./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX --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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:19:36,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:19:36,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:19:36,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:19:36,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:19:36,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:19:36,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:19:36,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:19:36,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:19:36,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:19:36,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:19:36,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:19:36,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:19:36,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:19:36,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:19:36,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:19:36,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:19:36,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:19:36,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:19:36,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:19:36,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:19:36,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:19:36,315 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:19:36,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:19:36,316 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:19:36,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:19:36,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:19:36,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:19:36,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:19:36,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:19:36,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:19:36,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:19:36,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:19:36,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:19:36,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:19:36,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:19:36,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:19:36,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:19:36,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:19:36,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:19:36,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:19:36,330 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_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-08 17:19:36,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:19:36,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:19:36,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:19:36,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:19:36,760 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:19:36,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i Unable to find full path for "g++" [2024-11-08 17:19:39,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:19:39,712 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:19:39,713 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-08 17:19:39,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/data/906d210a9/0143ab7d1dd0408a8a5322172b205f01/FLAG05bcc31b3 [2024-11-08 17:19:39,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/data/906d210a9/0143ab7d1dd0408a8a5322172b205f01 [2024-11-08 17:19:39,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:19:39,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:19:39,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:19:39,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:19:39,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:19:39,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:19:39" (1/1) ... [2024-11-08 17:19:39,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7ce8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:39, skipping insertion in model container [2024-11-08 17:19:39,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:19:39" (1/1) ... [2024-11-08 17:19:39,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:19:40,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:19:40,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:19:40,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:19:40,873 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:19:40,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40 WrapperNode [2024-11-08 17:19:40,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:19:40,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:19:40,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:19:40,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:19:40,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:40,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:40,975 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2024-11-08 17:19:40,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:19:40,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:19:40,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:19:40,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:19:40,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:40,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:40,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:40,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:41,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:41,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:41,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:41,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:41,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:19:41,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:19:41,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:19:41,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:19:41,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (1/1) ... [2024-11-08 17:19:41,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:19:41,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:41,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:19:41,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:19:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:19:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:19:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:19:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:19:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:19:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:19:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:19:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:19:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:19:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:19:41,152 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:19:41,348 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:19:41,351 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:19:41,810 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:19:41,811 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:19:41,844 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:19:41,844 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:19:41,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:19:41 BoogieIcfgContainer [2024-11-08 17:19:41,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:19:41,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:19:41,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:19:41,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:19:41,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:19:39" (1/3) ... [2024-11-08 17:19:41,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26017ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:19:41, skipping insertion in model container [2024-11-08 17:19:41,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:19:40" (2/3) ... [2024-11-08 17:19:41,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26017ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:19:41, skipping insertion in model container [2024-11-08 17:19:41,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:19:41" (3/3) ... [2024-11-08 17:19:41,856 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-08 17:19:41,877 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:19:41,878 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 17:19:41,878 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:19:41,969 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 17:19:42,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 188 transitions, 380 flow [2024-11-08 17:19:42,148 INFO L124 PetriNetUnfolderBase]: 6/187 cut-off events. [2024-11-08 17:19:42,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:19:42,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 187 events. 6/187 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2024-11-08 17:19:42,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 188 transitions, 380 flow [2024-11-08 17:19:42,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 187 transitions, 377 flow [2024-11-08 17:19:42,180 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:19:42,192 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;@2c3be505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:19:42,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 17:19:42,236 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:19:42,237 INFO L124 PetriNetUnfolderBase]: 4/118 cut-off events. [2024-11-08 17:19:42,237 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:19:42,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:42,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:42,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:42,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash 533362969, now seen corresponding path program 1 times [2024-11-08 17:19:42,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:42,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371903217] [2024-11-08 17:19:42,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:42,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:42,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:42,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371903217] [2024-11-08 17:19:42,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371903217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:42,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:19:42,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:19:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644063817] [2024-11-08 17:19:42,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:42,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:19:42,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:19:42,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:19:42,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 188 [2024-11-08 17:19:42,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 187 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:42,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:42,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 188 [2024-11-08 17:19:42,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:43,141 INFO L124 PetriNetUnfolderBase]: 20/332 cut-off events. [2024-11-08 17:19:43,142 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:19:43,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 332 events. 20/332 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 909 event pairs, 10 based on Foata normal form. 2/309 useless extension candidates. Maximal degree in co-relation 274. Up to 37 conditions per place. [2024-11-08 17:19:43,148 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 13 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2024-11-08 17:19:43,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 188 transitions, 409 flow [2024-11-08 17:19:43,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:19:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:19:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2024-11-08 17:19:43,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9556737588652482 [2024-11-08 17:19:43,173 INFO L175 Difference]: Start difference. First operand has 185 places, 187 transitions, 377 flow. Second operand 3 states and 539 transitions. [2024-11-08 17:19:43,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 188 transitions, 409 flow [2024-11-08 17:19:43,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 188 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:19:43,189 INFO L231 Difference]: Finished difference. Result has 187 places, 188 transitions, 390 flow [2024-11-08 17:19:43,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=187, PETRI_TRANSITIONS=188} [2024-11-08 17:19:43,200 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 2 predicate places. [2024-11-08 17:19:43,201 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 188 transitions, 390 flow [2024-11-08 17:19:43,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:43,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:43,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:43,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:19:43,204 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:43,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:43,207 INFO L85 PathProgramCache]: Analyzing trace with hash 994570069, now seen corresponding path program 1 times [2024-11-08 17:19:43,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:43,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740635977] [2024-11-08 17:19:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:43,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:43,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:43,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:43,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740635977] [2024-11-08 17:19:43,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740635977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778251552] [2024-11-08 17:19:43,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:43,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:43,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:43,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:19:43,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:19:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:43,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:19:43,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:19:43,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:19:43,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778251552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:43,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:19:43,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 17:19:43,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146534081] [2024-11-08 17:19:43,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:43,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:19:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:43,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:19:43,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:19:43,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 188 [2024-11-08 17:19:43,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 188 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:43,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:43,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 188 [2024-11-08 17:19:43,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:44,034 INFO L124 PetriNetUnfolderBase]: 44/500 cut-off events. [2024-11-08 17:19:44,035 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:19:44,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 500 events. 44/500 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1769 event pairs, 10 based on Foata normal form. 6/467 useless extension candidates. Maximal degree in co-relation 503. Up to 54 conditions per place. [2024-11-08 17:19:44,044 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 17 selfloop transitions, 2 changer transitions 0/193 dead transitions. [2024-11-08 17:19:44,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 193 transitions, 438 flow [2024-11-08 17:19:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:19:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:19:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2024-11-08 17:19:44,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9627659574468085 [2024-11-08 17:19:44,048 INFO L175 Difference]: Start difference. First operand has 187 places, 188 transitions, 390 flow. Second operand 3 states and 543 transitions. [2024-11-08 17:19:44,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 193 transitions, 438 flow [2024-11-08 17:19:44,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 436 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:19:44,055 INFO L231 Difference]: Finished difference. Result has 189 places, 189 transitions, 402 flow [2024-11-08 17:19:44,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=189, PETRI_TRANSITIONS=189} [2024-11-08 17:19:44,057 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 4 predicate places. [2024-11-08 17:19:44,057 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 189 transitions, 402 flow [2024-11-08 17:19:44,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:44,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:44,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:44,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:19:44,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:44,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:44,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1101304270, now seen corresponding path program 1 times [2024-11-08 17:19:44,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:44,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433004939] [2024-11-08 17:19:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:44,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:44,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:44,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433004939] [2024-11-08 17:19:44,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433004939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:44,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484505665] [2024-11-08 17:19:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:44,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:44,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:44,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:19:44,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:19:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:44,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:19:44,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:44,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:19:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:44,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484505665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:19:44,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:19:44,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 17:19:44,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512874724] [2024-11-08 17:19:44,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:19:44,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:19:44,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:44,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:19:44,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:19:44,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 188 [2024-11-08 17:19:44,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 189 transitions, 402 flow. Second operand has 10 states, 10 states have (on average 172.3) internal successors, (1723), 10 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:44,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:44,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 188 [2024-11-08 17:19:44,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:45,281 INFO L124 PetriNetUnfolderBase]: 33/511 cut-off events. [2024-11-08 17:19:45,281 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:19:45,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 511 events. 33/511 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1608 event pairs, 14 based on Foata normal form. 4/473 useless extension candidates. Maximal degree in co-relation 478. Up to 51 conditions per place. [2024-11-08 17:19:45,287 INFO L140 encePairwiseOnDemand]: 181/188 looper letters, 19 selfloop transitions, 9 changer transitions 0/198 dead transitions. [2024-11-08 17:19:45,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 198 transitions, 476 flow [2024-11-08 17:19:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:19:45,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:19:45,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1562 transitions. [2024-11-08 17:19:45,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9231678486997635 [2024-11-08 17:19:45,296 INFO L175 Difference]: Start difference. First operand has 189 places, 189 transitions, 402 flow. Second operand 9 states and 1562 transitions. [2024-11-08 17:19:45,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 198 transitions, 476 flow [2024-11-08 17:19:45,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 198 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:19:45,305 INFO L231 Difference]: Finished difference. Result has 199 places, 194 transitions, 446 flow [2024-11-08 17:19:45,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=446, PETRI_PLACES=199, PETRI_TRANSITIONS=194} [2024-11-08 17:19:45,309 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 14 predicate places. [2024-11-08 17:19:45,310 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 194 transitions, 446 flow [2024-11-08 17:19:45,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.3) internal successors, (1723), 10 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:45,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:45,314 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:45,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:19:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:45,516 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:45,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:45,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1731774378, now seen corresponding path program 2 times [2024-11-08 17:19:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:45,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460689349] [2024-11-08 17:19:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:45,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:45,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:45,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460689349] [2024-11-08 17:19:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460689349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766209847] [2024-11-08 17:19:45,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:19:45,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:45,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:45,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:19:45,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:19:46,022 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:19:46,023 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:19:46,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 17:19:46,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:46,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 17:19:46,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 17:19:46,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:19:46,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-08 17:19:46,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:19:46,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-08 17:19:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 17:19:46,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:19:46,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766209847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:46,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:19:46,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 17:19:46,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657733382] [2024-11-08 17:19:46,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:46,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:19:46,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:19:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:19:46,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 188 [2024-11-08 17:19:46,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 194 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:46,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:46,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 188 [2024-11-08 17:19:46,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:47,221 INFO L124 PetriNetUnfolderBase]: 358/1599 cut-off events. [2024-11-08 17:19:47,222 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 17:19:47,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2317 conditions, 1599 events. 358/1599 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 10370 event pairs, 160 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 2202. Up to 544 conditions per place. [2024-11-08 17:19:47,233 INFO L140 encePairwiseOnDemand]: 177/188 looper letters, 36 selfloop transitions, 22 changer transitions 0/223 dead transitions. [2024-11-08 17:19:47,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 223 transitions, 620 flow [2024-11-08 17:19:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:19:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:19:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1013 transitions. [2024-11-08 17:19:47,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8980496453900709 [2024-11-08 17:19:47,240 INFO L175 Difference]: Start difference. First operand has 199 places, 194 transitions, 446 flow. Second operand 6 states and 1013 transitions. [2024-11-08 17:19:47,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 223 transitions, 620 flow [2024-11-08 17:19:47,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 223 transitions, 614 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 17:19:47,246 INFO L231 Difference]: Finished difference. Result has 208 places, 215 transitions, 590 flow [2024-11-08 17:19:47,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=590, PETRI_PLACES=208, PETRI_TRANSITIONS=215} [2024-11-08 17:19:47,247 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 23 predicate places. [2024-11-08 17:19:47,248 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 215 transitions, 590 flow [2024-11-08 17:19:47,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:47,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:47,250 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:47,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:19:47,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:47,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:47,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:47,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1725797892, now seen corresponding path program 1 times [2024-11-08 17:19:47,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:47,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279981567] [2024-11-08 17:19:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:47,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:47,732 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:47,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:47,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279981567] [2024-11-08 17:19:47,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279981567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:47,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553025987] [2024-11-08 17:19:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:47,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:47,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:47,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:19:47,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:19:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:47,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:19:47,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:47,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:19:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:48,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553025987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:19:48,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:19:48,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 17:19:48,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286607015] [2024-11-08 17:19:48,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:19:48,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:19:48,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:48,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:19:48,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:19:48,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 188 [2024-11-08 17:19:48,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 215 transitions, 590 flow. Second operand has 18 states, 18 states have (on average 172.38888888888889) internal successors, (3103), 18 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:48,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:48,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 188 [2024-11-08 17:19:48,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:48,617 INFO L124 PetriNetUnfolderBase]: 139/1159 cut-off events. [2024-11-08 17:19:48,618 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2024-11-08 17:19:48,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1665 conditions, 1159 events. 139/1159 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6035 event pairs, 24 based on Foata normal form. 4/1069 useless extension candidates. Maximal degree in co-relation 1462. Up to 133 conditions per place. [2024-11-08 17:19:48,628 INFO L140 encePairwiseOnDemand]: 182/188 looper letters, 27 selfloop transitions, 21 changer transitions 0/239 dead transitions. [2024-11-08 17:19:48,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 239 transitions, 786 flow [2024-11-08 17:19:48,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 17:19:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 17:19:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3622 transitions. [2024-11-08 17:19:48,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174265450861195 [2024-11-08 17:19:48,636 INFO L175 Difference]: Start difference. First operand has 208 places, 215 transitions, 590 flow. Second operand 21 states and 3622 transitions. [2024-11-08 17:19:48,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 239 transitions, 786 flow [2024-11-08 17:19:48,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 239 transitions, 786 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:19:48,646 INFO L231 Difference]: Finished difference. Result has 233 places, 228 transitions, 720 flow [2024-11-08 17:19:48,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=720, PETRI_PLACES=233, PETRI_TRANSITIONS=228} [2024-11-08 17:19:48,648 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 48 predicate places. [2024-11-08 17:19:48,648 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 228 transitions, 720 flow [2024-11-08 17:19:48,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 172.38888888888889) internal successors, (3103), 18 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:48,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:48,652 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:48,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:19:48,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:48,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:48,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash 477348076, now seen corresponding path program 2 times [2024-11-08 17:19:48,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:48,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358734562] [2024-11-08 17:19:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:48,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:49,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358734562] [2024-11-08 17:19:49,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358734562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:49,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041456917] [2024-11-08 17:19:49,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:19:49,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:49,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:49,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:19:49,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:19:49,454 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:19:49,455 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:19:49,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 17:19:49,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:49,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 17:19:49,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 17:19:49,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:19:49,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-08 17:19:49,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:19:49,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-08 17:19:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-08 17:19:49,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:19:49,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041456917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:49,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:19:49,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 17:19:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111145533] [2024-11-08 17:19:49,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:49,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:19:49,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:19:49,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:19:49,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 188 [2024-11-08 17:19:49,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 228 transitions, 720 flow. Second operand has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:49,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:49,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 188 [2024-11-08 17:19:49,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:50,612 INFO L124 PetriNetUnfolderBase]: 542/2494 cut-off events. [2024-11-08 17:19:50,612 INFO L125 PetriNetUnfolderBase]: For 413/443 co-relation queries the response was YES. [2024-11-08 17:19:50,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4199 conditions, 2494 events. 542/2494 cut-off events. For 413/443 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 18066 event pairs, 194 based on Foata normal form. 5/2333 useless extension candidates. Maximal degree in co-relation 3996. Up to 824 conditions per place. [2024-11-08 17:19:50,633 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 61 selfloop transitions, 46 changer transitions 0/289 dead transitions. [2024-11-08 17:19:50,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 289 transitions, 1098 flow [2024-11-08 17:19:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:19:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:19:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1037 transitions. [2024-11-08 17:19:50,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9193262411347518 [2024-11-08 17:19:50,636 INFO L175 Difference]: Start difference. First operand has 233 places, 228 transitions, 720 flow. Second operand 6 states and 1037 transitions. [2024-11-08 17:19:50,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 289 transitions, 1098 flow [2024-11-08 17:19:50,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 289 transitions, 1074 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 17:19:50,647 INFO L231 Difference]: Finished difference. Result has 237 places, 273 transitions, 1050 flow [2024-11-08 17:19:50,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1050, PETRI_PLACES=237, PETRI_TRANSITIONS=273} [2024-11-08 17:19:50,649 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 52 predicate places. [2024-11-08 17:19:50,650 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 273 transitions, 1050 flow [2024-11-08 17:19:50,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:50,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:50,652 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:50,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:19:50,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 17:19:50,853 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:50,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1362020973, now seen corresponding path program 1 times [2024-11-08 17:19:50,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:50,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471096390] [2024-11-08 17:19:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:50,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:51,409 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:51,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:51,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471096390] [2024-11-08 17:19:51,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471096390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:51,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908853558] [2024-11-08 17:19:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:51,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:19:51,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:19:51,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:19:51,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:19:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:51,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:19:51,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:51,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:19:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:19:52,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908853558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:19:52,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:19:52,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 17:19:52,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107591173] [2024-11-08 17:19:52,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:19:52,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:19:52,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:19:52,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:19:52,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 188 [2024-11-08 17:19:52,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 273 transitions, 1050 flow. Second operand has 23 states, 23 states have (on average 172.52173913043478) internal successors, (3968), 23 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:52,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:52,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 188 [2024-11-08 17:19:52,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:52,981 INFO L124 PetriNetUnfolderBase]: 291/1803 cut-off events. [2024-11-08 17:19:52,982 INFO L125 PetriNetUnfolderBase]: For 601/630 co-relation queries the response was YES. [2024-11-08 17:19:52,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3244 conditions, 1803 events. 291/1803 cut-off events. For 601/630 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 11857 event pairs, 40 based on Foata normal form. 13/1711 useless extension candidates. Maximal degree in co-relation 2947. Up to 204 conditions per place. [2024-11-08 17:19:53,001 INFO L140 encePairwiseOnDemand]: 182/188 looper letters, 33 selfloop transitions, 30 changer transitions 0/299 dead transitions. [2024-11-08 17:19:53,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 299 transitions, 1316 flow [2024-11-08 17:19:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 17:19:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 17:19:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5166 transitions. [2024-11-08 17:19:53,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159574468085107 [2024-11-08 17:19:53,012 INFO L175 Difference]: Start difference. First operand has 237 places, 273 transitions, 1050 flow. Second operand 30 states and 5166 transitions. [2024-11-08 17:19:53,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 299 transitions, 1316 flow [2024-11-08 17:19:53,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 299 transitions, 1316 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:19:53,026 INFO L231 Difference]: Finished difference. Result has 270 places, 283 transitions, 1202 flow [2024-11-08 17:19:53,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1202, PETRI_PLACES=270, PETRI_TRANSITIONS=283} [2024-11-08 17:19:53,027 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 85 predicate places. [2024-11-08 17:19:53,027 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 283 transitions, 1202 flow [2024-11-08 17:19:53,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 172.52173913043478) internal successors, (3968), 23 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:53,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:53,030 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:53,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:19:53,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_673a9950-a865-4d8a-a6c9-caa2b61da7aa/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 17:19:53,234 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:53,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:53,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1171863775, now seen corresponding path program 2 times [2024-11-08 17:19:53,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:53,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523581633] [2024-11-08 17:19:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:53,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:54,096 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:19:54,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:54,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523581633] [2024-11-08 17:19:54,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523581633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:54,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:19:54,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:19:54,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884326397] [2024-11-08 17:19:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:54,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:19:54,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:19:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:19:54,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 188 [2024-11-08 17:19:54,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 283 transitions, 1202 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:54,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:54,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 188 [2024-11-08 17:19:54,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:55,651 INFO L124 PetriNetUnfolderBase]: 992/3406 cut-off events. [2024-11-08 17:19:55,651 INFO L125 PetriNetUnfolderBase]: For 2011/2106 co-relation queries the response was YES. [2024-11-08 17:19:55,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7652 conditions, 3406 events. 992/3406 cut-off events. For 2011/2106 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 24309 event pairs, 303 based on Foata normal form. 20/3241 useless extension candidates. Maximal degree in co-relation 7364. Up to 1634 conditions per place. [2024-11-08 17:19:55,732 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 102 selfloop transitions, 57 changer transitions 0/338 dead transitions. [2024-11-08 17:19:55,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 338 transitions, 1764 flow [2024-11-08 17:19:55,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:19:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:19:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2024-11-08 17:19:55,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8679078014184397 [2024-11-08 17:19:55,734 INFO L175 Difference]: Start difference. First operand has 270 places, 283 transitions, 1202 flow. Second operand 6 states and 979 transitions. [2024-11-08 17:19:55,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 338 transitions, 1764 flow [2024-11-08 17:19:55,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 338 transitions, 1718 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-08 17:19:55,751 INFO L231 Difference]: Finished difference. Result has 262 places, 330 transitions, 1654 flow [2024-11-08 17:19:55,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1654, PETRI_PLACES=262, PETRI_TRANSITIONS=330} [2024-11-08 17:19:55,755 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 77 predicate places. [2024-11-08 17:19:55,756 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 330 transitions, 1654 flow [2024-11-08 17:19:55,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:55,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:55,757 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:55,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:19:55,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:55,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash 98871333, now seen corresponding path program 1 times [2024-11-08 17:19:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:55,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805015281] [2024-11-08 17:19:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:55,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:19:56,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:56,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805015281] [2024-11-08 17:19:56,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805015281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:56,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:19:56,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:19:56,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999220769] [2024-11-08 17:19:56,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:56,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:19:56,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:56,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:19:56,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:19:56,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 188 [2024-11-08 17:19:56,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 330 transitions, 1654 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:56,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:19:56,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 188 [2024-11-08 17:19:56,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:19:58,816 INFO L124 PetriNetUnfolderBase]: 1385/4698 cut-off events. [2024-11-08 17:19:58,816 INFO L125 PetriNetUnfolderBase]: For 5022/5153 co-relation queries the response was YES. [2024-11-08 17:19:58,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11799 conditions, 4698 events. 1385/4698 cut-off events. For 5022/5153 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 36465 event pairs, 341 based on Foata normal form. 40/4505 useless extension candidates. Maximal degree in co-relation 11528. Up to 2190 conditions per place. [2024-11-08 17:19:58,875 INFO L140 encePairwiseOnDemand]: 165/188 looper letters, 147 selfloop transitions, 103 changer transitions 0/431 dead transitions. [2024-11-08 17:19:58,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 431 transitions, 2620 flow [2024-11-08 17:19:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:19:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:19:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1019 transitions. [2024-11-08 17:19:58,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033687943262412 [2024-11-08 17:19:58,879 INFO L175 Difference]: Start difference. First operand has 262 places, 330 transitions, 1654 flow. Second operand 6 states and 1019 transitions. [2024-11-08 17:19:58,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 431 transitions, 2620 flow [2024-11-08 17:19:58,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 431 transitions, 2556 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-08 17:19:58,924 INFO L231 Difference]: Finished difference. Result has 272 places, 415 transitions, 2506 flow [2024-11-08 17:19:58,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2506, PETRI_PLACES=272, PETRI_TRANSITIONS=415} [2024-11-08 17:19:58,926 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 87 predicate places. [2024-11-08 17:19:58,926 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 415 transitions, 2506 flow [2024-11-08 17:19:58,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:19:58,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:19:58,927 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:19:58,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:19:58,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:19:58,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1414668329, now seen corresponding path program 1 times [2024-11-08 17:19:58,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:58,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594059494] [2024-11-08 17:19:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:58,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:19:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:19:59,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:19:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594059494] [2024-11-08 17:19:59,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594059494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:19:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:19:59,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:19:59,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371004730] [2024-11-08 17:19:59,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:19:59,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:19:59,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:59,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:19:59,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:02,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:02,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 415 transitions, 2506 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:02,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:02,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:02,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:04,455 INFO L124 PetriNetUnfolderBase]: 1292/5085 cut-off events. [2024-11-08 17:20:04,456 INFO L125 PetriNetUnfolderBase]: For 6201/6350 co-relation queries the response was YES. [2024-11-08 17:20:04,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13470 conditions, 5085 events. 1292/5085 cut-off events. For 6201/6350 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 42681 event pairs, 183 based on Foata normal form. 38/5044 useless extension candidates. Maximal degree in co-relation 13182. Up to 724 conditions per place. [2024-11-08 17:20:04,544 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 79 selfloop transitions, 15 changer transitions 0/477 dead transitions. [2024-11-08 17:20:04,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 477 transitions, 2818 flow [2024-11-08 17:20:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1510 transitions. [2024-11-08 17:20:04,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.892434988179669 [2024-11-08 17:20:04,550 INFO L175 Difference]: Start difference. First operand has 272 places, 415 transitions, 2506 flow. Second operand 9 states and 1510 transitions. [2024-11-08 17:20:04,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 477 transitions, 2818 flow [2024-11-08 17:20:04,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 477 transitions, 2704 flow, removed 57 selfloop flow, removed 0 redundant places. [2024-11-08 17:20:04,777 INFO L231 Difference]: Finished difference. Result has 287 places, 429 transitions, 2506 flow [2024-11-08 17:20:04,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2392, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2506, PETRI_PLACES=287, PETRI_TRANSITIONS=429} [2024-11-08 17:20:04,779 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 102 predicate places. [2024-11-08 17:20:04,779 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 429 transitions, 2506 flow [2024-11-08 17:20:04,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:04,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:04,781 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:04,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:20:04,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:04,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1117527443, now seen corresponding path program 2 times [2024-11-08 17:20:04,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:04,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608334839] [2024-11-08 17:20:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:04,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:05,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:05,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608334839] [2024-11-08 17:20:05,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608334839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:05,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:05,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:05,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100148363] [2024-11-08 17:20:05,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:05,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:05,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:05,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:05,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:07,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:07,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 429 transitions, 2506 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:07,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:07,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:07,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:10,518 INFO L124 PetriNetUnfolderBase]: 2562/9483 cut-off events. [2024-11-08 17:20:10,518 INFO L125 PetriNetUnfolderBase]: For 12606/12926 co-relation queries the response was YES. [2024-11-08 17:20:10,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26813 conditions, 9483 events. 2562/9483 cut-off events. For 12606/12926 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 89520 event pairs, 325 based on Foata normal form. 122/9457 useless extension candidates. Maximal degree in co-relation 26517. Up to 1468 conditions per place. [2024-11-08 17:20:10,686 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 125 selfloop transitions, 20 changer transitions 4/532 dead transitions. [2024-11-08 17:20:10,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 532 transitions, 3252 flow [2024-11-08 17:20:10,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:10,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1518 transitions. [2024-11-08 17:20:10,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8971631205673759 [2024-11-08 17:20:10,691 INFO L175 Difference]: Start difference. First operand has 287 places, 429 transitions, 2506 flow. Second operand 9 states and 1518 transitions. [2024-11-08 17:20:10,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 532 transitions, 3252 flow [2024-11-08 17:20:10,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 532 transitions, 3242 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:20:10,796 INFO L231 Difference]: Finished difference. Result has 301 places, 446 transitions, 2687 flow [2024-11-08 17:20:10,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2504, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2687, PETRI_PLACES=301, PETRI_TRANSITIONS=446} [2024-11-08 17:20:10,797 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 116 predicate places. [2024-11-08 17:20:10,797 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 446 transitions, 2687 flow [2024-11-08 17:20:10,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:10,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:10,799 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:10,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:20:10,799 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:10,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:10,800 INFO L85 PathProgramCache]: Analyzing trace with hash -136023055, now seen corresponding path program 3 times [2024-11-08 17:20:10,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:10,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680640056] [2024-11-08 17:20:10,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:10,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680640056] [2024-11-08 17:20:11,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680640056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:11,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:11,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:11,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525058727] [2024-11-08 17:20:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:11,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:11,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:11,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:13,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:13,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 446 transitions, 2687 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:13,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:13,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:13,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:17,355 INFO L124 PetriNetUnfolderBase]: 2861/10659 cut-off events. [2024-11-08 17:20:17,355 INFO L125 PetriNetUnfolderBase]: For 16359/16820 co-relation queries the response was YES. [2024-11-08 17:20:17,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31372 conditions, 10659 events. 2861/10659 cut-off events. For 16359/16820 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 102191 event pairs, 321 based on Foata normal form. 107/10585 useless extension candidates. Maximal degree in co-relation 31068. Up to 1565 conditions per place. [2024-11-08 17:20:17,500 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 128 selfloop transitions, 22 changer transitions 0/533 dead transitions. [2024-11-08 17:20:17,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 533 transitions, 3503 flow [2024-11-08 17:20:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1513 transitions. [2024-11-08 17:20:17,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8942080378250591 [2024-11-08 17:20:17,504 INFO L175 Difference]: Start difference. First operand has 301 places, 446 transitions, 2687 flow. Second operand 9 states and 1513 transitions. [2024-11-08 17:20:17,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 533 transitions, 3503 flow [2024-11-08 17:20:17,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 533 transitions, 3457 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-11-08 17:20:17,628 INFO L231 Difference]: Finished difference. Result has 314 places, 458 transitions, 2854 flow [2024-11-08 17:20:17,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2671, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2854, PETRI_PLACES=314, PETRI_TRANSITIONS=458} [2024-11-08 17:20:17,631 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 129 predicate places. [2024-11-08 17:20:17,632 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 458 transitions, 2854 flow [2024-11-08 17:20:17,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:17,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:17,633 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:17,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:20:17,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:17,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:17,634 INFO L85 PathProgramCache]: Analyzing trace with hash 667772861, now seen corresponding path program 4 times [2024-11-08 17:20:17,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:17,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620955529] [2024-11-08 17:20:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:17,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:18,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:18,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620955529] [2024-11-08 17:20:18,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620955529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:18,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:18,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534132128] [2024-11-08 17:20:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:18,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:18,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:20,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:20,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 458 transitions, 2854 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:20,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:20,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:20,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:24,245 INFO L124 PetriNetUnfolderBase]: 3156/11531 cut-off events. [2024-11-08 17:20:24,245 INFO L125 PetriNetUnfolderBase]: For 20066/20532 co-relation queries the response was YES. [2024-11-08 17:20:24,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35058 conditions, 11531 events. 3156/11531 cut-off events. For 20066/20532 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 111492 event pairs, 346 based on Foata normal form. 121/11487 useless extension candidates. Maximal degree in co-relation 34748. Up to 1841 conditions per place. [2024-11-08 17:20:24,455 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 143 selfloop transitions, 27 changer transitions 4/557 dead transitions. [2024-11-08 17:20:24,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 557 transitions, 3861 flow [2024-11-08 17:20:24,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1519 transitions. [2024-11-08 17:20:24,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977541371158393 [2024-11-08 17:20:24,458 INFO L175 Difference]: Start difference. First operand has 314 places, 458 transitions, 2854 flow. Second operand 9 states and 1519 transitions. [2024-11-08 17:20:24,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 557 transitions, 3861 flow [2024-11-08 17:20:24,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 557 transitions, 3782 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-08 17:20:24,628 INFO L231 Difference]: Finished difference. Result has 324 places, 470 transitions, 3033 flow [2024-11-08 17:20:24,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2828, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3033, PETRI_PLACES=324, PETRI_TRANSITIONS=470} [2024-11-08 17:20:24,631 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 139 predicate places. [2024-11-08 17:20:24,631 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 470 transitions, 3033 flow [2024-11-08 17:20:24,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:24,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:24,634 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:24,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:20:24,634 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:24,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:24,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1224364991, now seen corresponding path program 5 times [2024-11-08 17:20:24,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:24,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814843692] [2024-11-08 17:20:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:24,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:25,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:25,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814843692] [2024-11-08 17:20:25,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814843692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:25,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:25,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:25,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175020865] [2024-11-08 17:20:25,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:25,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:25,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:27,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:27,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 470 transitions, 3033 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:27,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:27,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:27,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:31,519 INFO L124 PetriNetUnfolderBase]: 3490/12857 cut-off events. [2024-11-08 17:20:31,520 INFO L125 PetriNetUnfolderBase]: For 25127/25712 co-relation queries the response was YES. [2024-11-08 17:20:31,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39719 conditions, 12857 events. 3490/12857 cut-off events. For 25127/25712 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 127291 event pairs, 360 based on Foata normal form. 114/12769 useless extension candidates. Maximal degree in co-relation 39404. Up to 1957 conditions per place. [2024-11-08 17:20:31,749 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 141 selfloop transitions, 29 changer transitions 0/553 dead transitions. [2024-11-08 17:20:31,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 553 transitions, 4032 flow [2024-11-08 17:20:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1515 transitions. [2024-11-08 17:20:31,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8953900709219859 [2024-11-08 17:20:31,758 INFO L175 Difference]: Start difference. First operand has 324 places, 470 transitions, 3033 flow. Second operand 9 states and 1515 transitions. [2024-11-08 17:20:31,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 553 transitions, 4032 flow [2024-11-08 17:20:31,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 553 transitions, 3941 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-08 17:20:31,993 INFO L231 Difference]: Finished difference. Result has 335 places, 485 transitions, 3271 flow [2024-11-08 17:20:31,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=2992, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3271, PETRI_PLACES=335, PETRI_TRANSITIONS=485} [2024-11-08 17:20:31,996 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 150 predicate places. [2024-11-08 17:20:31,996 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 485 transitions, 3271 flow [2024-11-08 17:20:31,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:31,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:31,998 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:31,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:20:31,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:31,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1358162677, now seen corresponding path program 6 times [2024-11-08 17:20:31,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:32,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277029538] [2024-11-08 17:20:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:32,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:32,948 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:32,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:32,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277029538] [2024-11-08 17:20:32,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277029538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:32,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:32,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656097005] [2024-11-08 17:20:32,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:32,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:32,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:32,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:35,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:35,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 485 transitions, 3271 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:35,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:35,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:35,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:39,369 INFO L124 PetriNetUnfolderBase]: 3809/13883 cut-off events. [2024-11-08 17:20:39,369 INFO L125 PetriNetUnfolderBase]: For 31243/31846 co-relation queries the response was YES. [2024-11-08 17:20:39,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44232 conditions, 13883 events. 3809/13883 cut-off events. For 31243/31846 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 139523 event pairs, 381 based on Foata normal form. 122/13820 useless extension candidates. Maximal degree in co-relation 43911. Up to 2227 conditions per place. [2024-11-08 17:20:39,628 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 158 selfloop transitions, 34 changer transitions 2/577 dead transitions. [2024-11-08 17:20:39,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 577 transitions, 4438 flow [2024-11-08 17:20:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:39,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1519 transitions. [2024-11-08 17:20:39,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977541371158393 [2024-11-08 17:20:39,638 INFO L175 Difference]: Start difference. First operand has 335 places, 485 transitions, 3271 flow. Second operand 9 states and 1519 transitions. [2024-11-08 17:20:39,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 577 transitions, 4438 flow [2024-11-08 17:20:39,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 577 transitions, 4342 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-08 17:20:39,946 INFO L231 Difference]: Finished difference. Result has 347 places, 500 transitions, 3518 flow [2024-11-08 17:20:39,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=3212, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3518, PETRI_PLACES=347, PETRI_TRANSITIONS=500} [2024-11-08 17:20:39,948 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 162 predicate places. [2024-11-08 17:20:39,948 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 500 transitions, 3518 flow [2024-11-08 17:20:39,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:39,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:39,950 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:39,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:20:39,950 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:39,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:39,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1366305161, now seen corresponding path program 7 times [2024-11-08 17:20:39,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:39,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508498754] [2024-11-08 17:20:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:39,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:40,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:40,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508498754] [2024-11-08 17:20:40,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508498754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:40,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:40,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:40,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544261282] [2024-11-08 17:20:40,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:40,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:40,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:40,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:42,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:42,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 500 transitions, 3518 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:42,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:42,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:42,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:47,599 INFO L124 PetriNetUnfolderBase]: 4153/15222 cut-off events. [2024-11-08 17:20:47,599 INFO L125 PetriNetUnfolderBase]: For 39614/40293 co-relation queries the response was YES. [2024-11-08 17:20:47,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49563 conditions, 15222 events. 4153/15222 cut-off events. For 39614/40293 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 156366 event pairs, 464 based on Foata normal form. 111/15106 useless extension candidates. Maximal degree in co-relation 49236. Up to 2361 conditions per place. [2024-11-08 17:20:47,863 INFO L140 encePairwiseOnDemand]: 174/188 looper letters, 153 selfloop transitions, 36 changer transitions 0/572 dead transitions. [2024-11-08 17:20:47,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 572 transitions, 4630 flow [2024-11-08 17:20:47,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:47,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:47,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1516 transitions. [2024-11-08 17:20:47,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8959810874704491 [2024-11-08 17:20:47,867 INFO L175 Difference]: Start difference. First operand has 347 places, 500 transitions, 3518 flow. Second operand 9 states and 1516 transitions. [2024-11-08 17:20:47,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 572 transitions, 4630 flow [2024-11-08 17:20:48,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 572 transitions, 4530 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-08 17:20:48,166 INFO L231 Difference]: Finished difference. Result has 360 places, 519 transitions, 3869 flow [2024-11-08 17:20:48,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=3440, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3869, PETRI_PLACES=360, PETRI_TRANSITIONS=519} [2024-11-08 17:20:48,168 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 175 predicate places. [2024-11-08 17:20:48,168 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 519 transitions, 3869 flow [2024-11-08 17:20:48,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:48,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:48,170 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:48,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:20:48,171 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:48,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:48,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2070333277, now seen corresponding path program 8 times [2024-11-08 17:20:48,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:48,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26655223] [2024-11-08 17:20:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:49,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:49,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26655223] [2024-11-08 17:20:49,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26655223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:49,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:49,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:49,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074254381] [2024-11-08 17:20:49,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:49,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:50,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:50,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 519 transitions, 3869 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:50,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:50,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:50,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:20:57,312 INFO L124 PetriNetUnfolderBase]: 4755/17129 cut-off events. [2024-11-08 17:20:57,312 INFO L125 PetriNetUnfolderBase]: For 50818/51644 co-relation queries the response was YES. [2024-11-08 17:20:57,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57404 conditions, 17129 events. 4755/17129 cut-off events. For 50818/51644 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 180878 event pairs, 474 based on Foata normal form. 140/17048 useless extension candidates. Maximal degree in co-relation 57070. Up to 2778 conditions per place. [2024-11-08 17:20:57,598 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 176 selfloop transitions, 45 changer transitions 0/604 dead transitions. [2024-11-08 17:20:57,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 604 transitions, 5196 flow [2024-11-08 17:20:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:20:57,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:20:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1520 transitions. [2024-11-08 17:20:57,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8983451536643026 [2024-11-08 17:20:57,601 INFO L175 Difference]: Start difference. First operand has 360 places, 519 transitions, 3869 flow. Second operand 9 states and 1520 transitions. [2024-11-08 17:20:57,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 604 transitions, 5196 flow [2024-11-08 17:20:57,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 604 transitions, 5092 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-08 17:20:57,905 INFO L231 Difference]: Finished difference. Result has 375 places, 537 transitions, 4223 flow [2024-11-08 17:20:57,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=3765, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4223, PETRI_PLACES=375, PETRI_TRANSITIONS=537} [2024-11-08 17:20:57,906 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 190 predicate places. [2024-11-08 17:20:57,907 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 537 transitions, 4223 flow [2024-11-08 17:20:57,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:57,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:20:57,908 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:20:57,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:20:57,908 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:20:57,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:20:57,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1889147415, now seen corresponding path program 9 times [2024-11-08 17:20:57,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:20:57,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072634752] [2024-11-08 17:20:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:20:57,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:20:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:20:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:20:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:20:58,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072634752] [2024-11-08 17:20:58,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072634752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:20:58,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:20:58,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:20:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573018468] [2024-11-08 17:20:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:20:58,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:20:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:20:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:20:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:20:59,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:20:59,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 537 transitions, 4223 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:20:59,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:20:59,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:20:59,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:21:05,008 INFO L124 PetriNetUnfolderBase]: 5342/19300 cut-off events. [2024-11-08 17:21:05,008 INFO L125 PetriNetUnfolderBase]: For 62475/63425 co-relation queries the response was YES. [2024-11-08 17:21:05,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65773 conditions, 19300 events. 5342/19300 cut-off events. For 62475/63425 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 210225 event pairs, 543 based on Foata normal form. 158/19214 useless extension candidates. Maximal degree in co-relation 65431. Up to 3106 conditions per place. [2024-11-08 17:21:05,368 INFO L140 encePairwiseOnDemand]: 173/188 looper letters, 189 selfloop transitions, 46 changer transitions 0/618 dead transitions. [2024-11-08 17:21:05,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 618 transitions, 5496 flow [2024-11-08 17:21:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:21:05,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:21:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1518 transitions. [2024-11-08 17:21:05,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8971631205673759 [2024-11-08 17:21:05,372 INFO L175 Difference]: Start difference. First operand has 375 places, 537 transitions, 4223 flow. Second operand 9 states and 1518 transitions. [2024-11-08 17:21:05,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 618 transitions, 5496 flow [2024-11-08 17:21:05,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 618 transitions, 5410 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-08 17:21:05,794 INFO L231 Difference]: Finished difference. Result has 389 places, 554 transitions, 4547 flow [2024-11-08 17:21:05,794 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=4137, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4547, PETRI_PLACES=389, PETRI_TRANSITIONS=554} [2024-11-08 17:21:05,795 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 204 predicate places. [2024-11-08 17:21:05,795 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 554 transitions, 4547 flow [2024-11-08 17:21:05,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:21:05,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:21:05,796 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:21:05,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:21:05,796 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:21:05,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:21:05,796 INFO L85 PathProgramCache]: Analyzing trace with hash 952536047, now seen corresponding path program 10 times [2024-11-08 17:21:05,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:21:05,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139751565] [2024-11-08 17:21:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:21:05,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:21:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:21:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:21:06,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:21:06,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139751565] [2024-11-08 17:21:06,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139751565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:21:06,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:21:06,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:21:06,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884323613] [2024-11-08 17:21:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:21:06,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:21:06,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:21:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:21:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:21:07,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:21:07,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 554 transitions, 4547 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:21:07,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:21:07,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:21:07,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:21:14,985 INFO L124 PetriNetUnfolderBase]: 5630/20201 cut-off events. [2024-11-08 17:21:14,985 INFO L125 PetriNetUnfolderBase]: For 70811/71855 co-relation queries the response was YES. [2024-11-08 17:21:15,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69883 conditions, 20201 events. 5630/20201 cut-off events. For 70811/71855 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 222433 event pairs, 558 based on Foata normal form. 175/20119 useless extension candidates. Maximal degree in co-relation 69534. Up to 3286 conditions per place. [2024-11-08 17:21:15,352 INFO L140 encePairwiseOnDemand]: 172/188 looper letters, 188 selfloop transitions, 53 changer transitions 0/624 dead transitions. [2024-11-08 17:21:15,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 624 transitions, 5863 flow [2024-11-08 17:21:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:21:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:21:15,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1520 transitions. [2024-11-08 17:21:15,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8983451536643026 [2024-11-08 17:21:15,357 INFO L175 Difference]: Start difference. First operand has 389 places, 554 transitions, 4547 flow. Second operand 9 states and 1520 transitions. [2024-11-08 17:21:15,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 624 transitions, 5863 flow [2024-11-08 17:21:15,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 624 transitions, 5710 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-08 17:21:15,813 INFO L231 Difference]: Finished difference. Result has 399 places, 568 transitions, 4826 flow [2024-11-08 17:21:15,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=4450, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4826, PETRI_PLACES=399, PETRI_TRANSITIONS=568} [2024-11-08 17:21:15,814 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 214 predicate places. [2024-11-08 17:21:15,815 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 568 transitions, 4826 flow [2024-11-08 17:21:15,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:21:15,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:21:15,816 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:21:15,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:21:15,816 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:21:15,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:21:15,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2134862499, now seen corresponding path program 11 times [2024-11-08 17:21:15,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:21:15,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834973205] [2024-11-08 17:21:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:21:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:21:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:21:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:21:16,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:21:16,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834973205] [2024-11-08 17:21:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834973205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:21:16,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:21:16,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:21:16,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924173561] [2024-11-08 17:21:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:21:16,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:21:16,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:21:16,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:21:16,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:21:18,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 188 [2024-11-08 17:21:18,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 568 transitions, 4826 flow. Second operand has 9 states, 9 states have (on average 158.77777777777777) internal successors, (1429), 9 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:21:18,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:21:18,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 188 [2024-11-08 17:21:18,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand