./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:55:24,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:55:24,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:55:24,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:55:24,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:55:24,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:55:24,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:55:24,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:55:24,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:55:24,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:55:24,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:55:24,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:55:24,459 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:55:24,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:55:24,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:55:24,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:55:24,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:55:24,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:55:24,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:55:24,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:55:24,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:55:24,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:55:24,467 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:55:24,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:55:24,467 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:55:24,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:55:24,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:55:24,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:55:24,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:55:24,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:55:24,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:55:24,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:55:24,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:55:24,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:55:24,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:55:24,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:55:24,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:55:24,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:55:24,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:55:24,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:55:24,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:55:24,482 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2024-10-31 21:55:24,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:55:24,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:55:24,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:55:24,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:55:24,794 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:55:24,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/stateful01-1.i Unable to find full path for "g++" [2024-10-31 21:55:26,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:55:27,105 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:55:27,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/sv-benchmarks/c/pthread/stateful01-1.i [2024-10-31 21:55:27,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/data/7fbcb3bdb/7f4130a9d4c344a2a40516e969115955/FLAG4f7b4e8b2 [2024-10-31 21:55:27,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/data/7fbcb3bdb/7f4130a9d4c344a2a40516e969115955 [2024-10-31 21:55:27,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:55:27,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:55:27,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:27,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:55:27,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:55:27,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:27" (1/1) ... [2024-10-31 21:55:27,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ec9a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:27, skipping insertion in model container [2024-10-31 21:55:27,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:27" (1/1) ... [2024-10-31 21:55:27,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:55:27,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:27,921 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:55:27,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,047 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:55:28,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28 WrapperNode [2024-10-31 21:55:28,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:28,049 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:55:28,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:55:28,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,120 INFO L138 Inliner]: procedures = 168, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-31 21:55:28,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:55:28,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:55:28,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:55:28,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:55:28,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:55:28,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:55:28,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:28,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:55:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 21:55:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 21:55:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 21:55:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 21:55:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:55:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:55:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:55:28,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:55:28,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:55:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:55:28,249 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:55:28,402 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:55:28,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:55:28,766 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:55:28,766 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:55:28,841 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:55:28,841 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:55:28,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:28 BoogieIcfgContainer [2024-10-31 21:55:28,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:55:28,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:55:28,852 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:55:28,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:55:28,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:55:27" (1/3) ... [2024-10-31 21:55:28,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4244f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:55:28, skipping insertion in model container [2024-10-31 21:55:28,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (2/3) ... [2024-10-31 21:55:28,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4244f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:55:28, skipping insertion in model container [2024-10-31 21:55:28,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:28" (3/3) ... [2024-10-31 21:55:28,860 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-10-31 21:55:28,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:55:28,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-31 21:55:28,892 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:55:28,978 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:55:29,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 142 transitions, 298 flow [2024-10-31 21:55:29,115 INFO L124 PetriNetUnfolderBase]: 3/140 cut-off events. [2024-10-31 21:55:29,115 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 21:55:29,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 140 events. 3/140 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-31 21:55:29,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 142 transitions, 298 flow [2024-10-31 21:55:29,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 123 transitions, 258 flow [2024-10-31 21:55:29,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:55:29,147 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;@22aae8da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:55:29,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-10-31 21:55:29,167 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:55:29,167 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-31 21:55:29,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:55:29,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:29,169 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:29,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:29,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash 450545791, now seen corresponding path program 1 times [2024-10-31 21:55:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415046759] [2024-10-31 21:55:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:29,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:29,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415046759] [2024-10-31 21:55:29,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415046759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:29,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:29,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262612172] [2024-10-31 21:55:29,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:29,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:29,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:29,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2024-10-31 21:55:29,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2024-10-31 21:55:29,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:29,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2024-10-31 21:55:29,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:29,823 INFO L124 PetriNetUnfolderBase]: 48/400 cut-off events. [2024-10-31 21:55:29,823 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-31 21:55:29,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 400 events. 48/400 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1763 event pairs, 48 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 447. Up to 117 conditions per place. [2024-10-31 21:55:29,834 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 20 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-10-31 21:55:29,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 122 transitions, 300 flow [2024-10-31 21:55:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-10-31 21:55:29,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.863849765258216 [2024-10-31 21:55:29,855 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 258 flow. Second operand 3 states and 368 transitions. [2024-10-31 21:55:29,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 122 transitions, 300 flow [2024-10-31 21:55:29,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 122 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 21:55:29,867 INFO L231 Difference]: Finished difference. Result has 127 places, 122 transitions, 252 flow [2024-10-31 21:55:29,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=127, PETRI_TRANSITIONS=122} [2024-10-31 21:55:29,875 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-10-31 21:55:29,876 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 122 transitions, 252 flow [2024-10-31 21:55:29,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2024-10-31 21:55:29,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:29,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:29,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:55:29,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:29,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,880 INFO L85 PathProgramCache]: Analyzing trace with hash -779526867, now seen corresponding path program 1 times [2024-10-31 21:55:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100840390] [2024-10-31 21:55:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100840390] [2024-10-31 21:55:30,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100840390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:30,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791090287] [2024-10-31 21:55:30,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:30,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2024-10-31 21:55:30,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 122 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2024-10-31 21:55:30,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:30,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2024-10-31 21:55:30,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:30,233 INFO L124 PetriNetUnfolderBase]: 48/399 cut-off events. [2024-10-31 21:55:30,234 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 21:55:30,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 399 events. 48/399 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1729 event pairs, 48 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 491. Up to 117 conditions per place. [2024-10-31 21:55:30,237 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 20 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-10-31 21:55:30,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 294 flow [2024-10-31 21:55:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-10-31 21:55:30,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.863849765258216 [2024-10-31 21:55:30,241 INFO L175 Difference]: Start difference. First operand has 127 places, 122 transitions, 252 flow. Second operand 3 states and 368 transitions. [2024-10-31 21:55:30,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 294 flow [2024-10-31 21:55:30,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 121 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:55:30,244 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 250 flow [2024-10-31 21:55:30,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2024-10-31 21:55:30,246 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-10-31 21:55:30,246 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 250 flow [2024-10-31 21:55:30,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2024-10-31 21:55:30,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:30,247 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:30,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:55:30,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:30,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,248 INFO L85 PathProgramCache]: Analyzing trace with hash 951084617, now seen corresponding path program 1 times [2024-10-31 21:55:30,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471841265] [2024-10-31 21:55:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471841265] [2024-10-31 21:55:30,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471841265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355839687] [2024-10-31 21:55:30,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:30,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:30,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2024-10-31 21:55:30,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2024-10-31 21:55:30,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:30,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2024-10-31 21:55:30,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:30,565 INFO L124 PetriNetUnfolderBase]: 84/526 cut-off events. [2024-10-31 21:55:30,566 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-31 21:55:30,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 526 events. 84/526 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2689 event pairs, 38 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 691. Up to 129 conditions per place. [2024-10-31 21:55:30,570 INFO L140 encePairwiseOnDemand]: 132/142 looper letters, 32 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2024-10-31 21:55:30,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 360 flow [2024-10-31 21:55:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-10-31 21:55:30,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084507042253521 [2024-10-31 21:55:30,573 INFO L175 Difference]: Start difference. First operand has 126 places, 121 transitions, 250 flow. Second operand 3 states and 387 transitions. [2024-10-31 21:55:30,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 360 flow [2024-10-31 21:55:30,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 136 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:55:30,577 INFO L231 Difference]: Finished difference. Result has 127 places, 126 transitions, 300 flow [2024-10-31 21:55:30,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=127, PETRI_TRANSITIONS=126} [2024-10-31 21:55:30,579 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-10-31 21:55:30,579 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 126 transitions, 300 flow [2024-10-31 21:55:30,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2024-10-31 21:55:30,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:30,580 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:30,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:55:30,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:30,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1423405637, now seen corresponding path program 1 times [2024-10-31 21:55:30,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415584654] [2024-10-31 21:55:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415584654] [2024-10-31 21:55:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415584654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:30,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867379357] [2024-10-31 21:55:30,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:30,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2024-10-31 21:55:30,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2024-10-31 21:55:30,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:30,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2024-10-31 21:55:30,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:30,851 INFO L124 PetriNetUnfolderBase]: 103/616 cut-off events. [2024-10-31 21:55:30,852 INFO L125 PetriNetUnfolderBase]: For 146/160 co-relation queries the response was YES. [2024-10-31 21:55:30,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 616 events. 103/616 cut-off events. For 146/160 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3575 event pairs, 60 based on Foata normal form. 6/565 useless extension candidates. Maximal degree in co-relation 812. Up to 195 conditions per place. [2024-10-31 21:55:30,856 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 29 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2024-10-31 21:55:30,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 136 transitions, 403 flow [2024-10-31 21:55:30,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:30,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2024-10-31 21:55:30,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8990610328638498 [2024-10-31 21:55:30,859 INFO L175 Difference]: Start difference. First operand has 127 places, 126 transitions, 300 flow. Second operand 3 states and 383 transitions. [2024-10-31 21:55:30,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 136 transitions, 403 flow [2024-10-31 21:55:30,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 136 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:55:30,867 INFO L231 Difference]: Finished difference. Result has 129 places, 131 transitions, 342 flow [2024-10-31 21:55:30,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=129, PETRI_TRANSITIONS=131} [2024-10-31 21:55:30,868 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -1 predicate places. [2024-10-31 21:55:30,868 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 131 transitions, 342 flow [2024-10-31 21:55:30,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2024-10-31 21:55:30,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:30,869 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:30,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:55:30,871 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:30,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,873 INFO L85 PathProgramCache]: Analyzing trace with hash 106293525, now seen corresponding path program 1 times [2024-10-31 21:55:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662625104] [2024-10-31 21:55:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662625104] [2024-10-31 21:55:30,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662625104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450970377] [2024-10-31 21:55:30,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:30,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:31,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2024-10-31 21:55:31,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 131 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2024-10-31 21:55:31,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:31,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2024-10-31 21:55:31,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:31,195 INFO L124 PetriNetUnfolderBase]: 122/738 cut-off events. [2024-10-31 21:55:31,195 INFO L125 PetriNetUnfolderBase]: For 266/274 co-relation queries the response was YES. [2024-10-31 21:55:31,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1239 conditions, 738 events. 122/738 cut-off events. For 266/274 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4412 event pairs, 62 based on Foata normal form. 2/661 useless extension candidates. Maximal degree in co-relation 1025. Up to 220 conditions per place. [2024-10-31 21:55:31,201 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 30 selfloop transitions, 9 changer transitions 0/141 dead transitions. [2024-10-31 21:55:31,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 141 transitions, 455 flow [2024-10-31 21:55:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2024-10-31 21:55:31,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8990610328638498 [2024-10-31 21:55:31,204 INFO L175 Difference]: Start difference. First operand has 129 places, 131 transitions, 342 flow. Second operand 3 states and 383 transitions. [2024-10-31 21:55:31,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 141 transitions, 455 flow [2024-10-31 21:55:31,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 141 transitions, 437 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:55:31,211 INFO L231 Difference]: Finished difference. Result has 131 places, 136 transitions, 396 flow [2024-10-31 21:55:31,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=131, PETRI_TRANSITIONS=136} [2024-10-31 21:55:31,213 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 1 predicate places. [2024-10-31 21:55:31,215 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 396 flow [2024-10-31 21:55:31,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2024-10-31 21:55:31,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:31,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:31,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:55:31,216 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:31,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1136001590, now seen corresponding path program 1 times [2024-10-31 21:55:31,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669789544] [2024-10-31 21:55:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:31,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669789544] [2024-10-31 21:55:31,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669789544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:31,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:31,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:31,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469792090] [2024-10-31 21:55:31,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:31,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:31,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:31,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:31,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:31,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 142 [2024-10-31 21:55:31,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-10-31 21:55:31,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:31,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 142 [2024-10-31 21:55:31,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:31,511 INFO L124 PetriNetUnfolderBase]: 102/695 cut-off events. [2024-10-31 21:55:31,512 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2024-10-31 21:55:31,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 695 events. 102/695 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4152 event pairs, 44 based on Foata normal form. 1/649 useless extension candidates. Maximal degree in co-relation 986. Up to 146 conditions per place. [2024-10-31 21:55:31,517 INFO L140 encePairwiseOnDemand]: 132/142 looper letters, 30 selfloop transitions, 6 changer transitions 6/151 dead transitions. [2024-10-31 21:55:31,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 151 transitions, 504 flow [2024-10-31 21:55:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-10-31 21:55:31,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061032863849765 [2024-10-31 21:55:31,519 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 396 flow. Second operand 3 states and 386 transitions. [2024-10-31 21:55:31,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 151 transitions, 504 flow [2024-10-31 21:55:31,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 151 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:55:31,527 INFO L231 Difference]: Finished difference. Result has 132 places, 135 transitions, 413 flow [2024-10-31 21:55:31,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=413, PETRI_PLACES=132, PETRI_TRANSITIONS=135} [2024-10-31 21:55:31,528 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-10-31 21:55:31,529 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 135 transitions, 413 flow [2024-10-31 21:55:31,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-10-31 21:55:31,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:31,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:31,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:55:31,530 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:31,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,531 INFO L85 PathProgramCache]: Analyzing trace with hash 792898737, now seen corresponding path program 1 times [2024-10-31 21:55:31,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20563150] [2024-10-31 21:55:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:31,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20563150] [2024-10-31 21:55:31,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20563150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:31,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:31,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:55:31,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134668381] [2024-10-31 21:55:31,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:31,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:31,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:31,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:31,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 142 [2024-10-31 21:55:31,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 135 transitions, 413 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2024-10-31 21:55:31,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:31,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 142 [2024-10-31 21:55:31,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:31,917 INFO L124 PetriNetUnfolderBase]: 12/237 cut-off events. [2024-10-31 21:55:31,917 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-31 21:55:31,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 237 events. 12/237 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 588 event pairs, 4 based on Foata normal form. 8/235 useless extension candidates. Maximal degree in co-relation 180. Up to 27 conditions per place. [2024-10-31 21:55:31,922 INFO L140 encePairwiseOnDemand]: 134/142 looper letters, 8 selfloop transitions, 8 changer transitions 0/109 dead transitions. [2024-10-31 21:55:31,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 109 transitions, 307 flow [2024-10-31 21:55:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-10-31 21:55:31,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.92018779342723 [2024-10-31 21:55:31,932 INFO L175 Difference]: Start difference. First operand has 132 places, 135 transitions, 413 flow. Second operand 3 states and 392 transitions. [2024-10-31 21:55:31,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 109 transitions, 307 flow [2024-10-31 21:55:31,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 255 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-10-31 21:55:31,944 INFO L231 Difference]: Finished difference. Result has 112 places, 107 transitions, 233 flow [2024-10-31 21:55:31,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=112, PETRI_TRANSITIONS=107} [2024-10-31 21:55:31,945 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -18 predicate places. [2024-10-31 21:55:31,945 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 107 transitions, 233 flow [2024-10-31 21:55:31,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2024-10-31 21:55:31,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:31,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:31,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:55:31,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:31,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1314926669, now seen corresponding path program 1 times [2024-10-31 21:55:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934936474] [2024-10-31 21:55:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:32,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934936474] [2024-10-31 21:55:32,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934936474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452978588] [2024-10-31 21:55:32,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:32,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:32,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2024-10-31 21:55:32,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 107 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-10-31 21:55:32,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:32,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2024-10-31 21:55:32,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:32,189 INFO L124 PetriNetUnfolderBase]: 19/268 cut-off events. [2024-10-31 21:55:32,189 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-31 21:55:32,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 268 events. 19/268 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 792 event pairs, 17 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 222. Up to 70 conditions per place. [2024-10-31 21:55:32,191 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 17 selfloop transitions, 2 changer transitions 4/107 dead transitions. [2024-10-31 21:55:32,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 107 transitions, 274 flow [2024-10-31 21:55:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-10-31 21:55:32,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8732394366197183 [2024-10-31 21:55:32,193 INFO L175 Difference]: Start difference. First operand has 112 places, 107 transitions, 233 flow. Second operand 3 states and 372 transitions. [2024-10-31 21:55:32,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 107 transitions, 274 flow [2024-10-31 21:55:32,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 107 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:55:32,197 INFO L231 Difference]: Finished difference. Result has 112 places, 102 transitions, 218 flow [2024-10-31 21:55:32,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=112, PETRI_TRANSITIONS=102} [2024-10-31 21:55:32,199 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -18 predicate places. [2024-10-31 21:55:32,200 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 102 transitions, 218 flow [2024-10-31 21:55:32,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-10-31 21:55:32,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:55:32,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:55:32,202 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-31 21:55:32,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,203 INFO L85 PathProgramCache]: Analyzing trace with hash 478616355, now seen corresponding path program 1 times [2024-10-31 21:55:32,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875198733] [2024-10-31 21:55:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:32,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875198733] [2024-10-31 21:55:32,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875198733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511565731] [2024-10-31 21:55:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:32,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2024-10-31 21:55:32,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 102 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-10-31 21:55:32,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:55:32,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2024-10-31 21:55:32,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:55:32,380 INFO L124 PetriNetUnfolderBase]: 16/228 cut-off events. [2024-10-31 21:55:32,380 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-31 21:55:32,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 228 events. 16/228 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 584 event pairs, 14 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 201. Up to 59 conditions per place. [2024-10-31 21:55:32,381 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2024-10-31 21:55:32,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 257 flow [2024-10-31 21:55:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:55:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2024-10-31 21:55:32,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8708920187793427 [2024-10-31 21:55:32,383 INFO L175 Difference]: Start difference. First operand has 112 places, 102 transitions, 218 flow. Second operand 3 states and 371 transitions. [2024-10-31 21:55:32,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 257 flow [2024-10-31 21:55:32,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:55:32,385 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2024-10-31 21:55:32,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2024-10-31 21:55:32,387 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -23 predicate places. [2024-10-31 21:55:32,387 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2024-10-31 21:55:32,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-10-31 21:55:32,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2024-10-31 21:55:32,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-10-31 21:55:32,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-10-31 21:55:32,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-10-31 21:55:32,392 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-10-31 21:55:32,392 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-10-31 21:55:32,392 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-10-31 21:55:32,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-10-31 21:55:32,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-10-31 21:55:32,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-10-31 21:55:32,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-10-31 21:55:32,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-10-31 21:55:32,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining) [2024-10-31 21:55:32,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 22 remaining) [2024-10-31 21:55:32,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-10-31 21:55:32,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-10-31 21:55:32,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-10-31 21:55:32,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-10-31 21:55:32,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-10-31 21:55:32,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-10-31 21:55:32,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-10-31 21:55:32,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-10-31 21:55:32,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:55:32,398 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,406 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:55:32,406 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:55:32,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:55:32 BasicIcfg [2024-10-31 21:55:32,412 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:55:32,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:55:32,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:55:32,413 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:55:32,413 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:28" (3/4) ... [2024-10-31 21:55:32,415 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:55:32,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-31 21:55:32,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-31 21:55:32,424 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-31 21:55:32,424 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:55:32,424 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 21:55:32,424 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:55:32,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:55:32,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:55:32,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:55:32,525 INFO L158 Benchmark]: Toolchain (without parser) took 5152.80ms. Allocated memory was 144.7MB in the beginning and 234.9MB in the end (delta: 90.2MB). Free memory was 105.1MB in the beginning and 132.4MB in the end (delta: -27.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,525 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 144.7MB. Free memory was 89.5MB in the beginning and 89.3MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:55:32,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.33ms. Allocated memory is still 144.7MB. Free memory was 104.8MB in the beginning and 82.3MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.26ms. Allocated memory is still 144.7MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,526 INFO L158 Benchmark]: Boogie Preprocessor took 49.56ms. Allocated memory is still 144.7MB. Free memory was 80.2MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,527 INFO L158 Benchmark]: RCFGBuilder took 670.45ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 78.7MB in the beginning and 156.5MB in the end (delta: -77.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,527 INFO L158 Benchmark]: TraceAbstraction took 3564.71ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 155.6MB in the beginning and 137.6MB in the end (delta: 18.0MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,528 INFO L158 Benchmark]: Witness Printer took 111.76ms. Allocated memory is still 234.9MB. Free memory was 137.6MB in the beginning and 132.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 21:55:32,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 144.7MB. Free memory was 89.5MB in the beginning and 89.3MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.33ms. Allocated memory is still 144.7MB. Free memory was 104.8MB in the beginning and 82.3MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.26ms. Allocated memory is still 144.7MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.56ms. Allocated memory is still 144.7MB. Free memory was 80.2MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.45ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 78.7MB in the beginning and 156.5MB in the end (delta: -77.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3564.71ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 155.6MB in the beginning and 137.6MB in the end (delta: 18.0MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Witness Printer took 111.76ms. Allocated memory is still 234.9MB. Free memory was 137.6MB in the beginning and 132.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 206 locations, 22 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 47 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=413occurred in iteration=6, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 479 NumberOfCodeBlocks, 479 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 470 ConstructedInterpolants, 0 QuantifiedInterpolants, 504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 21:55:32,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0c5094d-3c7a-4510-b2a9-8432839567f7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE