./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:54:05,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:54:06,076 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:54:06,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:54:06,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:54:06,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:54:06,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:54:06,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:54:06,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:54:06,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:54:06,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:54:06,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:54:06,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:54:06,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:54:06,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:54:06,123 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:54:06,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:54:06,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:54:06,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:54:06,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:54:06,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:54:06,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:54:06,128 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:54:06,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:54:06,129 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:54:06,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:54:06,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:54:06,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:54:06,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:54:06,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:54:06,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:54:06,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:06,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:54:06,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:54:06,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:54:06,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:54:06,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:54:06,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:54:06,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:54:06,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:54:06,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:54:06,135 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 [2024-11-19 05:54:06,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:54:06,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:54:06,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:54:06,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:54:06,429 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:54:06,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2024-11-19 05:54:07,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:54:08,159 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:54:08,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2024-11-19 05:54:08,185 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfff169a4/1631a76acf9a4564aaa07fc66b2f5979/FLAGf307b705f [2024-11-19 05:54:08,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfff169a4/1631a76acf9a4564aaa07fc66b2f5979 [2024-11-19 05:54:08,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:54:08,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:54:08,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:08,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:54:08,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:54:08,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8430c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08, skipping insertion in model container [2024-11-19 05:54:08,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:54:08,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:08,676 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:54:08,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:08,774 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:54:08,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08 WrapperNode [2024-11-19 05:54:08,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:08,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:08,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:54:08,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:54:08,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,828 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 210 [2024-11-19 05:54:08,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:08,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:54:08,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:54:08,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:54:08,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:54:08,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:54:08,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:54:08,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:54:08,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (1/1) ... [2024-11-19 05:54:08,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:08,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:08,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:54:08,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:54:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:54:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:54:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:54:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:54:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:54:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:54:08,971 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:54:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:54:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:54:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:54:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:54:08,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:54:08,973 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:54:09,162 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:54:09,166 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:54:09,560 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:54:09,560 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:54:09,632 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:54:09,633 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-19 05:54:09,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:09 BoogieIcfgContainer [2024-11-19 05:54:09,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:54:09,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:54:09,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:54:09,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:54:09,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:54:08" (1/3) ... [2024-11-19 05:54:09,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbfd3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:09, skipping insertion in model container [2024-11-19 05:54:09,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:08" (2/3) ... [2024-11-19 05:54:09,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbfd3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:09, skipping insertion in model container [2024-11-19 05:54:09,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:09" (3/3) ... [2024-11-19 05:54:09,648 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2024-11-19 05:54:09,668 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:54:09,669 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-19 05:54:09,670 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:54:09,758 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:54:09,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 210 transitions, 427 flow [2024-11-19 05:54:09,938 INFO L124 PetriNetUnfolderBase]: 36/309 cut-off events. [2024-11-19 05:54:09,939 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:54:09,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 309 events. 36/309 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1292 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 179. Up to 6 conditions per place. [2024-11-19 05:54:09,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 210 transitions, 427 flow [2024-11-19 05:54:09,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 210 transitions, 427 flow [2024-11-19 05:54:09,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:09,980 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;@34a2b67b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:09,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 05:54:10,005 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:10,006 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2024-11-19 05:54:10,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:10,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:10,007 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] [2024-11-19 05:54:10,008 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1643993819, now seen corresponding path program 1 times [2024-11-19 05:54:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:10,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679905820] [2024-11-19 05:54:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:10,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:10,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679905820] [2024-11-19 05:54:10,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679905820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:10,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:10,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671787320] [2024-11-19 05:54:10,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:10,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:54:10,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:54:10,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:54:10,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 210 [2024-11-19 05:54:10,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 210 transitions, 427 flow. Second operand has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:10,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:10,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 210 [2024-11-19 05:54:10,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:10,526 INFO L124 PetriNetUnfolderBase]: 82/853 cut-off events. [2024-11-19 05:54:10,526 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:54:10,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 853 events. 82/853 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5123 event pairs, 72 based on Foata normal form. 153/900 useless extension candidates. Maximal degree in co-relation 898. Up to 172 conditions per place. [2024-11-19 05:54:10,538 INFO L140 encePairwiseOnDemand]: 188/210 looper letters, 19 selfloop transitions, 0 changer transitions 0/184 dead transitions. [2024-11-19 05:54:10,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 184 transitions, 413 flow [2024-11-19 05:54:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:54:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:54:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 375 transitions. [2024-11-19 05:54:10,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2024-11-19 05:54:10,557 INFO L175 Difference]: Start difference. First operand has 189 places, 210 transitions, 427 flow. Second operand 2 states and 375 transitions. [2024-11-19 05:54:10,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 184 transitions, 413 flow [2024-11-19 05:54:10,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 184 transitions, 413 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:10,567 INFO L231 Difference]: Finished difference. Result has 186 places, 184 transitions, 375 flow [2024-11-19 05:54:10,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=375, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2024-11-19 05:54:10,575 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -3 predicate places. [2024-11-19 05:54:10,576 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 375 flow [2024-11-19 05:54:10,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:10,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:10,577 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] [2024-11-19 05:54:10,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:54:10,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:10,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1641143443, now seen corresponding path program 1 times [2024-11-19 05:54:10,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:10,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511632296] [2024-11-19 05:54:10,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:10,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:10,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511632296] [2024-11-19 05:54:10,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511632296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:10,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:10,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:10,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427936932] [2024-11-19 05:54:10,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:10,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:10,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:10,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 210 [2024-11-19 05:54:10,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:10,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:10,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 210 [2024-11-19 05:54:10,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:11,074 INFO L124 PetriNetUnfolderBase]: 110/1056 cut-off events. [2024-11-19 05:54:11,074 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:54:11,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1056 events. 110/1056 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6685 event pairs, 88 based on Foata normal form. 1/941 useless extension candidates. Maximal degree in co-relation 1301. Up to 232 conditions per place. [2024-11-19 05:54:11,084 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 32 selfloop transitions, 2 changer transitions 0/193 dead transitions. [2024-11-19 05:54:11,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 193 transitions, 461 flow [2024-11-19 05:54:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-19 05:54:11,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2024-11-19 05:54:11,094 INFO L175 Difference]: Start difference. First operand has 186 places, 184 transitions, 375 flow. Second operand 3 states and 518 transitions. [2024-11-19 05:54:11,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 193 transitions, 461 flow [2024-11-19 05:54:11,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:11,100 INFO L231 Difference]: Finished difference. Result has 189 places, 184 transitions, 383 flow [2024-11-19 05:54:11,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=189, PETRI_TRANSITIONS=184} [2024-11-19 05:54:11,102 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 0 predicate places. [2024-11-19 05:54:11,102 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 184 transitions, 383 flow [2024-11-19 05:54:11,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:11,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:11,103 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] [2024-11-19 05:54:11,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:54:11,104 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:11,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 224006694, now seen corresponding path program 1 times [2024-11-19 05:54:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878153531] [2024-11-19 05:54:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:11,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:11,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878153531] [2024-11-19 05:54:11,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878153531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:11,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:11,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:11,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362929842] [2024-11-19 05:54:11,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:11,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:11,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:11,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:11,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:11,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 210 [2024-11-19 05:54:11,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 184 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:11,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:11,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 210 [2024-11-19 05:54:11,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:12,045 INFO L124 PetriNetUnfolderBase]: 202/1301 cut-off events. [2024-11-19 05:54:12,046 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-19 05:54:12,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1301 events. 202/1301 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9029 event pairs, 136 based on Foata normal form. 0/1180 useless extension candidates. Maximal degree in co-relation 1771. Up to 335 conditions per place. [2024-11-19 05:54:12,056 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 67 selfloop transitions, 5 changer transitions 0/219 dead transitions. [2024-11-19 05:54:12,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 219 transitions, 597 flow [2024-11-19 05:54:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 967 transitions. [2024-11-19 05:54:12,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674603174603175 [2024-11-19 05:54:12,060 INFO L175 Difference]: Start difference. First operand has 189 places, 184 transitions, 383 flow. Second operand 6 states and 967 transitions. [2024-11-19 05:54:12,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 219 transitions, 597 flow [2024-11-19 05:54:12,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 219 transitions, 593 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:12,065 INFO L231 Difference]: Finished difference. Result has 191 places, 183 transitions, 387 flow [2024-11-19 05:54:12,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=191, PETRI_TRANSITIONS=183} [2024-11-19 05:54:12,066 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 2 predicate places. [2024-11-19 05:54:12,066 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 183 transitions, 387 flow [2024-11-19 05:54:12,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:12,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:12,068 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:12,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:54:12,068 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:12,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash -336056165, now seen corresponding path program 1 times [2024-11-19 05:54:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:12,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642933713] [2024-11-19 05:54:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:12,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642933713] [2024-11-19 05:54:12,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642933713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:12,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:12,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:12,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906998016] [2024-11-19 05:54:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:12,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:12,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:12,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 210 [2024-11-19 05:54:12,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 183 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:12,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:12,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 210 [2024-11-19 05:54:12,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:12,488 INFO L124 PetriNetUnfolderBase]: 442/2623 cut-off events. [2024-11-19 05:54:12,489 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 05:54:12,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 2623 events. 442/2623 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21163 event pairs, 177 based on Foata normal form. 0/2379 useless extension candidates. Maximal degree in co-relation 3610. Up to 608 conditions per place. [2024-11-19 05:54:12,502 INFO L140 encePairwiseOnDemand]: 185/210 looper letters, 62 selfloop transitions, 18 changer transitions 0/219 dead transitions. [2024-11-19 05:54:12,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 219 transitions, 622 flow [2024-11-19 05:54:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2024-11-19 05:54:12,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8142857142857143 [2024-11-19 05:54:12,504 INFO L175 Difference]: Start difference. First operand has 191 places, 183 transitions, 387 flow. Second operand 3 states and 513 transitions. [2024-11-19 05:54:12,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 219 transitions, 622 flow [2024-11-19 05:54:12,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 219 transitions, 612 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:12,509 INFO L231 Difference]: Finished difference. Result has 190 places, 201 transitions, 535 flow [2024-11-19 05:54:12,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=190, PETRI_TRANSITIONS=201} [2024-11-19 05:54:12,510 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 1 predicate places. [2024-11-19 05:54:12,510 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 201 transitions, 535 flow [2024-11-19 05:54:12,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:12,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:12,511 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:12,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:54:12,512 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:12,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1779233426, now seen corresponding path program 1 times [2024-11-19 05:54:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:12,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825933952] [2024-11-19 05:54:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:12,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:12,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:12,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:12,582 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:12,583 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-19 05:54:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-19 05:54:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-19 05:54:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-19 05:54:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-19 05:54:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-19 05:54:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-19 05:54:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-19 05:54:12,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-19 05:54:12,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-19 05:54:12,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-19 05:54:12,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-19 05:54:12,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-19 05:54:12,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-19 05:54:12,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-19 05:54:12,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-19 05:54:12,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-19 05:54:12,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-19 05:54:12,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-19 05:54:12,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-19 05:54:12,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:54:12,589 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 05:54:12,592 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:12,592 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:54:12,627 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:54:12,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 289 transitions, 594 flow [2024-11-19 05:54:12,712 INFO L124 PetriNetUnfolderBase]: 62/515 cut-off events. [2024-11-19 05:54:12,712 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:54:12,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 515 events. 62/515 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2378 event pairs, 0 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 311. Up to 9 conditions per place. [2024-11-19 05:54:12,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 258 places, 289 transitions, 594 flow [2024-11-19 05:54:12,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 258 places, 289 transitions, 594 flow [2024-11-19 05:54:12,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:12,731 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;@34a2b67b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:12,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-19 05:54:12,740 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:12,740 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2024-11-19 05:54:12,740 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:12,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:12,741 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] [2024-11-19 05:54:12,741 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:12,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:12,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2058564795, now seen corresponding path program 1 times [2024-11-19 05:54:12,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:12,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471719544] [2024-11-19 05:54:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:12,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:12,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:12,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471719544] [2024-11-19 05:54:12,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471719544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:12,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:12,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:12,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740032573] [2024-11-19 05:54:12,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:12,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:54:12,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:12,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:54:12,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:54:12,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 289 [2024-11-19 05:54:12,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 289 transitions, 594 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:12,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:12,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 289 [2024-11-19 05:54:12,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:14,031 INFO L124 PetriNetUnfolderBase]: 1733/9097 cut-off events. [2024-11-19 05:54:14,031 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-19 05:54:14,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11797 conditions, 9097 events. 1733/9097 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 100917 event pairs, 1620 based on Foata normal form. 2258/10244 useless extension candidates. Maximal degree in co-relation 10589. Up to 2642 conditions per place. [2024-11-19 05:54:14,123 INFO L140 encePairwiseOnDemand]: 257/289 looper letters, 30 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2024-11-19 05:54:14,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 251 transitions, 578 flow [2024-11-19 05:54:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:54:14,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:54:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 510 transitions. [2024-11-19 05:54:14,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-11-19 05:54:14,125 INFO L175 Difference]: Start difference. First operand has 258 places, 289 transitions, 594 flow. Second operand 2 states and 510 transitions. [2024-11-19 05:54:14,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 251 transitions, 578 flow [2024-11-19 05:54:14,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 251 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:14,131 INFO L231 Difference]: Finished difference. Result has 253 places, 251 transitions, 518 flow [2024-11-19 05:54:14,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=518, PETRI_PLACES=253, PETRI_TRANSITIONS=251} [2024-11-19 05:54:14,132 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -5 predicate places. [2024-11-19 05:54:14,132 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 251 transitions, 518 flow [2024-11-19 05:54:14,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:14,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:14,134 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] [2024-11-19 05:54:14,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:54:14,135 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:14,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2055714419, now seen corresponding path program 1 times [2024-11-19 05:54:14,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:14,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711784397] [2024-11-19 05:54:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:14,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:14,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711784397] [2024-11-19 05:54:14,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711784397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:14,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:14,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:14,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124844057] [2024-11-19 05:54:14,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:14,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:14,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:14,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:14,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:14,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 289 [2024-11-19 05:54:14,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 251 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:14,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:14,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 289 [2024-11-19 05:54:14,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:15,855 INFO L124 PetriNetUnfolderBase]: 2529/12797 cut-off events. [2024-11-19 05:54:15,856 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-11-19 05:54:15,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 12797 events. 2529/12797 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 150315 event pairs, 1098 based on Foata normal form. 1/11369 useless extension candidates. Maximal degree in co-relation 16701. Up to 3840 conditions per place. [2024-11-19 05:54:15,953 INFO L140 encePairwiseOnDemand]: 286/289 looper letters, 44 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2024-11-19 05:54:15,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 261 transitions, 630 flow [2024-11-19 05:54:15,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-11-19 05:54:15,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085351787773933 [2024-11-19 05:54:15,956 INFO L175 Difference]: Start difference. First operand has 253 places, 251 transitions, 518 flow. Second operand 3 states and 701 transitions. [2024-11-19 05:54:15,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 261 transitions, 630 flow [2024-11-19 05:54:15,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 261 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:15,961 INFO L231 Difference]: Finished difference. Result has 256 places, 252 transitions, 530 flow [2024-11-19 05:54:15,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=256, PETRI_TRANSITIONS=252} [2024-11-19 05:54:15,963 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -2 predicate places. [2024-11-19 05:54:15,963 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 252 transitions, 530 flow [2024-11-19 05:54:15,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:15,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:15,964 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] [2024-11-19 05:54:15,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:54:15,964 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:15,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash 257208615, now seen corresponding path program 1 times [2024-11-19 05:54:15,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:15,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881742478] [2024-11-19 05:54:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:16,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:16,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:16,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881742478] [2024-11-19 05:54:16,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881742478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:16,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:16,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:16,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492382184] [2024-11-19 05:54:16,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:16,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:16,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:16,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:16,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:16,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 289 [2024-11-19 05:54:16,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 252 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:16,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:16,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 289 [2024-11-19 05:54:16,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:18,527 INFO L124 PetriNetUnfolderBase]: 4384/17285 cut-off events. [2024-11-19 05:54:18,528 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2024-11-19 05:54:18,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24452 conditions, 17285 events. 4384/17285 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 204989 event pairs, 2104 based on Foata normal form. 0/15593 useless extension candidates. Maximal degree in co-relation 24445. Up to 5258 conditions per place. [2024-11-19 05:54:18,655 INFO L140 encePairwiseOnDemand]: 283/289 looper letters, 114 selfloop transitions, 6 changer transitions 0/323 dead transitions. [2024-11-19 05:54:18,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 323 transitions, 912 flow [2024-11-19 05:54:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1356 transitions. [2024-11-19 05:54:18,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7820069204152249 [2024-11-19 05:54:18,660 INFO L175 Difference]: Start difference. First operand has 256 places, 252 transitions, 530 flow. Second operand 6 states and 1356 transitions. [2024-11-19 05:54:18,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 323 transitions, 912 flow [2024-11-19 05:54:18,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 323 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:18,667 INFO L231 Difference]: Finished difference. Result has 259 places, 251 transitions, 538 flow [2024-11-19 05:54:18,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=538, PETRI_PLACES=259, PETRI_TRANSITIONS=251} [2024-11-19 05:54:18,669 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 1 predicate places. [2024-11-19 05:54:18,670 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 251 transitions, 538 flow [2024-11-19 05:54:18,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:18,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:18,672 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:18,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:54:18,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:18,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1088174321, now seen corresponding path program 1 times [2024-11-19 05:54:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558324687] [2024-11-19 05:54:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:18,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:18,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558324687] [2024-11-19 05:54:18,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558324687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:18,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458969283] [2024-11-19 05:54:18,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:18,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:18,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:18,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:18,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:18,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 289 [2024-11-19 05:54:18,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 251 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:18,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:18,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 289 [2024-11-19 05:54:18,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:26,466 INFO L124 PetriNetUnfolderBase]: 26162/85747 cut-off events. [2024-11-19 05:54:26,467 INFO L125 PetriNetUnfolderBase]: For 552/552 co-relation queries the response was YES. [2024-11-19 05:54:26,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128050 conditions, 85747 events. 26162/85747 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 1629. Compared 1195118 event pairs, 10477 based on Foata normal form. 0/76865 useless extension candidates. Maximal degree in co-relation 128043. Up to 26496 conditions per place. [2024-11-19 05:54:27,012 INFO L140 encePairwiseOnDemand]: 250/289 looper letters, 98 selfloop transitions, 28 changer transitions 0/308 dead transitions. [2024-11-19 05:54:27,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 308 transitions, 915 flow [2024-11-19 05:54:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:27,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2024-11-19 05:54:27,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.798154555940023 [2024-11-19 05:54:27,016 INFO L175 Difference]: Start difference. First operand has 259 places, 251 transitions, 538 flow. Second operand 3 states and 692 transitions. [2024-11-19 05:54:27,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 308 transitions, 915 flow [2024-11-19 05:54:27,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 308 transitions, 903 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:27,028 INFO L231 Difference]: Finished difference. Result has 258 places, 279 transitions, 772 flow [2024-11-19 05:54:27,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=772, PETRI_PLACES=258, PETRI_TRANSITIONS=279} [2024-11-19 05:54:27,030 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 0 predicate places. [2024-11-19 05:54:27,031 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 279 transitions, 772 flow [2024-11-19 05:54:27,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:27,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:27,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:27,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:54:27,033 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:27,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1058884623, now seen corresponding path program 1 times [2024-11-19 05:54:27,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:27,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229278164] [2024-11-19 05:54:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:27,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:27,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:27,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229278164] [2024-11-19 05:54:27,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229278164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480988573] [2024-11-19 05:54:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:27,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:27,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:27,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:54:27,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:27,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:54:27,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:54:27,253 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:54:27,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480988573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:27,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:54:27,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:54:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970014557] [2024-11-19 05:54:27,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:27,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 289 [2024-11-19 05:54:27,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 279 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:27,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:27,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 289 [2024-11-19 05:54:27,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:36,848 INFO L124 PetriNetUnfolderBase]: 27093/95640 cut-off events. [2024-11-19 05:54:36,849 INFO L125 PetriNetUnfolderBase]: For 29302/30568 co-relation queries the response was YES. [2024-11-19 05:54:37,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168012 conditions, 95640 events. 27093/95640 cut-off events. For 29302/30568 co-relation queries the response was YES. Maximal size of possible extension queue 1805. Compared 1384883 event pairs, 16434 based on Foata normal form. 292/86863 useless extension candidates. Maximal degree in co-relation 168004. Up to 36690 conditions per place. [2024-11-19 05:54:37,594 INFO L140 encePairwiseOnDemand]: 273/289 looper letters, 86 selfloop transitions, 28 changer transitions 0/323 dead transitions. [2024-11-19 05:54:37,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 323 transitions, 1160 flow [2024-11-19 05:54:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 689 transitions. [2024-11-19 05:54:37,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7946943483275664 [2024-11-19 05:54:37,597 INFO L175 Difference]: Start difference. First operand has 258 places, 279 transitions, 772 flow. Second operand 3 states and 689 transitions. [2024-11-19 05:54:37,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 323 transitions, 1160 flow [2024-11-19 05:54:37,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 323 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:37,711 INFO L231 Difference]: Finished difference. Result has 260 places, 305 transitions, 982 flow [2024-11-19 05:54:37,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=982, PETRI_PLACES=260, PETRI_TRANSITIONS=305} [2024-11-19 05:54:37,712 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 2 predicate places. [2024-11-19 05:54:37,713 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 305 transitions, 982 flow [2024-11-19 05:54:37,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:37,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:37,714 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:37,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 05:54:37,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 05:54:37,919 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:37,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:37,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1908698949, now seen corresponding path program 1 times [2024-11-19 05:54:37,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:37,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398350131] [2024-11-19 05:54:37,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:37,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:37,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398350131] [2024-11-19 05:54:37,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398350131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:37,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:37,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533517351] [2024-11-19 05:54:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:37,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:37,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:37,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:37,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:38,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 289 [2024-11-19 05:54:38,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 305 transitions, 982 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:38,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:38,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 289 [2024-11-19 05:54:38,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:48,609 INFO L124 PetriNetUnfolderBase]: 27230/110035 cut-off events. [2024-11-19 05:54:48,609 INFO L125 PetriNetUnfolderBase]: For 15354/17874 co-relation queries the response was YES. [2024-11-19 05:54:49,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177276 conditions, 110035 events. 27230/110035 cut-off events. For 15354/17874 co-relation queries the response was YES. Maximal size of possible extension queue 2381. Compared 1713903 event pairs, 11631 based on Foata normal form. 281/97996 useless extension candidates. Maximal degree in co-relation 177267. Up to 20219 conditions per place. [2024-11-19 05:54:49,641 INFO L140 encePairwiseOnDemand]: 278/289 looper letters, 65 selfloop transitions, 9 changer transitions 0/336 dead transitions. [2024-11-19 05:54:49,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 336 transitions, 1194 flow [2024-11-19 05:54:49,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 715 transitions. [2024-11-19 05:54:49,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246828143021915 [2024-11-19 05:54:49,644 INFO L175 Difference]: Start difference. First operand has 260 places, 305 transitions, 982 flow. Second operand 3 states and 715 transitions. [2024-11-19 05:54:49,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 336 transitions, 1194 flow [2024-11-19 05:54:49,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 336 transitions, 1138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:49,702 INFO L231 Difference]: Finished difference. Result has 261 places, 310 transitions, 986 flow [2024-11-19 05:54:49,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=986, PETRI_PLACES=261, PETRI_TRANSITIONS=310} [2024-11-19 05:54:49,703 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 3 predicate places. [2024-11-19 05:54:49,703 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 310 transitions, 986 flow [2024-11-19 05:54:49,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:49,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:49,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:49,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:54:49,705 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:49,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:49,705 INFO L85 PathProgramCache]: Analyzing trace with hash 439729732, now seen corresponding path program 1 times [2024-11-19 05:54:49,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:49,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203815103] [2024-11-19 05:54:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:49,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:49,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203815103] [2024-11-19 05:54:49,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203815103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:49,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862199040] [2024-11-19 05:54:49,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:49,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:49,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:49,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:54:49,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:54:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:49,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:49,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:49,925 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:49,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862199040] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:49,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:49,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809506671] [2024-11-19 05:54:49,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:49,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:49,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:49,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:49,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:50,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 289 [2024-11-19 05:54:50,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 310 transitions, 986 flow. Second operand has 10 states, 10 states have (on average 217.4) internal successors, (2174), 10 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:50,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:50,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 289 [2024-11-19 05:54:50,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:50,242 INFO L124 PetriNetUnfolderBase]: 281/1256 cut-off events. [2024-11-19 05:54:50,243 INFO L125 PetriNetUnfolderBase]: For 93/99 co-relation queries the response was YES. [2024-11-19 05:54:50,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 1256 events. 281/1256 cut-off events. For 93/99 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9085 event pairs, 35 based on Foata normal form. 46/1261 useless extension candidates. Maximal degree in co-relation 1914. Up to 194 conditions per place. [2024-11-19 05:54:50,251 INFO L140 encePairwiseOnDemand]: 284/289 looper letters, 50 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2024-11-19 05:54:50,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 136 transitions, 442 flow [2024-11-19 05:54:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1994 transitions. [2024-11-19 05:54:50,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7666282199154172 [2024-11-19 05:54:50,257 INFO L175 Difference]: Start difference. First operand has 261 places, 310 transitions, 986 flow. Second operand 9 states and 1994 transitions. [2024-11-19 05:54:50,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 136 transitions, 442 flow [2024-11-19 05:54:50,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 136 transitions, 428 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-19 05:54:50,262 INFO L231 Difference]: Finished difference. Result has 113 places, 98 transitions, 252 flow [2024-11-19 05:54:50,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=252, PETRI_PLACES=113, PETRI_TRANSITIONS=98} [2024-11-19 05:54:50,263 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -145 predicate places. [2024-11-19 05:54:50,263 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 98 transitions, 252 flow [2024-11-19 05:54:50,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 217.4) internal successors, (2174), 10 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:50,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:50,266 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:50,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 05:54:50,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 05:54:50,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:50,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash 279989366, now seen corresponding path program 1 times [2024-11-19 05:54:50,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:50,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658298056] [2024-11-19 05:54:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:50,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:50,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:50,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:50,516 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:50,516 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-19 05:54:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-19 05:54:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-19 05:54:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-19 05:54:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-19 05:54:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-19 05:54:50,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-19 05:54:50,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-19 05:54:50,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-19 05:54:50,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-19 05:54:50,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-19 05:54:50,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-19 05:54:50,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-19 05:54:50,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-19 05:54:50,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-19 05:54:50,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-19 05:54:50,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-19 05:54:50,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-19 05:54:50,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-19 05:54:50,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:54:50,522 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:50,523 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:50,525 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:54:50,573 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:54:50,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 368 transitions, 763 flow [2024-11-19 05:54:50,678 INFO L124 PetriNetUnfolderBase]: 93/766 cut-off events. [2024-11-19 05:54:50,678 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 05:54:50,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 766 events. 93/766 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3689 event pairs, 1 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 523. Up to 16 conditions per place. [2024-11-19 05:54:50,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 368 transitions, 763 flow [2024-11-19 05:54:50,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 368 transitions, 763 flow [2024-11-19 05:54:50,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:50,702 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;@34a2b67b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:50,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-19 05:54:50,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:50,706 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2024-11-19 05:54:50,706 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:50,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:50,706 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] [2024-11-19 05:54:50,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-19 05:54:50,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:50,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2081171131, now seen corresponding path program 1 times [2024-11-19 05:54:50,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:50,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942844353] [2024-11-19 05:54:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:50,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:50,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:50,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942844353] [2024-11-19 05:54:50,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942844353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:50,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:50,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:50,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424141698] [2024-11-19 05:54:50,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:50,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:54:50,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:50,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:54:50,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:54:50,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 368 [2024-11-19 05:54:50,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 368 transitions, 763 flow. Second operand has 2 states, 2 states have (on average 282.5) internal successors, (565), 2 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:50,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:50,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 368 [2024-11-19 05:54:50,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand