./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1 --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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:21:27,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:21:27,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 06:21:27,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:21:27,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:21:27,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:21:27,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:21:27,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:21:27,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:21:27,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:21:27,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:21:27,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:21:27,485 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:21:27,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:21:27,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:21:27,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:21:27,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:21:27,486 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:21:27,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:21:27,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:21:27,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:21:27,488 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1 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 -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2024-12-02 06:21:27,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:21:27,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:21:27,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:21:27,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:21:27,763 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:21:27,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-12-02 06:21:30,536 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/data/653b67d31/e0a8a73ef7b9425e8b7d4496062ef01f/FLAG0b8fc84f6 [2024-12-02 06:21:30,793 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:21:30,793 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-12-02 06:21:30,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/data/653b67d31/e0a8a73ef7b9425e8b7d4496062ef01f/FLAG0b8fc84f6 [2024-12-02 06:21:30,823 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/data/653b67d31/e0a8a73ef7b9425e8b7d4496062ef01f [2024-12-02 06:21:30,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:21:30,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:21:30,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:21:30,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:21:30,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:21:30,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:30" (1/1) ... [2024-12-02 06:21:30,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1354601d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:30, skipping insertion in model container [2024-12-02 06:21:30,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:21:30" (1/1) ... [2024-12-02 06:21:30,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:21:31,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:21:31,263 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:21:31,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:21:31,364 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:21:31,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31 WrapperNode [2024-12-02 06:21:31,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:21:31,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:21:31,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:21:31,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:21:31,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,411 INFO L138 Inliner]: procedures = 252, calls = 53, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 209 [2024-12-02 06:21:31,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:21:31,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:21:31,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:21:31,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:21:31,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,432 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:21:31,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:21:31,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:21:31,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:21:31,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (1/1) ... [2024-12-02 06:21:31,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:21:31,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:21:31,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:21:31,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9510afa-505b-4b4a-b8e2-313d1d953177/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 06:21:31,502 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 06:21:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:21:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:21:31,504 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 06:21:31,617 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:21:31,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:21:31,908 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 06:21:31,909 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:21:31,948 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:21:31,948 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-12-02 06:21:31,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:31 BoogieIcfgContainer [2024-12-02 06:21:31,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:21:31,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:21:31,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:21:31,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:21:31,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:21:30" (1/3) ... [2024-12-02 06:21:31,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735518e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:31, skipping insertion in model container [2024-12-02 06:21:31,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:21:31" (2/3) ... [2024-12-02 06:21:31,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735518e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:21:31, skipping insertion in model container [2024-12-02 06:21:31,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:21:31" (3/3) ... [2024-12-02 06:21:31,956 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2024-12-02 06:21:31,966 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:21:31,968 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_27-funptr_racing.i that has 2 procedures, 195 locations, 1 initial locations, 9 loop locations, and 13 error locations. [2024-12-02 06:21:31,968 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 06:21:32,053 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 06:21:32,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 215 transitions, 437 flow [2024-12-02 06:21:32,191 INFO L124 PetriNetUnfolderBase]: 26/284 cut-off events. [2024-12-02 06:21:32,193 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 06:21:32,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 26/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1003 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 176. Up to 4 conditions per place. [2024-12-02 06:21:32,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 215 transitions, 437 flow [2024-12-02 06:21:32,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 215 transitions, 437 flow [2024-12-02 06:21:32,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:21:32,227 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;@66233f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:21:32,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-12-02 06:21:32,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 06:21:32,238 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-12-02 06:21:32,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 06:21:32,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:32,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:32,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-12-02 06:21:32,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:32,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1012464323, now seen corresponding path program 1 times [2024-12-02 06:21:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:32,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816699959] [2024-12-02 06:21:32,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:32,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:32,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816699959] [2024-12-02 06:21:32,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816699959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:32,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:32,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:21:32,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972698189] [2024-12-02 06:21:32,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:32,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:21:32,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:32,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:21:32,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:21:32,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 215 [2024-12-02 06:21:32,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 215 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-12-02 06:21:32,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:32,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 215 [2024-12-02 06:21:32,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:32,881 INFO L124 PetriNetUnfolderBase]: 123/1110 cut-off events. [2024-12-02 06:21:32,881 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 06:21:32,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1110 events. 123/1110 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7374 event pairs, 108 based on Foata normal form. 131/1116 useless extension candidates. Maximal degree in co-relation 1306. Up to 254 conditions per place. [2024-12-02 06:21:32,889 INFO L140 encePairwiseOnDemand]: 194/215 looper letters, 36 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-12-02 06:21:32,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 207 transitions, 497 flow [2024-12-02 06:21:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:21:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:21:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2024-12-02 06:21:32,904 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992248062015504 [2024-12-02 06:21:32,906 INFO L175 Difference]: Start difference. First operand has 198 places, 215 transitions, 437 flow. Second operand 3 states and 580 transitions. [2024-12-02 06:21:32,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 207 transitions, 497 flow [2024-12-02 06:21:32,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 207 transitions, 497 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 06:21:32,917 INFO L231 Difference]: Finished difference. Result has 199 places, 195 transitions, 405 flow [2024-12-02 06:21:32,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=199, PETRI_TRANSITIONS=195} [2024-12-02 06:21:32,924 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 1 predicate places. [2024-12-02 06:21:32,924 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 195 transitions, 405 flow [2024-12-02 06:21:32,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-12-02 06:21:32,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:32,925 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:32,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:21:32,925 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-12-02 06:21:32,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1553661643, now seen corresponding path program 1 times [2024-12-02 06:21:32,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:32,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340352219] [2024-12-02 06:21:32,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:33,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:33,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:33,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340352219] [2024-12-02 06:21:33,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340352219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:33,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:33,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:21:33,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157129285] [2024-12-02 06:21:33,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:33,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:21:33,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:33,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:21:33,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:21:33,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 215 [2024-12-02 06:21:33,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 195 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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) [2024-12-02 06:21:33,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:33,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 215 [2024-12-02 06:21:33,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:34,058 INFO L124 PetriNetUnfolderBase]: 246/1513 cut-off events. [2024-12-02 06:21:34,058 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-12-02 06:21:34,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1513 events. 246/1513 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11550 event pairs, 179 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 1986. Up to 387 conditions per place. [2024-12-02 06:21:34,068 INFO L140 encePairwiseOnDemand]: 209/215 looper letters, 80 selfloop transitions, 5 changer transitions 0/242 dead transitions. [2024-12-02 06:21:34,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 242 transitions, 669 flow [2024-12-02 06:21:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:21:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:21:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1034 transitions. [2024-12-02 06:21:34,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8015503875968992 [2024-12-02 06:21:34,073 INFO L175 Difference]: Start difference. First operand has 199 places, 195 transitions, 405 flow. Second operand 6 states and 1034 transitions. [2024-12-02 06:21:34,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 242 transitions, 669 flow [2024-12-02 06:21:34,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 242 transitions, 665 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:21:34,079 INFO L231 Difference]: Finished difference. Result has 201 places, 194 transitions, 409 flow [2024-12-02 06:21:34,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=409, PETRI_PLACES=201, PETRI_TRANSITIONS=194} [2024-12-02 06:21:34,080 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 3 predicate places. [2024-12-02 06:21:34,080 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 194 transitions, 409 flow [2024-12-02 06:21:34,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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) [2024-12-02 06:21:34,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:34,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:34,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:21:34,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-12-02 06:21:34,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:34,083 INFO L85 PathProgramCache]: Analyzing trace with hash -600438542, now seen corresponding path program 1 times [2024-12-02 06:21:34,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:34,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508027740] [2024-12-02 06:21:34,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:34,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:34,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:34,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508027740] [2024-12-02 06:21:34,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508027740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:34,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:34,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:21:34,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675165177] [2024-12-02 06:21:34,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:34,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:21:34,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:34,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:21:34,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:21:34,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 215 [2024-12-02 06:21:34,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 194 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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) [2024-12-02 06:21:34,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:34,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 215 [2024-12-02 06:21:34,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:34,471 INFO L124 PetriNetUnfolderBase]: 170/1602 cut-off events. [2024-12-02 06:21:34,472 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 06:21:34,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1602 events. 170/1602 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12529 event pairs, 12 based on Foata normal form. 0/1433 useless extension candidates. Maximal degree in co-relation 1920. Up to 189 conditions per place. [2024-12-02 06:21:34,478 INFO L140 encePairwiseOnDemand]: 211/215 looper letters, 41 selfloop transitions, 3 changer transitions 0/214 dead transitions. [2024-12-02 06:21:34,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 214 transitions, 540 flow [2024-12-02 06:21:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:21:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:21:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2024-12-02 06:21:34,480 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8697674418604651 [2024-12-02 06:21:34,481 INFO L175 Difference]: Start difference. First operand has 201 places, 194 transitions, 409 flow. Second operand 3 states and 561 transitions. [2024-12-02 06:21:34,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 214 transitions, 540 flow [2024-12-02 06:21:34,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 214 transitions, 530 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 06:21:34,485 INFO L231 Difference]: Finished difference. Result has 200 places, 196 transitions, 421 flow [2024-12-02 06:21:34,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=421, PETRI_PLACES=200, PETRI_TRANSITIONS=196} [2024-12-02 06:21:34,486 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 2 predicate places. [2024-12-02 06:21:34,486 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 196 transitions, 421 flow [2024-12-02 06:21:34,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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) [2024-12-02 06:21:34,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:34,487 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:34,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:21:34,487 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-12-02 06:21:34,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash -813534782, now seen corresponding path program 1 times [2024-12-02 06:21:34,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:34,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052555709] [2024-12-02 06:21:34,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:34,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:34,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052555709] [2024-12-02 06:21:34,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052555709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:34,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:34,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:21:34,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732227782] [2024-12-02 06:21:34,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:34,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:21:34,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:34,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:21:34,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:21:34,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 215 [2024-12-02 06:21:34,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 196 transitions, 421 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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) [2024-12-02 06:21:34,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:34,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 215 [2024-12-02 06:21:34,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:34,760 INFO L124 PetriNetUnfolderBase]: 39/382 cut-off events. [2024-12-02 06:21:34,760 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-12-02 06:21:34,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 382 events. 39/382 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1423 event pairs, 0 based on Foata normal form. 13/368 useless extension candidates. Maximal degree in co-relation 442. Up to 25 conditions per place. [2024-12-02 06:21:34,762 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 50 selfloop transitions, 4 changer transitions 0/175 dead transitions. [2024-12-02 06:21:34,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 175 transitions, 470 flow [2024-12-02 06:21:34,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:21:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:21:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1063 transitions. [2024-12-02 06:21:34,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8240310077519379 [2024-12-02 06:21:34,766 INFO L175 Difference]: Start difference. First operand has 200 places, 196 transitions, 421 flow. Second operand 6 states and 1063 transitions. [2024-12-02 06:21:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 175 transitions, 470 flow [2024-12-02 06:21:34,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 175 transitions, 463 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-12-02 06:21:34,769 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 291 flow [2024-12-02 06:21:34,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2024-12-02 06:21:34,770 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -51 predicate places. [2024-12-02 06:21:34,770 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 291 flow [2024-12-02 06:21:34,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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) [2024-12-02 06:21:34,771 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:34,772 INFO L206 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, 1] [2024-12-02 06:21:34,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:21:34,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-12-02 06:21:34,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1659661809, now seen corresponding path program 1 times [2024-12-02 06:21:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:34,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095117702] [2024-12-02 06:21:34,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:21:34,796 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:21:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:21:34,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 06:21:34,833 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:21:34,834 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-12-02 06:21:34,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-12-02 06:21:34,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-12-02 06:21:34,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-12-02 06:21:34,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-12-02 06:21:34,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-12-02 06:21:34,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-12-02 06:21:34,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-12-02 06:21:34,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-12-02 06:21:34,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:21:34,839 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 06:21:34,841 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 06:21:34,842 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 06:21:34,882 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 06:21:34,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 321 transitions, 658 flow [2024-12-02 06:21:34,955 INFO L124 PetriNetUnfolderBase]: 48/487 cut-off events. [2024-12-02 06:21:34,955 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 06:21:34,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 487 events. 48/487 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2075 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 302. Up to 8 conditions per place. [2024-12-02 06:21:34,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 321 transitions, 658 flow [2024-12-02 06:21:34,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 321 transitions, 658 flow [2024-12-02 06:21:34,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:21:34,967 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;@66233f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:21:34,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-12-02 06:21:34,971 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 06:21:34,972 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-12-02 06:21:34,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 06:21:34,972 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:34,972 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:34,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:21:34,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:34,973 INFO L85 PathProgramCache]: Analyzing trace with hash -666429052, now seen corresponding path program 1 times [2024-12-02 06:21:34,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:34,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182659670] [2024-12-02 06:21:34,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:34,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:35,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182659670] [2024-12-02 06:21:35,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182659670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:35,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:35,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:21:35,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914329428] [2024-12-02 06:21:35,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:35,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:21:35,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:35,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:21:35,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:21:35,036 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 321 [2024-12-02 06:21:35,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 321 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2024-12-02 06:21:35,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:35,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 321 [2024-12-02 06:21:35,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:37,318 INFO L124 PetriNetUnfolderBase]: 3460/16760 cut-off events. [2024-12-02 06:21:37,318 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2024-12-02 06:21:37,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22311 conditions, 16760 events. 3460/16760 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 208920 event pairs, 1584 based on Foata normal form. 3090/18209 useless extension candidates. Maximal degree in co-relation 1883. Up to 5465 conditions per place. [2024-12-02 06:21:37,403 INFO L140 encePairwiseOnDemand]: 288/321 looper letters, 51 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2024-12-02 06:21:37,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 302 transitions, 726 flow [2024-12-02 06:21:37,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:21:37,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:21:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 847 transitions. [2024-12-02 06:21:37,406 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8795430944963655 [2024-12-02 06:21:37,406 INFO L175 Difference]: Start difference. First operand has 292 places, 321 transitions, 658 flow. Second operand 3 states and 847 transitions. [2024-12-02 06:21:37,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 302 transitions, 726 flow [2024-12-02 06:21:37,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 302 transitions, 726 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 06:21:37,411 INFO L231 Difference]: Finished difference. Result has 293 places, 290 transitions, 606 flow [2024-12-02 06:21:37,412 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=293, PETRI_TRANSITIONS=290} [2024-12-02 06:21:37,413 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 1 predicate places. [2024-12-02 06:21:37,413 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 290 transitions, 606 flow [2024-12-02 06:21:37,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2024-12-02 06:21:37,413 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:37,414 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:37,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:21:37,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:21:37,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:37,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1250125460, now seen corresponding path program 1 times [2024-12-02 06:21:37,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:37,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581416445] [2024-12-02 06:21:37,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:37,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:37,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:37,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581416445] [2024-12-02 06:21:37,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581416445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:37,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:37,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:21:37,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300727138] [2024-12-02 06:21:37,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:37,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:21:37,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:37,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:21:37,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:21:37,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 321 [2024-12-02 06:21:37,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 290 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 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) [2024-12-02 06:21:37,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:37,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 321 [2024-12-02 06:21:37,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:40,698 INFO L124 PetriNetUnfolderBase]: 6951/28147 cut-off events. [2024-12-02 06:21:40,698 INFO L125 PetriNetUnfolderBase]: For 345/384 co-relation queries the response was YES. [2024-12-02 06:21:40,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39106 conditions, 28147 events. 6951/28147 cut-off events. For 345/384 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 368995 event pairs, 3215 based on Foata normal form. 0/25277 useless extension candidates. Maximal degree in co-relation 38888. Up to 7803 conditions per place. [2024-12-02 06:21:40,801 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 142 selfloop transitions, 6 changer transitions 0/385 dead transitions. [2024-12-02 06:21:40,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 385 transitions, 1092 flow [2024-12-02 06:21:40,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:21:40,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:21:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1576 transitions. [2024-12-02 06:21:40,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.818276220145379 [2024-12-02 06:21:40,803 INFO L175 Difference]: Start difference. First operand has 293 places, 290 transitions, 606 flow. Second operand 6 states and 1576 transitions. [2024-12-02 06:21:40,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 385 transitions, 1092 flow [2024-12-02 06:21:40,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 385 transitions, 1090 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 06:21:40,809 INFO L231 Difference]: Finished difference. Result has 296 places, 289 transitions, 614 flow [2024-12-02 06:21:40,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=614, PETRI_PLACES=296, PETRI_TRANSITIONS=289} [2024-12-02 06:21:40,810 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 4 predicate places. [2024-12-02 06:21:40,810 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 289 transitions, 614 flow [2024-12-02 06:21:40,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 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) [2024-12-02 06:21:40,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:40,811 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:40,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:21:40,811 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:21:40,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:40,812 INFO L85 PathProgramCache]: Analyzing trace with hash -972118406, now seen corresponding path program 1 times [2024-12-02 06:21:40,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:40,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595522057] [2024-12-02 06:21:40,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:40,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:40,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595522057] [2024-12-02 06:21:40,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595522057] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:40,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:40,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:21:40,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329988178] [2024-12-02 06:21:40,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:40,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:21:40,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:40,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:21:40,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:21:40,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 321 [2024-12-02 06:21:40,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 289 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2024-12-02 06:21:40,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:40,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 321 [2024-12-02 06:21:40,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:43,845 INFO L124 PetriNetUnfolderBase]: 6242/30828 cut-off events. [2024-12-02 06:21:43,846 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-12-02 06:21:43,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40778 conditions, 30828 events. 6242/30828 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 425552 event pairs, 1648 based on Foata normal form. 0/27517 useless extension candidates. Maximal degree in co-relation 38700. Up to 5556 conditions per place. [2024-12-02 06:21:43,971 INFO L140 encePairwiseOnDemand]: 314/321 looper letters, 74 selfloop transitions, 5 changer transitions 0/327 dead transitions. [2024-12-02 06:21:43,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 327 transitions, 859 flow [2024-12-02 06:21:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:21:43,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:21:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 828 transitions. [2024-12-02 06:21:43,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8598130841121495 [2024-12-02 06:21:43,973 INFO L175 Difference]: Start difference. First operand has 296 places, 289 transitions, 614 flow. Second operand 3 states and 828 transitions. [2024-12-02 06:21:43,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 327 transitions, 859 flow [2024-12-02 06:21:43,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 327 transitions, 847 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 06:21:43,977 INFO L231 Difference]: Finished difference. Result has 295 places, 294 transitions, 646 flow [2024-12-02 06:21:43,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=295, PETRI_TRANSITIONS=294} [2024-12-02 06:21:43,978 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 3 predicate places. [2024-12-02 06:21:43,978 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 294 transitions, 646 flow [2024-12-02 06:21:43,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2024-12-02 06:21:43,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:43,979 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:43,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:21:43,979 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:21:43,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash 802769467, now seen corresponding path program 1 times [2024-12-02 06:21:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:43,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396946811] [2024-12-02 06:21:43,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:43,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:44,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:44,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396946811] [2024-12-02 06:21:44,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396946811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:44,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:44,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:21:44,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966447418] [2024-12-02 06:21:44,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:44,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:21:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:44,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:21:44,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:21:44,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 321 [2024-12-02 06:21:44,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 294 transitions, 646 flow. Second operand has 5 states, 5 states have (on average 249.8) internal successors, (1249), 5 states have internal predecessors, (1249), 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) [2024-12-02 06:21:44,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:44,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 321 [2024-12-02 06:21:44,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:47,142 INFO L124 PetriNetUnfolderBase]: 7117/34934 cut-off events. [2024-12-02 06:21:47,142 INFO L125 PetriNetUnfolderBase]: For 709/717 co-relation queries the response was YES. [2024-12-02 06:21:47,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47621 conditions, 34934 events. 7117/34934 cut-off events. For 709/717 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 493256 event pairs, 3717 based on Foata normal form. 13/31004 useless extension candidates. Maximal degree in co-relation 43363. Up to 10396 conditions per place. [2024-12-02 06:21:47,275 INFO L140 encePairwiseOnDemand]: 316/321 looper letters, 100 selfloop transitions, 5 changer transitions 0/356 dead transitions. [2024-12-02 06:21:47,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 356 transitions, 980 flow [2024-12-02 06:21:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:21:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:21:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1594 transitions. [2024-12-02 06:21:47,280 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8276220145379024 [2024-12-02 06:21:47,280 INFO L175 Difference]: Start difference. First operand has 295 places, 294 transitions, 646 flow. Second operand 6 states and 1594 transitions. [2024-12-02 06:21:47,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 356 transitions, 980 flow [2024-12-02 06:21:47,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 356 transitions, 970 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:21:47,295 INFO L231 Difference]: Finished difference. Result has 301 places, 296 transitions, 662 flow [2024-12-02 06:21:47,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=301, PETRI_TRANSITIONS=296} [2024-12-02 06:21:47,296 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 9 predicate places. [2024-12-02 06:21:47,296 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 296 transitions, 662 flow [2024-12-02 06:21:47,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 249.8) internal successors, (1249), 5 states have internal predecessors, (1249), 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) [2024-12-02 06:21:47,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:47,297 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:47,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:21:47,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:21:47,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1439640689, now seen corresponding path program 1 times [2024-12-02 06:21:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:47,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956434605] [2024-12-02 06:21:47,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:21:47,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956434605] [2024-12-02 06:21:47,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956434605] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:47,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:47,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:21:47,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336738148] [2024-12-02 06:21:47,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:47,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:21:47,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:47,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:21:47,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:21:47,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 321 [2024-12-02 06:21:47,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 296 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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) [2024-12-02 06:21:47,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:21:47,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 321 [2024-12-02 06:21:47,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:21:59,418 INFO L124 PetriNetUnfolderBase]: 36162/135740 cut-off events. [2024-12-02 06:21:59,418 INFO L125 PetriNetUnfolderBase]: For 851/851 co-relation queries the response was YES. [2024-12-02 06:21:59,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194306 conditions, 135740 events. 36162/135740 cut-off events. For 851/851 co-relation queries the response was YES. Maximal size of possible extension queue 3360. Compared 2169511 event pairs, 14868 based on Foata normal form. 0/121965 useless extension candidates. Maximal degree in co-relation 193990. Up to 31067 conditions per place. [2024-12-02 06:21:59,969 INFO L140 encePairwiseOnDemand]: 286/321 looper letters, 102 selfloop transitions, 26 changer transitions 0/355 dead transitions. [2024-12-02 06:21:59,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 355 transitions, 1047 flow [2024-12-02 06:21:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:21:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:21:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2024-12-02 06:21:59,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8307372793354102 [2024-12-02 06:21:59,973 INFO L175 Difference]: Start difference. First operand has 301 places, 296 transitions, 662 flow. Second operand 3 states and 800 transitions. [2024-12-02 06:21:59,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 355 transitions, 1047 flow [2024-12-02 06:21:59,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 355 transitions, 1041 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-12-02 06:21:59,980 INFO L231 Difference]: Finished difference. Result has 303 places, 322 transitions, 882 flow [2024-12-02 06:21:59,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=303, PETRI_TRANSITIONS=322} [2024-12-02 06:21:59,981 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 11 predicate places. [2024-12-02 06:21:59,981 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 322 transitions, 882 flow [2024-12-02 06:21:59,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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) [2024-12-02 06:21:59,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:21:59,982 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:59,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:21:59,982 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:21:59,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1858201530, now seen corresponding path program 1 times [2024-12-02 06:21:59,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:59,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873256324] [2024-12-02 06:21:59,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:59,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:22:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:22:00,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:22:00,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873256324] [2024-12-02 06:22:00,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873256324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:22:00,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:22:00,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:22:00,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405461481] [2024-12-02 06:22:00,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:22:00,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:22:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:22:00,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:22:00,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:22:00,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 321 [2024-12-02 06:22:00,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 322 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2024-12-02 06:22:00,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:22:00,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 321 [2024-12-02 06:22:00,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:22:14,109 INFO L124 PetriNetUnfolderBase]: 33841/146578 cut-off events. [2024-12-02 06:22:14,109 INFO L125 PetriNetUnfolderBase]: For 34666/35986 co-relation queries the response was YES. [2024-12-02 06:22:14,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234184 conditions, 146578 events. 33841/146578 cut-off events. For 34666/35986 co-relation queries the response was YES. Maximal size of possible extension queue 3546. Compared 2458025 event pairs, 23541 based on Foata normal form. 194/133802 useless extension candidates. Maximal degree in co-relation 233843. Up to 47293 conditions per place. [2024-12-02 06:22:14,865 INFO L140 encePairwiseOnDemand]: 308/321 looper letters, 92 selfloop transitions, 22 changer transitions 0/362 dead transitions. [2024-12-02 06:22:14,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 362 transitions, 1252 flow [2024-12-02 06:22:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:22:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:22:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2024-12-02 06:22:14,868 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.818276220145379 [2024-12-02 06:22:14,868 INFO L175 Difference]: Start difference. First operand has 303 places, 322 transitions, 882 flow. Second operand 3 states and 788 transitions. [2024-12-02 06:22:14,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 362 transitions, 1252 flow [2024-12-02 06:22:14,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 362 transitions, 1182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:22:14,939 INFO L231 Difference]: Finished difference. Result has 305 places, 342 transitions, 1036 flow [2024-12-02 06:22:14,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1036, PETRI_PLACES=305, PETRI_TRANSITIONS=342} [2024-12-02 06:22:14,940 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 13 predicate places. [2024-12-02 06:22:14,940 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 342 transitions, 1036 flow [2024-12-02 06:22:14,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2024-12-02 06:22:14,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:22:14,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:22:14,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:22:14,941 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:22:14,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:22:14,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2054400863, now seen corresponding path program 1 times [2024-12-02 06:22:14,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:22:14,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516912767] [2024-12-02 06:22:14,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:22:14,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:22:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:22:14,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:22:14,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:22:14,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516912767] [2024-12-02 06:22:14,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516912767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:22:14,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:22:14,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:22:14,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124523997] [2024-12-02 06:22:14,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:22:14,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:22:14,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:22:14,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:22:14,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:22:15,056 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 321 [2024-12-02 06:22:15,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 342 transitions, 1036 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 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) [2024-12-02 06:22:15,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:22:15,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 321 [2024-12-02 06:22:15,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:22:30,353 INFO L124 PetriNetUnfolderBase]: 36104/157211 cut-off events. [2024-12-02 06:22:30,353 INFO L125 PetriNetUnfolderBase]: For 43384/45424 co-relation queries the response was YES. [2024-12-02 06:22:30,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254102 conditions, 157211 events. 36104/157211 cut-off events. For 43384/45424 co-relation queries the response was YES. Maximal size of possible extension queue 3748. Compared 2662703 event pairs, 24211 based on Foata normal form. 246/142453 useless extension candidates. Maximal degree in co-relation 253769. Up to 50147 conditions per place. [2024-12-02 06:22:31,246 INFO L140 encePairwiseOnDemand]: 308/321 looper letters, 110 selfloop transitions, 22 changer transitions 0/382 dead transitions. [2024-12-02 06:22:31,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 382 transitions, 1460 flow [2024-12-02 06:22:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:22:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:22:31,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2024-12-02 06:22:31,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.818276220145379 [2024-12-02 06:22:31,248 INFO L175 Difference]: Start difference. First operand has 305 places, 342 transitions, 1036 flow. Second operand 3 states and 788 transitions. [2024-12-02 06:22:31,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 382 transitions, 1460 flow [2024-12-02 06:22:31,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 382 transitions, 1416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:22:31,714 INFO L231 Difference]: Finished difference. Result has 307 places, 362 transitions, 1234 flow [2024-12-02 06:22:31,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1234, PETRI_PLACES=307, PETRI_TRANSITIONS=362} [2024-12-02 06:22:31,715 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 15 predicate places. [2024-12-02 06:22:31,715 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 362 transitions, 1234 flow [2024-12-02 06:22:31,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 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) [2024-12-02 06:22:31,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:22:31,715 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:22:31,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:22:31,715 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:22:31,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:22:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1197610001, now seen corresponding path program 1 times [2024-12-02 06:22:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:22:31,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426507390] [2024-12-02 06:22:31,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:22:31,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:22:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:22:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:22:31,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:22:31,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426507390] [2024-12-02 06:22:31,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426507390] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:22:31,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:22:31,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:22:31,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078062770] [2024-12-02 06:22:31,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:22:31,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:22:31,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:22:31,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:22:31,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:22:31,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 321 [2024-12-02 06:22:31,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 362 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2024-12-02 06:22:31,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:22:31,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 321 [2024-12-02 06:22:31,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:22:45,535 INFO L124 PetriNetUnfolderBase]: 28683/150105 cut-off events. [2024-12-02 06:22:45,535 INFO L125 PetriNetUnfolderBase]: For 26880/32189 co-relation queries the response was YES. [2024-12-02 06:22:46,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226939 conditions, 150105 events. 28683/150105 cut-off events. For 26880/32189 co-relation queries the response was YES. Maximal size of possible extension queue 3736. Compared 2655516 event pairs, 18219 based on Foata normal form. 110/133154 useless extension candidates. Maximal degree in co-relation 226668. Up to 32064 conditions per place. [2024-12-02 06:22:48,241 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 68 selfloop transitions, 8 changer transitions 0/392 dead transitions. [2024-12-02 06:22:48,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 392 transitions, 1454 flow [2024-12-02 06:22:48,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:22:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:22:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 813 transitions. [2024-12-02 06:22:48,243 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8442367601246106 [2024-12-02 06:22:48,243 INFO L175 Difference]: Start difference. First operand has 307 places, 362 transitions, 1234 flow. Second operand 3 states and 813 transitions. [2024-12-02 06:22:48,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 392 transitions, 1454 flow [2024-12-02 06:22:48,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 392 transitions, 1374 flow, removed 18 selfloop flow, removed 2 redundant places. [2024-12-02 06:22:48,397 INFO L231 Difference]: Finished difference. Result has 309 places, 368 transitions, 1220 flow [2024-12-02 06:22:48,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1220, PETRI_PLACES=309, PETRI_TRANSITIONS=368} [2024-12-02 06:22:48,398 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 17 predicate places. [2024-12-02 06:22:48,398 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 368 transitions, 1220 flow [2024-12-02 06:22:48,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2024-12-02 06:22:48,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:22:48,399 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:22:48,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:22:48,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-12-02 06:22:48,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:22:48,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1856075497, now seen corresponding path program 1 times [2024-12-02 06:22:48,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:22:48,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145287595] [2024-12-02 06:22:48,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:22:48,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:22:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:22:48,422 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:22:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:22:48,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 06:22:48,445 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:22:48,445 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-12-02 06:22:48,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-12-02 06:22:48,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-12-02 06:22:48,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-12-02 06:22:48,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-12-02 06:22:48,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-12-02 06:22:48,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-12-02 06:22:48,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:22:48,447 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:22:48,448 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 06:22:48,448 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 06:22:48,490 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 06:22:48,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 386 places, 427 transitions, 881 flow [2024-12-02 06:22:48,581 INFO L124 PetriNetUnfolderBase]: 75/735 cut-off events. [2024-12-02 06:22:48,581 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-12-02 06:22:48,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 735 events. 75/735 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3369 event pairs, 1 based on Foata normal form. 0/609 useless extension candidates. Maximal degree in co-relation 495. Up to 16 conditions per place. [2024-12-02 06:22:48,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 386 places, 427 transitions, 881 flow [2024-12-02 06:22:48,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 386 places, 427 transitions, 881 flow [2024-12-02 06:22:48,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:22:48,592 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;@66233f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:22:48,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-12-02 06:22:48,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 06:22:48,595 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-12-02 06:22:48,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 06:22:48,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:22:48,595 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:22:48,595 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-12-02 06:22:48,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:22:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1334267985, now seen corresponding path program 1 times [2024-12-02 06:22:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:22:48,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144131164] [2024-12-02 06:22:48,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:22:48,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:22:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:22:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:22:48,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:22:48,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144131164] [2024-12-02 06:22:48,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144131164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:22:48,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:22:48,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:22:48,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928693009] [2024-12-02 06:22:48,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:22:48,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:22:48,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:22:48,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:22:48,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:22:48,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 427 [2024-12-02 06:22:48,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 427 transitions, 881 flow. Second operand has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 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) [2024-12-02 06:22:48,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:22:48,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 427 [2024-12-02 06:22:48,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:23:18,608 INFO L124 PetriNetUnfolderBase]: 70318/247301 cut-off events. [2024-12-02 06:23:18,609 INFO L125 PetriNetUnfolderBase]: For 9409/9409 co-relation queries the response was YES. [2024-12-02 06:23:19,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345647 conditions, 247301 events. 70318/247301 cut-off events. For 9409/9409 co-relation queries the response was YES. Maximal size of possible extension queue 5395. Compared 4110479 event pairs, 45301 based on Foata normal form. 57225/282579 useless extension candidates. Maximal degree in co-relation 22332. Up to 97023 conditions per place. [2024-12-02 06:23:20,462 INFO L140 encePairwiseOnDemand]: 382/427 looper letters, 65 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2024-12-02 06:23:20,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 396 transitions, 953 flow [2024-12-02 06:23:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:23:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:23:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2024-12-02 06:23:20,471 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8688524590163934 [2024-12-02 06:23:20,472 INFO L175 Difference]: Start difference. First operand has 386 places, 427 transitions, 881 flow. Second operand 3 states and 1113 transitions. [2024-12-02 06:23:20,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 396 transitions, 953 flow [2024-12-02 06:23:20,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 396 transitions, 953 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 06:23:20,485 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 805 flow [2024-12-02 06:23:20,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=427, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=387, PETRI_TRANSITIONS=384} [2024-12-02 06:23:20,488 INFO L279 CegarLoopForPetriNet]: 386 programPoint places, 1 predicate places. [2024-12-02 06:23:20,488 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 805 flow [2024-12-02 06:23:20,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 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) [2024-12-02 06:23:20,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:23:20,490 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:23:20,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:23:20,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-12-02 06:23:20,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:23:20,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1201767991, now seen corresponding path program 1 times [2024-12-02 06:23:20,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:23:20,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290064360] [2024-12-02 06:23:20,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:23:20,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:23:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:23:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:23:20,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:23:20,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290064360] [2024-12-02 06:23:20,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290064360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:23:20,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:23:20,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:23:20,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269112420] [2024-12-02 06:23:20,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:23:20,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:23:20,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:23:20,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:23:20,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:23:21,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 427 [2024-12-02 06:23:21,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 384 transitions, 805 flow. Second operand has 6 states, 6 states have (on average 319.5) internal successors, (1917), 6 states have internal predecessors, (1917), 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) [2024-12-02 06:23:21,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:23:21,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 427 [2024-12-02 06:23:21,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:24:01,161 INFO L124 PetriNetUnfolderBase]: 138715/345110 cut-off events. [2024-12-02 06:24:01,162 INFO L125 PetriNetUnfolderBase]: For 6525/6525 co-relation queries the response was YES. [2024-12-02 06:24:02,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541172 conditions, 345110 events. 138715/345110 cut-off events. For 6525/6525 co-relation queries the response was YES. Maximal size of possible extension queue 8123. Compared 5202687 event pairs, 13990 based on Foata normal form. 0/323018 useless extension candidates. Maximal degree in co-relation 198857. Up to 139448 conditions per place. [2024-12-02 06:24:03,804 INFO L140 encePairwiseOnDemand]: 421/427 looper letters, 204 selfloop transitions, 6 changer transitions 0/527 dead transitions. [2024-12-02 06:24:03,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 527 transitions, 1511 flow [2024-12-02 06:24:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:24:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:24:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2118 transitions. [2024-12-02 06:24:03,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8266978922716628 [2024-12-02 06:24:03,811 INFO L175 Difference]: Start difference. First operand has 387 places, 384 transitions, 805 flow. Second operand 6 states and 2118 transitions. [2024-12-02 06:24:03,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 527 transitions, 1511 flow [2024-12-02 06:24:03,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 527 transitions, 1509 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 06:24:03,834 INFO L231 Difference]: Finished difference. Result has 390 places, 383 transitions, 813 flow [2024-12-02 06:24:03,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=427, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=813, PETRI_PLACES=390, PETRI_TRANSITIONS=383} [2024-12-02 06:24:03,836 INFO L279 CegarLoopForPetriNet]: 386 programPoint places, 4 predicate places. [2024-12-02 06:24:03,837 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 383 transitions, 813 flow [2024-12-02 06:24:03,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 319.5) internal successors, (1917), 6 states have internal predecessors, (1917), 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) [2024-12-02 06:24:03,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:24:03,838 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:24:03,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:24:03,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-12-02 06:24:03,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:24:03,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1368890690, now seen corresponding path program 1 times [2024-12-02 06:24:03,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:24:03,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935770471] [2024-12-02 06:24:03,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:24:03,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:24:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:24:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:24:03,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:24:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935770471] [2024-12-02 06:24:03,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935770471] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:24:03,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:24:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:24:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131552810] [2024-12-02 06:24:03,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:24:03,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:24:03,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:24:03,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:24:03,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:24:03,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 427 [2024-12-02 06:24:03,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 383 transitions, 813 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-12-02 06:24:03,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:24:03,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 427 [2024-12-02 06:24:03,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:25:07,274 INFO L124 PetriNetUnfolderBase]: 156095/551295 cut-off events. [2024-12-02 06:25:07,275 INFO L125 PetriNetUnfolderBase]: For 6706/6706 co-relation queries the response was YES. [2024-12-02 06:25:09,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768372 conditions, 551295 events. 156095/551295 cut-off events. For 6706/6706 co-relation queries the response was YES. Maximal size of possible extension queue 11369. Compared 10043486 event pairs, 55944 based on Foata normal form. 0/494579 useless extension candidates. Maximal degree in co-relation 726234. Up to 124186 conditions per place. [2024-12-02 06:25:11,471 INFO L140 encePairwiseOnDemand]: 417/427 looper letters, 105 selfloop transitions, 7 changer transitions 0/437 dead transitions. [2024-12-02 06:25:11,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 437 transitions, 1166 flow [2024-12-02 06:25:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:25:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:25:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2024-12-02 06:25:11,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.853239656518345 [2024-12-02 06:25:11,473 INFO L175 Difference]: Start difference. First operand has 390 places, 383 transitions, 813 flow. Second operand 3 states and 1093 transitions. [2024-12-02 06:25:11,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 437 transitions, 1166 flow [2024-12-02 06:25:11,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 437 transitions, 1154 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 06:25:11,482 INFO L231 Difference]: Finished difference. Result has 389 places, 390 transitions, 863 flow [2024-12-02 06:25:11,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=427, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=389, PETRI_TRANSITIONS=390} [2024-12-02 06:25:11,484 INFO L279 CegarLoopForPetriNet]: 386 programPoint places, 3 predicate places. [2024-12-02 06:25:11,484 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 390 transitions, 863 flow [2024-12-02 06:25:11,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2024-12-02 06:25:11,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:25:11,485 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:25:11,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:25:11,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-12-02 06:25:11,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:25:11,486 INFO L85 PathProgramCache]: Analyzing trace with hash 486614366, now seen corresponding path program 1 times [2024-12-02 06:25:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:25:11,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480806977] [2024-12-02 06:25:11,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:25:11,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:25:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:25:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:25:11,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:25:11,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480806977] [2024-12-02 06:25:11,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480806977] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:25:11,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:25:11,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:25:11,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201674727] [2024-12-02 06:25:11,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:25:11,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:25:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:25:11,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:25:11,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:25:11,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 427 [2024-12-02 06:25:11,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 390 transitions, 863 flow. Second operand has 5 states, 5 states have (on average 329.8) internal successors, (1649), 5 states have internal predecessors, (1649), 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) [2024-12-02 06:25:11,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:25:11,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 427 [2024-12-02 06:25:11,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:26:22,440 INFO L124 PetriNetUnfolderBase]: 171746/617699 cut-off events. [2024-12-02 06:26:22,440 INFO L125 PetriNetUnfolderBase]: For 19566/19650 co-relation queries the response was YES. [2024-12-02 06:26:25,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881001 conditions, 617699 events. 171746/617699 cut-off events. For 19566/19650 co-relation queries the response was YES. Maximal size of possible extension queue 13240. Compared 11571155 event pairs, 70060 based on Foata normal form. 13/558567 useless extension candidates. Maximal degree in co-relation 199691. Up to 239825 conditions per place. [2024-12-02 06:26:27,133 INFO L140 encePairwiseOnDemand]: 422/427 looper letters, 116 selfloop transitions, 5 changer transitions 0/454 dead transitions. [2024-12-02 06:26:27,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 454 transitions, 1235 flow [2024-12-02 06:26:27,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:26:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:26:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2090 transitions. [2024-12-02 06:26:27,136 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8157689305230289 [2024-12-02 06:26:27,136 INFO L175 Difference]: Start difference. First operand has 389 places, 390 transitions, 863 flow. Second operand 6 states and 2090 transitions. [2024-12-02 06:26:27,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 454 transitions, 1235 flow [2024-12-02 06:26:27,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 454 transitions, 1221 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:26:27,583 INFO L231 Difference]: Finished difference. Result has 395 places, 393 transitions, 881 flow [2024-12-02 06:26:27,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=427, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=881, PETRI_PLACES=395, PETRI_TRANSITIONS=393} [2024-12-02 06:26:27,584 INFO L279 CegarLoopForPetriNet]: 386 programPoint places, 9 predicate places. [2024-12-02 06:26:27,584 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 393 transitions, 881 flow [2024-12-02 06:26:27,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 329.8) internal successors, (1649), 5 states have internal predecessors, (1649), 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) [2024-12-02 06:26:27,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:26:27,585 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:26:27,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:26:27,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-12-02 06:26:27,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:26:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash 518050146, now seen corresponding path program 1 times [2024-12-02 06:26:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:26:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308979592] [2024-12-02 06:26:27,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:26:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:26:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:26:27,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:26:27,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:26:27,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308979592] [2024-12-02 06:26:27,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308979592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:26:27,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:26:27,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:26:27,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799714907] [2024-12-02 06:26:27,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:26:27,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:26:27,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:26:27,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:26:27,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:26:27,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 427 [2024-12-02 06:26:27,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 393 transitions, 881 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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) [2024-12-02 06:26:27,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:26:27,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 427 [2024-12-02 06:26:27,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand