:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:03,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:03,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:03,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244340939] [2024-10-11 16:51:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244340939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:03,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:03,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508671295] [2024-10-11 16:51:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:03,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:03,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 164 [2024-10-11 16:51:03,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:03,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:03,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 164 [2024-10-11 16:51:03,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:04,116 INFO L124 PetriNetUnfolderBase]: 168/1309 cut-off events. [2024-10-11 16:51:04,116 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-11 16:51:04,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1727 conditions, 1309 events. 168/1309 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10204 event pairs, 50 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 1722. Up to 243 conditions per place. [2024-10-11 16:51:04,123 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 35 selfloop transitions, 12 changer transitions 0/148 dead transitions. [2024-10-11 16:51:04,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 148 transitions, 405 flow [2024-10-11 16:51:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2024-10-11 16:51:04,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.774390243902439 [2024-10-11 16:51:04,125 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 264 flow. Second operand 3 states and 381 transitions. [2024-10-11 16:51:04,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 148 transitions, 405 flow [2024-10-11 16:51:04,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 148 transitions, 405 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:04,130 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 368 flow [2024-10-11 16:51:04,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2024-10-11 16:51:04,132 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, -25 predicate places. [2024-10-11 16:51:04,133 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 368 flow [2024-10-11 16:51:04,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:04,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:04,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:51:04,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-11 16:51:04,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:04,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1281553974, now seen corresponding path program 1 times [2024-10-11 16:51:04,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:04,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182684835] [2024-10-11 16:51:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:04,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:04,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:04,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182684835] [2024-10-11 16:51:04,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182684835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:04,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:04,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:04,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713083649] [2024-10-11 16:51:04,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:04,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:04,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:04,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 164 [2024-10-11 16:51:04,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:04,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:04,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 164 [2024-10-11 16:51:04,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:04,333 INFO L124 PetriNetUnfolderBase]: 239/1688 cut-off events. [2024-10-11 16:51:04,333 INFO L125 PetriNetUnfolderBase]: For 373/394 co-relation queries the response was YES. [2024-10-11 16:51:04,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1688 events. 239/1688 cut-off events. For 373/394 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14056 event pairs, 111 based on Foata normal form. 3/1451 useless extension candidates. Maximal degree in co-relation 2586. Up to 431 conditions per place. [2024-10-11 16:51:04,343 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 35 selfloop transitions, 10 changer transitions 0/152 dead transitions. [2024-10-11 16:51:04,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 152 transitions, 509 flow [2024-10-11 16:51:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:04,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-10-11 16:51:04,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2024-10-11 16:51:04,345 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 368 flow. Second operand 3 states and 372 transitions. [2024-10-11 16:51:04,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 152 transitions, 509 flow [2024-10-11 16:51:04,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 152 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:51:04,350 INFO L231 Difference]: Finished difference. Result has 137 places, 147 transitions, 430 flow [2024-10-11 16:51:04,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=137, PETRI_TRANSITIONS=147} [2024-10-11 16:51:04,352 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, -23 predicate places. [2024-10-11 16:51:04,352 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 147 transitions, 430 flow [2024-10-11 16:51:04,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:04,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:04,353 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:04,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:51:04,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-11 16:51:04,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash 670288835, now seen corresponding path program 1 times [2024-10-11 16:51:04,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:04,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307866358] [2024-10-11 16:51:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:04,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:51:04,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:51:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:51:04,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:51:04,381 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-10-11 16:51:04,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-10-11 16:51:04,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-10-11 16:51:04,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-10-11 16:51:04,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-10-11 16:51:04,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-10-11 16:51:04,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-10-11 16:51:04,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-10-11 16:51:04,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-10-11 16:51:04,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-10-11 16:51:04,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-10-11 16:51:04,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-10-11 16:51:04,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-10-11 16:51:04,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-10-11 16:51:04,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-10-11 16:51:04,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-10-11 16:51:04,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-10-11 16:51:04,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-10-11 16:51:04,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:51:04,389 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 16:51:04,389 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:51:04,389 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 16:51:04,423 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:51:04,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 234 transitions, 486 flow [2024-10-11 16:51:04,449 INFO L124 PetriNetUnfolderBase]: 16/265 cut-off events. [2024-10-11 16:51:04,449 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-11 16:51:04,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 265 events. 16/265 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 913 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 218. Up to 8 conditions per place. [2024-10-11 16:51:04,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 234 transitions, 486 flow [2024-10-11 16:51:04,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 234 transitions, 486 flow [2024-10-11 16:51:04,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:51:04,457 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;@567a0cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:51:04,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-11 16:51:04,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:51:04,459 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-10-11 16:51:04,459 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:51:04,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:04,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:04,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:04,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash 882836310, now seen corresponding path program 1 times [2024-10-11 16:51:04,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:04,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242111837] [2024-10-11 16:51:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:04,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242111837] [2024-10-11 16:51:04,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242111837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:04,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:51:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313413246] [2024-10-11 16:51:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:04,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:51:04,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:04,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:51:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:51:04,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 234 [2024-10-11 16:51:04,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 234 transitions, 486 flow. Second operand has 2 states, 2 states have (on average 179.0) internal successors, (358), 2 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:04,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:04,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 234 [2024-10-11 16:51:04,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:04,649 INFO L124 PetriNetUnfolderBase]: 250/1734 cut-off events. [2024-10-11 16:51:04,649 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-10-11 16:51:04,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 1734 events. 250/1734 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 14102 event pairs, 161 based on Foata normal form. 417/1853 useless extension candidates. Maximal degree in co-relation 1662. Up to 378 conditions per place. [2024-10-11 16:51:04,668 INFO L140 encePairwiseOnDemand]: 196/234 looper letters, 15 selfloop transitions, 0 changer transitions 0/181 dead transitions. [2024-10-11 16:51:04,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 181 transitions, 410 flow [2024-10-11 16:51:04,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:51:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:51:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 409 transitions. [2024-10-11 16:51:04,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8739316239316239 [2024-10-11 16:51:04,670 INFO L175 Difference]: Start difference. First operand has 228 places, 234 transitions, 486 flow. Second operand 2 states and 409 transitions. [2024-10-11 16:51:04,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 181 transitions, 410 flow [2024-10-11 16:51:04,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 181 transitions, 408 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:04,673 INFO L231 Difference]: Finished difference. Result has 186 places, 181 transitions, 378 flow [2024-10-11 16:51:04,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=378, PETRI_PLACES=186, PETRI_TRANSITIONS=181} [2024-10-11 16:51:04,675 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -42 predicate places. [2024-10-11 16:51:04,675 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 181 transitions, 378 flow [2024-10-11 16:51:04,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 179.0) internal successors, (358), 2 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:04,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:04,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:04,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:51:04,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:04,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1997801703, now seen corresponding path program 1 times [2024-10-11 16:51:04,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:04,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103237522] [2024-10-11 16:51:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:04,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:04,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103237522] [2024-10-11 16:51:04,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103237522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:04,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:04,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:04,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386407369] [2024-10-11 16:51:04,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:04,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:04,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:04,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:04,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:04,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 234 [2024-10-11 16:51:04,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 181 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:04,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:04,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 234 [2024-10-11 16:51:04,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:06,620 INFO L124 PetriNetUnfolderBase]: 5416/22445 cut-off events. [2024-10-11 16:51:06,620 INFO L125 PetriNetUnfolderBase]: For 634/634 co-relation queries the response was YES. [2024-10-11 16:51:06,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31712 conditions, 22445 events. 5416/22445 cut-off events. For 634/634 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 291114 event pairs, 1708 based on Foata normal form. 0/18967 useless extension candidates. Maximal degree in co-relation 31706. Up to 5479 conditions per place. [2024-10-11 16:51:06,837 INFO L140 encePairwiseOnDemand]: 210/234 looper letters, 53 selfloop transitions, 18 changer transitions 0/213 dead transitions. [2024-10-11 16:51:06,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 213 transitions, 594 flow [2024-10-11 16:51:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2024-10-11 16:51:06,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7678062678062678 [2024-10-11 16:51:06,840 INFO L175 Difference]: Start difference. First operand has 186 places, 181 transitions, 378 flow. Second operand 3 states and 539 transitions. [2024-10-11 16:51:06,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 213 transitions, 594 flow [2024-10-11 16:51:06,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 213 transitions, 594 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:06,843 INFO L231 Difference]: Finished difference. Result has 190 places, 199 transitions, 534 flow [2024-10-11 16:51:06,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=190, PETRI_TRANSITIONS=199} [2024-10-11 16:51:06,844 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -38 predicate places. [2024-10-11 16:51:06,844 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 199 transitions, 534 flow [2024-10-11 16:51:06,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:06,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:06,845 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:06,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:51:06,845 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:06,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:06,846 INFO L85 PathProgramCache]: Analyzing trace with hash 731882617, now seen corresponding path program 1 times [2024-10-11 16:51:06,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:06,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475148171] [2024-10-11 16:51:06,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:06,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:06,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475148171] [2024-10-11 16:51:06,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475148171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:06,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:06,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:06,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202930056] [2024-10-11 16:51:06,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:06,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:06,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:06,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:06,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:06,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 234 [2024-10-11 16:51:06,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 199 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:06,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:06,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 234 [2024-10-11 16:51:06,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:09,286 INFO L124 PetriNetUnfolderBase]: 7441/32399 cut-off events. [2024-10-11 16:51:09,286 INFO L125 PetriNetUnfolderBase]: For 9209/10237 co-relation queries the response was YES. [2024-10-11 16:51:09,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52954 conditions, 32399 events. 7441/32399 cut-off events. For 9209/10237 co-relation queries the response was YES. Maximal size of possible extension queue 904. Compared 449585 event pairs, 3521 based on Foata normal form. 56/27473 useless extension candidates. Maximal degree in co-relation 52946. Up to 9738 conditions per place. [2024-10-11 16:51:09,463 INFO L140 encePairwiseOnDemand]: 222/234 looper letters, 53 selfloop transitions, 20 changer transitions 0/227 dead transitions. [2024-10-11 16:51:09,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 227 transitions, 794 flow [2024-10-11 16:51:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:09,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 534 transitions. [2024-10-11 16:51:09,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7606837606837606 [2024-10-11 16:51:09,466 INFO L175 Difference]: Start difference. First operand has 190 places, 199 transitions, 534 flow. Second operand 3 states and 534 transitions. [2024-10-11 16:51:09,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 227 transitions, 794 flow [2024-10-11 16:51:09,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 227 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:51:09,482 INFO L231 Difference]: Finished difference. Result has 192 places, 217 transitions, 684 flow [2024-10-11 16:51:09,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=192, PETRI_TRANSITIONS=217} [2024-10-11 16:51:09,482 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -36 predicate places. [2024-10-11 16:51:09,482 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 217 transitions, 684 flow [2024-10-11 16:51:09,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:09,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:09,483 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:09,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:51:09,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:09,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:09,483 INFO L85 PathProgramCache]: Analyzing trace with hash -753591162, now seen corresponding path program 1 times [2024-10-11 16:51:09,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:09,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133115512] [2024-10-11 16:51:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:09,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 16:51:09,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:09,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133115512] [2024-10-11 16:51:09,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133115512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:09,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:09,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:09,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807860037] [2024-10-11 16:51:09,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:09,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:09,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:09,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:09,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:09,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 234 [2024-10-11 16:51:09,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 217 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:09,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:09,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 234 [2024-10-11 16:51:09,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:12,178 INFO L124 PetriNetUnfolderBase]: 9199/37611 cut-off events. [2024-10-11 16:51:12,178 INFO L125 PetriNetUnfolderBase]: For 15341/16846 co-relation queries the response was YES. [2024-10-11 16:51:12,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65419 conditions, 37611 events. 9199/37611 cut-off events. For 15341/16846 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 527959 event pairs, 3928 based on Foata normal form. 64/31634 useless extension candidates. Maximal degree in co-relation 65410. Up to 11807 conditions per place. [2024-10-11 16:51:12,525 INFO L140 encePairwiseOnDemand]: 222/234 looper letters, 66 selfloop transitions, 28 changer transitions 0/250 dead transitions. [2024-10-11 16:51:12,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 250 transitions, 1035 flow [2024-10-11 16:51:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 533 transitions. [2024-10-11 16:51:12,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-10-11 16:51:12,527 INFO L175 Difference]: Start difference. First operand has 192 places, 217 transitions, 684 flow. Second operand 3 states and 533 transitions. [2024-10-11 16:51:12,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 250 transitions, 1035 flow [2024-10-11 16:51:12,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 250 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:51:12,558 INFO L231 Difference]: Finished difference. Result has 194 places, 241 transitions, 930 flow [2024-10-11 16:51:12,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=930, PETRI_PLACES=194, PETRI_TRANSITIONS=241} [2024-10-11 16:51:12,559 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -34 predicate places. [2024-10-11 16:51:12,559 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 241 transitions, 930 flow [2024-10-11 16:51:12,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:12,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:12,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:12,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:51:12,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:12,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:12,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1451364803, now seen corresponding path program 1 times [2024-10-11 16:51:12,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:12,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992570521] [2024-10-11 16:51:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:12,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:12,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:12,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992570521] [2024-10-11 16:51:12,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992570521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:12,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:12,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:12,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730573417] [2024-10-11 16:51:12,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:12,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:12,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:12,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:12,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:12,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 234 [2024-10-11 16:51:12,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 241 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:12,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:12,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 234 [2024-10-11 16:51:12,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:16,162 INFO L124 PetriNetUnfolderBase]: 10354/45027 cut-off events. [2024-10-11 16:51:16,162 INFO L125 PetriNetUnfolderBase]: For 9539/10462 co-relation queries the response was YES. [2024-10-11 16:51:16,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73371 conditions, 45027 events. 10354/45027 cut-off events. For 9539/10462 co-relation queries the response was YES. Maximal size of possible extension queue 1433. Compared 665790 event pairs, 3887 based on Foata normal form. 60/38501 useless extension candidates. Maximal degree in co-relation 73361. Up to 9599 conditions per place. [2024-10-11 16:51:16,468 INFO L140 encePairwiseOnDemand]: 219/234 looper letters, 44 selfloop transitions, 12 changer transitions 0/267 dead transitions. [2024-10-11 16:51:16,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 267 transitions, 1104 flow [2024-10-11 16:51:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:16,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:16,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2024-10-11 16:51:16,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7806267806267806 [2024-10-11 16:51:16,470 INFO L175 Difference]: Start difference. First operand has 194 places, 241 transitions, 930 flow. Second operand 3 states and 548 transitions. [2024-10-11 16:51:16,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 267 transitions, 1104 flow [2024-10-11 16:51:16,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 267 transitions, 1048 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:51:16,495 INFO L231 Difference]: Finished difference. Result has 196 places, 253 transitions, 976 flow [2024-10-11 16:51:16,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=976, PETRI_PLACES=196, PETRI_TRANSITIONS=253} [2024-10-11 16:51:16,496 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -32 predicate places. [2024-10-11 16:51:16,496 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 253 transitions, 976 flow [2024-10-11 16:51:16,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:16,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:16,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:16,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:51:16,497 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:16,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:16,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2041622918, now seen corresponding path program 1 times [2024-10-11 16:51:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104126092] [2024-10-11 16:51:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:16,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:16,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:16,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104126092] [2024-10-11 16:51:16,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104126092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:16,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:16,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:16,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856453523] [2024-10-11 16:51:16,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:16,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:16,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:16,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:16,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:16,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 234 [2024-10-11 16:51:16,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 253 transitions, 976 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:16,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:16,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 234 [2024-10-11 16:51:16,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:18,884 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([934] L708-->L708-1: Formula: (and (not (= (ite (= (mod v_~MTX~0_129 256) 1) 1 0) 0)) (= v_~MTX~0_128 0)) InVars {~MTX~0=v_~MTX~0_129} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_7|, #race~MTX~0=|v_#race~MTX~0_159|, ~MTX~0=v_~MTX~0_128, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[~MTX~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, #race~MTX~0, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][97], [75#L703-5true, 248#true, 83#L717-6true, 229#true, Black: 233#true, 253#true, Black: 240#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 225#true, 227#true, 231#true, Black: 245#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), 176#L709true, Black: 250#(= |#race~COND~0| 0), 23#L708-1true]) [2024-10-11 16:51:18,884 INFO L294 olderBase$Statistics]: this new event has 87 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([937] L705-2-->L705-3: Formula: (= |v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5| |v_#race~COND~0_1|) InVars {thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|} OutVars{thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|, #race~COND~0=|v_#race~COND~0_1|} AuxVars[] AssignedVars[#race~COND~0][114], [75#L703-5true, 248#true, 83#L717-6true, 229#true, 157#L705-3true, Black: 233#true, 253#true, Black: 240#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 225#true, 227#true, 231#true, Black: 245#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), 176#L709true, Black: 250#(= |#race~COND~0| 0)]) [2024-10-11 16:51:18,885 INFO L294 olderBase$Statistics]: this new event has 89 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L297 olderBase$Statistics]: existing Event has 89 ancestors and is cut-off event [2024-10-11 16:51:18,885 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-11 16:51:18,968 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([934] L708-->L708-1: Formula: (and (not (= (ite (= (mod v_~MTX~0_129 256) 1) 1 0) 0)) (= v_~MTX~0_128 0)) InVars {~MTX~0=v_~MTX~0_129} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_7|, #race~MTX~0=|v_#race~MTX~0_159|, ~MTX~0=v_~MTX~0_128, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[~MTX~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, #race~MTX~0, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][97], [75#L703-5true, 248#true, 83#L717-6true, 229#true, 166#L712true, Black: 233#true, 253#true, Black: 240#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 225#true, 227#true, 231#true, Black: 245#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), Black: 250#(= |#race~COND~0| 0), 23#L708-1true]) [2024-10-11 16:51:18,968 INFO L294 olderBase$Statistics]: this new event has 88 ancestors and is cut-off event [2024-10-11 16:51:18,968 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-10-11 16:51:18,968 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-10-11 16:51:18,968 INFO L297 olderBase$Statistics]: existing Event has 88 ancestors and is cut-off event [2024-10-11 16:51:18,968 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([937] L705-2-->L705-3: Formula: (= |v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5| |v_#race~COND~0_1|) InVars {thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|} OutVars{thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|, #race~COND~0=|v_#race~COND~0_1|} AuxVars[] AssignedVars[#race~COND~0][114], [75#L703-5true, 248#true, 83#L717-6true, 229#true, 157#L705-3true, 166#L712true, Black: 233#true, 253#true, Black: 240#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 225#true, 227#true, 231#true, Black: 245#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), Black: 250#(= |#race~COND~0| 0)]) [2024-10-11 16:51:18,969 INFO L294 olderBase$Statistics]: this new event has 90 ancestors and is cut-off event [2024-10-11 16:51:18,969 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-11 16:51:18,969 INFO L297 olderBase$Statistics]: existing Event has 90 ancestors and is cut-off event [2024-10-11 16:51:18,969 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-11 16:51:20,879 INFO L124 PetriNetUnfolderBase]: 12286/52882 cut-off events. [2024-10-11 16:51:20,879 INFO L125 PetriNetUnfolderBase]: For 18255/20726 co-relation queries the response was YES. [2024-10-11 16:51:21,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94731 conditions, 52882 events. 12286/52882 cut-off events. For 18255/20726 co-relation queries the response was YES. Maximal size of possible extension queue 1654. Compared 797815 event pairs, 5643 based on Foata normal form. 115/45569 useless extension candidates. Maximal degree in co-relation 94720. Up to 15115 conditions per place. [2024-10-11 16:51:21,388 INFO L140 encePairwiseOnDemand]: 224/234 looper letters, 47 selfloop transitions, 16 changer transitions 0/277 dead transitions. [2024-10-11 16:51:21,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 277 transitions, 1196 flow [2024-10-11 16:51:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:51:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:51:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2024-10-11 16:51:21,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7663817663817664 [2024-10-11 16:51:21,390 INFO L175 Difference]: Start difference. First operand has 196 places, 253 transitions, 976 flow. Second operand 3 states and 538 transitions. [2024-10-11 16:51:21,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 277 transitions, 1196 flow [2024-10-11 16:51:21,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 277 transitions, 1160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:51:21,484 INFO L231 Difference]: Finished difference. Result has 198 places, 267 transitions, 1098 flow [2024-10-11 16:51:21,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=198, PETRI_TRANSITIONS=267} [2024-10-11 16:51:21,485 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -30 predicate places. [2024-10-11 16:51:21,485 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 267 transitions, 1098 flow [2024-10-11 16:51:21,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:21,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:21,486 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:21,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:51:21,486 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-11 16:51:21,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1397179678, now seen corresponding path program 1 times [2024-10-11 16:51:21,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:21,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457986209] [2024-10-11 16:51:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:21,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:51:21,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:51:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:51:21,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:51:21,507 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2024-10-11 16:51:21,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-10-11 16:51:21,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-10-11 16:51:21,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-10-11 16:51:21,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-10-11 16:51:21,511 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-10-11 16:51:21,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-10-11 16:51:21,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-10-11 16:51:21,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-10-11 16:51:21,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:51:21,512 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:21,512 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:51:21,513 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-11 16:51:21,546 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:51:21,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 296 places, 304 transitions, 636 flow [2024-10-11 16:51:21,577 INFO L124 PetriNetUnfolderBase]: 21/346 cut-off events. [2024-10-11 16:51:21,578 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:51:21,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 346 events. 21/346 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1378 event pairs, 0 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 287. Up to 10 conditions per place. [2024-10-11 16:51:21,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 296 places, 304 transitions, 636 flow [2024-10-11 16:51:21,584 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 304 transitions, 636 flow [2024-10-11 16:51:21,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:51:21,585 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;@567a0cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:51:21,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2024-10-11 16:51:21,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:51:21,586 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-10-11 16:51:21,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:51:21,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:21,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:21,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-11 16:51:21,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:21,587 INFO L85 PathProgramCache]: Analyzing trace with hash 449669270, now seen corresponding path program 1 times [2024-10-11 16:51:21,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:21,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162626641] [2024-10-11 16:51:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:21,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:21,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:21,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162626641] [2024-10-11 16:51:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162626641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:21,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:21,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:51:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460949909] [2024-10-11 16:51:21,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:21,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:51:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:51:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:51:21,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 304 [2024-10-11 16:51:21,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 304 transitions, 636 flow. Second operand has 2 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:21,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:21,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 304 [2024-10-11 16:51:21,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:51:22,322 INFO L124 PetriNetUnfolderBase]: 1933/8420 cut-off events. [2024-10-11 16:51:22,323 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2024-10-11 16:51:22,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11625 conditions, 8420 events. 1933/8420 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 92214 event pairs, 1329 based on Foata normal form. 2648/9700 useless extension candidates. Maximal degree in co-relation 8699. Up to 2591 conditions per place. [2024-10-11 16:51:22,384 INFO L140 encePairwiseOnDemand]: 254/304 looper letters, 20 selfloop transitions, 0 changer transitions 0/235 dead transitions. [2024-10-11 16:51:22,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 235 transitions, 538 flow [2024-10-11 16:51:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:51:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:51:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2024-10-11 16:51:22,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8717105263157895 [2024-10-11 16:51:22,386 INFO L175 Difference]: Start difference. First operand has 296 places, 304 transitions, 636 flow. Second operand 2 states and 530 transitions. [2024-10-11 16:51:22,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 235 transitions, 538 flow [2024-10-11 16:51:22,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 235 transitions, 532 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-11 16:51:22,389 INFO L231 Difference]: Finished difference. Result has 241 places, 235 transitions, 492 flow [2024-10-11 16:51:22,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=492, PETRI_PLACES=241, PETRI_TRANSITIONS=235} [2024-10-11 16:51:22,389 INFO L277 CegarLoopForPetriNet]: 296 programPoint places, -55 predicate places. [2024-10-11 16:51:22,389 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 235 transitions, 492 flow [2024-10-11 16:51:22,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:22,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:51:22,390 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:51:22,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 16:51:22,390 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-11 16:51:22,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:51:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1659487495, now seen corresponding path program 1 times [2024-10-11 16:51:22,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:51:22,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290868204] [2024-10-11 16:51:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:51:22,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:51:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:51:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:51:22,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:51:22,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290868204] [2024-10-11 16:51:22,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290868204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:51:22,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:51:22,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:51:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445630377] [2024-10-11 16:51:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:51:22,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:51:22,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:51:22,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:51:22,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:51:22,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 304 [2024-10-11 16:51:22,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 235 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:51:22,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:51:22,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 304 [2024-10-11 16:51:22,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand