./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --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_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB --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 0f41c28130c65bb66e6565b71877e71077746007ac43c6aef3ce3b863878a53a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:01:22,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:01:23,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:01:23,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:01:23,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:01:23,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:01:23,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:01:23,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:01:23,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:01:23,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:01:23,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:01:23,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:01:23,135 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:01:23,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:01:23,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:01:23,137 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:01:23,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:01:23,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:01:23,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:01:23,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:01:23,138 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_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0f41c28130c65bb66e6565b71877e71077746007ac43c6aef3ce3b863878a53a [2024-11-28 04:01:23,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:01:23,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:01:23,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:01:23,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:01:23,467 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:01:23,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-11-28 04:01:26,686 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/data/0872d7f5c/0ec9787bd77047609aa47d78303d936c/FLAGca2157fbb [2024-11-28 04:01:26,994 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:01:26,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-11-28 04:01:27,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/data/0872d7f5c/0ec9787bd77047609aa47d78303d936c/FLAGca2157fbb [2024-11-28 04:01:27,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/data/0872d7f5c/0ec9787bd77047609aa47d78303d936c [2024-11-28 04:01:27,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:01:27,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:01:27,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:01:27,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:01:27,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:01:27,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234b2c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27, skipping insertion in model container [2024-11-28 04:01:27,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:01:27,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:01:27,305 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:01:27,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:01:27,355 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:01:27,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27 WrapperNode [2024-11-28 04:01:27,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:01:27,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:01:27,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:01:27,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:01:27,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,408 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 298 [2024-11-28 04:01:27,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:01:27,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:01:27,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:01:27,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:01:27,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,444 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:01:27,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:01:27,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:01:27,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:01:27,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (1/1) ... [2024-11-28 04:01:27,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:01:27,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:27,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:01:27,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36035b27-a0bb-4d6a-a33c-07f9ab2d21d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:01:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:01:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 04:01:27,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 04:01:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 04:01:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 04:01:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 04:01:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 04:01:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-28 04:01:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-28 04:01:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:01:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-28 04:01:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-28 04:01:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-28 04:01:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-28 04:01:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:01:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:01:27,548 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:01:27,725 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:01:27,727 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:01:28,268 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:01:28,268 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:01:28,313 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:01:28,313 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:01:28,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:01:28 BoogieIcfgContainer [2024-11-28 04:01:28,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:01:28,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:01:28,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:01:28,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:01:28,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:01:27" (1/3) ... [2024-11-28 04:01:28,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1beda8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:01:28, skipping insertion in model container [2024-11-28 04:01:28,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:01:27" (2/3) ... [2024-11-28 04:01:28,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1beda8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:01:28, skipping insertion in model container [2024-11-28 04:01:28,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:01:28" (3/3) ... [2024-11-28 04:01:28,326 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2024-11-28 04:01:28,346 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:01:28,349 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-6.wvr.c that has 7 procedures, 315 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2024-11-28 04:01:28,350 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:01:28,566 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-28 04:01:28,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 327 transitions, 696 flow [2024-11-28 04:01:28,870 INFO L124 PetriNetUnfolderBase]: 13/321 cut-off events. [2024-11-28 04:01:28,872 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:01:28,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 321 events. 13/321 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 590 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2024-11-28 04:01:28,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 327 transitions, 696 flow [2024-11-28 04:01:28,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 304 transitions, 641 flow [2024-11-28 04:01:28,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:01:28,936 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;@2340d0bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:01:28,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-28 04:01:28,949 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:01:28,950 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-11-28 04:01:28,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:01:28,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:28,951 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] [2024-11-28 04:01:28,951 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:01:28,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash 608831980, now seen corresponding path program 1 times [2024-11-28 04:01:28,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:28,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448698083] [2024-11-28 04:01:28,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:28,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:29,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:29,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448698083] [2024-11-28 04:01:29,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448698083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:29,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:29,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333075261] [2024-11-28 04:01:29,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:29,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:29,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:29,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:29,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:29,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-28 04:01:29,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 304 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:29,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:29,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-28 04:01:29,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:37,959 INFO L124 PetriNetUnfolderBase]: 7855/33572 cut-off events. [2024-11-28 04:01:37,959 INFO L125 PetriNetUnfolderBase]: For 1695/1695 co-relation queries the response was YES. [2024-11-28 04:01:38,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44149 conditions, 33572 events. 7855/33572 cut-off events. For 1695/1695 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 452288 event pairs, 6806 based on Foata normal form. 2909/31360 useless extension candidates. Maximal degree in co-relation 43186. Up to 8993 conditions per place. [2024-11-28 04:01:38,630 INFO L140 encePairwiseOnDemand]: 317/327 looper letters, 28 selfloop transitions, 2 changer transitions 1/296 dead transitions. [2024-11-28 04:01:38,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 296 transitions, 685 flow [2024-11-28 04:01:38,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:38,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2024-11-28 04:01:38,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.910295616717635 [2024-11-28 04:01:38,658 INFO L175 Difference]: Start difference. First operand has 311 places, 304 transitions, 641 flow. Second operand 3 states and 893 transitions. [2024-11-28 04:01:38,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 296 transitions, 685 flow [2024-11-28 04:01:38,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 296 transitions, 664 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-28 04:01:38,687 INFO L231 Difference]: Finished difference. Result has 301 places, 295 transitions, 606 flow [2024-11-28 04:01:38,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=301, PETRI_TRANSITIONS=295} [2024-11-28 04:01:38,698 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -10 predicate places. [2024-11-28 04:01:38,699 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 295 transitions, 606 flow [2024-11-28 04:01:38,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:38,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:38,700 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] [2024-11-28 04:01:38,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:01:38,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:01:38,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1015340394, now seen corresponding path program 1 times [2024-11-28 04:01:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016600675] [2024-11-28 04:01:38,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:38,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:38,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:38,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016600675] [2024-11-28 04:01:38,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016600675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:38,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:38,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:38,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887175716] [2024-11-28 04:01:38,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:38,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:38,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:38,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:38,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:38,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-28 04:01:38,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 295 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:38,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:38,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-28 04:01:38,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:45,258 INFO L124 PetriNetUnfolderBase]: 8501/35560 cut-off events. [2024-11-28 04:01:45,258 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-28 04:01:45,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46320 conditions, 35560 events. 8501/35560 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 481935 event pairs, 7398 based on Foata normal form. 0/30126 useless extension candidates. Maximal degree in co-relation 46282. Up to 9745 conditions per place. [2024-11-28 04:01:45,997 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/294 dead transitions. [2024-11-28 04:01:45,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 294 transitions, 664 flow [2024-11-28 04:01:45,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-28 04:01:46,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-28 04:01:46,002 INFO L175 Difference]: Start difference. First operand has 301 places, 295 transitions, 606 flow. Second operand 3 states and 886 transitions. [2024-11-28 04:01:46,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 294 transitions, 664 flow [2024-11-28 04:01:46,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 294 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:46,015 INFO L231 Difference]: Finished difference. Result has 299 places, 294 transitions, 604 flow [2024-11-28 04:01:46,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=299, PETRI_TRANSITIONS=294} [2024-11-28 04:01:46,020 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -12 predicate places. [2024-11-28 04:01:46,020 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 294 transitions, 604 flow [2024-11-28 04:01:46,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:46,021 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:46,021 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] [2024-11-28 04:01:46,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:01:46,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:01:46,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:46,022 INFO L85 PathProgramCache]: Analyzing trace with hash -157440509, now seen corresponding path program 1 times [2024-11-28 04:01:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:46,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718138385] [2024-11-28 04:01:46,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:46,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:46,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718138385] [2024-11-28 04:01:46,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718138385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:46,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:46,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:46,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232626707] [2024-11-28 04:01:46,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:46,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:46,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:46,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:46,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:46,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-28 04:01:46,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 294 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:46,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:46,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-28 04:01:46,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:52,716 INFO L124 PetriNetUnfolderBase]: 8623/34961 cut-off events. [2024-11-28 04:01:52,716 INFO L125 PetriNetUnfolderBase]: For 579/579 co-relation queries the response was YES. [2024-11-28 04:01:53,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45915 conditions, 34961 events. 8623/34961 cut-off events. For 579/579 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 469021 event pairs, 7550 based on Foata normal form. 0/29548 useless extension candidates. Maximal degree in co-relation 45869. Up to 9945 conditions per place. [2024-11-28 04:01:53,269 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2024-11-28 04:01:53,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 293 transitions, 662 flow [2024-11-28 04:01:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:53,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-28 04:01:53,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-28 04:01:53,277 INFO L175 Difference]: Start difference. First operand has 299 places, 294 transitions, 604 flow. Second operand 3 states and 886 transitions. [2024-11-28 04:01:53,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 293 transitions, 662 flow [2024-11-28 04:01:53,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:53,283 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 602 flow [2024-11-28 04:01:53,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-11-28 04:01:53,284 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -13 predicate places. [2024-11-28 04:01:53,284 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 602 flow [2024-11-28 04:01:53,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:53,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:53,285 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] [2024-11-28 04:01:53,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:01:53,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:01:53,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1133754814, now seen corresponding path program 1 times [2024-11-28 04:01:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:53,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247057147] [2024-11-28 04:01:53,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:53,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:53,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:53,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247057147] [2024-11-28 04:01:53,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247057147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:53,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:53,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:53,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728257666] [2024-11-28 04:01:53,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:53,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:53,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:53,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:53,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:53,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-28 04:01:53,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 602 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:53,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:53,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-28 04:01:53,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:59,218 INFO L124 PetriNetUnfolderBase]: 8515/32260 cut-off events. [2024-11-28 04:01:59,218 INFO L125 PetriNetUnfolderBase]: For 597/597 co-relation queries the response was YES. [2024-11-28 04:01:59,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43196 conditions, 32260 events. 8515/32260 cut-off events. For 597/597 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 418837 event pairs, 7550 based on Foata normal form. 0/27159 useless extension candidates. Maximal degree in co-relation 43142. Up to 9945 conditions per place. [2024-11-28 04:01:59,613 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2024-11-28 04:01:59,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 292 transitions, 660 flow [2024-11-28 04:01:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-28 04:01:59,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-28 04:01:59,616 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 602 flow. Second operand 3 states and 886 transitions. [2024-11-28 04:01:59,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 292 transitions, 660 flow [2024-11-28 04:01:59,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 292 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:59,622 INFO L231 Difference]: Finished difference. Result has 297 places, 292 transitions, 600 flow [2024-11-28 04:01:59,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=297, PETRI_TRANSITIONS=292} [2024-11-28 04:01:59,624 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -14 predicate places. [2024-11-28 04:01:59,624 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 292 transitions, 600 flow [2024-11-28 04:01:59,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:59,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:59,625 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] [2024-11-28 04:01:59,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:01:59,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:01:59,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:59,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2019753792, now seen corresponding path program 1 times [2024-11-28 04:01:59,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:59,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980709578] [2024-11-28 04:01:59,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:59,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:59,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980709578] [2024-11-28 04:01:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980709578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:59,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:59,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:59,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384589793] [2024-11-28 04:01:59,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:59,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:59,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:59,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:59,740 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-28 04:01:59,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 292 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:59,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:59,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-28 04:01:59,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:02:04,428 INFO L124 PetriNetUnfolderBase]: 8177/27457 cut-off events. [2024-11-28 04:02:04,428 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2024-11-28 04:02:04,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38139 conditions, 27457 events. 8177/27457 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 335941 event pairs, 7398 based on Foata normal form. 0/23073 useless extension candidates. Maximal degree in co-relation 38077. Up to 9745 conditions per place. [2024-11-28 04:02:04,876 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2024-11-28 04:02:04,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 291 transitions, 658 flow [2024-11-28 04:02:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:02:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:02:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-28 04:02:04,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-28 04:02:04,880 INFO L175 Difference]: Start difference. First operand has 297 places, 292 transitions, 600 flow. Second operand 3 states and 886 transitions. [2024-11-28 04:02:04,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 291 transitions, 658 flow [2024-11-28 04:02:04,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 291 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:02:04,888 INFO L231 Difference]: Finished difference. Result has 296 places, 291 transitions, 598 flow [2024-11-28 04:02:04,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=296, PETRI_TRANSITIONS=291} [2024-11-28 04:02:04,889 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -15 predicate places. [2024-11-28 04:02:04,890 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 291 transitions, 598 flow [2024-11-28 04:02:04,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:04,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:02:04,891 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, 1, 1] [2024-11-28 04:02:04,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:02:04,891 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:02:04,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:04,892 INFO L85 PathProgramCache]: Analyzing trace with hash 969486859, now seen corresponding path program 1 times [2024-11-28 04:02:04,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:04,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422515079] [2024-11-28 04:02:04,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:04,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:04,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:04,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422515079] [2024-11-28 04:02:04,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422515079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:04,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:04,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:02:04,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005840900] [2024-11-28 04:02:04,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:04,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:02:04,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:04,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:02:04,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:02:04,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-28 04:02:04,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 291 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:04,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:02:04,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-28 04:02:04,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:02:10,751 INFO L124 PetriNetUnfolderBase]: 7863/33824 cut-off events. [2024-11-28 04:02:10,751 INFO L125 PetriNetUnfolderBase]: For 605/605 co-relation queries the response was YES. [2024-11-28 04:02:11,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43430 conditions, 33824 events. 7863/33824 cut-off events. For 605/605 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 452548 event pairs, 6806 based on Foata normal form. 0/28685 useless extension candidates. Maximal degree in co-relation 43360. Up to 8993 conditions per place. [2024-11-28 04:02:11,228 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2024-11-28 04:02:11,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 290 transitions, 656 flow [2024-11-28 04:02:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:02:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:02:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-28 04:02:11,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-28 04:02:11,231 INFO L175 Difference]: Start difference. First operand has 296 places, 291 transitions, 598 flow. Second operand 3 states and 886 transitions. [2024-11-28 04:02:11,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 290 transitions, 656 flow [2024-11-28 04:02:11,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 290 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:02:11,239 INFO L231 Difference]: Finished difference. Result has 295 places, 290 transitions, 596 flow [2024-11-28 04:02:11,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=295, PETRI_TRANSITIONS=290} [2024-11-28 04:02:11,241 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -16 predicate places. [2024-11-28 04:02:11,241 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 290 transitions, 596 flow [2024-11-28 04:02:11,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:11,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:02:11,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:11,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:02:11,242 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:02:11,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1707781637, now seen corresponding path program 1 times [2024-11-28 04:02:11,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:11,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733910439] [2024-11-28 04:02:11,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:11,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:11,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:11,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733910439] [2024-11-28 04:02:11,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733910439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:11,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:11,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:02:11,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275922746] [2024-11-28 04:02:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:11,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:02:11,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:11,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:02:11,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:02:11,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 327 [2024-11-28 04:02:11,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 290 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:11,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:02:11,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 327 [2024-11-28 04:02:11,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:02:17,767 INFO L124 PetriNetUnfolderBase]: 11593/41062 cut-off events. [2024-11-28 04:02:17,768 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-28 04:02:18,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56411 conditions, 41062 events. 11593/41062 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 553783 event pairs, 8021 based on Foata normal form. 0/34963 useless extension candidates. Maximal degree in co-relation 56333. Up to 10570 conditions per place. [2024-11-28 04:02:18,299 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 42 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2024-11-28 04:02:18,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 304 transitions, 718 flow [2024-11-28 04:02:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:02:18,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:02:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2024-11-28 04:02:18,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9235474006116208 [2024-11-28 04:02:18,303 INFO L175 Difference]: Start difference. First operand has 295 places, 290 transitions, 596 flow. Second operand 3 states and 906 transitions. [2024-11-28 04:02:18,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 304 transitions, 718 flow [2024-11-28 04:02:18,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 304 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:02:18,310 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 594 flow [2024-11-28 04:02:18,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=594, PETRI_PLACES=294, PETRI_TRANSITIONS=289} [2024-11-28 04:02:18,311 INFO L279 CegarLoopForPetriNet]: 311 programPoint places, -17 predicate places. [2024-11-28 04:02:18,312 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 594 flow [2024-11-28 04:02:18,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:18,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:02:18,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:18,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:02:18,313 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:02:18,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:18,314 INFO L85 PathProgramCache]: Analyzing trace with hash -61215234, now seen corresponding path program 1 times [2024-11-28 04:02:18,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:18,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995971002] [2024-11-28 04:02:18,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:18,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:18,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:18,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995971002] [2024-11-28 04:02:18,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995971002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:18,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:18,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:02:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398554390] [2024-11-28 04:02:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:18,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:02:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:18,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:02:18,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:02:18,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 327 [2024-11-28 04:02:18,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 289 transitions, 594 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:18,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:02:18,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 327 [2024-11-28 04:02:18,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand