./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1 --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:46:15,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:46:15,131 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 15:46:15,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:46:15,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:46:15,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:46:15,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:46:15,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:46:15,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:46:15,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:46:15,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:46:15,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:46:15,160 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:46:15,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:46:15,161 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:46:15,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:46:15,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:46:15,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:46:15,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:46:15,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:46:15,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:46:15,164 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1 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 -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-12-02 15:46:15,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:46:15,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:46:15,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:46:15,412 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:46:15,412 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:46:15,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-12-02 15:46:18,046 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/data/7bd2383fd/db1f652fb75c465186cdc39d36764bf4/FLAGf4c3ad009 [2024-12-02 15:46:18,328 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:46:18,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-12-02 15:46:18,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/data/7bd2383fd/db1f652fb75c465186cdc39d36764bf4/FLAGf4c3ad009 [2024-12-02 15:46:18,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/data/7bd2383fd/db1f652fb75c465186cdc39d36764bf4 [2024-12-02 15:46:18,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:46:18,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:46:18,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:46:18,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:46:18,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:46:18,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:46:18" (1/1) ... [2024-12-02 15:46:18,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35005001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:18, skipping insertion in model container [2024-12-02 15:46:18,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:46:18" (1/1) ... [2024-12-02 15:46:18,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:46:18,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:46:18,977 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:46:19,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:46:19,072 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:46:19,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19 WrapperNode [2024-12-02 15:46:19,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:46:19,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:46:19,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:46:19,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:46:19,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,108 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-12-02 15:46:19,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:46:19,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:46:19,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:46:19,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:46:19,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,128 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:46:19,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:46:19,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:46:19,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:46:19,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (1/1) ... [2024-12-02 15:46:19,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:46:19,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:46:19,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:46:19,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 15:46:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 15:46:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:46:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:46:19,195 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 15:46:19,308 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:46:19,310 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:46:19,607 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:46:19,608 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:46:19,631 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:46:19,631 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 15:46:19,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:46:19 BoogieIcfgContainer [2024-12-02 15:46:19,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:46:19,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:46:19,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:46:19,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:46:19,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:46:18" (1/3) ... [2024-12-02 15:46:19,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0847ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:46:19, skipping insertion in model container [2024-12-02 15:46:19,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:19" (2/3) ... [2024-12-02 15:46:19,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0847ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:46:19, skipping insertion in model container [2024-12-02 15:46:19,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:46:19" (3/3) ... [2024-12-02 15:46:19,642 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-12-02 15:46:19,658 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:46:19,659 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_08-tricky_address3.i that has 2 procedures, 161 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-12-02 15:46:19,659 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:46:19,736 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 15:46:19,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 164 transitions, 332 flow [2024-12-02 15:46:19,839 INFO L124 PetriNetUnfolderBase]: 4/163 cut-off events. [2024-12-02 15:46:19,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:46:19,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 163 events. 4/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-12-02 15:46:19,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 164 transitions, 332 flow [2024-12-02 15:46:19,851 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 329 flow [2024-12-02 15:46:19,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:46:19,870 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;@4afbaa54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:46:19,870 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-12-02 15:46:19,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:46:19,896 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-12-02 15:46:19,896 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 15:46:19,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:19,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:19,898 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:19,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:19,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1019482477, now seen corresponding path program 1 times [2024-12-02 15:46:19,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:19,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557562342] [2024-12-02 15:46:19,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:19,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:20,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:20,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557562342] [2024-12-02 15:46:20,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557562342] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:20,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:20,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:46:20,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810166448] [2024-12-02 15:46:20,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:20,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:46:20,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:20,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:46:20,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:46:20,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 164 [2024-12-02 15:46:20,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-12-02 15:46:20,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:20,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 164 [2024-12-02 15:46:20,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:20,354 INFO L124 PetriNetUnfolderBase]: 7/224 cut-off events. [2024-12-02 15:46:20,354 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:46:20,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 7/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 332 event pairs, 6 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-12-02 15:46:20,357 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 10 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-12-02 15:46:20,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 349 flow [2024-12-02 15:46:20,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:46:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:46:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-12-02 15:46:20,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9491869918699187 [2024-12-02 15:46:20,373 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 329 flow. Second operand 3 states and 467 transitions. [2024-12-02 15:46:20,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 349 flow [2024-12-02 15:46:20,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:46:20,382 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2024-12-02 15:46:20,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-12-02 15:46:20,388 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2024-12-02 15:46:20,388 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2024-12-02 15:46:20,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-12-02 15:46:20,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:20,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:20,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:46:20,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:20,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:20,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2013546856, now seen corresponding path program 1 times [2024-12-02 15:46:20,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:20,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251055308] [2024-12-02 15:46:20,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:20,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:20,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251055308] [2024-12-02 15:46:20,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251055308] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:46:20,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290761282] [2024-12-02 15:46:20,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:20,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:46:20,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:46:20,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:46:20,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:46:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:20,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:46:20,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:20,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:46:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:20,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290761282] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:46:20,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:46:20,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 15:46:20,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141997402] [2024-12-02 15:46:20,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:46:20,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:46:20,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:20,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:46:20,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:46:20,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-12-02 15:46:20,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2024-12-02 15:46:20,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:20,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-12-02 15:46:20,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:20,945 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-12-02 15:46:20,945 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:46:20,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 230 events. 7/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 325 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-12-02 15:46:20,946 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 14 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2024-12-02 15:46:20,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 396 flow [2024-12-02 15:46:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:46:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 15:46:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2024-12-02 15:46:20,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-12-02 15:46:20,951 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 9 states and 1348 transitions. [2024-12-02 15:46:20,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 396 flow [2024-12-02 15:46:20,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 15:46:20,954 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2024-12-02 15:46:20,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2024-12-02 15:46:20,955 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 11 predicate places. [2024-12-02 15:46:20,955 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2024-12-02 15:46:20,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2024-12-02 15:46:20,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:20,956 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1] [2024-12-02 15:46:20,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:46:21,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:46:21,157 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:21,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:21,158 INFO L85 PathProgramCache]: Analyzing trace with hash 360812680, now seen corresponding path program 2 times [2024-12-02 15:46:21,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:21,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422178938] [2024-12-02 15:46:21,158 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:46:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:21,185 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:46:21,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:46:21,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422178938] [2024-12-02 15:46:21,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422178938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:21,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:21,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:46:21,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143748105] [2024-12-02 15:46:21,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:21,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:46:21,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:21,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:46:21,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:46:22,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 164 [2024-12-02 15:46:22,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2024-12-02 15:46:22,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:22,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 164 [2024-12-02 15:46:22,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:22,523 INFO L124 PetriNetUnfolderBase]: 103/535 cut-off events. [2024-12-02 15:46:22,523 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-12-02 15:46:22,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 535 events. 103/535 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2279 event pairs, 40 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 688. Up to 184 conditions per place. [2024-12-02 15:46:22,526 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 31 selfloop transitions, 22 changer transitions 0/195 dead transitions. [2024-12-02 15:46:22,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 195 transitions, 544 flow [2024-12-02 15:46:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:46:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:46:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2024-12-02 15:46:22,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8902439024390244 [2024-12-02 15:46:22,530 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 876 transitions. [2024-12-02 15:46:22,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 195 transitions, 544 flow [2024-12-02 15:46:22,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 195 transitions, 538 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 15:46:22,535 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 524 flow [2024-12-02 15:46:22,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2024-12-02 15:46:22,535 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 20 predicate places. [2024-12-02 15:46:22,536 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 524 flow [2024-12-02 15:46:22,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2024-12-02 15:46:22,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:22,536 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:22,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:46:22,537 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:22,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 304852855, now seen corresponding path program 1 times [2024-12-02 15:46:22,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:22,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648925060] [2024-12-02 15:46:22,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:22,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:22,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648925060] [2024-12-02 15:46:22,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648925060] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:46:22,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820573459] [2024-12-02 15:46:22,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:22,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:46:22,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:46:22,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:46:22,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:46:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:22,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:46:22,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:22,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:46:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:22,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820573459] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:46:22,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:46:22,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-02 15:46:22,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513537606] [2024-12-02 15:46:22,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:46:22,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 15:46:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:22,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 15:46:22,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:46:23,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-12-02 15:46:23,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 524 flow. Second operand has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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) [2024-12-02 15:46:23,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:23,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-12-02 15:46:23,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:23,234 INFO L124 PetriNetUnfolderBase]: 35/396 cut-off events. [2024-12-02 15:46:23,234 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2024-12-02 15:46:23,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 396 events. 35/396 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1163 event pairs, 11 based on Foata normal form. 4/384 useless extension candidates. Maximal degree in co-relation 479. Up to 51 conditions per place. [2024-12-02 15:46:23,237 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 18 selfloop transitions, 21 changer transitions 0/205 dead transitions. [2024-12-02 15:46:23,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 205 transitions, 690 flow [2024-12-02 15:46:23,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:46:23,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 15:46:23,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3130 transitions. [2024-12-02 15:46:23,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088269454123112 [2024-12-02 15:46:23,242 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 524 flow. Second operand 21 states and 3130 transitions. [2024-12-02 15:46:23,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 205 transitions, 690 flow [2024-12-02 15:46:23,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 205 transitions, 690 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 15:46:23,247 INFO L231 Difference]: Finished difference. Result has 208 places, 200 transitions, 654 flow [2024-12-02 15:46:23,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=654, PETRI_PLACES=208, PETRI_TRANSITIONS=200} [2024-12-02 15:46:23,248 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 45 predicate places. [2024-12-02 15:46:23,248 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 200 transitions, 654 flow [2024-12-02 15:46:23,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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) [2024-12-02 15:46:23,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:23,250 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1] [2024-12-02 15:46:23,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 15:46:23,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:46:23,450 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:23,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 590005687, now seen corresponding path program 2 times [2024-12-02 15:46:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709955598] [2024-12-02 15:46:23,451 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:46:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:23,472 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:46:23,472 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 15:46:23,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:23,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709955598] [2024-12-02 15:46:23,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709955598] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:23,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:23,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:46:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902544411] [2024-12-02 15:46:23,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:23,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:46:23,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:23,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:46:23,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:46:24,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-12-02 15:46:24,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 200 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2024-12-02 15:46:24,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:24,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-12-02 15:46:24,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:24,595 INFO L124 PetriNetUnfolderBase]: 223/897 cut-off events. [2024-12-02 15:46:24,595 INFO L125 PetriNetUnfolderBase]: For 186/192 co-relation queries the response was YES. [2024-12-02 15:46:24,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 897 events. 223/897 cut-off events. For 186/192 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4710 event pairs, 82 based on Foata normal form. 5/843 useless extension candidates. Maximal degree in co-relation 1571. Up to 407 conditions per place. [2024-12-02 15:46:24,601 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 53 selfloop transitions, 39 changer transitions 5/245 dead transitions. [2024-12-02 15:46:24,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 245 transitions, 968 flow [2024-12-02 15:46:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:46:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:46:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2024-12-02 15:46:24,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8760162601626016 [2024-12-02 15:46:24,604 INFO L175 Difference]: Start difference. First operand has 208 places, 200 transitions, 654 flow. Second operand 6 states and 862 transitions. [2024-12-02 15:46:24,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 245 transitions, 968 flow [2024-12-02 15:46:24,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 944 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-02 15:46:24,611 INFO L231 Difference]: Finished difference. Result has 212 places, 236 transitions, 918 flow [2024-12-02 15:46:24,612 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=212, PETRI_TRANSITIONS=236} [2024-12-02 15:46:24,612 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 49 predicate places. [2024-12-02 15:46:24,612 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 236 transitions, 918 flow [2024-12-02 15:46:24,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2024-12-02 15:46:24,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:24,613 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:24,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:46:24,614 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:24,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash -372626708, now seen corresponding path program 1 times [2024-12-02 15:46:24,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:24,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108048199] [2024-12-02 15:46:24,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:24,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:24,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:24,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108048199] [2024-12-02 15:46:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108048199] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:46:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948261529] [2024-12-02 15:46:24,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:24,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:46:24,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:46:24,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:46:24,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:46:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:25,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 15:46:25,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:25,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:46:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:46:25,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948261529] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:46:25,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:46:25,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-02 15:46:25,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693451551] [2024-12-02 15:46:25,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:46:25,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 15:46:25,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:25,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 15:46:25,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-02 15:46:25,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-12-02 15:46:25,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 236 transitions, 918 flow. Second operand has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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) [2024-12-02 15:46:25,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:25,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-12-02 15:46:25,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:25,832 INFO L124 PetriNetUnfolderBase]: 123/670 cut-off events. [2024-12-02 15:46:25,832 INFO L125 PetriNetUnfolderBase]: For 316/321 co-relation queries the response was YES. [2024-12-02 15:46:25,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 670 events. 123/670 cut-off events. For 316/321 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2917 event pairs, 15 based on Foata normal form. 3/645 useless extension candidates. Maximal degree in co-relation 1138. Up to 118 conditions per place. [2024-12-02 15:46:25,836 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 21 selfloop transitions, 30 changer transitions 0/253 dead transitions. [2024-12-02 15:46:25,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 253 transitions, 1142 flow [2024-12-02 15:46:25,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 15:46:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-02 15:46:25,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4464 transitions. [2024-12-02 15:46:25,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2024-12-02 15:46:25,845 INFO L175 Difference]: Start difference. First operand has 212 places, 236 transitions, 918 flow. Second operand 30 states and 4464 transitions. [2024-12-02 15:46:25,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 253 transitions, 1142 flow [2024-12-02 15:46:25,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 253 transitions, 1110 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-12-02 15:46:25,854 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 1038 flow [2024-12-02 15:46:25,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1038, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-12-02 15:46:25,855 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 81 predicate places. [2024-12-02 15:46:25,855 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 1038 flow [2024-12-02 15:46:25,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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) [2024-12-02 15:46:25,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:25,857 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-12-02 15:46:25,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:46:26,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 15:46:26,057 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:26,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:26,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1418663929, now seen corresponding path program 2 times [2024-12-02 15:46:26,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:26,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316446043] [2024-12-02 15:46:26,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:46:26,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:26,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:46:26,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 15:46:26,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316446043] [2024-12-02 15:46:26,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316446043] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:26,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:46:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390931559] [2024-12-02 15:46:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:26,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:46:26,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:26,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:46:26,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:46:26,521 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 164 [2024-12-02 15:46:26,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2024-12-02 15:46:26,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:26,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 164 [2024-12-02 15:46:26,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:26,756 INFO L124 PetriNetUnfolderBase]: 212/934 cut-off events. [2024-12-02 15:46:26,756 INFO L125 PetriNetUnfolderBase]: For 573/624 co-relation queries the response was YES. [2024-12-02 15:46:26,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 934 events. 212/934 cut-off events. For 573/624 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4943 event pairs, 40 based on Foata normal form. 3/919 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2024-12-02 15:46:26,760 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 72 selfloop transitions, 40 changer transitions 0/285 dead transitions. [2024-12-02 15:46:26,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 1446 flow [2024-12-02 15:46:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:46:26,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:46:26,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2024-12-02 15:46:26,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9054878048780488 [2024-12-02 15:46:26,762 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 1038 flow. Second operand 6 states and 891 transitions. [2024-12-02 15:46:26,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 285 transitions, 1446 flow [2024-12-02 15:46:26,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 285 transitions, 1400 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-02 15:46:26,769 INFO L231 Difference]: Finished difference. Result has 236 places, 277 transitions, 1360 flow [2024-12-02 15:46:26,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=236, PETRI_TRANSITIONS=277} [2024-12-02 15:46:26,770 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 73 predicate places. [2024-12-02 15:46:26,770 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 277 transitions, 1360 flow [2024-12-02 15:46:26,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2024-12-02 15:46:26,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:26,771 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1] [2024-12-02 15:46:26,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:46:26,771 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:26,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash -964580980, now seen corresponding path program 1 times [2024-12-02 15:46:26,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:26,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674844114] [2024-12-02 15:46:26,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 15:46:27,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:27,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674844114] [2024-12-02 15:46:27,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674844114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:27,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:27,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:46:27,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226043949] [2024-12-02 15:46:27,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:27,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:46:27,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:27,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:46:27,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:46:27,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 164 [2024-12-02 15:46:27,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 277 transitions, 1360 flow. Second operand has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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) [2024-12-02 15:46:27,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:27,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 164 [2024-12-02 15:46:27,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:27,568 INFO L124 PetriNetUnfolderBase]: 361/1334 cut-off events. [2024-12-02 15:46:27,568 INFO L125 PetriNetUnfolderBase]: For 1451/1495 co-relation queries the response was YES. [2024-12-02 15:46:27,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1334 events. 361/1334 cut-off events. For 1451/1495 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7928 event pairs, 87 based on Foata normal form. 2/1300 useless extension candidates. Maximal degree in co-relation 3413. Up to 610 conditions per place. [2024-12-02 15:46:27,577 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 100 selfloop transitions, 64 changer transitions 10/338 dead transitions. [2024-12-02 15:46:27,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 338 transitions, 2048 flow [2024-12-02 15:46:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:46:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 15:46:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2024-12-02 15:46:27,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.891260162601626 [2024-12-02 15:46:27,580 INFO L175 Difference]: Start difference. First operand has 236 places, 277 transitions, 1360 flow. Second operand 6 states and 877 transitions. [2024-12-02 15:46:27,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 338 transitions, 2048 flow [2024-12-02 15:46:27,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 338 transitions, 2030 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-12-02 15:46:27,599 INFO L231 Difference]: Finished difference. Result has 246 places, 324 transitions, 1928 flow [2024-12-02 15:46:27,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1928, PETRI_PLACES=246, PETRI_TRANSITIONS=324} [2024-12-02 15:46:27,600 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 83 predicate places. [2024-12-02 15:46:27,600 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 324 transitions, 1928 flow [2024-12-02 15:46:27,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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) [2024-12-02 15:46:27,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:27,601 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:27,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:46:27,601 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:27,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash -343254701, now seen corresponding path program 1 times [2024-12-02 15:46:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:27,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827759474] [2024-12-02 15:46:27,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 15:46:35,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827759474] [2024-12-02 15:46:35,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827759474] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:35,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:35,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 15:46:35,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696232554] [2024-12-02 15:46:35,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:35,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 15:46:35,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:35,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 15:46:35,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:46:37,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-12-02 15:46:38,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 324 transitions, 1928 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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) [2024-12-02 15:46:38,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:38,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-12-02 15:46:38,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:39,419 INFO L124 PetriNetUnfolderBase]: 461/1620 cut-off events. [2024-12-02 15:46:39,419 INFO L125 PetriNetUnfolderBase]: For 3067/3191 co-relation queries the response was YES. [2024-12-02 15:46:39,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 1620 events. 461/1620 cut-off events. For 3067/3191 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10153 event pairs, 19 based on Foata normal form. 50/1654 useless extension candidates. Maximal degree in co-relation 4950. Up to 562 conditions per place. [2024-12-02 15:46:39,427 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 190 selfloop transitions, 84 changer transitions 47/474 dead transitions. [2024-12-02 15:46:39,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 474 transitions, 3660 flow [2024-12-02 15:46:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 15:46:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 15:46:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2352 transitions. [2024-12-02 15:46:39,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7967479674796748 [2024-12-02 15:46:39,431 INFO L175 Difference]: Start difference. First operand has 246 places, 324 transitions, 1928 flow. Second operand 18 states and 2352 transitions. [2024-12-02 15:46:39,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 474 transitions, 3660 flow [2024-12-02 15:46:39,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 474 transitions, 3574 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-12-02 15:46:39,451 INFO L231 Difference]: Finished difference. Result has 271 places, 361 transitions, 2488 flow [2024-12-02 15:46:39,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1854, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2488, PETRI_PLACES=271, PETRI_TRANSITIONS=361} [2024-12-02 15:46:39,453 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 108 predicate places. [2024-12-02 15:46:39,453 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 361 transitions, 2488 flow [2024-12-02 15:46:39,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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) [2024-12-02 15:46:39,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:39,454 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:39,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:46:39,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:39,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1925605875, now seen corresponding path program 2 times [2024-12-02 15:46:39,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:39,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830226365] [2024-12-02 15:46:39,455 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:46:39,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:39,476 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:46:39,477 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 15:46:40,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:40,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830226365] [2024-12-02 15:46:40,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830226365] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:40,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:40,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:40,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258748034] [2024-12-02 15:46:40,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:40,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:46:40,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:40,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:46:40,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:46:41,109 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:46:41,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 361 transitions, 2488 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:46:41,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:41,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:46:41,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:41,734 INFO L124 PetriNetUnfolderBase]: 456/1589 cut-off events. [2024-12-02 15:46:41,734 INFO L125 PetriNetUnfolderBase]: For 4558/4746 co-relation queries the response was YES. [2024-12-02 15:46:41,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5992 conditions, 1589 events. 456/1589 cut-off events. For 4558/4746 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9854 event pairs, 88 based on Foata normal form. 105/1677 useless extension candidates. Maximal degree in co-relation 5705. Up to 662 conditions per place. [2024-12-02 15:46:41,746 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 169 selfloop transitions, 83 changer transitions 20/427 dead transitions. [2024-12-02 15:46:41,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 427 transitions, 3521 flow [2024-12-02 15:46:41,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:46:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 15:46:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1261 transitions. [2024-12-02 15:46:41,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8543360433604336 [2024-12-02 15:46:41,748 INFO L175 Difference]: Start difference. First operand has 271 places, 361 transitions, 2488 flow. Second operand 9 states and 1261 transitions. [2024-12-02 15:46:41,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 427 transitions, 3521 flow [2024-12-02 15:46:41,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 427 transitions, 3481 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-12-02 15:46:41,789 INFO L231 Difference]: Finished difference. Result has 274 places, 365 transitions, 2692 flow [2024-12-02 15:46:41,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2692, PETRI_PLACES=274, PETRI_TRANSITIONS=365} [2024-12-02 15:46:41,790 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 111 predicate places. [2024-12-02 15:46:41,790 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 365 transitions, 2692 flow [2024-12-02 15:46:41,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:46:41,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:41,791 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:41,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:46:41,791 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:41,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash -831736639, now seen corresponding path program 3 times [2024-12-02 15:46:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:41,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092780896] [2024-12-02 15:46:41,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:46:41,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:41,817 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:46:41,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 15:46:42,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092780896] [2024-12-02 15:46:42,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092780896] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:42,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:42,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104576152] [2024-12-02 15:46:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:42,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:46:42,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:42,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:46:42,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:46:43,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:46:43,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 365 transitions, 2692 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:46:43,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:43,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:46:43,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:44,724 INFO L124 PetriNetUnfolderBase]: 780/2497 cut-off events. [2024-12-02 15:46:44,724 INFO L125 PetriNetUnfolderBase]: For 9716/9932 co-relation queries the response was YES. [2024-12-02 15:46:44,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10447 conditions, 2497 events. 780/2497 cut-off events. For 9716/9932 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18228 event pairs, 58 based on Foata normal form. 79/2543 useless extension candidates. Maximal degree in co-relation 10157. Up to 632 conditions per place. [2024-12-02 15:46:44,735 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 348 selfloop transitions, 95 changer transitions 12/614 dead transitions. [2024-12-02 15:46:44,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 614 transitions, 6195 flow [2024-12-02 15:46:44,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:46:44,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:46:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1542 transitions. [2024-12-02 15:46:44,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8547671840354767 [2024-12-02 15:46:44,737 INFO L175 Difference]: Start difference. First operand has 274 places, 365 transitions, 2692 flow. Second operand 11 states and 1542 transitions. [2024-12-02 15:46:44,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 614 transitions, 6195 flow [2024-12-02 15:46:44,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 614 transitions, 6045 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-12-02 15:46:44,773 INFO L231 Difference]: Finished difference. Result has 287 places, 445 transitions, 4100 flow [2024-12-02 15:46:44,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2622, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4100, PETRI_PLACES=287, PETRI_TRANSITIONS=445} [2024-12-02 15:46:44,774 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 124 predicate places. [2024-12-02 15:46:44,774 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 445 transitions, 4100 flow [2024-12-02 15:46:44,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:46:44,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:44,774 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:44,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:46:44,774 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:44,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:44,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1639123309, now seen corresponding path program 4 times [2024-12-02 15:46:44,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:44,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869196344] [2024-12-02 15:46:44,775 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:46:44,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:44,815 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:46:44,815 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-12-02 15:46:45,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869196344] [2024-12-02 15:46:45,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869196344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:45,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:45,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 15:46:45,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599697617] [2024-12-02 15:46:45,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:45,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:46:45,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:45,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:46:45,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:46:47,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-12-02 15:46:47,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 445 transitions, 4100 flow. Second operand has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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) [2024-12-02 15:46:47,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:47,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-12-02 15:46:47,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:49,105 INFO L124 PetriNetUnfolderBase]: 1242/3829 cut-off events. [2024-12-02 15:46:49,105 INFO L125 PetriNetUnfolderBase]: For 19153/19461 co-relation queries the response was YES. [2024-12-02 15:46:49,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16850 conditions, 3829 events. 1242/3829 cut-off events. For 19153/19461 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 31034 event pairs, 173 based on Foata normal form. 91/3876 useless extension candidates. Maximal degree in co-relation 16553. Up to 1434 conditions per place. [2024-12-02 15:46:49,127 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 454 selfloop transitions, 128 changer transitions 17/750 dead transitions. [2024-12-02 15:46:49,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 750 transitions, 8561 flow [2024-12-02 15:46:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:46:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 15:46:49,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2757 transitions. [2024-12-02 15:46:49,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8005226480836237 [2024-12-02 15:46:49,130 INFO L175 Difference]: Start difference. First operand has 287 places, 445 transitions, 4100 flow. Second operand 21 states and 2757 transitions. [2024-12-02 15:46:49,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 750 transitions, 8561 flow [2024-12-02 15:46:49,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 750 transitions, 8499 flow, removed 31 selfloop flow, removed 0 redundant places. [2024-12-02 15:46:49,280 INFO L231 Difference]: Finished difference. Result has 319 places, 532 transitions, 5869 flow [2024-12-02 15:46:49,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5869, PETRI_PLACES=319, PETRI_TRANSITIONS=532} [2024-12-02 15:46:49,281 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 156 predicate places. [2024-12-02 15:46:49,281 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 532 transitions, 5869 flow [2024-12-02 15:46:49,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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) [2024-12-02 15:46:49,282 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:49,282 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:49,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:46:49,282 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:49,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:49,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1922040869, now seen corresponding path program 5 times [2024-12-02 15:46:49,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:49,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566497079] [2024-12-02 15:46:49,283 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:46:49,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:49,317 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:46:49,317 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-12-02 15:46:50,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:50,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566497079] [2024-12-02 15:46:50,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566497079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:50,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:50,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:50,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956953426] [2024-12-02 15:46:50,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:50,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:46:50,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:50,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:46:50,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:46:51,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:46:51,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 532 transitions, 5869 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:46:51,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:51,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:46:51,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:51,982 INFO L124 PetriNetUnfolderBase]: 1127/3696 cut-off events. [2024-12-02 15:46:51,983 INFO L125 PetriNetUnfolderBase]: For 23548/23825 co-relation queries the response was YES. [2024-12-02 15:46:52,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17398 conditions, 3696 events. 1127/3696 cut-off events. For 23548/23825 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 30841 event pairs, 93 based on Foata normal form. 84/3741 useless extension candidates. Maximal degree in co-relation 17089. Up to 1093 conditions per place. [2024-12-02 15:46:52,014 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 352 selfloop transitions, 189 changer transitions 18/723 dead transitions. [2024-12-02 15:46:52,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 723 transitions, 8893 flow [2024-12-02 15:46:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:46:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 15:46:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1432 transitions. [2024-12-02 15:46:52,015 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8731707317073171 [2024-12-02 15:46:52,015 INFO L175 Difference]: Start difference. First operand has 319 places, 532 transitions, 5869 flow. Second operand 10 states and 1432 transitions. [2024-12-02 15:46:52,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 723 transitions, 8893 flow [2024-12-02 15:46:52,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 723 transitions, 8696 flow, removed 89 selfloop flow, removed 6 redundant places. [2024-12-02 15:46:52,145 INFO L231 Difference]: Finished difference. Result has 327 places, 562 transitions, 6856 flow [2024-12-02 15:46:52,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=5676, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6856, PETRI_PLACES=327, PETRI_TRANSITIONS=562} [2024-12-02 15:46:52,146 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 164 predicate places. [2024-12-02 15:46:52,146 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 562 transitions, 6856 flow [2024-12-02 15:46:52,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:46:52,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:52,147 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:52,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:46:52,147 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:52,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:52,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1721954273, now seen corresponding path program 6 times [2024-12-02 15:46:52,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:52,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135397196] [2024-12-02 15:46:52,148 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 15:46:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:52,170 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 15:46:52,170 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:46:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-12-02 15:46:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:46:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135397196] [2024-12-02 15:46:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135397196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:52,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:52,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:52,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244572989] [2024-12-02 15:46:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:52,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:46:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:46:52,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:46:52,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:46:53,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:46:53,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 562 transitions, 6856 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:46:53,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:46:53,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:46:53,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:46:54,940 INFO L124 PetriNetUnfolderBase]: 1240/3869 cut-off events. [2024-12-02 15:46:54,940 INFO L125 PetriNetUnfolderBase]: For 30180/30514 co-relation queries the response was YES. [2024-12-02 15:46:54,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19388 conditions, 3869 events. 1240/3869 cut-off events. For 30180/30514 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 32042 event pairs, 174 based on Foata normal form. 196/4020 useless extension candidates. Maximal degree in co-relation 19073. Up to 1768 conditions per place. [2024-12-02 15:46:54,964 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 234 selfloop transitions, 216 changer transitions 25/635 dead transitions. [2024-12-02 15:46:54,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 635 transitions, 8622 flow [2024-12-02 15:46:54,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:46:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 15:46:54,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1651 transitions. [2024-12-02 15:46:54,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8389227642276422 [2024-12-02 15:46:54,966 INFO L175 Difference]: Start difference. First operand has 327 places, 562 transitions, 6856 flow. Second operand 12 states and 1651 transitions. [2024-12-02 15:46:54,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 635 transitions, 8622 flow [2024-12-02 15:46:55,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 635 transitions, 8415 flow, removed 99 selfloop flow, removed 1 redundant places. [2024-12-02 15:46:55,121 INFO L231 Difference]: Finished difference. Result has 342 places, 570 transitions, 7303 flow [2024-12-02 15:46:55,121 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7303, PETRI_PLACES=342, PETRI_TRANSITIONS=570} [2024-12-02 15:46:55,121 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 179 predicate places. [2024-12-02 15:46:55,121 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 570 transitions, 7303 flow [2024-12-02 15:46:55,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:46:55,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:46:55,122 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:55,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:46:55,122 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:46:55,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:55,123 INFO L85 PathProgramCache]: Analyzing trace with hash 712638541, now seen corresponding path program 7 times [2024-12-02 15:46:55,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:46:55,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172692481] [2024-12-02 15:46:55,123 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:46:55,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:46:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:47:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:47:06,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172692481] [2024-12-02 15:47:06,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172692481] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:47:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127001084] [2024-12-02 15:47:06,847 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:47:06,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:47:06,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:47:06,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:47:06,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:47:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:47:07,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-12-02 15:47:07,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:47:07,292 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 16 treesize of output 12 [2024-12-02 15:47:07,484 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:47:07,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:47:07,542 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 15 treesize of output 11 [2024-12-02 15:47:07,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:47:07,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:47:07,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:47:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:07,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:07,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:47:07,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-12-02 15:47:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 15:47:08,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:47:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:47:09,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127001084] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:47:09,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:47:09,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 23] total 45 [2024-12-02 15:47:09,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111179913] [2024-12-02 15:47:09,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:09,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:47:09,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:09,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:47:09,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 15:47:12,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-12-02 15:47:12,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 570 transitions, 7303 flow. Second operand has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-12-02 15:47:12,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:12,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-12-02 15:47:12,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:47:14,367 INFO L124 PetriNetUnfolderBase]: 1215/3913 cut-off events. [2024-12-02 15:47:14,367 INFO L125 PetriNetUnfolderBase]: For 31612/31824 co-relation queries the response was YES. [2024-12-02 15:47:14,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19680 conditions, 3913 events. 1215/3913 cut-off events. For 31612/31824 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 32714 event pairs, 85 based on Foata normal form. 93/3971 useless extension candidates. Maximal degree in co-relation 19422. Up to 1261 conditions per place. [2024-12-02 15:47:14,402 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 470 selfloop transitions, 123 changer transitions 34/782 dead transitions. [2024-12-02 15:47:14,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 782 transitions, 10622 flow [2024-12-02 15:47:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:47:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 15:47:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1809 transitions. [2024-12-02 15:47:14,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8484990619136961 [2024-12-02 15:47:14,404 INFO L175 Difference]: Start difference. First operand has 342 places, 570 transitions, 7303 flow. Second operand 13 states and 1809 transitions. [2024-12-02 15:47:14,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 782 transitions, 10622 flow [2024-12-02 15:47:14,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 782 transitions, 10170 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-12-02 15:47:14,559 INFO L231 Difference]: Finished difference. Result has 354 places, 592 transitions, 7613 flow [2024-12-02 15:47:14,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6909, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7613, PETRI_PLACES=354, PETRI_TRANSITIONS=592} [2024-12-02 15:47:14,560 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 191 predicate places. [2024-12-02 15:47:14,560 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 592 transitions, 7613 flow [2024-12-02 15:47:14,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-12-02 15:47:14,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:47:14,560 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:47:14,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:47:14,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 15:47:14,761 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:47:14,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:47:14,762 INFO L85 PathProgramCache]: Analyzing trace with hash -766963319, now seen corresponding path program 8 times [2024-12-02 15:47:14,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:47:14,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796127969] [2024-12-02 15:47:14,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:47:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:47:14,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:47:14,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:47:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:47:17,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:17,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796127969] [2024-12-02 15:47:17,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796127969] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:47:17,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:47:17,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:47:17,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575834207] [2024-12-02 15:47:17,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:17,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:47:17,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:17,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:47:17,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:47:19,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:47:19,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 592 transitions, 7613 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:47:19,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:19,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:47:19,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:47:20,378 INFO L124 PetriNetUnfolderBase]: 1141/3766 cut-off events. [2024-12-02 15:47:20,379 INFO L125 PetriNetUnfolderBase]: For 34094/34410 co-relation queries the response was YES. [2024-12-02 15:47:20,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19458 conditions, 3766 events. 1141/3766 cut-off events. For 34094/34410 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 31757 event pairs, 144 based on Foata normal form. 142/3859 useless extension candidates. Maximal degree in co-relation 19299. Up to 1558 conditions per place. [2024-12-02 15:47:20,396 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 257 selfloop transitions, 219 changer transitions 11/651 dead transitions. [2024-12-02 15:47:20,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 651 transitions, 9383 flow [2024-12-02 15:47:20,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:47:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 15:47:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1916 transitions. [2024-12-02 15:47:20,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8344947735191638 [2024-12-02 15:47:20,398 INFO L175 Difference]: Start difference. First operand has 354 places, 592 transitions, 7613 flow. Second operand 14 states and 1916 transitions. [2024-12-02 15:47:20,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 651 transitions, 9383 flow [2024-12-02 15:47:20,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 651 transitions, 9225 flow, removed 36 selfloop flow, removed 3 redundant places. [2024-12-02 15:47:20,533 INFO L231 Difference]: Finished difference. Result has 370 places, 612 transitions, 8388 flow [2024-12-02 15:47:20,534 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=7475, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8388, PETRI_PLACES=370, PETRI_TRANSITIONS=612} [2024-12-02 15:47:20,534 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 207 predicate places. [2024-12-02 15:47:20,534 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 612 transitions, 8388 flow [2024-12-02 15:47:20,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:47:20,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:47:20,534 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:47:20,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:47:20,535 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:47:20,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:47:20,535 INFO L85 PathProgramCache]: Analyzing trace with hash 62474829, now seen corresponding path program 9 times [2024-12-02 15:47:20,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:47:20,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409969680] [2024-12-02 15:47:20,536 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:47:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:47:20,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:47:20,552 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:47:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:47:21,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:21,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409969680] [2024-12-02 15:47:21,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409969680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:47:21,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:47:21,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:47:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697162191] [2024-12-02 15:47:21,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:21,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:47:21,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:21,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:47:21,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:47:22,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:47:22,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 612 transitions, 8388 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:47:22,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:22,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:47:22,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:47:24,215 INFO L124 PetriNetUnfolderBase]: 1236/3899 cut-off events. [2024-12-02 15:47:24,216 INFO L125 PetriNetUnfolderBase]: For 38226/38503 co-relation queries the response was YES. [2024-12-02 15:47:24,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20891 conditions, 3899 events. 1236/3899 cut-off events. For 38226/38503 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 32493 event pairs, 138 based on Foata normal form. 110/3968 useless extension candidates. Maximal degree in co-relation 20716. Up to 1320 conditions per place. [2024-12-02 15:47:24,242 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 452 selfloop transitions, 153 changer transitions 24/789 dead transitions. [2024-12-02 15:47:24,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 789 transitions, 11458 flow [2024-12-02 15:47:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:47:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:47:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1553 transitions. [2024-12-02 15:47:24,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8608647450110865 [2024-12-02 15:47:24,244 INFO L175 Difference]: Start difference. First operand has 370 places, 612 transitions, 8388 flow. Second operand 11 states and 1553 transitions. [2024-12-02 15:47:24,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 789 transitions, 11458 flow [2024-12-02 15:47:24,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 789 transitions, 11165 flow, removed 77 selfloop flow, removed 4 redundant places. [2024-12-02 15:47:24,497 INFO L231 Difference]: Finished difference. Result has 382 places, 626 transitions, 8824 flow [2024-12-02 15:47:24,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=8116, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8824, PETRI_PLACES=382, PETRI_TRANSITIONS=626} [2024-12-02 15:47:24,498 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 219 predicate places. [2024-12-02 15:47:24,498 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 626 transitions, 8824 flow [2024-12-02 15:47:24,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:47:24,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:47:24,499 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:47:24,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:47:24,499 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:47:24,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:47:24,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1475036883, now seen corresponding path program 10 times [2024-12-02 15:47:24,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:47:24,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847786779] [2024-12-02 15:47:24,501 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:47:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:47:24,538 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:47:24,538 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:47:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:47:26,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:26,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847786779] [2024-12-02 15:47:26,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847786779] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:47:26,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154430250] [2024-12-02 15:47:26,166 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:47:26,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:47:26,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:47:26,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:47:26,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:47:26,310 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:47:26,310 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:47:26,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-02 15:47:26,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:47:26,641 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 16 treesize of output 12 [2024-12-02 15:47:26,693 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 15 treesize of output 11 [2024-12-02 15:47:26,872 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:47:26,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:47:26,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:47:27,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:47:27,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:47:27,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:27,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:27,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:27,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:27,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:47:27,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-12-02 15:47:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:47:27,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:47:28,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 49 treesize of output 47 [2024-12-02 15:47:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:47:28,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154430250] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:47:28,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:47:28,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15, 25] total 46 [2024-12-02 15:47:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252585743] [2024-12-02 15:47:28,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:28,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:47:28,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:28,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:47:28,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1968, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 15:47:36,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:47:36,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 626 transitions, 8824 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-12-02 15:47:36,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:36,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:47:36,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:47:41,398 INFO L124 PetriNetUnfolderBase]: 1268/4094 cut-off events. [2024-12-02 15:47:41,398 INFO L125 PetriNetUnfolderBase]: For 44902/45105 co-relation queries the response was YES. [2024-12-02 15:47:41,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22596 conditions, 4094 events. 1268/4094 cut-off events. For 44902/45105 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 34720 event pairs, 141 based on Foata normal form. 90/4137 useless extension candidates. Maximal degree in co-relation 22260. Up to 1587 conditions per place. [2024-12-02 15:47:41,424 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 322 selfloop transitions, 293 changer transitions 12/785 dead transitions. [2024-12-02 15:47:41,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 785 transitions, 12569 flow [2024-12-02 15:47:41,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:47:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 15:47:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1783 transitions. [2024-12-02 15:47:41,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8363039399624765 [2024-12-02 15:47:41,426 INFO L175 Difference]: Start difference. First operand has 382 places, 626 transitions, 8824 flow. Second operand 13 states and 1783 transitions. [2024-12-02 15:47:41,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 785 transitions, 12569 flow [2024-12-02 15:47:41,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 785 transitions, 12088 flow, removed 41 selfloop flow, removed 5 redundant places. [2024-12-02 15:47:41,658 INFO L231 Difference]: Finished difference. Result has 396 places, 695 transitions, 10714 flow [2024-12-02 15:47:41,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=8438, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10714, PETRI_PLACES=396, PETRI_TRANSITIONS=695} [2024-12-02 15:47:41,659 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 233 predicate places. [2024-12-02 15:47:41,659 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 695 transitions, 10714 flow [2024-12-02 15:47:41,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-12-02 15:47:41,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:47:41,660 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:47:41,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:47:41,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 15:47:41,860 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:47:41,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:47:41,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1096866395, now seen corresponding path program 11 times [2024-12-02 15:47:41,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:47:41,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557358543] [2024-12-02 15:47:41,861 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:47:41,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:47:41,889 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:47:41,889 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:47:42,681 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:47:42,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:42,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557358543] [2024-12-02 15:47:42,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557358543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:47:42,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:47:42,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:47:42,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935962290] [2024-12-02 15:47:42,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:42,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:47:42,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:42,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:47:42,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:47:43,803 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:47:43,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 695 transitions, 10714 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:47:43,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:43,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:47:43,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:47:45,192 INFO L124 PetriNetUnfolderBase]: 1212/3948 cut-off events. [2024-12-02 15:47:45,192 INFO L125 PetriNetUnfolderBase]: For 47044/47417 co-relation queries the response was YES. [2024-12-02 15:47:45,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22626 conditions, 3948 events. 1212/3948 cut-off events. For 47044/47417 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 33470 event pairs, 149 based on Foata normal form. 214/4103 useless extension candidates. Maximal degree in co-relation 22432. Up to 1673 conditions per place. [2024-12-02 15:47:45,218 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 293 selfloop transitions, 266 changer transitions 9/733 dead transitions. [2024-12-02 15:47:45,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 733 transitions, 12311 flow [2024-12-02 15:47:45,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:47:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:47:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1528 transitions. [2024-12-02 15:47:45,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8470066518847007 [2024-12-02 15:47:45,220 INFO L175 Difference]: Start difference. First operand has 396 places, 695 transitions, 10714 flow. Second operand 11 states and 1528 transitions. [2024-12-02 15:47:45,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 733 transitions, 12311 flow [2024-12-02 15:47:45,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 733 transitions, 12158 flow, removed 72 selfloop flow, removed 1 redundant places. [2024-12-02 15:47:45,529 INFO L231 Difference]: Finished difference. Result has 407 places, 697 transitions, 11142 flow [2024-12-02 15:47:45,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=10561, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11142, PETRI_PLACES=407, PETRI_TRANSITIONS=697} [2024-12-02 15:47:45,530 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 244 predicate places. [2024-12-02 15:47:45,530 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 697 transitions, 11142 flow [2024-12-02 15:47:45,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:47:45,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:47:45,531 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:47:45,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 15:47:45,531 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:47:45,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:47:45,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1535570590, now seen corresponding path program 1 times [2024-12-02 15:47:45,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:47:45,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710003137] [2024-12-02 15:47:45,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:47:45,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:47:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:47:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:47:50,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:47:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710003137] [2024-12-02 15:47:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710003137] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:47:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261126843] [2024-12-02 15:47:50,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:47:50,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:47:50,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:47:50,193 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:47:50,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:47:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:47:50,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 15:47:50,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:47:50,519 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 16 treesize of output 12 [2024-12-02 15:47:50,657 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:47:50,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:47:50,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-12-02 15:47:50,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2024-12-02 15:47:50,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 15:47:50,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 15:47:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:47:51,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:47:51,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 47 [2024-12-02 15:47:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 15:47:51,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:47:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:47:52,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261126843] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:47:52,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:47:52,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 21] total 39 [2024-12-02 15:47:52,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16976257] [2024-12-02 15:47:52,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:47:52,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:47:52,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:47:52,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:47:52,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1369, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 15:47:57,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2024-12-02 15:47:57,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 697 transitions, 11142 flow. Second operand has 11 states, 11 states have (on average 134.45454545454547) internal successors, (1479), 11 states have internal predecessors, (1479), 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) [2024-12-02 15:47:57,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:47:57,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2024-12-02 15:47:57,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:48:00,558 INFO L124 PetriNetUnfolderBase]: 1034/3571 cut-off events. [2024-12-02 15:48:00,558 INFO L125 PetriNetUnfolderBase]: For 49752/50074 co-relation queries the response was YES. [2024-12-02 15:48:00,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21194 conditions, 3571 events. 1034/3571 cut-off events. For 49752/50074 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 30244 event pairs, 60 based on Foata normal form. 56/3603 useless extension candidates. Maximal degree in co-relation 20849. Up to 858 conditions per place. [2024-12-02 15:48:00,581 INFO L140 encePairwiseOnDemand]: 147/164 looper letters, 455 selfloop transitions, 156 changer transitions 36/863 dead transitions. [2024-12-02 15:48:00,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 863 transitions, 14316 flow [2024-12-02 15:48:00,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 15:48:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 15:48:00,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2530 transitions. [2024-12-02 15:48:00,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8570460704607046 [2024-12-02 15:48:00,583 INFO L175 Difference]: Start difference. First operand has 407 places, 697 transitions, 11142 flow. Second operand 18 states and 2530 transitions. [2024-12-02 15:48:00,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 863 transitions, 14316 flow [2024-12-02 15:48:00,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 863 transitions, 13917 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-12-02 15:48:00,812 INFO L231 Difference]: Finished difference. Result has 428 places, 748 transitions, 12103 flow [2024-12-02 15:48:00,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=10797, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=12103, PETRI_PLACES=428, PETRI_TRANSITIONS=748} [2024-12-02 15:48:00,813 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 265 predicate places. [2024-12-02 15:48:00,813 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 748 transitions, 12103 flow [2024-12-02 15:48:00,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.45454545454547) internal successors, (1479), 11 states have internal predecessors, (1479), 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) [2024-12-02 15:48:00,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:48:00,814 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:48:00,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:48:01,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:48:01,014 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:48:01,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:48:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1172037051, now seen corresponding path program 12 times [2024-12-02 15:48:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:48:01,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231407288] [2024-12-02 15:48:01,016 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 15:48:01,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:48:01,036 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 15:48:01,036 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:48:01,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:48:01,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231407288] [2024-12-02 15:48:01,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231407288] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:48:01,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:48:01,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:48:01,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812269473] [2024-12-02 15:48:01,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:48:01,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:48:01,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:48:01,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:48:01,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:48:03,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:48:03,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 748 transitions, 12103 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:48:03,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:48:03,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:48:03,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:48:04,602 INFO L124 PetriNetUnfolderBase]: 1205/3965 cut-off events. [2024-12-02 15:48:04,602 INFO L125 PetriNetUnfolderBase]: For 52694/53079 co-relation queries the response was YES. [2024-12-02 15:48:04,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23831 conditions, 3965 events. 1205/3965 cut-off events. For 52694/53079 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 33704 event pairs, 151 based on Foata normal form. 158/4064 useless extension candidates. Maximal degree in co-relation 23613. Up to 1673 conditions per place. [2024-12-02 15:48:04,630 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 332 selfloop transitions, 281 changer transitions 9/791 dead transitions. [2024-12-02 15:48:04,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 791 transitions, 13972 flow [2024-12-02 15:48:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:48:04,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 15:48:04,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1788 transitions. [2024-12-02 15:48:04,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386491557223265 [2024-12-02 15:48:04,632 INFO L175 Difference]: Start difference. First operand has 428 places, 748 transitions, 12103 flow. Second operand 13 states and 1788 transitions. [2024-12-02 15:48:04,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 791 transitions, 13972 flow [2024-12-02 15:48:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 791 transitions, 13876 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-12-02 15:48:04,908 INFO L231 Difference]: Finished difference. Result has 433 places, 759 transitions, 12852 flow [2024-12-02 15:48:04,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=12015, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12852, PETRI_PLACES=433, PETRI_TRANSITIONS=759} [2024-12-02 15:48:04,909 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 270 predicate places. [2024-12-02 15:48:04,909 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 759 transitions, 12852 flow [2024-12-02 15:48:04,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:48:04,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:48:04,909 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:48:04,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 15:48:04,909 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:48:04,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:48:04,910 INFO L85 PathProgramCache]: Analyzing trace with hash 949366115, now seen corresponding path program 13 times [2024-12-02 15:48:04,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:48:04,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964951472] [2024-12-02 15:48:04,910 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:48:04,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:48:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:48:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:48:11,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:48:11,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964951472] [2024-12-02 15:48:11,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964951472] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:48:11,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939485525] [2024-12-02 15:48:11,595 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:48:11,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:48:11,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:48:11,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:48:11,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:48:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:48:11,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-02 15:48:11,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:48:12,113 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 16 treesize of output 12 [2024-12-02 15:48:12,273 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 15 treesize of output 11 [2024-12-02 15:48:12,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:48:12,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:48:12,501 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:48:12,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:48:12,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:48:12,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:12,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:12,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:12,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:12,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:48:12,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-12-02 15:48:12,906 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:48:12,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:48:14,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:48:14,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:48:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:48:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939485525] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:48:14,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:48:14,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 25] total 46 [2024-12-02 15:48:14,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778631995] [2024-12-02 15:48:14,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:48:14,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:48:14,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:48:14,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:48:14,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1974, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 15:48:17,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-12-02 15:48:17,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 759 transitions, 12852 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-12-02 15:48:17,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:48:17,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-12-02 15:48:17,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:48:21,089 INFO L124 PetriNetUnfolderBase]: 1393/4453 cut-off events. [2024-12-02 15:48:21,089 INFO L125 PetriNetUnfolderBase]: For 63682/63915 co-relation queries the response was YES. [2024-12-02 15:48:21,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27239 conditions, 4453 events. 1393/4453 cut-off events. For 63682/63915 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 37684 event pairs, 94 based on Foata normal form. 115/4522 useless extension candidates. Maximal degree in co-relation 26884. Up to 1118 conditions per place. [2024-12-02 15:48:21,119 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 470 selfloop transitions, 410 changer transitions 16/1051 dead transitions. [2024-12-02 15:48:21,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1051 transitions, 18716 flow [2024-12-02 15:48:21,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 15:48:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 15:48:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2494 transitions. [2024-12-02 15:48:21,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8448509485094851 [2024-12-02 15:48:21,121 INFO L175 Difference]: Start difference. First operand has 433 places, 759 transitions, 12852 flow. Second operand 18 states and 2494 transitions. [2024-12-02 15:48:21,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1051 transitions, 18716 flow [2024-12-02 15:48:21,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 1051 transitions, 18204 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-12-02 15:48:21,442 INFO L231 Difference]: Finished difference. Result has 456 places, 837 transitions, 15206 flow [2024-12-02 15:48:21,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=12417, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=336, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15206, PETRI_PLACES=456, PETRI_TRANSITIONS=837} [2024-12-02 15:48:21,442 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 293 predicate places. [2024-12-02 15:48:21,442 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 837 transitions, 15206 flow [2024-12-02 15:48:21,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-12-02 15:48:21,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:48:21,443 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:48:21,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 15:48:21,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:48:21,644 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:48:21,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:48:21,645 INFO L85 PathProgramCache]: Analyzing trace with hash 196485581, now seen corresponding path program 14 times [2024-12-02 15:48:21,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:48:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98452107] [2024-12-02 15:48:21,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:48:21,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:48:21,666 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:48:21,666 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:48:24,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:48:24,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98452107] [2024-12-02 15:48:24,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98452107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:48:24,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:48:24,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:48:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86864785] [2024-12-02 15:48:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:48:24,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:48:24,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:48:24,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:48:24,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:48:25,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:48:25,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 837 transitions, 15206 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:48:25,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:48:25,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:48:25,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:48:27,477 INFO L124 PetriNetUnfolderBase]: 1283/4232 cut-off events. [2024-12-02 15:48:27,477 INFO L125 PetriNetUnfolderBase]: For 70928/71292 co-relation queries the response was YES. [2024-12-02 15:48:27,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27643 conditions, 4232 events. 1283/4232 cut-off events. For 70928/71292 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 36250 event pairs, 172 based on Foata normal form. 164/4335 useless extension candidates. Maximal degree in co-relation 27337. Up to 1794 conditions per place. [2024-12-02 15:48:27,512 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 378 selfloop transitions, 301 changer transitions 9/872 dead transitions. [2024-12-02 15:48:27,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 872 transitions, 17080 flow [2024-12-02 15:48:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:48:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 15:48:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1390 transitions. [2024-12-02 15:48:27,513 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8475609756097561 [2024-12-02 15:48:27,513 INFO L175 Difference]: Start difference. First operand has 456 places, 837 transitions, 15206 flow. Second operand 10 states and 1390 transitions. [2024-12-02 15:48:27,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 872 transitions, 17080 flow [2024-12-02 15:48:27,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 872 transitions, 16809 flow, removed 65 selfloop flow, removed 4 redundant places. [2024-12-02 15:48:27,912 INFO L231 Difference]: Finished difference. Result has 465 places, 841 transitions, 15710 flow [2024-12-02 15:48:27,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=14939, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=837, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15710, PETRI_PLACES=465, PETRI_TRANSITIONS=841} [2024-12-02 15:48:27,913 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 302 predicate places. [2024-12-02 15:48:27,913 INFO L471 AbstractCegarLoop]: Abstraction has has 465 places, 841 transitions, 15710 flow [2024-12-02 15:48:27,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:48:27,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:48:27,913 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:48:27,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 15:48:27,913 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:48:27,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:48:27,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1925718945, now seen corresponding path program 15 times [2024-12-02 15:48:27,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:48:27,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176890541] [2024-12-02 15:48:27,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:48:27,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:48:27,935 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:48:27,935 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:48:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:48:30,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176890541] [2024-12-02 15:48:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176890541] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:48:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:48:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:48:30,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391354411] [2024-12-02 15:48:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:48:30,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:48:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:48:30,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:48:30,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:48:32,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:48:32,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 841 transitions, 15710 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:48:32,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:48:32,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:48:32,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:48:33,799 INFO L124 PetriNetUnfolderBase]: 1283/4228 cut-off events. [2024-12-02 15:48:33,799 INFO L125 PetriNetUnfolderBase]: For 75321/75677 co-relation queries the response was YES. [2024-12-02 15:48:33,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28216 conditions, 4228 events. 1283/4228 cut-off events. For 75321/75677 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 36241 event pairs, 161 based on Foata normal form. 122/4288 useless extension candidates. Maximal degree in co-relation 27909. Up to 1779 conditions per place. [2024-12-02 15:48:33,833 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 388 selfloop transitions, 304 changer transitions 11/887 dead transitions. [2024-12-02 15:48:33,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 887 transitions, 17929 flow [2024-12-02 15:48:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 15:48:33,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 15:48:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2041 transitions. [2024-12-02 15:48:33,835 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8296747967479675 [2024-12-02 15:48:33,835 INFO L175 Difference]: Start difference. First operand has 465 places, 841 transitions, 15710 flow. Second operand 15 states and 2041 transitions. [2024-12-02 15:48:33,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 887 transitions, 17929 flow [2024-12-02 15:48:34,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 887 transitions, 17348 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-12-02 15:48:34,253 INFO L231 Difference]: Finished difference. Result has 478 places, 853 transitions, 16113 flow [2024-12-02 15:48:34,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=15149, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16113, PETRI_PLACES=478, PETRI_TRANSITIONS=853} [2024-12-02 15:48:34,254 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 315 predicate places. [2024-12-02 15:48:34,254 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 853 transitions, 16113 flow [2024-12-02 15:48:34,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:48:34,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:48:34,254 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:48:34,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 15:48:34,255 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:48:34,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:48:34,256 INFO L85 PathProgramCache]: Analyzing trace with hash 841796365, now seen corresponding path program 16 times [2024-12-02 15:48:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:48:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362057814] [2024-12-02 15:48:34,256 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:48:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:48:34,277 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:48:34,277 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:48:35,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:48:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362057814] [2024-12-02 15:48:35,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362057814] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:48:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806236346] [2024-12-02 15:48:35,731 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:48:35,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:48:35,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:48:35,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:48:35,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:48:35,865 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:48:35,865 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:35,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-02 15:48:35,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:48:36,162 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 16 treesize of output 12 [2024-12-02 15:48:36,201 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 15 treesize of output 11 [2024-12-02 15:48:36,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:48:36,423 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:48:36,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:48:36,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:48:36,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:48:36,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:36,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:36,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:36,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:36,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:48:36,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-12-02 15:48:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:48:36,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:48:38,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 49 treesize of output 47 [2024-12-02 15:48:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:48:38,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806236346] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:48:38,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:48:38,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15, 25] total 46 [2024-12-02 15:48:38,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190351080] [2024-12-02 15:48:38,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:48:38,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:48:38,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:48:38,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:48:38,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1967, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 15:48:45,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:48:45,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 853 transitions, 16113 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-12-02 15:48:45,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:48:45,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:48:45,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:48:49,338 INFO L124 PetriNetUnfolderBase]: 1367/4377 cut-off events. [2024-12-02 15:48:49,338 INFO L125 PetriNetUnfolderBase]: For 78360/78615 co-relation queries the response was YES. [2024-12-02 15:48:49,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29467 conditions, 4377 events. 1367/4377 cut-off events. For 78360/78615 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 37395 event pairs, 156 based on Foata normal form. 116/4428 useless extension candidates. Maximal degree in co-relation 29094. Up to 1649 conditions per place. [2024-12-02 15:48:49,378 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 384 selfloop transitions, 383 changer transitions 10/939 dead transitions. [2024-12-02 15:48:49,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 939 transitions, 19020 flow [2024-12-02 15:48:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:48:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 15:48:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1913 transitions. [2024-12-02 15:48:49,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8331881533101045 [2024-12-02 15:48:49,379 INFO L175 Difference]: Start difference. First operand has 478 places, 853 transitions, 16113 flow. Second operand 14 states and 1913 transitions. [2024-12-02 15:48:49,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 939 transitions, 19020 flow [2024-12-02 15:48:49,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 939 transitions, 18451 flow, removed 122 selfloop flow, removed 4 redundant places. [2024-12-02 15:48:49,946 INFO L231 Difference]: Finished difference. Result has 491 places, 867 transitions, 16837 flow [2024-12-02 15:48:49,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=15625, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16837, PETRI_PLACES=491, PETRI_TRANSITIONS=867} [2024-12-02 15:48:49,947 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 328 predicate places. [2024-12-02 15:48:49,947 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 867 transitions, 16837 flow [2024-12-02 15:48:49,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-12-02 15:48:49,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:48:49,947 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:48:49,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:48:50,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 15:48:50,148 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:48:50,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:48:50,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1414024229, now seen corresponding path program 17 times [2024-12-02 15:48:50,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:48:50,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142739828] [2024-12-02 15:48:50,151 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:48:50,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:48:50,185 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:48:50,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 2 proven. 237 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 15:48:56,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:48:56,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142739828] [2024-12-02 15:48:56,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142739828] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:48:56,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031272713] [2024-12-02 15:48:56,913 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:48:56,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:48:56,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:48:56,915 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:48:56,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 15:48:57,100 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:48:57,100 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:48:57,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 15:48:57,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:48:57,129 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 16 treesize of output 12 [2024-12-02 15:48:57,184 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 15 treesize of output 11 [2024-12-02 15:48:57,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:48:57,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:48:57,411 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:48:57,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:48:57,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:48:57,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:48:57,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:48:57,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-12-02 15:48:57,804 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-02 15:48:57,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:48:58,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 49 treesize of output 47 [2024-12-02 15:48:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:48:58,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031272713] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:48:58,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:48:58,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [35, 19] total 52 [2024-12-02 15:48:58,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768174084] [2024-12-02 15:48:58,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:48:58,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:48:58,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:48:58,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:48:58,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2544, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 15:49:02,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-12-02 15:49:02,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 867 transitions, 16837 flow. Second operand has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-12-02 15:49:02,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:49:02,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-12-02 15:49:02,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:49:06,108 INFO L124 PetriNetUnfolderBase]: 1435/4616 cut-off events. [2024-12-02 15:49:06,108 INFO L125 PetriNetUnfolderBase]: For 86951/87196 co-relation queries the response was YES. [2024-12-02 15:49:06,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31361 conditions, 4616 events. 1435/4616 cut-off events. For 86951/87196 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 39787 event pairs, 157 based on Foata normal form. 117/4664 useless extension candidates. Maximal degree in co-relation 30985. Up to 1784 conditions per place. [2024-12-02 15:49:06,149 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 443 selfloop transitions, 417 changer transitions 15/1030 dead transitions. [2024-12-02 15:49:06,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1030 transitions, 21771 flow [2024-12-02 15:49:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 15:49:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 15:49:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2410 transitions. [2024-12-02 15:49:06,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8163956639566395 [2024-12-02 15:49:06,151 INFO L175 Difference]: Start difference. First operand has 491 places, 867 transitions, 16837 flow. Second operand 18 states and 2410 transitions. [2024-12-02 15:49:06,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1030 transitions, 21771 flow [2024-12-02 15:49:06,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 1030 transitions, 21195 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-12-02 15:49:06,680 INFO L231 Difference]: Finished difference. Result has 511 places, 930 transitions, 18910 flow [2024-12-02 15:49:06,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=16307, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=357, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=18910, PETRI_PLACES=511, PETRI_TRANSITIONS=930} [2024-12-02 15:49:06,681 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 348 predicate places. [2024-12-02 15:49:06,681 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 930 transitions, 18910 flow [2024-12-02 15:49:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2024-12-02 15:49:06,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:49:06,682 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:49:06,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 15:49:06,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 15:49:06,882 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:49:06,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:49:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash -363160435, now seen corresponding path program 18 times [2024-12-02 15:49:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:49:06,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702971856] [2024-12-02 15:49:06,884 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 15:49:06,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:49:06,899 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 15:49:06,899 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:49:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:49:07,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:49:07,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702971856] [2024-12-02 15:49:07,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702971856] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:49:07,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:49:07,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:49:07,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972330738] [2024-12-02 15:49:07,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:49:07,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:49:07,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:49:07,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:49:07,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:49:08,528 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:49:08,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 930 transitions, 18910 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:49:08,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:49:08,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:49:08,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:49:10,578 INFO L124 PetriNetUnfolderBase]: 1395/4506 cut-off events. [2024-12-02 15:49:10,579 INFO L125 PetriNetUnfolderBase]: For 92476/92824 co-relation queries the response was YES. [2024-12-02 15:49:10,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31421 conditions, 4506 events. 1395/4506 cut-off events. For 92476/92824 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 38857 event pairs, 188 based on Foata normal form. 123/4568 useless extension candidates. Maximal degree in co-relation 31045. Up to 2009 conditions per place. [2024-12-02 15:49:10,622 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 414 selfloop transitions, 353 changer transitions 14/973 dead transitions. [2024-12-02 15:49:10,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 973 transitions, 21104 flow [2024-12-02 15:49:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:49:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 15:49:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1894 transitions. [2024-12-02 15:49:10,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8249128919860628 [2024-12-02 15:49:10,624 INFO L175 Difference]: Start difference. First operand has 511 places, 930 transitions, 18910 flow. Second operand 14 states and 1894 transitions. [2024-12-02 15:49:10,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 973 transitions, 21104 flow [2024-12-02 15:49:11,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 973 transitions, 20988 flow, removed 32 selfloop flow, removed 4 redundant places. [2024-12-02 15:49:11,148 INFO L231 Difference]: Finished difference. Result has 523 places, 936 transitions, 19753 flow [2024-12-02 15:49:11,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=18794, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19753, PETRI_PLACES=523, PETRI_TRANSITIONS=936} [2024-12-02 15:49:11,149 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 360 predicate places. [2024-12-02 15:49:11,149 INFO L471 AbstractCegarLoop]: Abstraction has has 523 places, 936 transitions, 19753 flow [2024-12-02 15:49:11,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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) [2024-12-02 15:49:11,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:49:11,150 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:49:11,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 15:49:11,150 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:49:11,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:49:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash -489117001, now seen corresponding path program 19 times [2024-12-02 15:49:11,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:49:11,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481014830] [2024-12-02 15:49:11,151 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:49:11,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:49:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:49:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:49:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:49:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481014830] [2024-12-02 15:49:22,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481014830] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:49:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548891346] [2024-12-02 15:49:22,937 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:49:22,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:49:22,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:49:22,939 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:49:22,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 15:49:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:49:23,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-12-02 15:49:23,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:49:23,354 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 16 treesize of output 12 [2024-12-02 15:49:23,508 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 15 treesize of output 11 [2024-12-02 15:49:23,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:49:23,636 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:49:23,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:49:23,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:49:23,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:49:23,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:23,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:23,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:23,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:23,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:49:23,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-12-02 15:49:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 15:49:24,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:49:25,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:49:25,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:49:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:49:25,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548891346] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:49:25,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:49:25,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 23] total 44 [2024-12-02 15:49:25,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905674583] [2024-12-02 15:49:25,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:49:25,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:49:25,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:49:25,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:49:25,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1778, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 15:49:29,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-12-02 15:49:29,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 936 transitions, 19753 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-12-02 15:49:29,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:49:29,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-12-02 15:49:29,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:49:33,512 INFO L124 PetriNetUnfolderBase]: 1437/4675 cut-off events. [2024-12-02 15:49:33,513 INFO L125 PetriNetUnfolderBase]: For 101715/102051 co-relation queries the response was YES. [2024-12-02 15:49:33,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32868 conditions, 4675 events. 1437/4675 cut-off events. For 101715/102051 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 40105 event pairs, 75 based on Foata normal form. 130/4751 useless extension candidates. Maximal degree in co-relation 32519. Up to 1137 conditions per place. [2024-12-02 15:49:33,566 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 543 selfloop transitions, 451 changer transitions 10/1159 dead transitions. [2024-12-02 15:49:33,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 1159 transitions, 25133 flow [2024-12-02 15:49:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 15:49:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 15:49:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2024-12-02 15:49:33,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8380758807588076 [2024-12-02 15:49:33,568 INFO L175 Difference]: Start difference. First operand has 523 places, 936 transitions, 19753 flow. Second operand 18 states and 2474 transitions. [2024-12-02 15:49:33,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 1159 transitions, 25133 flow [2024-12-02 15:49:34,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 1159 transitions, 24244 flow, removed 32 selfloop flow, removed 9 redundant places. [2024-12-02 15:49:34,216 INFO L231 Difference]: Finished difference. Result has 537 places, 955 transitions, 20365 flow [2024-12-02 15:49:34,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=18947, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20365, PETRI_PLACES=537, PETRI_TRANSITIONS=955} [2024-12-02 15:49:34,217 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 374 predicate places. [2024-12-02 15:49:34,217 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 955 transitions, 20365 flow [2024-12-02 15:49:34,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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) [2024-12-02 15:49:34,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:49:34,218 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:49:34,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 15:49:34,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 15:49:34,418 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:49:34,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:49:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash 237042805, now seen corresponding path program 20 times [2024-12-02 15:49:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:49:34,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062930720] [2024-12-02 15:49:34,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:49:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:49:34,436 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:49:34,436 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:49:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:49:35,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:49:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062930720] [2024-12-02 15:49:35,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062930720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:49:35,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:49:35,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:49:35,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373792980] [2024-12-02 15:49:35,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:49:35,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:49:35,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:49:35,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:49:35,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:49:36,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:49:36,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 955 transitions, 20365 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:49:36,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:49:36,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:49:36,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:49:38,122 INFO L124 PetriNetUnfolderBase]: 1330/4423 cut-off events. [2024-12-02 15:49:38,122 INFO L125 PetriNetUnfolderBase]: For 100164/100515 co-relation queries the response was YES. [2024-12-02 15:49:38,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31760 conditions, 4423 events. 1330/4423 cut-off events. For 100164/100515 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 38396 event pairs, 131 based on Foata normal form. 110/4469 useless extension candidates. Maximal degree in co-relation 31484. Up to 1281 conditions per place. [2024-12-02 15:49:38,173 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 644 selfloop transitions, 228 changer transitions 10/1086 dead transitions. [2024-12-02 15:49:38,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 1086 transitions, 23888 flow [2024-12-02 15:49:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:49:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:49:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1548 transitions. [2024-12-02 15:49:38,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8580931263858093 [2024-12-02 15:49:38,175 INFO L175 Difference]: Start difference. First operand has 537 places, 955 transitions, 20365 flow. Second operand 11 states and 1548 transitions. [2024-12-02 15:49:38,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 1086 transitions, 23888 flow [2024-12-02 15:49:38,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1086 transitions, 23307 flow, removed 34 selfloop flow, removed 7 redundant places. [2024-12-02 15:49:38,839 INFO L231 Difference]: Finished difference. Result has 544 places, 966 transitions, 20742 flow [2024-12-02 15:49:38,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=19798, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20742, PETRI_PLACES=544, PETRI_TRANSITIONS=966} [2024-12-02 15:49:38,840 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 381 predicate places. [2024-12-02 15:49:38,840 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 966 transitions, 20742 flow [2024-12-02 15:49:38,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:49:38,840 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:49:38,840 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:49:38,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 15:49:38,841 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:49:38,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:49:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1532683865, now seen corresponding path program 21 times [2024-12-02 15:49:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:49:38,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122365394] [2024-12-02 15:49:38,842 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:49:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:49:38,859 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:49:38,859 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:49:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:49:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:49:39,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122365394] [2024-12-02 15:49:39,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122365394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:49:39,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:49:39,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:49:39,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520102327] [2024-12-02 15:49:39,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:49:39,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:49:39,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:49:39,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:49:39,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:49:40,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-12-02 15:49:40,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 966 transitions, 20742 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:49:40,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:49:40,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-12-02 15:49:40,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:49:42,884 INFO L124 PetriNetUnfolderBase]: 1327/4420 cut-off events. [2024-12-02 15:49:42,884 INFO L125 PetriNetUnfolderBase]: For 102930/103285 co-relation queries the response was YES. [2024-12-02 15:49:42,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31753 conditions, 4420 events. 1327/4420 cut-off events. For 102930/103285 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 38385 event pairs, 131 based on Foata normal form. 120/4476 useless extension candidates. Maximal degree in co-relation 31475. Up to 1281 conditions per place. [2024-12-02 15:49:42,938 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 634 selfloop transitions, 239 changer transitions 9/1086 dead transitions. [2024-12-02 15:49:42,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1086 transitions, 23941 flow [2024-12-02 15:49:42,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:49:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:49:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1550 transitions. [2024-12-02 15:49:42,940 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8592017738359202 [2024-12-02 15:49:42,940 INFO L175 Difference]: Start difference. First operand has 544 places, 966 transitions, 20742 flow. Second operand 11 states and 1550 transitions. [2024-12-02 15:49:42,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1086 transitions, 23941 flow [2024-12-02 15:49:43,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1086 transitions, 23641 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-12-02 15:49:43,670 INFO L231 Difference]: Finished difference. Result has 553 places, 970 transitions, 21173 flow [2024-12-02 15:49:43,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=20452, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=21173, PETRI_PLACES=553, PETRI_TRANSITIONS=970} [2024-12-02 15:49:43,671 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 390 predicate places. [2024-12-02 15:49:43,671 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 970 transitions, 21173 flow [2024-12-02 15:49:43,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2024-12-02 15:49:43,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:49:43,672 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:49:43,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 15:49:43,672 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:49:43,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:49:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1619759417, now seen corresponding path program 22 times [2024-12-02 15:49:43,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:49:43,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858426893] [2024-12-02 15:49:43,673 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:49:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:49:43,698 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:49:43,698 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:49:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:49:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:49:44,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858426893] [2024-12-02 15:49:44,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858426893] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:49:44,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140185977] [2024-12-02 15:49:44,682 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:49:44,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:49:44,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:49:44,683 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:49:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 15:49:44,837 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:49:44,837 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:49:44,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-02 15:49:44,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:49:45,125 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 16 treesize of output 12 [2024-12-02 15:49:45,191 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 15 treesize of output 11 [2024-12-02 15:49:45,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:49:45,303 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:49:45,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:49:45,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:49:45,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:49:45,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:45,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:45,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:45,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:49:45,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:49:45,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-12-02 15:49:45,597 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:49:45,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:49:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:49:46,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140185977] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:49:46,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:49:46,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 25] total 43 [2024-12-02 15:49:46,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265126841] [2024-12-02 15:49:46,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:49:46,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:49:46,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:49:46,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:49:46,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 15:49:50,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:49:50,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 970 transitions, 21173 flow. Second operand has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-12-02 15:49:50,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:49:50,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:49:50,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:49:54,915 INFO L124 PetriNetUnfolderBase]: 1410/4602 cut-off events. [2024-12-02 15:49:54,915 INFO L125 PetriNetUnfolderBase]: For 106482/106776 co-relation queries the response was YES. [2024-12-02 15:49:54,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33115 conditions, 4602 events. 1410/4602 cut-off events. For 106482/106776 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 39814 event pairs, 103 based on Foata normal form. 136/4681 useless extension candidates. Maximal degree in co-relation 32831. Up to 1598 conditions per place. [2024-12-02 15:49:54,966 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 407 selfloop transitions, 444 changer transitions 15/1028 dead transitions. [2024-12-02 15:49:54,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1028 transitions, 23688 flow [2024-12-02 15:49:54,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:49:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 15:49:54,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1661 transitions. [2024-12-02 15:49:54,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440040650406504 [2024-12-02 15:49:54,967 INFO L175 Difference]: Start difference. First operand has 553 places, 970 transitions, 21173 flow. Second operand 12 states and 1661 transitions. [2024-12-02 15:49:54,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 1028 transitions, 23688 flow [2024-12-02 15:49:55,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 1028 transitions, 23300 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-12-02 15:49:55,671 INFO L231 Difference]: Finished difference. Result has 558 places, 970 transitions, 21700 flow [2024-12-02 15:49:55,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=20789, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=444, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21700, PETRI_PLACES=558, PETRI_TRANSITIONS=970} [2024-12-02 15:49:55,672 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 395 predicate places. [2024-12-02 15:49:55,672 INFO L471 AbstractCegarLoop]: Abstraction has has 558 places, 970 transitions, 21700 flow [2024-12-02 15:49:55,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 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) [2024-12-02 15:49:55,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:49:55,673 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:49:55,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 15:49:55,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 15:49:55,873 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:49:55,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:49:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash 165577767, now seen corresponding path program 1 times [2024-12-02 15:49:55,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:49:55,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792645508] [2024-12-02 15:49:55,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:49:55,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:49:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:50:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:50:02,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:50:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792645508] [2024-12-02 15:50:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792645508] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:50:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682851105] [2024-12-02 15:50:02,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:50:02,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:50:02,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:50:02,576 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:50:02,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 15:50:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:50:02,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-12-02 15:50:02,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:50:03,041 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 16 treesize of output 12 [2024-12-02 15:50:03,079 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 15 treesize of output 11 [2024-12-02 15:50:03,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:50:03,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:50:03,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:50:03,431 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:50:03,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:50:03,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 60 [2024-12-02 15:50:03,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 60 [2024-12-02 15:50:03,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 69 [2024-12-02 15:50:03,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:03,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2024-12-02 15:50:04,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:50:04,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:50:04,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 114 [2024-12-02 15:50:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:50:40,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:50:46,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:50:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:50:46,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682851105] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:50:46,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:50:46,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [12, 28] total 53 [2024-12-02 15:50:46,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176668406] [2024-12-02 15:50:46,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:50:46,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 15:50:46,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:50:46,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 15:50:46,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=2591, Unknown=10, NotChecked=0, Total=2862 [2024-12-02 15:51:02,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:51:02,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 970 transitions, 21700 flow. Second operand has 16 states, 16 states have (on average 128.3125) internal successors, (2053), 16 states have internal predecessors, (2053), 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) [2024-12-02 15:51:02,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:51:02,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:51:02,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:51:21,122 INFO L124 PetriNetUnfolderBase]: 1580/5222 cut-off events. [2024-12-02 15:51:21,122 INFO L125 PetriNetUnfolderBase]: For 122120/122457 co-relation queries the response was YES. [2024-12-02 15:51:21,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37104 conditions, 5222 events. 1580/5222 cut-off events. For 122120/122457 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 46617 event pairs, 92 based on Foata normal form. 143/5352 useless extension candidates. Maximal degree in co-relation 36818. Up to 1553 conditions per place. [2024-12-02 15:51:21,183 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 759 selfloop transitions, 343 changer transitions 42/1319 dead transitions. [2024-12-02 15:51:21,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 1319 transitions, 29488 flow [2024-12-02 15:51:21,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 15:51:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 15:51:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3007 transitions. [2024-12-02 15:51:21,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8334257206208425 [2024-12-02 15:51:21,186 INFO L175 Difference]: Start difference. First operand has 558 places, 970 transitions, 21700 flow. Second operand 22 states and 3007 transitions. [2024-12-02 15:51:21,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 1319 transitions, 29488 flow [2024-12-02 15:51:21,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1319 transitions, 29033 flow, removed 14 selfloop flow, removed 10 redundant places. [2024-12-02 15:51:21,921 INFO L231 Difference]: Finished difference. Result has 583 places, 1130 transitions, 25259 flow [2024-12-02 15:51:21,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=21342, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=25259, PETRI_PLACES=583, PETRI_TRANSITIONS=1130} [2024-12-02 15:51:21,922 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 420 predicate places. [2024-12-02 15:51:21,922 INFO L471 AbstractCegarLoop]: Abstraction has has 583 places, 1130 transitions, 25259 flow [2024-12-02 15:51:21,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.3125) internal successors, (2053), 16 states have internal predecessors, (2053), 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) [2024-12-02 15:51:21,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:51:21,923 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:51:21,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 15:51:22,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 15:51:22,123 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:51:22,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:22,124 INFO L85 PathProgramCache]: Analyzing trace with hash 404442017, now seen corresponding path program 2 times [2024-12-02 15:51:22,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:22,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193756773] [2024-12-02 15:51:22,125 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:51:22,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:22,142 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:51:22,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:51:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:51:23,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:23,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193756773] [2024-12-02 15:51:23,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193756773] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:23,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:23,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:51:23,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325375971] [2024-12-02 15:51:23,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:23,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:51:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:23,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:51:23,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:25,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 15:51:25,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1130 transitions, 25259 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:51:25,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:51:25,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 15:51:25,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:51:27,888 INFO L124 PetriNetUnfolderBase]: 1405/5040 cut-off events. [2024-12-02 15:51:27,889 INFO L125 PetriNetUnfolderBase]: For 130954/131480 co-relation queries the response was YES. [2024-12-02 15:51:27,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37038 conditions, 5040 events. 1405/5040 cut-off events. For 130954/131480 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 46259 event pairs, 59 based on Foata normal form. 196/5206 useless extension candidates. Maximal degree in co-relation 36748. Up to 1045 conditions per place. [2024-12-02 15:51:27,942 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 631 selfloop transitions, 229 changer transitions 4/1379 dead transitions. [2024-12-02 15:51:27,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1379 transitions, 31041 flow [2024-12-02 15:51:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:51:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-02 15:51:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1728 transitions. [2024-12-02 15:51:27,944 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8780487804878049 [2024-12-02 15:51:27,944 INFO L175 Difference]: Start difference. First operand has 583 places, 1130 transitions, 25259 flow. Second operand 12 states and 1728 transitions. [2024-12-02 15:51:27,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1379 transitions, 31041 flow [2024-12-02 15:51:29,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 1379 transitions, 30645 flow, removed 187 selfloop flow, removed 2 redundant places. [2024-12-02 15:51:29,124 INFO L231 Difference]: Finished difference. Result has 598 places, 1236 transitions, 27978 flow [2024-12-02 15:51:29,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=24986, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27978, PETRI_PLACES=598, PETRI_TRANSITIONS=1236} [2024-12-02 15:51:29,125 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 435 predicate places. [2024-12-02 15:51:29,125 INFO L471 AbstractCegarLoop]: Abstraction has has 598 places, 1236 transitions, 27978 flow [2024-12-02 15:51:29,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:51:29,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:51:29,126 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:51:29,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 15:51:29,126 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:51:29,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1150160489, now seen corresponding path program 3 times [2024-12-02 15:51:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:29,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314758368] [2024-12-02 15:51:29,129 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:51:29,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:29,155 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:51:29,155 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:51:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:51:30,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:30,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314758368] [2024-12-02 15:51:30,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314758368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:51:30,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:51:30,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:51:30,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873432044] [2024-12-02 15:51:30,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:30,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:51:30,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:30,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:51:30,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:51:31,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 15:51:31,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1236 transitions, 27978 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:51:31,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:51:31,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 15:51:31,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:51:34,344 INFO L124 PetriNetUnfolderBase]: 1530/5453 cut-off events. [2024-12-02 15:51:34,344 INFO L125 PetriNetUnfolderBase]: For 165886/166448 co-relation queries the response was YES. [2024-12-02 15:51:34,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41339 conditions, 5453 events. 1530/5453 cut-off events. For 165886/166448 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 50936 event pairs, 62 based on Foata normal form. 247/5669 useless extension candidates. Maximal degree in co-relation 41042. Up to 1684 conditions per place. [2024-12-02 15:51:34,401 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 571 selfloop transitions, 284 changer transitions 10/1380 dead transitions. [2024-12-02 15:51:34,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1380 transitions, 33743 flow [2024-12-02 15:51:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 15:51:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 15:51:34,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2132 transitions. [2024-12-02 15:51:34,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2024-12-02 15:51:34,403 INFO L175 Difference]: Start difference. First operand has 598 places, 1236 transitions, 27978 flow. Second operand 15 states and 2132 transitions. [2024-12-02 15:51:34,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1380 transitions, 33743 flow [2024-12-02 15:51:35,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 1380 transitions, 33211 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-12-02 15:51:35,396 INFO L231 Difference]: Finished difference. Result has 613 places, 1322 transitions, 31600 flow [2024-12-02 15:51:35,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=27543, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31600, PETRI_PLACES=613, PETRI_TRANSITIONS=1322} [2024-12-02 15:51:35,397 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 450 predicate places. [2024-12-02 15:51:35,397 INFO L471 AbstractCegarLoop]: Abstraction has has 613 places, 1322 transitions, 31600 flow [2024-12-02 15:51:35,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:51:35,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:51:35,398 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:51:35,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 15:51:35,398 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:51:35,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:51:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1282449981, now seen corresponding path program 4 times [2024-12-02 15:51:35,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:51:35,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871406977] [2024-12-02 15:51:35,399 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:51:35,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:51:35,421 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:51:35,421 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:51:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:51:37,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:51:37,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871406977] [2024-12-02 15:51:37,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871406977] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:51:37,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017272838] [2024-12-02 15:51:37,962 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:51:37,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:51:37,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:51:37,964 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:51:37,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 15:51:38,129 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:51:38,129 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:51:38,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-12-02 15:51:38,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:51:38,624 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 15 treesize of output 11 [2024-12-02 15:51:38,668 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 13 treesize of output 9 [2024-12-02 15:51:38,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 15:51:38,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 15:51:38,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 15:51:39,104 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-02 15:51:39,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 13 [2024-12-02 15:51:39,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 55 [2024-12-02 15:51:39,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-12-02 15:51:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-02 15:51:39,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2024-12-02 15:51:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:51:39,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:51:39,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-02 15:51:56,042 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 15:51:56,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:51:58,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:51:58,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:51:58,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:51:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:51:58,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017272838] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:51:58,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:51:58,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13, 27] total 50 [2024-12-02 15:51:58,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180603408] [2024-12-02 15:51:58,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:51:58,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:51:58,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:51:58,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:51:58,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=2246, Unknown=4, NotChecked=0, Total=2550 [2024-12-02 15:52:18,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-12-02 15:52:18,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1322 transitions, 31600 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:52:18,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:52:18,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-12-02 15:52:18,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:52:29,886 INFO L124 PetriNetUnfolderBase]: 2107/7132 cut-off events. [2024-12-02 15:52:29,886 INFO L125 PetriNetUnfolderBase]: For 239638/240396 co-relation queries the response was YES. [2024-12-02 15:52:29,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56109 conditions, 7132 events. 2107/7132 cut-off events. For 239638/240396 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 69738 event pairs, 147 based on Foata normal form. 223/7310 useless extension candidates. Maximal degree in co-relation 55804. Up to 1507 conditions per place. [2024-12-02 15:52:29,960 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 927 selfloop transitions, 616 changer transitions 14/1792 dead transitions. [2024-12-02 15:52:29,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 1792 transitions, 44484 flow [2024-12-02 15:52:29,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 15:52:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-12-02 15:52:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3562 transitions. [2024-12-02 15:52:29,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8353658536585366 [2024-12-02 15:52:29,964 INFO L175 Difference]: Start difference. First operand has 613 places, 1322 transitions, 31600 flow. Second operand 26 states and 3562 transitions. [2024-12-02 15:52:29,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 1792 transitions, 44484 flow [2024-12-02 15:52:31,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 1792 transitions, 44218 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-12-02 15:52:31,433 INFO L231 Difference]: Finished difference. Result has 648 places, 1501 transitions, 38590 flow [2024-12-02 15:52:31,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=31409, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=443, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=832, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=38590, PETRI_PLACES=648, PETRI_TRANSITIONS=1501} [2024-12-02 15:52:31,434 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 485 predicate places. [2024-12-02 15:52:31,434 INFO L471 AbstractCegarLoop]: Abstraction has has 648 places, 1501 transitions, 38590 flow [2024-12-02 15:52:31,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:52:31,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:52:31,434 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:52:31,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-12-02 15:52:31,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 15:52:31,635 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:52:31,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:52:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2021282201, now seen corresponding path program 5 times [2024-12-02 15:52:31,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:52:31,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367954657] [2024-12-02 15:52:31,636 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:52:31,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:52:31,670 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:52:31,670 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:52:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 237 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:52:38,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:52:38,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367954657] [2024-12-02 15:52:38,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367954657] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:52:38,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282820267] [2024-12-02 15:52:38,911 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:52:38,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:52:38,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:52:38,912 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:52:38,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 15:52:39,095 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:52:39,095 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:52:39,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-12-02 15:52:39,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:52:39,140 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 16 treesize of output 12 [2024-12-02 15:52:39,184 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 15 treesize of output 11 [2024-12-02 15:52:39,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:52:39,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:52:39,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-02 15:52:39,647 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:52:39,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:52:39,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 60 [2024-12-02 15:52:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:39,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 69 [2024-12-02 15:52:40,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2024-12-02 15:52:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2024-12-02 15:52:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:52:40,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:52:40,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 111 [2024-12-02 15:53:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 15:53:08,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:53:12,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:53:12,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:53:12,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:53:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:53:12,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282820267] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:53:12,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:53:12,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [31, 26] total 53 [2024-12-02 15:53:12,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136503124] [2024-12-02 15:53:12,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:53:12,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:53:12,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:53:12,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:53:12,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=2586, Unknown=7, NotChecked=0, Total=2862 [2024-12-02 15:53:37,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-12-02 15:53:37,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 1501 transitions, 38590 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:53:37,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:53:37,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-12-02 15:53:37,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:54:04,784 INFO L124 PetriNetUnfolderBase]: 2328/7878 cut-off events. [2024-12-02 15:54:04,785 INFO L125 PetriNetUnfolderBase]: For 287846/288684 co-relation queries the response was YES. [2024-12-02 15:54:04,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64423 conditions, 7878 events. 2328/7878 cut-off events. For 287846/288684 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 78976 event pairs, 168 based on Foata normal form. 252/8083 useless extension candidates. Maximal degree in co-relation 64101. Up to 1701 conditions per place. [2024-12-02 15:54:04,886 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 998 selfloop transitions, 670 changer transitions 14/1917 dead transitions. [2024-12-02 15:54:04,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1917 transitions, 50039 flow [2024-12-02 15:54:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 15:54:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-12-02 15:54:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3436 transitions. [2024-12-02 15:54:04,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8380487804878048 [2024-12-02 15:54:04,889 INFO L175 Difference]: Start difference. First operand has 648 places, 1501 transitions, 38590 flow. Second operand 25 states and 3436 transitions. [2024-12-02 15:54:04,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 1917 transitions, 50039 flow [2024-12-02 15:54:06,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 1917 transitions, 49594 flow, removed 147 selfloop flow, removed 3 redundant places. [2024-12-02 15:54:06,933 INFO L231 Difference]: Finished difference. Result has 679 places, 1573 transitions, 42643 flow [2024-12-02 15:54:06,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=38197, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=600, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=880, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=42643, PETRI_PLACES=679, PETRI_TRANSITIONS=1573} [2024-12-02 15:54:06,934 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 516 predicate places. [2024-12-02 15:54:06,934 INFO L471 AbstractCegarLoop]: Abstraction has has 679 places, 1573 transitions, 42643 flow [2024-12-02 15:54:06,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:54:06,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:54:06,935 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:54:06,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-12-02 15:54:07,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:54:07,135 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:54:07,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:54:07,137 INFO L85 PathProgramCache]: Analyzing trace with hash -364650479, now seen corresponding path program 6 times [2024-12-02 15:54:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:54:07,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497606112] [2024-12-02 15:54:07,137 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 15:54:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:54:07,152 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 15:54:07,152 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:54:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:54:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:54:08,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497606112] [2024-12-02 15:54:08,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497606112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:54:08,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:54:08,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:54:08,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20364979] [2024-12-02 15:54:08,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:54:08,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:54:08,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:54:08,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:54:08,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:54:09,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 15:54:09,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 679 places, 1573 transitions, 42643 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:54:09,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:54:09,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 15:54:09,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:54:13,347 INFO L124 PetriNetUnfolderBase]: 2018/7301 cut-off events. [2024-12-02 15:54:13,347 INFO L125 PetriNetUnfolderBase]: For 293544/294399 co-relation queries the response was YES. [2024-12-02 15:54:13,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61123 conditions, 7301 events. 2018/7301 cut-off events. For 293544/294399 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 74303 event pairs, 63 based on Foata normal form. 339/7604 useless extension candidates. Maximal degree in co-relation 60795. Up to 2255 conditions per place. [2024-12-02 15:54:13,426 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 644 selfloop transitions, 416 changer transitions 5/1612 dead transitions. [2024-12-02 15:54:13,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 1612 transitions, 45470 flow [2024-12-02 15:54:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:54:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:54:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1572 transitions. [2024-12-02 15:54:13,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8713968957871396 [2024-12-02 15:54:13,427 INFO L175 Difference]: Start difference. First operand has 679 places, 1573 transitions, 42643 flow. Second operand 11 states and 1572 transitions. [2024-12-02 15:54:13,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 1612 transitions, 45470 flow [2024-12-02 15:54:15,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 1612 transitions, 44968 flow, removed 44 selfloop flow, removed 7 redundant places. [2024-12-02 15:54:15,229 INFO L231 Difference]: Finished difference. Result has 685 places, 1573 transitions, 43128 flow [2024-12-02 15:54:15,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=42145, PETRI_DIFFERENCE_MINUEND_PLACES=672, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=43128, PETRI_PLACES=685, PETRI_TRANSITIONS=1573} [2024-12-02 15:54:15,230 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 522 predicate places. [2024-12-02 15:54:15,230 INFO L471 AbstractCegarLoop]: Abstraction has has 685 places, 1573 transitions, 43128 flow [2024-12-02 15:54:15,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:54:15,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:54:15,230 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:54:15,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 15:54:15,230 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:54:15,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:54:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash 196892099, now seen corresponding path program 7 times [2024-12-02 15:54:15,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:54:15,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183491404] [2024-12-02 15:54:15,232 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:54:15,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:54:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:54:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:54:23,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:54:23,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183491404] [2024-12-02 15:54:23,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183491404] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:54:23,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855846264] [2024-12-02 15:54:23,183 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:54:23,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:54:23,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:54:23,185 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:54:23,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 15:54:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:54:23,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-12-02 15:54:23,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:54:23,692 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 16 treesize of output 12 [2024-12-02 15:54:23,728 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 15 treesize of output 11 [2024-12-02 15:54:23,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:54:23,927 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:54:23,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:54:24,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2024-12-02 15:54:24,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2024-12-02 15:54:24,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2024-12-02 15:54:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 69 [2024-12-02 15:54:24,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2024-12-02 15:54:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2024-12-02 15:54:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:54:24,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:54:24,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 111 [2024-12-02 15:54:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:54:44,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:54:49,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:54:49,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:54:49,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:54:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:54:49,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855846264] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:54:49,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:54:49,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12, 28] total 50 [2024-12-02 15:54:49,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447227411] [2024-12-02 15:54:49,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:54:49,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:54:49,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:54:49,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:54:49,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=2300, Unknown=5, NotChecked=0, Total=2550 [2024-12-02 15:55:17,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-12-02 15:55:17,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 1573 transitions, 43128 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:55:17,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:55:17,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-12-02 15:55:17,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:55:41,381 INFO L124 PetriNetUnfolderBase]: 2519/8550 cut-off events. [2024-12-02 15:55:41,381 INFO L125 PetriNetUnfolderBase]: For 374482/375619 co-relation queries the response was YES. [2024-12-02 15:55:41,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73680 conditions, 8550 events. 2519/8550 cut-off events. For 374482/375619 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 87522 event pairs, 123 based on Foata normal form. 371/8874 useless extension candidates. Maximal degree in co-relation 73345. Up to 1926 conditions per place. [2024-12-02 15:55:41,499 INFO L140 encePairwiseOnDemand]: 141/164 looper letters, 994 selfloop transitions, 760 changer transitions 8/1997 dead transitions. [2024-12-02 15:55:41,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 1997 transitions, 56928 flow [2024-12-02 15:55:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:55:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 15:55:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2907 transitions. [2024-12-02 15:55:41,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440766550522648 [2024-12-02 15:55:41,502 INFO L175 Difference]: Start difference. First operand has 685 places, 1573 transitions, 43128 flow. Second operand 21 states and 2907 transitions. [2024-12-02 15:55:41,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 1997 transitions, 56928 flow [2024-12-02 15:55:43,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 699 places, 1997 transitions, 56078 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-12-02 15:55:43,827 INFO L231 Difference]: Finished difference. Result has 707 places, 1729 transitions, 50698 flow [2024-12-02 15:55:43,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=42439, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=606, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=50698, PETRI_PLACES=707, PETRI_TRANSITIONS=1729} [2024-12-02 15:55:43,828 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 544 predicate places. [2024-12-02 15:55:43,828 INFO L471 AbstractCegarLoop]: Abstraction has has 707 places, 1729 transitions, 50698 flow [2024-12-02 15:55:43,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:55:43,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:55:43,829 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:55:43,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-12-02 15:55:44,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 15:55:44,029 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:55:44,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:55:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1871214609, now seen corresponding path program 8 times [2024-12-02 15:55:44,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:55:44,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781522615] [2024-12-02 15:55:44,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:55:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:55:44,047 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:55:44,047 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:55:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:55:45,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:55:45,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781522615] [2024-12-02 15:55:45,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781522615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:55:45,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:55:45,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:55:45,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79623400] [2024-12-02 15:55:45,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:55:45,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:55:45,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:55:45,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:55:45,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:55:46,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 15:55:46,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 1729 transitions, 50698 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:55:46,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:55:46,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 15:55:46,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:55:51,261 INFO L124 PetriNetUnfolderBase]: 2318/8362 cut-off events. [2024-12-02 15:55:51,262 INFO L125 PetriNetUnfolderBase]: For 403777/404799 co-relation queries the response was YES. [2024-12-02 15:55:51,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74275 conditions, 8362 events. 2318/8362 cut-off events. For 403777/404799 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 87910 event pairs, 73 based on Foata normal form. 298/8617 useless extension candidates. Maximal degree in co-relation 73936. Up to 2386 conditions per place. [2024-12-02 15:55:51,373 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 688 selfloop transitions, 603 changer transitions 6/1859 dead transitions. [2024-12-02 15:55:51,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 1859 transitions, 56897 flow [2024-12-02 15:55:51,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:55:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 15:55:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1576 transitions. [2024-12-02 15:55:51,375 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8736141906873615 [2024-12-02 15:55:51,375 INFO L175 Difference]: Start difference. First operand has 707 places, 1729 transitions, 50698 flow. Second operand 11 states and 1576 transitions. [2024-12-02 15:55:51,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 717 places, 1859 transitions, 56897 flow [2024-12-02 15:55:54,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 1859 transitions, 56550 flow, removed 68 selfloop flow, removed 5 redundant places. [2024-12-02 15:55:54,218 INFO L231 Difference]: Finished difference. Result has 720 places, 1800 transitions, 55365 flow [2024-12-02 15:55:54,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=50364, PETRI_DIFFERENCE_MINUEND_PLACES=702, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=534, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=55365, PETRI_PLACES=720, PETRI_TRANSITIONS=1800} [2024-12-02 15:55:54,219 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 557 predicate places. [2024-12-02 15:55:54,219 INFO L471 AbstractCegarLoop]: Abstraction has has 720 places, 1800 transitions, 55365 flow [2024-12-02 15:55:54,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:55:54,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:55:54,220 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:55:54,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 15:55:54,220 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:55:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:55:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash -736014605, now seen corresponding path program 9 times [2024-12-02 15:55:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:55:54,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886119165] [2024-12-02 15:55:54,222 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 15:55:54,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:55:54,243 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 15:55:54,243 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:55:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:55:56,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:55:56,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886119165] [2024-12-02 15:55:56,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886119165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:55:56,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:55:56,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:55:56,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619482258] [2024-12-02 15:55:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:55:56,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:55:56,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:55:56,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:55:56,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:55:57,752 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 15:55:57,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 1800 transitions, 55365 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:55:57,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:55:57,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 15:55:57,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:56:02,948 INFO L124 PetriNetUnfolderBase]: 2397/8666 cut-off events. [2024-12-02 15:56:02,948 INFO L125 PetriNetUnfolderBase]: For 498645/499854 co-relation queries the response was YES. [2024-12-02 15:56:03,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80479 conditions, 8666 events. 2397/8666 cut-off events. For 498645/499854 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 92069 event pairs, 69 based on Foata normal form. 457/9076 useless extension candidates. Maximal degree in co-relation 80131. Up to 2480 conditions per place. [2024-12-02 15:56:03,068 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 673 selfloop transitions, 723 changer transitions 10/1968 dead transitions. [2024-12-02 15:56:03,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 733 places, 1968 transitions, 64161 flow [2024-12-02 15:56:03,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:56:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 15:56:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2002 transitions. [2024-12-02 15:56:03,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8719512195121951 [2024-12-02 15:56:03,069 INFO L175 Difference]: Start difference. First operand has 720 places, 1800 transitions, 55365 flow. Second operand 14 states and 2002 transitions. [2024-12-02 15:56:03,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 733 places, 1968 transitions, 64161 flow [2024-12-02 15:56:06,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 731 places, 1968 transitions, 63956 flow, removed 62 selfloop flow, removed 2 redundant places. [2024-12-02 15:56:06,578 INFO L231 Difference]: Finished difference. Result has 738 places, 1899 transitions, 62027 flow [2024-12-02 15:56:06,579 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=55194, PETRI_DIFFERENCE_MINUEND_PLACES=718, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=625, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=62027, PETRI_PLACES=738, PETRI_TRANSITIONS=1899} [2024-12-02 15:56:06,579 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 575 predicate places. [2024-12-02 15:56:06,579 INFO L471 AbstractCegarLoop]: Abstraction has has 738 places, 1899 transitions, 62027 flow [2024-12-02 15:56:06,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:56:06,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:56:06,580 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:56:06,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 15:56:06,580 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:56:06,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:56:06,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1954484173, now seen corresponding path program 10 times [2024-12-02 15:56:06,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:56:06,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693880231] [2024-12-02 15:56:06,582 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:56:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:56:06,602 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:56:06,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:56:08,313 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:56:08,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:56:08,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693880231] [2024-12-02 15:56:08,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693880231] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:56:08,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222781936] [2024-12-02 15:56:08,313 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 15:56:08,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:56:08,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:56:08,315 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:56:08,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 15:56:08,508 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 15:56:08,508 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:56:08,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-12-02 15:56:08,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:56:08,769 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 15 treesize of output 11 [2024-12-02 15:56:08,807 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 13 treesize of output 9 [2024-12-02 15:56:08,904 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-02 15:56:08,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 13 [2024-12-02 15:56:08,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 15:56:09,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 15:56:09,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 15:56:09,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 55 [2024-12-02 15:56:09,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2024-12-02 15:56:09,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-12-02 15:56:09,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-02 15:56:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:56:09,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:56:09,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-02 15:56:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-12-02 15:56:21,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:56:24,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:56:24,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:56:24,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:56:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:56:24,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222781936] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:56:24,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:56:24,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13, 19] total 42 [2024-12-02 15:56:24,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856986338] [2024-12-02 15:56:24,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:56:24,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:56:24,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:56:24,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:56:24,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1517, Unknown=3, NotChecked=0, Total=1806 [2024-12-02 15:56:58,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-12-02 15:56:58,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 738 places, 1899 transitions, 62027 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:56:58,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:56:58,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-12-02 15:56:58,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:57:15,650 INFO L124 PetriNetUnfolderBase]: 2912/9787 cut-off events. [2024-12-02 15:57:15,650 INFO L125 PetriNetUnfolderBase]: For 573832/575329 co-relation queries the response was YES. [2024-12-02 15:57:15,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93498 conditions, 9787 events. 2912/9787 cut-off events. For 573832/575329 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 102967 event pairs, 143 based on Foata normal form. 547/10283 useless extension candidates. Maximal degree in co-relation 93138. Up to 2138 conditions per place. [2024-12-02 15:57:15,789 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 1139 selfloop transitions, 951 changer transitions 10/2335 dead transitions. [2024-12-02 15:57:15,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 759 places, 2335 transitions, 75341 flow [2024-12-02 15:57:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 15:57:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 15:57:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3047 transitions. [2024-12-02 15:57:15,792 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8445121951219512 [2024-12-02 15:57:15,792 INFO L175 Difference]: Start difference. First operand has 738 places, 1899 transitions, 62027 flow. Second operand 22 states and 3047 transitions. [2024-12-02 15:57:15,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 759 places, 2335 transitions, 75341 flow [2024-12-02 15:57:19,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 754 places, 2335 transitions, 73550 flow, removed 130 selfloop flow, removed 5 redundant places. [2024-12-02 15:57:19,962 INFO L231 Difference]: Finished difference. Result has 765 places, 1998 transitions, 66624 flow [2024-12-02 15:57:19,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=60450, PETRI_DIFFERENCE_MINUEND_PLACES=733, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=852, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1007, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=66624, PETRI_PLACES=765, PETRI_TRANSITIONS=1998} [2024-12-02 15:57:19,963 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 602 predicate places. [2024-12-02 15:57:19,963 INFO L471 AbstractCegarLoop]: Abstraction has has 765 places, 1998 transitions, 66624 flow [2024-12-02 15:57:19,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:57:19,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:57:19,964 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:57:19,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-12-02 15:57:20,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:57:20,164 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:57:20,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:57:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash -143490367, now seen corresponding path program 11 times [2024-12-02 15:57:20,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:57:20,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343880967] [2024-12-02 15:57:20,166 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:57:20,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:57:20,203 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:57:20,203 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:57:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:57:22,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:57:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343880967] [2024-12-02 15:57:22,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343880967] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:57:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655855014] [2024-12-02 15:57:22,291 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 15:57:22,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:57:22,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:57:22,293 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:57:22,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 15:57:22,510 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 15:57:22,510 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:57:22,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-12-02 15:57:22,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:57:22,841 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 16 treesize of output 12 [2024-12-02 15:57:22,883 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 15 treesize of output 11 [2024-12-02 15:57:23,038 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 15:57:23,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-12-02 15:57:23,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-02 15:57:23,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-02 15:57:23,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-12-02 15:57:23,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2024-12-02 15:57:23,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2024-12-02 15:57:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2024-12-02 15:57:23,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:23,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 93 [2024-12-02 15:57:24,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:57:24,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:57:24,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 111 [2024-12-02 15:57:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:57:36,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:57:44,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:57:44,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 [2024-12-02 15:57:44,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-12-02 15:57:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:57:44,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655855014] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:57:44,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:57:44,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13, 28] total 52 [2024-12-02 15:57:44,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141871610] [2024-12-02 15:57:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:57:44,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:57:44,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:57:44,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:57:44,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=2484, Unknown=4, NotChecked=0, Total=2756 [2024-12-02 15:58:10,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 164 [2024-12-02 15:58:10,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 765 places, 1998 transitions, 66624 flow. Second operand has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:58:10,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:58:10,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 164 [2024-12-02 15:58:10,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:58:36,717 INFO L124 PetriNetUnfolderBase]: 2921/9828 cut-off events. [2024-12-02 15:58:36,717 INFO L125 PetriNetUnfolderBase]: For 613129/614627 co-relation queries the response was YES. [2024-12-02 15:58:36,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96039 conditions, 9828 events. 2921/9828 cut-off events. For 613129/614627 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 103552 event pairs, 147 based on Foata normal form. 522/10300 useless extension candidates. Maximal degree in co-relation 95669. Up to 2137 conditions per place. [2024-12-02 15:58:36,875 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 1143 selfloop transitions, 964 changer transitions 5/2347 dead transitions. [2024-12-02 15:58:36,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 2347 transitions, 77200 flow [2024-12-02 15:58:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:58:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 15:58:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2913 transitions. [2024-12-02 15:58:36,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8458188153310104 [2024-12-02 15:58:36,878 INFO L175 Difference]: Start difference. First operand has 765 places, 1998 transitions, 66624 flow. Second operand 21 states and 2913 transitions. [2024-12-02 15:58:36,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 785 places, 2347 transitions, 77200 flow [2024-12-02 15:58:41,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 2347 transitions, 75758 flow, removed 132 selfloop flow, removed 7 redundant places. [2024-12-02 15:58:41,508 INFO L231 Difference]: Finished difference. Result has 782 places, 2019 transitions, 68206 flow [2024-12-02 15:58:41,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=65292, PETRI_DIFFERENCE_MINUEND_PLACES=758, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=946, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=68206, PETRI_PLACES=782, PETRI_TRANSITIONS=2019} [2024-12-02 15:58:41,509 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 619 predicate places. [2024-12-02 15:58:41,509 INFO L471 AbstractCegarLoop]: Abstraction has has 782 places, 2019 transitions, 68206 flow [2024-12-02 15:58:41,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.42857142857142) internal successors, (1812), 14 states have internal predecessors, (1812), 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) [2024-12-02 15:58:41,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:58:41,509 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:58:41,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-12-02 15:58:41,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:58:41,710 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:58:41,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:58:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1397616555, now seen corresponding path program 12 times [2024-12-02 15:58:41,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:58:41,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161406670] [2024-12-02 15:58:41,712 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 15:58:41,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:58:41,739 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 15:58:41,739 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:58:43,770 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:58:43,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:58:43,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161406670] [2024-12-02 15:58:43,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161406670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:58:43,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:58:43,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:58:43,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10503573] [2024-12-02 15:58:43,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:58:43,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:58:43,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:58:43,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:58:43,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:58:45,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 15:58:45,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 2019 transitions, 68206 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:58:45,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:58:45,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 15:58:45,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:58:51,200 INFO L124 PetriNetUnfolderBase]: 2709/9716 cut-off events. [2024-12-02 15:58:51,200 INFO L125 PetriNetUnfolderBase]: For 680078/681441 co-relation queries the response was YES. [2024-12-02 15:58:51,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97839 conditions, 9716 events. 2709/9716 cut-off events. For 680078/681441 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 105506 event pairs, 93 based on Foata normal form. 568/10234 useless extension candidates. Maximal degree in co-relation 97469. Up to 2533 conditions per place. [2024-12-02 15:58:51,333 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 738 selfloop transitions, 922 changer transitions 8/2255 dead transitions. [2024-12-02 15:58:51,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 2255 transitions, 80466 flow [2024-12-02 15:58:51,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:58:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 15:58:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2007 transitions. [2024-12-02 15:58:51,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8741289198606271 [2024-12-02 15:58:51,335 INFO L175 Difference]: Start difference. First operand has 782 places, 2019 transitions, 68206 flow. Second operand 14 states and 2007 transitions. [2024-12-02 15:58:51,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 795 places, 2255 transitions, 80466 flow [2024-12-02 15:58:56,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 786 places, 2255 transitions, 79823 flow, removed 39 selfloop flow, removed 9 redundant places. [2024-12-02 15:58:56,290 INFO L231 Difference]: Finished difference. Result has 797 places, 2174 transitions, 77972 flow [2024-12-02 15:58:56,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=67617, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2019, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=784, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=77972, PETRI_PLACES=797, PETRI_TRANSITIONS=2174} [2024-12-02 15:58:56,291 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 634 predicate places. [2024-12-02 15:58:56,291 INFO L471 AbstractCegarLoop]: Abstraction has has 797 places, 2174 transitions, 77972 flow [2024-12-02 15:58:56,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 15:58:56,292 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:58:56,292 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:58:56,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 15:58:56,292 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 15:58:56,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:58:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2036657159, now seen corresponding path program 13 times [2024-12-02 15:58:56,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:58:56,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303993923] [2024-12-02 15:58:56,294 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:58:56,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:58:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:59:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:59:05,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:59:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303993923] [2024-12-02 15:59:05,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303993923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:59:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659991241] [2024-12-02 15:59:05,395 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 15:59:05,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:59:05,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:59:05,397 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:59:05,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 15:59:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:59:05,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-12-02 15:59:05,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:59:06,170 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 15 treesize of output 11 [2024-12-02 15:59:06,237 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 13 treesize of output 9 [2024-12-02 15:59:06,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 15:59:06,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 15:59:06,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 15:59:06,688 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-02 15:59:06,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 13 [2024-12-02 15:59:06,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:06,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2024-12-02 15:59:07,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2024-12-02 15:59:07,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2024-12-02 15:59:07,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2024-12-02 15:59:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 15:59:07,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:59:07,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 104 treesize of output 100 [2024-12-02 15:59:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 15:59:27,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:59:30,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 73 treesize of output 71 [2024-12-02 15:59:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 15:59:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659991241] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:59:30,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:59:30,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [12, 30] total 55 [2024-12-02 15:59:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650982582] [2024-12-02 15:59:30,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:59:30,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 15:59:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:59:30,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 15:59:30,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=2763, Unknown=5, NotChecked=0, Total=3080 [2024-12-02 15:59:52,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-12-02 15:59:52,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 797 places, 2174 transitions, 77972 flow. Second operand has 16 states, 16 states have (on average 128.3125) internal successors, (2053), 16 states have internal predecessors, (2053), 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) [2024-12-02 15:59:52,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:59:52,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-12-02 15:59:52,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 16:00:08,786 INFO L124 PetriNetUnfolderBase]: 3380/11180 cut-off events. [2024-12-02 16:00:08,786 INFO L125 PetriNetUnfolderBase]: For 808061/809875 co-relation queries the response was YES. [2024-12-02 16:00:08,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117958 conditions, 11180 events. 3380/11180 cut-off events. For 808061/809875 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 119746 event pairs, 220 based on Foata normal form. 825/11958 useless extension candidates. Maximal degree in co-relation 117569. Up to 2328 conditions per place. [2024-12-02 16:00:08,994 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 1099 selfloop transitions, 1257 changer transitions 29/2560 dead transitions. [2024-12-02 16:00:08,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 815 places, 2560 transitions, 94344 flow [2024-12-02 16:00:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 16:00:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-12-02 16:00:08,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2620 transitions. [2024-12-02 16:00:08,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8408215661103979 [2024-12-02 16:00:08,996 INFO L175 Difference]: Start difference. First operand has 797 places, 2174 transitions, 77972 flow. Second operand 19 states and 2620 transitions. [2024-12-02 16:00:08,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 815 places, 2560 transitions, 94344 flow [2024-12-02 16:00:16,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 814 places, 2560 transitions, 94026 flow, removed 139 selfloop flow, removed 1 redundant places. [2024-12-02 16:00:16,142 INFO L231 Difference]: Finished difference. Result has 825 places, 2316 transitions, 88517 flow [2024-12-02 16:00:16,143 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=77721, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=88517, PETRI_PLACES=825, PETRI_TRANSITIONS=2316} [2024-12-02 16:00:16,144 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 662 predicate places. [2024-12-02 16:00:16,144 INFO L471 AbstractCegarLoop]: Abstraction has has 825 places, 2316 transitions, 88517 flow [2024-12-02 16:00:16,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 128.3125) internal successors, (2053), 16 states have internal predecessors, (2053), 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) [2024-12-02 16:00:16,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 16:00:16,144 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 16:00:16,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-12-02 16:00:16,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae2ac42-f2ff-49d9-aca5-4e6ec7ddd557/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-12-02 16:00:16,345 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 16:00:16,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 16:00:16,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1577987705, now seen corresponding path program 14 times [2024-12-02 16:00:16,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 16:00:16,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935970915] [2024-12-02 16:00:16,347 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 16:00:16,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 16:00:16,367 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 16:00:16,367 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 16:00:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 16:00:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 16:00:18,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935970915] [2024-12-02 16:00:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935970915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 16:00:18,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 16:00:18,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 16:00:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190826302] [2024-12-02 16:00:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 16:00:18,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 16:00:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 16:00:18,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 16:00:18,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 16:00:20,184 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-12-02 16:00:20,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 825 places, 2316 transitions, 88517 flow. Second operand has 10 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 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) [2024-12-02 16:00:20,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 16:00:20,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-12-02 16:00:20,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand