./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:48:50,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:48:50,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:48:50,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:48:50,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:48:50,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:48:50,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:48:50,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:48:50,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:48:50,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:48:50,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:48:50,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:48:50,446 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:48:50,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:48:50,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:48:50,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:48:50,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:48:50,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:48:50,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:48:50,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:48:50,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:48:50,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:48:50,453 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:48:50,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:48:50,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:48:50,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:48:50,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:48:50,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:48:50,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:48:50,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:48:50,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:48:50,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:48:50,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:48:50,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:48:50,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:48:50,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:48:50,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:48:50,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:48:50,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:48:50,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:48:50,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:48:50,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 [2024-11-20 13:48:50,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:48:50,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:48:50,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:48:50,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:48:50,726 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:48:50,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2024-11-20 13:48:52,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:48:52,471 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:48:52,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2024-11-20 13:48:52,486 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5036d8fed/0417afb2124b4b50a38a03e2a05394d5/FLAG840286b2b [2024-11-20 13:48:52,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5036d8fed/0417afb2124b4b50a38a03e2a05394d5 [2024-11-20 13:48:52,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:48:52,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:48:52,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:48:52,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:48:52,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:48:52,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:48:52" (1/1) ... [2024-11-20 13:48:52,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f99698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:52, skipping insertion in model container [2024-11-20 13:48:52,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:48:52" (1/1) ... [2024-11-20 13:48:52,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:48:52,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:48:52,970 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:48:53,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:48:53,072 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:48:53,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53 WrapperNode [2024-11-20 13:48:53,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:48:53,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:48:53,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:48:53,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:48:53,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,134 INFO L138 Inliner]: procedures = 173, calls = 48, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 276 [2024-11-20 13:48:53,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:48:53,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:48:53,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:48:53,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:48:53,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:48:53,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:48:53,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:48:53,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:48:53,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (1/1) ... [2024-11-20 13:48:53,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:48:53,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:48:53,242 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) [2024-11-20 13:48:53,249 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 [2024-11-20 13:48:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:48:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-20 13:48:53,287 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-20 13:48:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:48:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:48:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:48:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 13:48:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-20 13:48:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-20 13:48:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:48:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:48:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:48:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:48:53,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:48:53,291 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:48:53,419 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:48:53,421 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:48:53,803 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:48:53,803 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:48:53,909 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:48:53,909 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-20 13:48:53,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:48:53 BoogieIcfgContainer [2024-11-20 13:48:53,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:48:53,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:48:53,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:48:53,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:48:53,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:48:52" (1/3) ... [2024-11-20 13:48:53,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eff1ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:48:53, skipping insertion in model container [2024-11-20 13:48:53,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:48:53" (2/3) ... [2024-11-20 13:48:53,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eff1ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:48:53, skipping insertion in model container [2024-11-20 13:48:53,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:48:53" (3/3) ... [2024-11-20 13:48:53,925 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2024-11-20 13:48:53,940 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:48:53,941 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-20 13:48:53,941 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:48:54,051 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-20 13:48:54,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 282 transitions, 584 flow [2024-11-20 13:48:54,291 INFO L124 PetriNetUnfolderBase]: 61/541 cut-off events. [2024-11-20 13:48:54,292 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 13:48:54,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 541 events. 61/541 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2683 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 296. Up to 8 conditions per place. [2024-11-20 13:48:54,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 282 transitions, 584 flow [2024-11-20 13:48:54,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 282 transitions, 584 flow [2024-11-20 13:48:54,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:48:54,343 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;@39340116, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:48:54,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-20 13:48:54,359 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:48:54,359 INFO L124 PetriNetUnfolderBase]: 3/60 cut-off events. [2024-11-20 13:48:54,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:48:54,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:54,361 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] [2024-11-20 13:48:54,362 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:48:54,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1431440988, now seen corresponding path program 1 times [2024-11-20 13:48:54,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:54,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124329525] [2024-11-20 13:48:54,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:54,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:55,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:55,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124329525] [2024-11-20 13:48:55,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124329525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:55,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:55,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:48:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378901348] [2024-11-20 13:48:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:55,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:48:55,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:55,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:48:55,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:48:55,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 282 [2024-11-20 13:48:55,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 282 transitions, 584 flow. Second operand has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 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) [2024-11-20 13:48:55,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:55,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 282 [2024-11-20 13:48:55,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:48:57,836 INFO L124 PetriNetUnfolderBase]: 2757/13856 cut-off events. [2024-11-20 13:48:57,837 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-20 13:48:57,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18134 conditions, 13856 events. 2757/13856 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 173679 event pairs, 1758 based on Foata normal form. 3220/15831 useless extension candidates. Maximal degree in co-relation 16309. Up to 4109 conditions per place. [2024-11-20 13:48:57,952 INFO L140 encePairwiseOnDemand]: 248/282 looper letters, 74 selfloop transitions, 5 changer transitions 0/281 dead transitions. [2024-11-20 13:48:57,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 281 transitions, 740 flow [2024-11-20 13:48:57,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:48:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:48:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2024-11-20 13:48:57,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8156028368794326 [2024-11-20 13:48:57,978 INFO L175 Difference]: Start difference. First operand has 253 places, 282 transitions, 584 flow. Second operand 6 states and 1380 transitions. [2024-11-20 13:48:57,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 281 transitions, 740 flow [2024-11-20 13:48:57,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 281 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:48:58,046 INFO L231 Difference]: Finished difference. Result has 253 places, 249 transitions, 528 flow [2024-11-20 13:48:58,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=253, PETRI_TRANSITIONS=249} [2024-11-20 13:48:58,054 INFO L277 CegarLoopForPetriNet]: 253 programPoint places, 0 predicate places. [2024-11-20 13:48:58,055 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 249 transitions, 528 flow [2024-11-20 13:48:58,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 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) [2024-11-20 13:48:58,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:58,056 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] [2024-11-20 13:48:58,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:48:58,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:48:58,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:58,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2125433958, now seen corresponding path program 1 times [2024-11-20 13:48:58,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:58,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344815201] [2024-11-20 13:48:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:58,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:58,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344815201] [2024-11-20 13:48:58,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344815201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:58,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:58,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:48:58,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669322035] [2024-11-20 13:48:58,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:58,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:48:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:58,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:48:58,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:48:58,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 282 [2024-11-20 13:48:58,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 249 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2024-11-20 13:48:58,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:58,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 282 [2024-11-20 13:48:58,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:48:58,606 INFO L124 PetriNetUnfolderBase]: 333/2906 cut-off events. [2024-11-20 13:48:58,607 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-20 13:48:58,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3535 conditions, 2906 events. 333/2906 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 26904 event pairs, 280 based on Foata normal form. 1/2580 useless extension candidates. Maximal degree in co-relation 3366. Up to 538 conditions per place. [2024-11-20 13:48:58,632 INFO L140 encePairwiseOnDemand]: 279/282 looper letters, 34 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2024-11-20 13:48:58,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 257 transitions, 616 flow [2024-11-20 13:48:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:48:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:48:58,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 709 transitions. [2024-11-20 13:48:58,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8380614657210402 [2024-11-20 13:48:58,635 INFO L175 Difference]: Start difference. First operand has 253 places, 249 transitions, 528 flow. Second operand 3 states and 709 transitions. [2024-11-20 13:48:58,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 257 transitions, 616 flow [2024-11-20 13:48:58,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 257 transitions, 606 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:48:58,644 INFO L231 Difference]: Finished difference. Result has 251 places, 249 transitions, 526 flow [2024-11-20 13:48:58,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=251, PETRI_TRANSITIONS=249} [2024-11-20 13:48:58,646 INFO L277 CegarLoopForPetriNet]: 253 programPoint places, -2 predicate places. [2024-11-20 13:48:58,646 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 249 transitions, 526 flow [2024-11-20 13:48:58,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2024-11-20 13:48:58,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:58,647 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:48:58,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:48:58,648 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-20 13:48:58,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:58,649 INFO L85 PathProgramCache]: Analyzing trace with hash -668627574, now seen corresponding path program 1 times [2024-11-20 13:48:58,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:58,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920518563] [2024-11-20 13:48:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:48:58,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:48:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:48:58,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:48:58,739 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:48:58,741 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-20 13:48:58,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-20 13:48:58,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-20 13:48:58,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-20 13:48:58,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-20 13:48:58,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-20 13:48:58,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-20 13:48:58,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-20 13:48:58,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-20 13:48:58,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-20 13:48:58,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-11-20 13:48:58,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-20 13:48:58,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-20 13:48:58,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-20 13:48:58,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-20 13:48:58,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-20 13:48:58,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-20 13:48:58,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-20 13:48:58,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-20 13:48:58,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-20 13:48:58,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-20 13:48:58,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-20 13:48:58,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-20 13:48:58,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-20 13:48:58,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-20 13:48:58,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-20 13:48:58,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:48:58,752 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-20 13:48:58,756 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:48:58,756 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:48:58,846 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-20 13:48:58,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 456 transitions, 956 flow [2024-11-20 13:48:59,251 INFO L124 PetriNetUnfolderBase]: 205/1573 cut-off events. [2024-11-20 13:48:59,251 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-20 13:48:59,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 1573 events. 205/1573 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10247 event pairs, 2 based on Foata normal form. 0/1297 useless extension candidates. Maximal degree in co-relation 948. Up to 32 conditions per place. [2024-11-20 13:48:59,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 456 transitions, 956 flow [2024-11-20 13:48:59,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 401 places, 456 transitions, 956 flow [2024-11-20 13:48:59,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:48:59,309 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;@39340116, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:48:59,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-20 13:48:59,318 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:48:59,318 INFO L124 PetriNetUnfolderBase]: 3/60 cut-off events. [2024-11-20 13:48:59,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:48:59,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:59,318 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] [2024-11-20 13:48:59,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:48:59,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:59,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1799443996, now seen corresponding path program 1 times [2024-11-20 13:48:59,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:59,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369491375] [2024-11-20 13:48:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:59,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:59,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:59,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369491375] [2024-11-20 13:48:59,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369491375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:59,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:59,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:48:59,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730183159] [2024-11-20 13:48:59,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:59,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:48:59,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:48:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:48:59,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 456 [2024-11-20 13:48:59,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 456 transitions, 956 flow. Second operand has 6 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 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) [2024-11-20 13:48:59,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:59,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 456 [2024-11-20 13:48:59,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand