./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/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_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/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_39aee884-8c70-4bf9-a765-eb46b5938d0c/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 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:34,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:34,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:04:34,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:34,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:34,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:34,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:34,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:34,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:34,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:34,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:34,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:34,411 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:34,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:34,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:34,415 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:34,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:34,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:34,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:34,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:34,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:34,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:34,424 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:04:34,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:34,424 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:34,425 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:34,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:34,425 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:34,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:34,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:34,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:34,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:34,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:34,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:34,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:34,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:34,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:34,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:34,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:34,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:34,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:34,432 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_39aee884-8c70-4bf9-a765-eb46b5938d0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 [2024-10-31 22:04:34,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:34,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:34,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:34,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:34,888 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:34,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i Unable to find full path for "g++" [2024-10-31 22:04:37,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:37,648 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:37,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-10-31 22:04:37,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/data/6183dcea5/3b05d4520c904e00ab971446d48041df/FLAGa02b7bed8 [2024-10-31 22:04:37,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/data/6183dcea5/3b05d4520c904e00ab971446d48041df [2024-10-31 22:04:37,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:37,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:37,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:37,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:37,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:37,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:37" (1/1) ... [2024-10-31 22:04:37,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297b7ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:37, skipping insertion in model container [2024-10-31 22:04:37,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:37" (1/1) ... [2024-10-31 22:04:37,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:38,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:38,588 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:38,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:38,684 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:38,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38 WrapperNode [2024-10-31 22:04:38,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:38,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:38,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:38,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:38,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,788 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-10-31 22:04:38,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:38,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:38,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:38,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:38,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:38,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:38,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:38,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:38,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (1/1) ... [2024-10-31 22:04:38,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:38,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:38,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:38,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:04:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:04:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:04:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:04:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:04:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:04:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:04:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:04:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:39,024 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 22:04:39,291 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:39,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:39,677 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:39,677 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:39,756 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:39,757 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-31 22:04:39,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:39 BoogieIcfgContainer [2024-10-31 22:04:39,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:39,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:39,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:39,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:39,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:37" (1/3) ... [2024-10-31 22:04:39,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1009962d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:39, skipping insertion in model container [2024-10-31 22:04:39,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:38" (2/3) ... [2024-10-31 22:04:39,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1009962d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:39, skipping insertion in model container [2024-10-31 22:04:39,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:39" (3/3) ... [2024-10-31 22:04:39,767 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing-2.i [2024-10-31 22:04:39,785 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:39,785 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-31 22:04:39,785 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:39,875 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:04:39,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 187 transitions, 381 flow [2024-10-31 22:04:40,042 INFO L124 PetriNetUnfolderBase]: 32/286 cut-off events. [2024-10-31 22:04:40,043 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:40,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 286 events. 32/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1119 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 156. Up to 6 conditions per place. [2024-10-31 22:04:40,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 187 transitions, 381 flow [2024-10-31 22:04:40,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 187 transitions, 381 flow [2024-10-31 22:04:40,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:40,080 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;@3a11689c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:40,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-31 22:04:40,094 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:40,094 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-10-31 22:04:40,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:40,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:40,096 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 22:04:40,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-31 22:04:40,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:40,103 INFO L85 PathProgramCache]: Analyzing trace with hash 232964393, now seen corresponding path program 1 times [2024-10-31 22:04:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:40,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205255276] [2024-10-31 22:04:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:40,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:40,525 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 22:04:40,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:40,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205255276] [2024-10-31 22:04:40,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205255276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:40,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:40,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:40,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189259449] [2024-10-31 22:04:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:40,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:40,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:40,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:40,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 187 [2024-10-31 22:04:40,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 187 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 22:04:40,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:40,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 187 [2024-10-31 22:04:40,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:40,943 INFO L124 PetriNetUnfolderBase]: 85/894 cut-off events. [2024-10-31 22:04:40,943 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:04:40,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 894 events. 85/894 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5283 event pairs, 0 based on Foata normal form. 118/923 useless extension candidates. Maximal degree in co-relation 1016. Up to 184 conditions per place. [2024-10-31 22:04:40,952 INFO L140 encePairwiseOnDemand]: 166/187 looper letters, 28 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-10-31 22:04:40,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 174 transitions, 415 flow [2024-10-31 22:04:40,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-10-31 22:04:40,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875222816399287 [2024-10-31 22:04:40,978 INFO L175 Difference]: Start difference. First operand has 170 places, 187 transitions, 381 flow. Second operand 3 states and 491 transitions. [2024-10-31 22:04:40,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 174 transitions, 415 flow [2024-10-31 22:04:40,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 174 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:40,992 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 349 flow [2024-10-31 22:04:40,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2024-10-31 22:04:41,002 INFO L277 CegarLoopForPetriNet]: 170 programPoint places, 1 predicate places. [2024-10-31 22:04:41,002 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 349 flow [2024-10-31 22:04:41,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 22:04:41,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:41,005 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] [2024-10-31 22:04:41,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:41,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-31 22:04:41,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1422501814, now seen corresponding path program 1 times [2024-10-31 22:04:41,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:41,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876098895] [2024-10-31 22:04:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:41,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:41,682 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 22:04:41,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:41,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876098895] [2024-10-31 22:04:41,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876098895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:41,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:41,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:41,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46538611] [2024-10-31 22:04:41,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:41,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:41,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:41,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:41,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:41,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 187 [2024-10-31 22:04:41,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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 22:04:41,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:41,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 187 [2024-10-31 22:04:41,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:42,275 INFO L124 PetriNetUnfolderBase]: 157/1045 cut-off events. [2024-10-31 22:04:42,275 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-31 22:04:42,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1045 events. 157/1045 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6670 event pairs, 102 based on Foata normal form. 0/953 useless extension candidates. Maximal degree in co-relation 1340. Up to 267 conditions per place. [2024-10-31 22:04:42,284 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 57 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-10-31 22:04:42,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 194 transitions, 527 flow [2024-10-31 22:04:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:42,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2024-10-31 22:04:42,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.767379679144385 [2024-10-31 22:04:42,293 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 349 flow. Second operand 6 states and 861 transitions. [2024-10-31 22:04:42,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 194 transitions, 527 flow [2024-10-31 22:04:42,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 194 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:42,299 INFO L231 Difference]: Finished difference. Result has 173 places, 166 transitions, 353 flow [2024-10-31 22:04:42,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=173, PETRI_TRANSITIONS=166} [2024-10-31 22:04:42,301 INFO L277 CegarLoopForPetriNet]: 170 programPoint places, 3 predicate places. [2024-10-31 22:04:42,301 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 166 transitions, 353 flow [2024-10-31 22:04:42,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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 22:04:42,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:42,303 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] [2024-10-31 22:04:42,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:42,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-31 22:04:42,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:42,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1991920438, now seen corresponding path program 1 times [2024-10-31 22:04:42,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:42,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770833900] [2024-10-31 22:04:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:42,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:42,376 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 22:04:42,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:42,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770833900] [2024-10-31 22:04:42,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770833900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:42,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:42,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:42,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982376543] [2024-10-31 22:04:42,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:42,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:42,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:42,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:42,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:42,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 187 [2024-10-31 22:04:42,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 166 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 22:04:42,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:42,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 187 [2024-10-31 22:04:42,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:42,830 INFO L124 PetriNetUnfolderBase]: 361/2125 cut-off events. [2024-10-31 22:04:42,830 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-31 22:04:42,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 2125 events. 361/2125 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 15804 event pairs, 136 based on Foata normal form. 0/1923 useless extension candidates. Maximal degree in co-relation 2882. Up to 462 conditions per place. [2024-10-31 22:04:42,841 INFO L140 encePairwiseOnDemand]: 165/187 looper letters, 55 selfloop transitions, 16 changer transitions 0/198 dead transitions. [2024-10-31 22:04:42,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 198 transitions, 562 flow [2024-10-31 22:04:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2024-10-31 22:04:42,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270944741532977 [2024-10-31 22:04:42,844 INFO L175 Difference]: Start difference. First operand has 173 places, 166 transitions, 353 flow. Second operand 3 states and 464 transitions. [2024-10-31 22:04:42,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 198 transitions, 562 flow [2024-10-31 22:04:42,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 198 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:04:42,854 INFO L231 Difference]: Finished difference. Result has 172 places, 182 transitions, 483 flow [2024-10-31 22:04:42,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=172, PETRI_TRANSITIONS=182} [2024-10-31 22:04:42,856 INFO L277 CegarLoopForPetriNet]: 170 programPoint places, 2 predicate places. [2024-10-31 22:04:42,857 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 182 transitions, 483 flow [2024-10-31 22:04:42,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 22:04:42,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:42,858 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:42,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:42,859 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-31 22:04:42,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:42,859 INFO L85 PathProgramCache]: Analyzing trace with hash 361355840, now seen corresponding path program 1 times [2024-10-31 22:04:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:42,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018701143] [2024-10-31 22:04:42,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:42,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:42,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:42,959 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:04:42,960 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-31 22:04:42,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-31 22:04:42,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-31 22:04:42,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-31 22:04:42,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-31 22:04:42,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-31 22:04:42,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-31 22:04:42,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-31 22:04:42,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-31 22:04:42,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-31 22:04:42,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-31 22:04:42,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-31 22:04:42,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-31 22:04:42,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-31 22:04:42,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-31 22:04:42,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-31 22:04:42,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-31 22:04:42,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-31 22:04:42,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:42,966 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:04:42,969 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:04:42,969 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:04:43,011 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:04:43,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 243 transitions, 502 flow [2024-10-31 22:04:43,089 INFO L124 PetriNetUnfolderBase]: 54/469 cut-off events. [2024-10-31 22:04:43,089 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:04:43,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 469 events. 54/469 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2058 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 288. Up to 9 conditions per place. [2024-10-31 22:04:43,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 243 transitions, 502 flow [2024-10-31 22:04:43,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 243 transitions, 502 flow [2024-10-31 22:04:43,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:43,105 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;@3a11689c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:43,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-31 22:04:43,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:43,114 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-10-31 22:04:43,114 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:43,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:43,114 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 22:04:43,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:04:43,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:43,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1133942999, now seen corresponding path program 1 times [2024-10-31 22:04:43,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:43,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498877883] [2024-10-31 22:04:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:43,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:43,179 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 22:04:43,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:43,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498877883] [2024-10-31 22:04:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498877883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:43,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:43,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:43,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971752769] [2024-10-31 22:04:43,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:43,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:43,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:43,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 243 [2024-10-31 22:04:43,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 243 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 22:04:43,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:43,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 243 [2024-10-31 22:04:43,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:44,622 INFO L124 PetriNetUnfolderBase]: 1621/8070 cut-off events. [2024-10-31 22:04:44,623 INFO L125 PetriNetUnfolderBase]: For 87/91 co-relation queries the response was YES. [2024-10-31 22:04:44,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 8070 events. 1621/8070 cut-off events. For 87/91 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 85393 event pairs, 686 based on Foata normal form. 1417/8554 useless extension candidates. Maximal degree in co-relation 1403. Up to 2462 conditions per place. [2024-10-31 22:04:44,686 INFO L140 encePairwiseOnDemand]: 216/243 looper letters, 38 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2024-10-31 22:04:44,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 225 transitions, 546 flow [2024-10-31 22:04:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:44,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2024-10-31 22:04:44,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-10-31 22:04:44,689 INFO L175 Difference]: Start difference. First operand has 220 places, 243 transitions, 502 flow. Second operand 3 states and 630 transitions. [2024-10-31 22:04:44,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 225 transitions, 546 flow [2024-10-31 22:04:44,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 225 transitions, 546 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:44,695 INFO L231 Difference]: Finished difference. Result has 221 places, 218 transitions, 462 flow [2024-10-31 22:04:44,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=221, PETRI_TRANSITIONS=218} [2024-10-31 22:04:44,696 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 1 predicate places. [2024-10-31 22:04:44,696 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 218 transitions, 462 flow [2024-10-31 22:04:44,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 22:04:44,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:44,697 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] [2024-10-31 22:04:44,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:44,698 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:04:44,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1919525085, now seen corresponding path program 1 times [2024-10-31 22:04:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:44,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667049277] [2024-10-31 22:04:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:44,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:45,094 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 22:04:45,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:45,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667049277] [2024-10-31 22:04:45,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667049277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:45,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:45,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:45,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902028214] [2024-10-31 22:04:45,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:45,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:45,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 243 [2024-10-31 22:04:45,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 218 transitions, 462 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 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 22:04:45,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:45,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 243 [2024-10-31 22:04:45,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:47,315 INFO L124 PetriNetUnfolderBase]: 2772/10322 cut-off events. [2024-10-31 22:04:47,315 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-10-31 22:04:47,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14950 conditions, 10322 events. 2772/10322 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 109588 event pairs, 1354 based on Foata normal form. 0/9439 useless extension candidates. Maximal degree in co-relation 7517. Up to 3388 conditions per place. [2024-10-31 22:04:47,518 INFO L140 encePairwiseOnDemand]: 237/243 looper letters, 94 selfloop transitions, 6 changer transitions 0/273 dead transitions. [2024-10-31 22:04:47,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 273 transitions, 772 flow [2024-10-31 22:04:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:47,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1144 transitions. [2024-10-31 22:04:47,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7846364883401921 [2024-10-31 22:04:47,524 INFO L175 Difference]: Start difference. First operand has 221 places, 218 transitions, 462 flow. Second operand 6 states and 1144 transitions. [2024-10-31 22:04:47,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 273 transitions, 772 flow [2024-10-31 22:04:47,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 273 transitions, 770 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:47,535 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 470 flow [2024-10-31 22:04:47,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=470, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-10-31 22:04:47,538 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 4 predicate places. [2024-10-31 22:04:47,540 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 470 flow [2024-10-31 22:04:47,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 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 22:04:47,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:47,541 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] [2024-10-31 22:04:47,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:47,542 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:04:47,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:47,543 INFO L85 PathProgramCache]: Analyzing trace with hash -181576141, now seen corresponding path program 1 times [2024-10-31 22:04:47,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:47,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186307041] [2024-10-31 22:04:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:47,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:47,598 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 22:04:47,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:47,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186307041] [2024-10-31 22:04:47,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186307041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:47,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:47,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:47,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346213778] [2024-10-31 22:04:47,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:47,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:47,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:47,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:47,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:47,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 243 [2024-10-31 22:04:47,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 22:04:47,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:47,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 243 [2024-10-31 22:04:47,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:55,763 INFO L124 PetriNetUnfolderBase]: 17343/55534 cut-off events. [2024-10-31 22:04:55,764 INFO L125 PetriNetUnfolderBase]: For 450/450 co-relation queries the response was YES. [2024-10-31 22:04:55,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83718 conditions, 55534 events. 17343/55534 cut-off events. For 450/450 co-relation queries the response was YES. Maximal size of possible extension queue 976. Compared 710630 event pairs, 6436 based on Foata normal form. 0/49625 useless extension candidates. Maximal degree in co-relation 69220. Up to 16484 conditions per place. [2024-10-31 22:04:56,221 INFO L140 encePairwiseOnDemand]: 210/243 looper letters, 84 selfloop transitions, 24 changer transitions 0/266 dead transitions. [2024-10-31 22:04:56,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 266 transitions, 795 flow [2024-10-31 22:04:56,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-10-31 22:04:56,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2024-10-31 22:04:56,224 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 470 flow. Second operand 3 states and 594 transitions. [2024-10-31 22:04:56,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 266 transitions, 795 flow [2024-10-31 22:04:56,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 266 transitions, 783 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:04:56,236 INFO L231 Difference]: Finished difference. Result has 223 places, 241 transitions, 668 flow [2024-10-31 22:04:56,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=223, PETRI_TRANSITIONS=241} [2024-10-31 22:04:56,237 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 3 predicate places. [2024-10-31 22:04:56,238 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 241 transitions, 668 flow [2024-10-31 22:04:56,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 22:04:56,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:56,239 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] [2024-10-31 22:04:56,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:56,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:04:56,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1992323094, now seen corresponding path program 1 times [2024-10-31 22:04:56,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:56,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320926574] [2024-10-31 22:04:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:56,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:56,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:56,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320926574] [2024-10-31 22:04:56,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320926574] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:56,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4554592] [2024-10-31 22:04:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:56,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:56,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:56,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:56,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:04:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:56,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:04:56,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:04:56,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:56,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4554592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:56,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:04:56,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-31 22:04:56,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039537666] [2024-10-31 22:04:56,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:56,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:56,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:56,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:56,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:56,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 243 [2024-10-31 22:04:56,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 241 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:56,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:56,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 243 [2024-10-31 22:04:56,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:06,348 INFO L124 PetriNetUnfolderBase]: 17695/61067 cut-off events. [2024-10-31 22:05:06,348 INFO L125 PetriNetUnfolderBase]: For 21211/22220 co-relation queries the response was YES. [2024-10-31 22:05:06,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109427 conditions, 61067 events. 17695/61067 cut-off events. For 21211/22220 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 811365 event pairs, 10523 based on Foata normal form. 203/55483 useless extension candidates. Maximal degree in co-relation 105670. Up to 24221 conditions per place. [2024-10-31 22:05:06,783 INFO L140 encePairwiseOnDemand]: 229/243 looper letters, 74 selfloop transitions, 24 changer transitions 0/277 dead transitions. [2024-10-31 22:05:06,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 277 transitions, 996 flow [2024-10-31 22:05:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 587 transitions. [2024-10-31 22:05:06,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8052126200274349 [2024-10-31 22:05:06,788 INFO L175 Difference]: Start difference. First operand has 223 places, 241 transitions, 668 flow. Second operand 3 states and 587 transitions. [2024-10-31 22:05:06,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 277 transitions, 996 flow [2024-10-31 22:05:06,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 277 transitions, 928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:06,846 INFO L231 Difference]: Finished difference. Result has 225 places, 263 transitions, 846 flow [2024-10-31 22:05:06,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=225, PETRI_TRANSITIONS=263} [2024-10-31 22:05:06,851 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 5 predicate places. [2024-10-31 22:05:06,851 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 263 transitions, 846 flow [2024-10-31 22:05:06,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:06,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:06,852 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] [2024-10-31 22:05:06,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:05:07,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39aee884-8c70-4bf9-a765-eb46b5938d0c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:07,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-31 22:05:07,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2093193768, now seen corresponding path program 1 times [2024-10-31 22:05:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:07,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134778216] [2024-10-31 22:05:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:07,130 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 22:05:07,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:07,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134778216] [2024-10-31 22:05:07,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134778216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:07,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:07,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:05:07,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142652555] [2024-10-31 22:05:07,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:07,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:07,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:07,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:07,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 243 [2024-10-31 22:05:07,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 263 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 22:05:07,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:07,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 243 [2024-10-31 22:05:07,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand