./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_2t.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_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/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_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/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_3e041473-e791-4acd-9519-2b4db11eec05/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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:41:16,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:41:16,373 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 02:41:16,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:41:16,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:41:16,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:41:16,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:41:16,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:41:16,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:41:16,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:41:16,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:41:16,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:41:16,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:41:16,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:41:16,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:41:16,425 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:41:16,426 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:41:16,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:16,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:16,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:16,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:41:16,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:16,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:16,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:16,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:41:16,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:41:16,427 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:41:16,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:41:16,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:41:16,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:41:16,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:41:16,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:41:16,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:41:16,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:41:16,430 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_3e041473-e791-4acd-9519-2b4db11eec05/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 -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2024-11-28 02:41:16,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:41:16,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:41:16,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:41:16,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:41:16,864 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:41:16,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-divine/barrier_2t.i [2024-11-28 02:41:20,438 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/data/0337da1bb/2318980a1c7d4752ac94a9ab5d850ce3/FLAG4ecc23a34 [2024-11-28 02:41:20,867 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:41:20,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/sv-benchmarks/c/pthread-divine/barrier_2t.i [2024-11-28 02:41:20,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/data/0337da1bb/2318980a1c7d4752ac94a9ab5d850ce3/FLAG4ecc23a34 [2024-11-28 02:41:21,026 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/data/0337da1bb/2318980a1c7d4752ac94a9ab5d850ce3 [2024-11-28 02:41:21,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:41:21,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:41:21,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:21,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:41:21,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:41:21,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ba7df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21, skipping insertion in model container [2024-11-28 02:41:21,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:41:21,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:21,571 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:41:21,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:21,733 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:41:21,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21 WrapperNode [2024-11-28 02:41:21,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:21,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:21,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:41:21,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:41:21,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,878 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1034 [2024-11-28 02:41:21,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:21,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:41:21,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:41:21,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:41:21,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,972 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:21,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:22,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:41:22,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:41:22,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:41:22,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:41:22,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (1/1) ... [2024-11-28 02:41:22,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:22,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:22,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:22,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e041473-e791-4acd-9519-2b4db11eec05/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:41:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:41:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:41:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 02:41:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-28 02:41:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 02:41:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:41:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:41:22,103 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 02:41:22,395 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:41:22,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:41:24,885 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:41:24,886 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:41:25,051 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:41:25,051 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-28 02:41:25,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:25 BoogieIcfgContainer [2024-11-28 02:41:25,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:41:25,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:41:25,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:41:25,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:41:25,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:41:21" (1/3) ... [2024-11-28 02:41:25,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8d1ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:25, skipping insertion in model container [2024-11-28 02:41:25,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:21" (2/3) ... [2024-11-28 02:41:25,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8d1ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:25, skipping insertion in model container [2024-11-28 02:41:25,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:25" (3/3) ... [2024-11-28 02:41:25,069 INFO L128 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2024-11-28 02:41:25,089 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:41:25,091 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG barrier_2t.i that has 2 procedures, 1112 locations, 1 initial locations, 20 loop locations, and 99 error locations. [2024-11-28 02:41:25,092 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:41:25,456 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 02:41:25,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1205 transitions, 2417 flow [2024-11-28 02:41:27,239 INFO L124 PetriNetUnfolderBase]: 141/1783 cut-off events. [2024-11-28 02:41:27,242 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 02:41:27,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 1783 events. 141/1783 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7053 event pairs, 0 based on Foata normal form. 0/1492 useless extension candidates. Maximal degree in co-relation 1084. Up to 4 conditions per place. [2024-11-28 02:41:27,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1205 transitions, 2417 flow [2024-11-28 02:41:27,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1205 transitions, 2417 flow [2024-11-28 02:41:27,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:41:27,383 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;@6796c5a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:41:27,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-11-28 02:41:27,395 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:41:27,395 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2024-11-28 02:41:27,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:41:27,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:41:27,396 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] [2024-11-28 02:41:27,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-28 02:41:27,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2094606448, now seen corresponding path program 1 times [2024-11-28 02:41:27,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:27,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326418412] [2024-11-28 02:41:27,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:27,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:28,893 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 02:41:28,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:28,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326418412] [2024-11-28 02:41:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326418412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:28,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:28,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:28,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816298523] [2024-11-28 02:41:28,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:28,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:41:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:28,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:41:28,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:41:32,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1205 [2024-11-28 02:41:32,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1115 places, 1205 transitions, 2417 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 02:41:32,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:41:32,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1205 [2024-11-28 02:41:32,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:41:55,732 INFO L124 PetriNetUnfolderBase]: 18612/86406 cut-off events. [2024-11-28 02:41:55,733 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-28 02:41:55,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119720 conditions, 86406 events. 18612/86406 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 1058046 event pairs, 16093 based on Foata normal form. 8357/84252 useless extension candidates. Maximal degree in co-relation 118907. Up to 33304 conditions per place. [2024-11-28 02:41:56,315 INFO L140 encePairwiseOnDemand]: 1133/1205 looper letters, 276 selfloop transitions, 5 changer transitions 3/1115 dead transitions. [2024-11-28 02:41:56,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 1115 transitions, 2799 flow [2024-11-28 02:41:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:41:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:41:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5490 transitions. [2024-11-28 02:41:56,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7593360995850622 [2024-11-28 02:41:56,367 INFO L175 Difference]: Start difference. First operand has 1115 places, 1205 transitions, 2417 flow. Second operand 6 states and 5490 transitions. [2024-11-28 02:41:56,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1096 places, 1115 transitions, 2799 flow [2024-11-28 02:41:56,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1096 places, 1115 transitions, 2799 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:41:56,414 INFO L231 Difference]: Finished difference. Result has 1096 places, 1112 transitions, 2241 flow [2024-11-28 02:41:56,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1205, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=1091, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2241, PETRI_PLACES=1096, PETRI_TRANSITIONS=1112} [2024-11-28 02:41:56,428 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -19 predicate places. [2024-11-28 02:41:56,431 INFO L471 AbstractCegarLoop]: Abstraction has has 1096 places, 1112 transitions, 2241 flow [2024-11-28 02:41:56,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 02:41:56,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:41:56,436 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 02:41:56,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:41:56,437 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-28 02:41:56,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash 100682628, now seen corresponding path program 1 times [2024-11-28 02:41:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:56,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911870688] [2024-11-28 02:41:56,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:56,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:56,574 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 02:41:56,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:56,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911870688] [2024-11-28 02:41:56,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911870688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:56,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:56,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:56,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107117843] [2024-11-28 02:41:56,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:56,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:56,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:56,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:56,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1103 out of 1205 [2024-11-28 02:41:56,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 1112 transitions, 2241 flow. Second operand has 3 states, 3 states have (on average 1104.3333333333333) internal successors, (3313), 3 states have internal predecessors, (3313), 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 02:41:56,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:41:56,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1103 of 1205 [2024-11-28 02:41:56,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:42:00,443 INFO L124 PetriNetUnfolderBase]: 563/9912 cut-off events. [2024-11-28 02:42:00,443 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 02:42:00,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10537 conditions, 9912 events. 563/9912 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 90486 event pairs, 210 based on Foata normal form. 1/8500 useless extension candidates. Maximal degree in co-relation 10453. Up to 608 conditions per place. [2024-11-28 02:42:00,533 INFO L140 encePairwiseOnDemand]: 1202/1205 looper letters, 35 selfloop transitions, 2 changer transitions 0/1113 dead transitions. [2024-11-28 02:42:00,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1095 places, 1113 transitions, 2317 flow [2024-11-28 02:42:00,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:42:00,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:42:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3347 transitions. [2024-11-28 02:42:00,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9258644536652836 [2024-11-28 02:42:00,543 INFO L175 Difference]: Start difference. First operand has 1096 places, 1112 transitions, 2241 flow. Second operand 3 states and 3347 transitions. [2024-11-28 02:42:00,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1095 places, 1113 transitions, 2317 flow [2024-11-28 02:42:00,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1090 places, 1113 transitions, 2307 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:42:00,568 INFO L231 Difference]: Finished difference. Result has 1091 places, 1113 transitions, 2243 flow [2024-11-28 02:42:00,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1205, PETRI_DIFFERENCE_MINUEND_FLOW=2231, PETRI_DIFFERENCE_MINUEND_PLACES=1088, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2243, PETRI_PLACES=1091, PETRI_TRANSITIONS=1113} [2024-11-28 02:42:00,574 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -24 predicate places. [2024-11-28 02:42:00,575 INFO L471 AbstractCegarLoop]: Abstraction has has 1091 places, 1113 transitions, 2243 flow [2024-11-28 02:42:00,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1104.3333333333333) internal successors, (3313), 3 states have internal predecessors, (3313), 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 02:42:00,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:42:00,577 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] [2024-11-28 02:42:00,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:42:00,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-28 02:42:00,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 469196821, now seen corresponding path program 1 times [2024-11-28 02:42:00,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:00,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539738569] [2024-11-28 02:42:00,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:00,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:01,330 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 02:42:01,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:01,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539738569] [2024-11-28 02:42:01,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539738569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:42:01,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:42:01,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:42:01,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315260328] [2024-11-28 02:42:01,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:42:01,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:42:01,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:01,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:42:01,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:42:04,399 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1205 [2024-11-28 02:42:04,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1091 places, 1113 transitions, 2243 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 02:42:04,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:42:04,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1205 [2024-11-28 02:42:04,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:42:26,647 INFO L124 PetriNetUnfolderBase]: 18612/86430 cut-off events. [2024-11-28 02:42:26,647 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-28 02:42:26,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119759 conditions, 86430 events. 18612/86430 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 1057929 event pairs, 16093 based on Foata normal form. 0/75921 useless extension candidates. Maximal degree in co-relation 119680. Up to 33307 conditions per place. [2024-11-28 02:42:26,922 INFO L140 encePairwiseOnDemand]: 1199/1205 looper letters, 277 selfloop transitions, 5 changer transitions 0/1112 dead transitions. [2024-11-28 02:42:26,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1095 places, 1112 transitions, 2805 flow [2024-11-28 02:42:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:42:26,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:42:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5424 transitions. [2024-11-28 02:42:26,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.750207468879668 [2024-11-28 02:42:26,937 INFO L175 Difference]: Start difference. First operand has 1091 places, 1113 transitions, 2243 flow. Second operand 6 states and 5424 transitions. [2024-11-28 02:42:26,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1095 places, 1112 transitions, 2805 flow [2024-11-28 02:42:27,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1094 places, 1112 transitions, 2803 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:42:27,295 INFO L231 Difference]: Finished difference. Result has 1094 places, 1112 transitions, 2249 flow [2024-11-28 02:42:27,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1205, PETRI_DIFFERENCE_MINUEND_FLOW=2239, PETRI_DIFFERENCE_MINUEND_PLACES=1089, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2249, PETRI_PLACES=1094, PETRI_TRANSITIONS=1112} [2024-11-28 02:42:27,299 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -21 predicate places. [2024-11-28 02:42:27,299 INFO L471 AbstractCegarLoop]: Abstraction has has 1094 places, 1112 transitions, 2249 flow [2024-11-28 02:42:27,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 02:42:27,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:42:27,303 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] [2024-11-28 02:42:27,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:42:27,304 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-28 02:42:27,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash -168709565, now seen corresponding path program 1 times [2024-11-28 02:42:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:27,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070612304] [2024-11-28 02:42:27,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:27,994 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 02:42:27,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:27,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070612304] [2024-11-28 02:42:27,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070612304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:42:27,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:42:27,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:42:27,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216365150] [2024-11-28 02:42:27,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:42:27,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:42:27,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:27,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:42:27,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:42:31,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1205 [2024-11-28 02:42:31,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1094 places, 1112 transitions, 2249 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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 02:42:31,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:42:31,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1205 [2024-11-28 02:42:31,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand