./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.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_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:19:36,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:19:36,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:19:36,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:19:36,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:19:36,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:19:36,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:19:36,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:19:36,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:19:36,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:19:36,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:19:36,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:19:36,588 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:19:36,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:19:36,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:19:36,589 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:19:36,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:19:36,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:19:36,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:19:36,590 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:19:36,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:19:36,592 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:19:36,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:19:36,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:19:36,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:36,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:19:36,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:19:36,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:19:36,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:36,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:19:36,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:19:36,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:19:36,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:19:36,595 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_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-11-28 04:19:36,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:19:36,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:19:36,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:19:36,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:19:36,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:19:36,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-28 04:19:39,807 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/data/a39b87b43/6134be11c1d14c7d81bc327cd1f74425/FLAG67a7cea0d [2024-11-28 04:19:40,206 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:19:40,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-28 04:19:40,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/data/a39b87b43/6134be11c1d14c7d81bc327cd1f74425/FLAG67a7cea0d [2024-11-28 04:19:40,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/data/a39b87b43/6134be11c1d14c7d81bc327cd1f74425 [2024-11-28 04:19:40,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:19:40,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:19:40,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:19:40,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:19:40,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:19:40,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1907f40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40, skipping insertion in model container [2024-11-28 04:19:40,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:19:40,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:19:40,789 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:19:40,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:19:40,913 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:19:40,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40 WrapperNode [2024-11-28 04:19:40,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:19:40,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:19:40,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:19:40,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:19:40,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,957 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2024-11-28 04:19:40,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:19:40,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:19:40,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:19:40,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:19:40,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,978 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:19:40,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:19:40,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:19:40,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:19:40,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (1/1) ... [2024-11-28 04:19:40,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:41,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:19:41,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:19:41,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cd03ec-edfb-4280-8983-5b37072c4ec0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:19:41,069 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:19:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:19:41,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:19:41,071 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:19:41,241 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:19:41,242 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:19:41,482 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:19:41,482 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:19:41,513 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:19:41,513 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:19:41,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:19:41 BoogieIcfgContainer [2024-11-28 04:19:41,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:19:41,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:19:41,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:19:41,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:19:41,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:19:40" (1/3) ... [2024-11-28 04:19:41,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e37cb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:19:41, skipping insertion in model container [2024-11-28 04:19:41,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:40" (2/3) ... [2024-11-28 04:19:41,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e37cb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:19:41, skipping insertion in model container [2024-11-28 04:19:41,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:19:41" (3/3) ... [2024-11-28 04:19:41,524 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-11-28 04:19:41,539 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:19:41,541 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 95 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 04:19:41,541 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:19:41,644 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:19:41,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2024-11-28 04:19:41,755 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-11-28 04:19:41,759 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:19:41,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-28 04:19:41,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2024-11-28 04:19:41,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-11-28 04:19:41,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:19:41,802 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;@7a0cff0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:19:41,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 04:19:41,822 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:19:41,823 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-11-28 04:19:41,823 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:19:41,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:41,824 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] [2024-11-28 04:19:41,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:41,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:41,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2024-11-28 04:19:41,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:41,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149447650] [2024-11-28 04:19:41,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149447650] [2024-11-28 04:19:42,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149447650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:42,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:42,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:19:42,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503031253] [2024-11-28 04:19:42,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:42,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:19:42,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:42,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:19:42,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:19:43,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-28 04:19:43,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:43,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:43,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-28 04:19:43,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:43,438 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2024-11-28 04:19:43,438 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:19:43,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2024-11-28 04:19:43,446 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2024-11-28 04:19:43,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2024-11-28 04:19:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:19:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:19:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-28 04:19:43,468 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-28 04:19:43,473 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2024-11-28 04:19:43,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2024-11-28 04:19:43,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:19:43,490 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2024-11-28 04:19:43,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2024-11-28 04:19:43,499 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-28 04:19:43,500 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2024-11-28 04:19:43,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:43,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:43,500 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] [2024-11-28 04:19:43,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:19:43,501 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)] === [2024-11-28 04:19:43,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:43,504 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2024-11-28 04:19:43,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:43,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006335507] [2024-11-28 04:19:43,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:43,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:43,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006335507] [2024-11-28 04:19:43,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006335507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:43,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:43,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:19:44,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663866351] [2024-11-28 04:19:44,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:44,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:19:44,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:44,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:19:44,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:19:44,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-28 04:19:44,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:44,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:44,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-28 04:19:44,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:44,463 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2024-11-28 04:19:44,463 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2024-11-28 04:19:44,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3336 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2024-11-28 04:19:44,470 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-11-28 04:19:44,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2024-11-28 04:19:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:19:44,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:19:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-28 04:19:44,478 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-28 04:19:44,478 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2024-11-28 04:19:44,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2024-11-28 04:19:44,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:19:44,487 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2024-11-28 04:19:44,488 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2024-11-28 04:19:44,489 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-11-28 04:19:44,489 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2024-11-28 04:19:44,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:44,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:44,490 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] [2024-11-28 04:19:44,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:19:44,491 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:44,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:44,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2024-11-28 04:19:44,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:44,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995622249] [2024-11-28 04:19:44,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:44,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:44,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:44,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995622249] [2024-11-28 04:19:44,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995622249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:44,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:44,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:19:44,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981250252] [2024-11-28 04:19:44,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:44,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:19:44,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:44,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:19:44,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:19:45,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-28 04:19:45,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:45,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:45,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-28 04:19:45,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:45,623 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2024-11-28 04:19:45,630 INFO L125 PetriNetUnfolderBase]: For 589/609 co-relation queries the response was YES. [2024-11-28 04:19:45,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 589/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2024-11-28 04:19:45,642 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2024-11-28 04:19:45,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2024-11-28 04:19:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:19:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:19:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-28 04:19:45,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-28 04:19:45,648 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2024-11-28 04:19:45,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2024-11-28 04:19:45,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:19:45,666 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2024-11-28 04:19:45,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2024-11-28 04:19:45,669 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2024-11-28 04:19:45,669 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2024-11-28 04:19:45,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:45,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:45,670 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] [2024-11-28 04:19:45,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:19:45,670 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)] === [2024-11-28 04:19:45,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2024-11-28 04:19:45,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:45,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273309815] [2024-11-28 04:19:45,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:45,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:46,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:46,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273309815] [2024-11-28 04:19:46,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273309815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:46,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:46,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:19:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73630747] [2024-11-28 04:19:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:46,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:19:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:46,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:19:46,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:19:46,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-28 04:19:46,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:46,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:46,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-28 04:19:46,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:46,534 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2024-11-28 04:19:46,534 INFO L125 PetriNetUnfolderBase]: For 1618/1665 co-relation queries the response was YES. [2024-11-28 04:19:46,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1618/1665 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7721 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2024-11-28 04:19:46,545 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2024-11-28 04:19:46,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2024-11-28 04:19:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:19:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:19:46,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-28 04:19:46,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-28 04:19:46,547 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2024-11-28 04:19:46,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2024-11-28 04:19:46,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-28 04:19:46,564 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2024-11-28 04:19:46,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2024-11-28 04:19:46,565 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2024-11-28 04:19:46,565 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2024-11-28 04:19:46,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:46,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:46,565 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] [2024-11-28 04:19:46,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:19:46,566 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:46,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2024-11-28 04:19:46,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:46,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196902584] [2024-11-28 04:19:46,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:46,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:47,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:47,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196902584] [2024-11-28 04:19:47,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196902584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:47,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:47,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:19:47,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520589769] [2024-11-28 04:19:47,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:47,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:47,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:47,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:47,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:48,068 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:19:48,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:48,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:48,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:19:48,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:49,309 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2024-11-28 04:19:49,310 INFO L125 PetriNetUnfolderBase]: For 4918/5024 co-relation queries the response was YES. [2024-11-28 04:19:49,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4918/5024 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16801 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2024-11-28 04:19:49,330 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2024-11-28 04:19:49,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2024-11-28 04:19:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:19:49,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:19:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2024-11-28 04:19:49,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-11-28 04:19:49,339 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2024-11-28 04:19:49,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2024-11-28 04:19:49,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2024-11-28 04:19:49,390 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2024-11-28 04:19:49,391 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2024-11-28 04:19:49,391 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2024-11-28 04:19:49,391 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2024-11-28 04:19:49,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:49,392 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:49,392 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] [2024-11-28 04:19:49,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:19:49,393 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:49,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1013121371, now seen corresponding path program 2 times [2024-11-28 04:19:49,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:49,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409630218] [2024-11-28 04:19:49,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:19:49,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:49,416 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:19:49,417 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:19:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:50,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:50,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409630218] [2024-11-28 04:19:50,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409630218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:50,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:50,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:19:50,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341142852] [2024-11-28 04:19:50,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:50,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:50,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:50,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:50,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:50,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:19:50,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:50,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:50,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:19:50,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:52,100 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2024-11-28 04:19:52,101 INFO L125 PetriNetUnfolderBase]: For 11776/12020 co-relation queries the response was YES. [2024-11-28 04:19:52,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11776/12020 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28071 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2024-11-28 04:19:52,145 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2024-11-28 04:19:52,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2024-11-28 04:19:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:19:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:19:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2024-11-28 04:19:52,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2024-11-28 04:19:52,150 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2024-11-28 04:19:52,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2024-11-28 04:19:52,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-28 04:19:52,241 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2024-11-28 04:19:52,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2024-11-28 04:19:52,243 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2024-11-28 04:19:52,245 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2024-11-28 04:19:52,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:52,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:52,246 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] [2024-11-28 04:19:52,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:19:52,246 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:52,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:52,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2024-11-28 04:19:52,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:52,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170086858] [2024-11-28 04:19:52,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:19:52,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:52,282 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:19:52,286 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:19:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:53,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:53,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170086858] [2024-11-28 04:19:53,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170086858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:53,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:53,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:19:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19287713] [2024-11-28 04:19:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:53,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:53,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:53,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:53,690 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:19:53,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:53,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:53,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:19:53,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:54,986 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2024-11-28 04:19:54,986 INFO L125 PetriNetUnfolderBase]: For 17161/17542 co-relation queries the response was YES. [2024-11-28 04:19:55,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17161/17542 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28180 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2024-11-28 04:19:55,032 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2024-11-28 04:19:55,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2024-11-28 04:19:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:19:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 04:19:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2024-11-28 04:19:55,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2024-11-28 04:19:55,035 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2024-11-28 04:19:55,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2024-11-28 04:19:55,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-28 04:19:55,140 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2024-11-28 04:19:55,140 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2024-11-28 04:19:55,141 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2024-11-28 04:19:55,141 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2024-11-28 04:19:55,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:55,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:55,142 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] [2024-11-28 04:19:55,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:19:55,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:55,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:55,143 INFO L85 PathProgramCache]: Analyzing trace with hash -746214381, now seen corresponding path program 4 times [2024-11-28 04:19:55,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:55,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255071013] [2024-11-28 04:19:55,143 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:19:55,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:55,165 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:19:55,165 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:19:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:55,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:55,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255071013] [2024-11-28 04:19:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255071013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:55,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:55,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:19:55,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988844932] [2024-11-28 04:19:55,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:55,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:55,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:55,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:55,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:56,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:19:56,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:56,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:56,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:19:56,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:58,030 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2024-11-28 04:19:58,030 INFO L125 PetriNetUnfolderBase]: For 27047/27501 co-relation queries the response was YES. [2024-11-28 04:19:58,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27047/27501 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37130 event pairs, 137 based on Foata normal form. 155/4489 useless extension candidates. Maximal degree in co-relation 19425. Up to 812 conditions per place. [2024-11-28 04:19:58,067 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2024-11-28 04:19:58,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2024-11-28 04:19:58,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:19:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 04:19:58,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2024-11-28 04:19:58,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2024-11-28 04:19:58,072 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2024-11-28 04:19:58,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2024-11-28 04:19:58,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-28 04:19:58,179 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2024-11-28 04:19:58,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2024-11-28 04:19:58,180 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2024-11-28 04:19:58,181 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2024-11-28 04:19:58,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:58,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:58,181 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] [2024-11-28 04:19:58,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:19:58,181 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:19:58,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:58,187 INFO L85 PathProgramCache]: Analyzing trace with hash -190314597, now seen corresponding path program 5 times [2024-11-28 04:19:58,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:58,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620466176] [2024-11-28 04:19:58,188 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:19:58,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:58,211 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:19:58,211 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:19:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:58,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:58,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620466176] [2024-11-28 04:19:58,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620466176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:58,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:58,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:19:58,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94709773] [2024-11-28 04:19:58,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:58,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:19:58,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:58,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:19:58,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:19:59,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:19:59,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:19:59,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:59,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:19:59,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:01,232 INFO L124 PetriNetUnfolderBase]: 2099/5778 cut-off events. [2024-11-28 04:20:01,232 INFO L125 PetriNetUnfolderBase]: For 47576/48319 co-relation queries the response was YES. [2024-11-28 04:20:01,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 5778 events. 2099/5778 cut-off events. For 47576/48319 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52069 event pairs, 153 based on Foata normal form. 176/5910 useless extension candidates. Maximal degree in co-relation 27323. Up to 2201 conditions per place. [2024-11-28 04:20:01,277 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2024-11-28 04:20:01,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2024-11-28 04:20:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:20:01,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:20:01,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2024-11-28 04:20:01,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2024-11-28 04:20:01,281 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2024-11-28 04:20:01,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow [2024-11-28 04:20:01,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 750 transitions, 10974 flow, removed 81 selfloop flow, removed 7 redundant places. [2024-11-28 04:20:01,545 INFO L231 Difference]: Finished difference. Result has 217 places, 543 transitions, 8635 flow [2024-11-28 04:20:01,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8635, PETRI_PLACES=217, PETRI_TRANSITIONS=543} [2024-11-28 04:20:01,546 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 125 predicate places. [2024-11-28 04:20:01,546 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 543 transitions, 8635 flow [2024-11-28 04:20:01,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:01,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:01,547 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] [2024-11-28 04:20:01,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:20:01,547 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:01,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1542519371, now seen corresponding path program 1 times [2024-11-28 04:20:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845898090] [2024-11-28 04:20:01,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:02,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:02,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845898090] [2024-11-28 04:20:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845898090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:02,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:02,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:02,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392653428] [2024-11-28 04:20:02,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:02,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:02,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:02,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:02,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:02,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:20:02,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 543 transitions, 8635 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:02,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:02,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:20:02,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:04,547 INFO L124 PetriNetUnfolderBase]: 2618/6770 cut-off events. [2024-11-28 04:20:04,547 INFO L125 PetriNetUnfolderBase]: For 62106/62539 co-relation queries the response was YES. [2024-11-28 04:20:04,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34060 conditions, 6770 events. 2618/6770 cut-off events. For 62106/62539 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 60046 event pairs, 434 based on Foata normal form. 71/6787 useless extension candidates. Maximal degree in co-relation 33961. Up to 2208 conditions per place. [2024-11-28 04:20:04,595 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 610 selfloop transitions, 150 changer transitions 68/901 dead transitions. [2024-11-28 04:20:04,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 901 transitions, 13782 flow [2024-11-28 04:20:04,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:20:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:20:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2024-11-28 04:20:04,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2024-11-28 04:20:04,598 INFO L175 Difference]: Start difference. First operand has 217 places, 543 transitions, 8635 flow. Second operand 14 states and 995 transitions. [2024-11-28 04:20:04,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 901 transitions, 13782 flow [2024-11-28 04:20:04,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 901 transitions, 13437 flow, removed 93 selfloop flow, removed 5 redundant places. [2024-11-28 04:20:04,980 INFO L231 Difference]: Finished difference. Result has 233 places, 614 transitions, 9881 flow [2024-11-28 04:20:04,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8365, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9881, PETRI_PLACES=233, PETRI_TRANSITIONS=614} [2024-11-28 04:20:04,981 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 141 predicate places. [2024-11-28 04:20:04,981 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 614 transitions, 9881 flow [2024-11-28 04:20:04,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:04,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:04,981 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] [2024-11-28 04:20:04,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:20:04,981 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:04,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:04,982 INFO L85 PathProgramCache]: Analyzing trace with hash -339106291, now seen corresponding path program 6 times [2024-11-28 04:20:04,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712867695] [2024-11-28 04:20:04,982 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:20:04,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:04,998 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:20:04,998 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:05,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:05,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712867695] [2024-11-28 04:20:05,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712867695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:05,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:05,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667374893] [2024-11-28 04:20:05,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:05,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:05,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:05,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:05,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:06,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:20:06,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 614 transitions, 9881 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:06,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:06,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:20:06,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:08,155 INFO L124 PetriNetUnfolderBase]: 2379/6638 cut-off events. [2024-11-28 04:20:08,156 INFO L125 PetriNetUnfolderBase]: For 66231/67082 co-relation queries the response was YES. [2024-11-28 04:20:08,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34152 conditions, 6638 events. 2379/6638 cut-off events. For 66231/67082 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 62069 event pairs, 258 based on Foata normal form. 203/6801 useless extension candidates. Maximal degree in co-relation 34046. Up to 1769 conditions per place. [2024-11-28 04:20:08,204 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 579 selfloop transitions, 231 changer transitions 19/917 dead transitions. [2024-11-28 04:20:08,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 917 transitions, 14931 flow [2024-11-28 04:20:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-28 04:20:08,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2024-11-28 04:20:08,209 INFO L175 Difference]: Start difference. First operand has 233 places, 614 transitions, 9881 flow. Second operand 15 states and 1074 transitions. [2024-11-28 04:20:08,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 917 transitions, 14931 flow [2024-11-28 04:20:08,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 917 transitions, 14807 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-28 04:20:08,677 INFO L231 Difference]: Finished difference. Result has 254 places, 675 transitions, 11914 flow [2024-11-28 04:20:08,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9783, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11914, PETRI_PLACES=254, PETRI_TRANSITIONS=675} [2024-11-28 04:20:08,678 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 162 predicate places. [2024-11-28 04:20:08,679 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 675 transitions, 11914 flow [2024-11-28 04:20:08,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:08,679 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:08,679 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] [2024-11-28 04:20:08,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:20:08,679 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:08,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:08,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1534148209, now seen corresponding path program 7 times [2024-11-28 04:20:08,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:08,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682549474] [2024-11-28 04:20:08,680 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:20:08,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:09,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:09,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682549474] [2024-11-28 04:20:09,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682549474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:09,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:09,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:09,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011392486] [2024-11-28 04:20:09,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:09,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:09,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:09,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:09,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:09,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:20:09,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 675 transitions, 11914 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:09,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:09,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:20:09,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:12,031 INFO L124 PetriNetUnfolderBase]: 2422/6709 cut-off events. [2024-11-28 04:20:12,031 INFO L125 PetriNetUnfolderBase]: For 84327/85421 co-relation queries the response was YES. [2024-11-28 04:20:12,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36397 conditions, 6709 events. 2422/6709 cut-off events. For 84327/85421 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 62627 event pairs, 263 based on Foata normal form. 239/6909 useless extension candidates. Maximal degree in co-relation 36280. Up to 2017 conditions per place. [2024-11-28 04:20:12,102 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 616 selfloop transitions, 225 changer transitions 18/947 dead transitions. [2024-11-28 04:20:12,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 947 transitions, 16614 flow [2024-11-28 04:20:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2024-11-28 04:20:12,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2024-11-28 04:20:12,105 INFO L175 Difference]: Start difference. First operand has 254 places, 675 transitions, 11914 flow. Second operand 15 states and 1078 transitions. [2024-11-28 04:20:12,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 947 transitions, 16614 flow [2024-11-28 04:20:12,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 947 transitions, 16252 flow, removed 133 selfloop flow, removed 5 redundant places. [2024-11-28 04:20:12,758 INFO L231 Difference]: Finished difference. Result has 271 places, 701 transitions, 12705 flow [2024-11-28 04:20:12,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11583, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12705, PETRI_PLACES=271, PETRI_TRANSITIONS=701} [2024-11-28 04:20:12,760 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 179 predicate places. [2024-11-28 04:20:12,760 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 701 transitions, 12705 flow [2024-11-28 04:20:12,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:12,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:12,760 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] [2024-11-28 04:20:12,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:20:12,761 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:12,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1310405227, now seen corresponding path program 2 times [2024-11-28 04:20:12,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530518512] [2024-11-28 04:20:12,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:20:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:12,775 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:20:12,775 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:13,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:13,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530518512] [2024-11-28 04:20:13,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530518512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:13,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:13,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:13,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971961322] [2024-11-28 04:20:13,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:13,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:13,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:13,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:13,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:13,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:20:13,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 701 transitions, 12705 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:13,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:13,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:20:13,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:16,403 INFO L124 PetriNetUnfolderBase]: 3090/8007 cut-off events. [2024-11-28 04:20:16,403 INFO L125 PetriNetUnfolderBase]: For 101100/101618 co-relation queries the response was YES. [2024-11-28 04:20:16,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44802 conditions, 8007 events. 3090/8007 cut-off events. For 101100/101618 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 73558 event pairs, 555 based on Foata normal form. 106/8050 useless extension candidates. Maximal degree in co-relation 44679. Up to 2897 conditions per place. [2024-11-28 04:20:16,806 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 687 selfloop transitions, 186 changer transitions 53/1003 dead transitions. [2024-11-28 04:20:16,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1003 transitions, 17473 flow [2024-11-28 04:20:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:16,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2024-11-28 04:20:16,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2024-11-28 04:20:16,808 INFO L175 Difference]: Start difference. First operand has 271 places, 701 transitions, 12705 flow. Second operand 15 states and 1052 transitions. [2024-11-28 04:20:16,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1003 transitions, 17473 flow [2024-11-28 04:20:17,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1003 transitions, 16859 flow, removed 97 selfloop flow, removed 11 redundant places. [2024-11-28 04:20:17,443 INFO L231 Difference]: Finished difference. Result has 280 places, 720 transitions, 13017 flow [2024-11-28 04:20:17,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12140, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13017, PETRI_PLACES=280, PETRI_TRANSITIONS=720} [2024-11-28 04:20:17,444 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 188 predicate places. [2024-11-28 04:20:17,444 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 720 transitions, 13017 flow [2024-11-28 04:20:17,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:17,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:17,445 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] [2024-11-28 04:20:17,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:20:17,445 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:17,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:17,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1108754079, now seen corresponding path program 3 times [2024-11-28 04:20:17,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:17,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139148323] [2024-11-28 04:20:17,446 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:20:17,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:17,462 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:20:17,463 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:17,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:17,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139148323] [2024-11-28 04:20:17,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139148323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:17,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:17,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:17,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998784204] [2024-11-28 04:20:17,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:17,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:17,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:17,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:17,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:18,414 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:20:18,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 720 transitions, 13017 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:18,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:18,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:20:18,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:21,574 INFO L124 PetriNetUnfolderBase]: 3148/8156 cut-off events. [2024-11-28 04:20:21,574 INFO L125 PetriNetUnfolderBase]: For 102427/102929 co-relation queries the response was YES. [2024-11-28 04:20:21,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46963 conditions, 8156 events. 3148/8156 cut-off events. For 102427/102929 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 75156 event pairs, 483 based on Foata normal form. 102/8200 useless extension candidates. Maximal degree in co-relation 46837. Up to 2896 conditions per place. [2024-11-28 04:20:21,643 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 928 selfloop transitions, 137 changer transitions 41/1183 dead transitions. [2024-11-28 04:20:21,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1183 transitions, 20257 flow [2024-11-28 04:20:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2024-11-28 04:20:21,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2024-11-28 04:20:21,646 INFO L175 Difference]: Start difference. First operand has 280 places, 720 transitions, 13017 flow. Second operand 15 states and 1059 transitions. [2024-11-28 04:20:21,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1183 transitions, 20257 flow [2024-11-28 04:20:22,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1183 transitions, 19979 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-28 04:20:22,359 INFO L231 Difference]: Finished difference. Result has 292 places, 779 transitions, 14269 flow [2024-11-28 04:20:22,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12803, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14269, PETRI_PLACES=292, PETRI_TRANSITIONS=779} [2024-11-28 04:20:22,360 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 200 predicate places. [2024-11-28 04:20:22,360 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 779 transitions, 14269 flow [2024-11-28 04:20:22,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:22,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:22,360 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] [2024-11-28 04:20:22,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:20:22,360 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:22,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:22,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1662952885, now seen corresponding path program 4 times [2024-11-28 04:20:22,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:22,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316654269] [2024-11-28 04:20:22,361 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:20:22,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:22,374 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:20:22,374 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:22,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316654269] [2024-11-28 04:20:22,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316654269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:22,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:22,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812014502] [2024-11-28 04:20:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:22,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:22,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:22,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:23,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:20:23,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 779 transitions, 14269 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:23,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:23,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:20:23,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:26,175 INFO L124 PetriNetUnfolderBase]: 3204/8341 cut-off events. [2024-11-28 04:20:26,175 INFO L125 PetriNetUnfolderBase]: For 112272/112776 co-relation queries the response was YES. [2024-11-28 04:20:26,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49536 conditions, 8341 events. 3204/8341 cut-off events. For 112272/112776 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77395 event pairs, 552 based on Foata normal form. 111/8390 useless extension candidates. Maximal degree in co-relation 49403. Up to 2899 conditions per place. [2024-11-28 04:20:26,294 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 768 selfloop transitions, 230 changer transitions 38/1113 dead transitions. [2024-11-28 04:20:26,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1113 transitions, 20011 flow [2024-11-28 04:20:26,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-28 04:20:26,296 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-28 04:20:26,296 INFO L175 Difference]: Start difference. First operand has 292 places, 779 transitions, 14269 flow. Second operand 15 states and 1054 transitions. [2024-11-28 04:20:26,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1113 transitions, 20011 flow [2024-11-28 04:20:27,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1113 transitions, 19760 flow, removed 58 selfloop flow, removed 9 redundant places. [2024-11-28 04:20:27,171 INFO L231 Difference]: Finished difference. Result has 304 places, 818 transitions, 15598 flow [2024-11-28 04:20:27,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14079, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15598, PETRI_PLACES=304, PETRI_TRANSITIONS=818} [2024-11-28 04:20:27,172 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 212 predicate places. [2024-11-28 04:20:27,172 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 818 transitions, 15598 flow [2024-11-28 04:20:27,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:27,172 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:27,172 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] [2024-11-28 04:20:27,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:20:27,173 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:27,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:27,173 INFO L85 PathProgramCache]: Analyzing trace with hash -295726675, now seen corresponding path program 1 times [2024-11-28 04:20:27,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:27,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252173818] [2024-11-28 04:20:27,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:27,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:27,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252173818] [2024-11-28 04:20:27,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252173818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:27,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:27,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:27,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648783398] [2024-11-28 04:20:27,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:27,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:27,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:27,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:27,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:28,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:20:28,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 818 transitions, 15598 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:28,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:28,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:20:28,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:30,568 INFO L124 PetriNetUnfolderBase]: 2720/7552 cut-off events. [2024-11-28 04:20:30,568 INFO L125 PetriNetUnfolderBase]: For 114659/115589 co-relation queries the response was YES. [2024-11-28 04:20:30,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44743 conditions, 7552 events. 2720/7552 cut-off events. For 114659/115589 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 71959 event pairs, 264 based on Foata normal form. 173/7677 useless extension candidates. Maximal degree in co-relation 44605. Up to 1988 conditions per place. [2024-11-28 04:20:30,655 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 669 selfloop transitions, 186 changer transitions 25/1161 dead transitions. [2024-11-28 04:20:30,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1161 transitions, 21156 flow [2024-11-28 04:20:30,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:30,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-28 04:20:30,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-28 04:20:30,657 INFO L175 Difference]: Start difference. First operand has 304 places, 818 transitions, 15598 flow. Second operand 15 states and 1099 transitions. [2024-11-28 04:20:30,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1161 transitions, 21156 flow [2024-11-28 04:20:31,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1161 transitions, 20800 flow, removed 60 selfloop flow, removed 10 redundant places. [2024-11-28 04:20:31,596 INFO L231 Difference]: Finished difference. Result has 317 places, 926 transitions, 17720 flow [2024-11-28 04:20:31,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15264, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17720, PETRI_PLACES=317, PETRI_TRANSITIONS=926} [2024-11-28 04:20:31,597 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 225 predicate places. [2024-11-28 04:20:31,598 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 926 transitions, 17720 flow [2024-11-28 04:20:31,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:31,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:31,598 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] [2024-11-28 04:20:31,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:20:31,598 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:31,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1742526705, now seen corresponding path program 5 times [2024-11-28 04:20:31,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:31,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611029893] [2024-11-28 04:20:31,599 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:20:31,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:31,612 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:20:31,612 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:31,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:31,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611029893] [2024-11-28 04:20:31,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611029893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:31,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:31,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:31,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302791233] [2024-11-28 04:20:31,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:31,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:31,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:32,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:20:32,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 926 transitions, 17720 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:32,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:32,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:20:32,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:35,707 INFO L124 PetriNetUnfolderBase]: 3347/8760 cut-off events. [2024-11-28 04:20:35,707 INFO L125 PetriNetUnfolderBase]: For 130160/130720 co-relation queries the response was YES. [2024-11-28 04:20:35,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 8760 events. 3347/8760 cut-off events. For 130160/130720 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 82351 event pairs, 602 based on Foata normal form. 123/8815 useless extension candidates. Maximal degree in co-relation 53746. Up to 2904 conditions per place. [2024-11-28 04:20:35,864 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 868 selfloop transitions, 260 changer transitions 36/1241 dead transitions. [2024-11-28 04:20:35,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1241 transitions, 23783 flow [2024-11-28 04:20:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:35,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-28 04:20:35,866 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-28 04:20:35,866 INFO L175 Difference]: Start difference. First operand has 317 places, 926 transitions, 17720 flow. Second operand 15 states and 1054 transitions. [2024-11-28 04:20:35,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1241 transitions, 23783 flow [2024-11-28 04:20:37,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1241 transitions, 23680 flow, removed 45 selfloop flow, removed 3 redundant places. [2024-11-28 04:20:37,114 INFO L231 Difference]: Finished difference. Result has 335 places, 968 transitions, 19219 flow [2024-11-28 04:20:37,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=17619, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19219, PETRI_PLACES=335, PETRI_TRANSITIONS=968} [2024-11-28 04:20:37,116 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 243 predicate places. [2024-11-28 04:20:37,116 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 968 transitions, 19219 flow [2024-11-28 04:20:37,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:37,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:37,116 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] [2024-11-28 04:20:37,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:20:37,117 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:37,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:37,118 INFO L85 PathProgramCache]: Analyzing trace with hash 658878385, now seen corresponding path program 2 times [2024-11-28 04:20:37,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:37,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035708828] [2024-11-28 04:20:37,118 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:20:37,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:37,136 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:20:37,136 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:37,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:37,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035708828] [2024-11-28 04:20:37,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035708828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:37,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:37,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:37,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964275149] [2024-11-28 04:20:37,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:37,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:37,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:37,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:37,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:38,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:20:38,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 968 transitions, 19219 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:38,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:38,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:20:38,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:40,994 INFO L124 PetriNetUnfolderBase]: 2702/7568 cut-off events. [2024-11-28 04:20:40,994 INFO L125 PetriNetUnfolderBase]: For 133571/134531 co-relation queries the response was YES. [2024-11-28 04:20:41,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47486 conditions, 7568 events. 2702/7568 cut-off events. For 133571/134531 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 72501 event pairs, 246 based on Foata normal form. 180/7704 useless extension candidates. Maximal degree in co-relation 47334. Up to 1992 conditions per place. [2024-11-28 04:20:41,120 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 763 selfloop transitions, 185 changer transitions 24/1259 dead transitions. [2024-11-28 04:20:41,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1259 transitions, 24163 flow [2024-11-28 04:20:41,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:20:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:20:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-28 04:20:41,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-28 04:20:41,122 INFO L175 Difference]: Start difference. First operand has 335 places, 968 transitions, 19219 flow. Second operand 15 states and 1099 transitions. [2024-11-28 04:20:41,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1259 transitions, 24163 flow [2024-11-28 04:20:42,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1259 transitions, 23869 flow, removed 79 selfloop flow, removed 8 redundant places. [2024-11-28 04:20:42,695 INFO L231 Difference]: Finished difference. Result has 349 places, 1000 transitions, 19975 flow [2024-11-28 04:20:42,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18934, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19975, PETRI_PLACES=349, PETRI_TRANSITIONS=1000} [2024-11-28 04:20:42,696 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 257 predicate places. [2024-11-28 04:20:42,696 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 1000 transitions, 19975 flow [2024-11-28 04:20:42,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:42,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:42,697 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] [2024-11-28 04:20:42,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:20:42,697 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)] === [2024-11-28 04:20:42,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash 425477271, now seen corresponding path program 1 times [2024-11-28 04:20:42,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:42,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039690382] [2024-11-28 04:20:42,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:43,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039690382] [2024-11-28 04:20:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039690382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:43,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:43,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:43,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639594267] [2024-11-28 04:20:43,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:43,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:43,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:43,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:43,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:43,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:20:43,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1000 transitions, 19975 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:43,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:43,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:20:43,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:47,265 INFO L124 PetriNetUnfolderBase]: 3279/8595 cut-off events. [2024-11-28 04:20:47,265 INFO L125 PetriNetUnfolderBase]: For 151899/152522 co-relation queries the response was YES. [2024-11-28 04:20:47,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56210 conditions, 8595 events. 3279/8595 cut-off events. For 151899/152522 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 80528 event pairs, 575 based on Foata normal form. 93/8630 useless extension candidates. Maximal degree in co-relation 56051. Up to 2975 conditions per place. [2024-11-28 04:20:47,379 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1070 selfloop transitions, 162 changer transitions 69/1383 dead transitions. [2024-11-28 04:20:47,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1383 transitions, 27350 flow [2024-11-28 04:20:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:20:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 04:20:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2024-11-28 04:20:47,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2024-11-28 04:20:47,381 INFO L175 Difference]: Start difference. First operand has 349 places, 1000 transitions, 19975 flow. Second operand 16 states and 1119 transitions. [2024-11-28 04:20:47,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1383 transitions, 27350 flow [2024-11-28 04:20:48,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1383 transitions, 27013 flow, removed 65 selfloop flow, removed 8 redundant places. [2024-11-28 04:20:48,711 INFO L231 Difference]: Finished difference. Result has 364 places, 1054 transitions, 20880 flow [2024-11-28 04:20:48,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19707, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=20880, PETRI_PLACES=364, PETRI_TRANSITIONS=1054} [2024-11-28 04:20:48,712 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 272 predicate places. [2024-11-28 04:20:48,712 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1054 transitions, 20880 flow [2024-11-28 04:20:48,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:48,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:48,713 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] [2024-11-28 04:20:48,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:20:48,713 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)] === [2024-11-28 04:20:48,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:48,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1656638187, now seen corresponding path program 3 times [2024-11-28 04:20:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:48,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241560791] [2024-11-28 04:20:48,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:20:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:48,724 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:20:48,724 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:49,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:49,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241560791] [2024-11-28 04:20:49,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241560791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:49,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:49,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545284646] [2024-11-28 04:20:49,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:49,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:49,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:49,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:49,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:49,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:20:49,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1054 transitions, 20880 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:49,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:49,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:20:49,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:53,142 INFO L124 PetriNetUnfolderBase]: 2637/7470 cut-off events. [2024-11-28 04:20:53,142 INFO L125 PetriNetUnfolderBase]: For 145658/146629 co-relation queries the response was YES. [2024-11-28 04:20:53,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49511 conditions, 7470 events. 2637/7470 cut-off events. For 145658/146629 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 71698 event pairs, 267 based on Foata normal form. 220/7654 useless extension candidates. Maximal degree in co-relation 49345. Up to 1984 conditions per place. [2024-11-28 04:20:53,295 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 720 selfloop transitions, 216 changer transitions 28/1262 dead transitions. [2024-11-28 04:20:53,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1262 transitions, 25568 flow [2024-11-28 04:20:53,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:20:53,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:20:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2024-11-28 04:20:53,298 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2024-11-28 04:20:53,298 INFO L175 Difference]: Start difference. First operand has 364 places, 1054 transitions, 20880 flow. Second operand 14 states and 1027 transitions. [2024-11-28 04:20:53,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1262 transitions, 25568 flow [2024-11-28 04:20:54,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1262 transitions, 25382 flow, removed 71 selfloop flow, removed 5 redundant places. [2024-11-28 04:20:54,771 INFO L231 Difference]: Finished difference. Result has 379 places, 1074 transitions, 22108 flow [2024-11-28 04:20:54,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20694, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22108, PETRI_PLACES=379, PETRI_TRANSITIONS=1074} [2024-11-28 04:20:54,772 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 287 predicate places. [2024-11-28 04:20:54,772 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 1074 transitions, 22108 flow [2024-11-28 04:20:54,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:54,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:54,773 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] [2024-11-28 04:20:54,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:20:54,773 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:20:54,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:54,774 INFO L85 PathProgramCache]: Analyzing trace with hash 264199829, now seen corresponding path program 4 times [2024-11-28 04:20:54,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:20:54,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896487295] [2024-11-28 04:20:54,774 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:20:54,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:20:54,788 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:20:54,788 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:55,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:20:55,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896487295] [2024-11-28 04:20:55,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896487295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:55,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:55,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:20:55,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136313705] [2024-11-28 04:20:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:55,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:20:55,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:20:55,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:20:55,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:20:55,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:20:55,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1074 transitions, 22108 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:20:55,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:55,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:20:55,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:59,882 INFO L124 PetriNetUnfolderBase]: 2673/7597 cut-off events. [2024-11-28 04:20:59,882 INFO L125 PetriNetUnfolderBase]: For 163815/164854 co-relation queries the response was YES. [2024-11-28 04:20:59,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51620 conditions, 7597 events. 2673/7597 cut-off events. For 163815/164854 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73408 event pairs, 266 based on Foata normal form. 226/7790 useless extension candidates. Maximal degree in co-relation 51449. Up to 1985 conditions per place. [2024-11-28 04:21:00,018 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 759 selfloop transitions, 243 changer transitions 21/1321 dead transitions. [2024-11-28 04:21:00,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1321 transitions, 27686 flow [2024-11-28 04:21:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2024-11-28 04:21:00,021 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2024-11-28 04:21:00,021 INFO L175 Difference]: Start difference. First operand has 379 places, 1074 transitions, 22108 flow. Second operand 15 states and 1097 transitions. [2024-11-28 04:21:00,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1321 transitions, 27686 flow [2024-11-28 04:21:01,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1321 transitions, 27508 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-28 04:21:01,487 INFO L231 Difference]: Finished difference. Result has 392 places, 1113 transitions, 23817 flow [2024-11-28 04:21:01,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21944, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23817, PETRI_PLACES=392, PETRI_TRANSITIONS=1113} [2024-11-28 04:21:01,488 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 300 predicate places. [2024-11-28 04:21:01,488 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1113 transitions, 23817 flow [2024-11-28 04:21:01,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:01,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:01,488 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] [2024-11-28 04:21:01,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:21:01,488 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:21:01,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash 51531535, now seen corresponding path program 5 times [2024-11-28 04:21:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:01,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367689141] [2024-11-28 04:21:01,489 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:21:01,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:01,504 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:21:01,504 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:01,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367689141] [2024-11-28 04:21:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367689141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:01,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:01,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:01,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904929724] [2024-11-28 04:21:01,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:01,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:01,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:01,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:01,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:02,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:21:02,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1113 transitions, 23817 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:02,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:02,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:21:02,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:06,399 INFO L124 PetriNetUnfolderBase]: 2684/7643 cut-off events. [2024-11-28 04:21:06,400 INFO L125 PetriNetUnfolderBase]: For 179862/180997 co-relation queries the response was YES. [2024-11-28 04:21:06,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53144 conditions, 7643 events. 2684/7643 cut-off events. For 179862/180997 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73981 event pairs, 263 based on Foata normal form. 295/7901 useless extension candidates. Maximal degree in co-relation 52968. Up to 1986 conditions per place. [2024-11-28 04:21:06,545 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 749 selfloop transitions, 257 changer transitions 26/1330 dead transitions. [2024-11-28 04:21:06,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1330 transitions, 28958 flow [2024-11-28 04:21:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2024-11-28 04:21:06,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2024-11-28 04:21:06,547 INFO L175 Difference]: Start difference. First operand has 392 places, 1113 transitions, 23817 flow. Second operand 15 states and 1094 transitions. [2024-11-28 04:21:06,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1330 transitions, 28958 flow [2024-11-28 04:21:08,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1330 transitions, 28661 flow, removed 36 selfloop flow, removed 9 redundant places. [2024-11-28 04:21:08,019 INFO L231 Difference]: Finished difference. Result has 402 places, 1140 transitions, 25236 flow [2024-11-28 04:21:08,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23533, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25236, PETRI_PLACES=402, PETRI_TRANSITIONS=1140} [2024-11-28 04:21:08,020 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 310 predicate places. [2024-11-28 04:21:08,020 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1140 transitions, 25236 flow [2024-11-28 04:21:08,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:08,021 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:08,021 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] [2024-11-28 04:21:08,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:21:08,021 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:21:08,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:08,021 INFO L85 PathProgramCache]: Analyzing trace with hash -19214287, now seen corresponding path program 8 times [2024-11-28 04:21:08,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:08,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743757000] [2024-11-28 04:21:08,022 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:21:08,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:08,031 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:21:08,031 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:08,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:08,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743757000] [2024-11-28 04:21:08,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743757000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:08,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:08,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:08,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675923578] [2024-11-28 04:21:08,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:08,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:08,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:08,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:08,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:08,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:21:08,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1140 transitions, 25236 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:08,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:08,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:21:08,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:13,065 INFO L124 PetriNetUnfolderBase]: 2711/7696 cut-off events. [2024-11-28 04:21:13,065 INFO L125 PetriNetUnfolderBase]: For 196360/197766 co-relation queries the response was YES. [2024-11-28 04:21:13,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55252 conditions, 7696 events. 2711/7696 cut-off events. For 196360/197766 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 74777 event pairs, 279 based on Foata normal form. 318/7982 useless extension candidates. Maximal degree in co-relation 55072. Up to 2023 conditions per place. [2024-11-28 04:21:13,264 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 732 selfloop transitions, 392 changer transitions 22/1346 dead transitions. [2024-11-28 04:21:13,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1346 transitions, 31395 flow [2024-11-28 04:21:13,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:13,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-28 04:21:13,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-28 04:21:13,266 INFO L175 Difference]: Start difference. First operand has 402 places, 1140 transitions, 25236 flow. Second operand 15 states and 1075 transitions. [2024-11-28 04:21:13,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1346 transitions, 31395 flow [2024-11-28 04:21:14,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1346 transitions, 31102 flow, removed 29 selfloop flow, removed 9 redundant places. [2024-11-28 04:21:14,829 INFO L231 Difference]: Finished difference. Result has 414 places, 1189 transitions, 27758 flow [2024-11-28 04:21:14,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=24961, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27758, PETRI_PLACES=414, PETRI_TRANSITIONS=1189} [2024-11-28 04:21:14,830 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 322 predicate places. [2024-11-28 04:21:14,831 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 1189 transitions, 27758 flow [2024-11-28 04:21:14,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:14,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:14,831 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] [2024-11-28 04:21:14,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:21:14,831 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:21:14,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash -412887781, now seen corresponding path program 6 times [2024-11-28 04:21:14,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:14,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583821328] [2024-11-28 04:21:14,833 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:21:14,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:14,842 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:21:14,843 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:15,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:15,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:15,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583821328] [2024-11-28 04:21:15,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583821328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:15,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:15,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:15,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37449110] [2024-11-28 04:21:15,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:15,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:15,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:15,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:15,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:15,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:21:15,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1189 transitions, 27758 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:15,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:15,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:21:15,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:19,463 INFO L124 PetriNetUnfolderBase]: 2719/7779 cut-off events. [2024-11-28 04:21:19,463 INFO L125 PetriNetUnfolderBase]: For 204465/205683 co-relation queries the response was YES. [2024-11-28 04:21:19,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56099 conditions, 7779 events. 2719/7779 cut-off events. For 204465/205683 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 75781 event pairs, 256 based on Foata normal form. 279/8028 useless extension candidates. Maximal degree in co-relation 55913. Up to 1987 conditions per place. [2024-11-28 04:21:19,689 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 821 selfloop transitions, 253 changer transitions 32/1422 dead transitions. [2024-11-28 04:21:19,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1422 transitions, 32937 flow [2024-11-28 04:21:19,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2024-11-28 04:21:19,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2024-11-28 04:21:19,691 INFO L175 Difference]: Start difference. First operand has 414 places, 1189 transitions, 27758 flow. Second operand 15 states and 1076 transitions. [2024-11-28 04:21:19,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1422 transitions, 32937 flow [2024-11-28 04:21:21,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 1422 transitions, 32544 flow, removed 96 selfloop flow, removed 8 redundant places. [2024-11-28 04:21:21,630 INFO L231 Difference]: Finished difference. Result has 429 places, 1214 transitions, 28714 flow [2024-11-28 04:21:21,631 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=27390, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28714, PETRI_PLACES=429, PETRI_TRANSITIONS=1214} [2024-11-28 04:21:21,631 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 337 predicate places. [2024-11-28 04:21:21,631 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 1214 transitions, 28714 flow [2024-11-28 04:21:21,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:21,632 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:21,632 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] [2024-11-28 04:21:21,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:21:21,632 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)] === [2024-11-28 04:21:21,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:21,633 INFO L85 PathProgramCache]: Analyzing trace with hash 62623573, now seen corresponding path program 2 times [2024-11-28 04:21:21,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:21,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782858489] [2024-11-28 04:21:21,633 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:21:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:21,643 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:21:21,643 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:22,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782858489] [2024-11-28 04:21:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782858489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:22,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:22,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:22,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24434835] [2024-11-28 04:21:22,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:22,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:22,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:22,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:22,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:22,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:21:22,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1214 transitions, 28714 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:22,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:22,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:21:22,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:28,545 INFO L124 PetriNetUnfolderBase]: 3371/9041 cut-off events. [2024-11-28 04:21:28,545 INFO L125 PetriNetUnfolderBase]: For 241521/242220 co-relation queries the response was YES. [2024-11-28 04:21:28,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67286 conditions, 9041 events. 3371/9041 cut-off events. For 241521/242220 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 86752 event pairs, 680 based on Foata normal form. 89/9070 useless extension candidates. Maximal degree in co-relation 67093. Up to 2967 conditions per place. [2024-11-28 04:21:28,812 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 891 selfloop transitions, 363 changer transitions 51/1392 dead transitions. [2024-11-28 04:21:28,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1392 transitions, 33730 flow [2024-11-28 04:21:28,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:21:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:21:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 964 transitions. [2024-11-28 04:21:28,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7325227963525835 [2024-11-28 04:21:28,814 INFO L175 Difference]: Start difference. First operand has 429 places, 1214 transitions, 28714 flow. Second operand 14 states and 964 transitions. [2024-11-28 04:21:28,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1392 transitions, 33730 flow [2024-11-28 04:21:31,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1392 transitions, 33154 flow, removed 94 selfloop flow, removed 10 redundant places. [2024-11-28 04:21:31,201 INFO L231 Difference]: Finished difference. Result has 438 places, 1246 transitions, 29769 flow [2024-11-28 04:21:31,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=28177, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29769, PETRI_PLACES=438, PETRI_TRANSITIONS=1246} [2024-11-28 04:21:31,203 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 346 predicate places. [2024-11-28 04:21:31,203 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1246 transitions, 29769 flow [2024-11-28 04:21:31,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:31,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:31,204 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] [2024-11-28 04:21:31,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:21:31,204 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)] === [2024-11-28 04:21:31,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1605457173, now seen corresponding path program 3 times [2024-11-28 04:21:31,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:31,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410832677] [2024-11-28 04:21:31,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:21:31,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:31,216 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:21:31,216 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:31,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:31,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410832677] [2024-11-28 04:21:31,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410832677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:31,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:31,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:31,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278162969] [2024-11-28 04:21:31,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:31,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:31,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:31,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:31,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:32,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:21:32,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1246 transitions, 29769 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:32,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:32,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:21:32,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:36,796 INFO L124 PetriNetUnfolderBase]: 3428/9159 cut-off events. [2024-11-28 04:21:36,796 INFO L125 PetriNetUnfolderBase]: For 248894/249606 co-relation queries the response was YES. [2024-11-28 04:21:37,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69451 conditions, 9159 events. 3428/9159 cut-off events. For 248894/249606 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 87868 event pairs, 641 based on Foata normal form. 110/9213 useless extension candidates. Maximal degree in co-relation 69256. Up to 2967 conditions per place. [2024-11-28 04:21:37,047 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1202 selfloop transitions, 201 changer transitions 22/1512 dead transitions. [2024-11-28 04:21:37,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1512 transitions, 36653 flow [2024-11-28 04:21:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1035 transitions. [2024-11-28 04:21:37,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7340425531914894 [2024-11-28 04:21:37,049 INFO L175 Difference]: Start difference. First operand has 438 places, 1246 transitions, 29769 flow. Second operand 15 states and 1035 transitions. [2024-11-28 04:21:37,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1512 transitions, 36653 flow [2024-11-28 04:21:39,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1512 transitions, 36515 flow, removed 29 selfloop flow, removed 7 redundant places. [2024-11-28 04:21:39,612 INFO L231 Difference]: Finished difference. Result has 451 places, 1297 transitions, 31409 flow [2024-11-28 04:21:39,613 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29644, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31409, PETRI_PLACES=451, PETRI_TRANSITIONS=1297} [2024-11-28 04:21:39,613 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 359 predicate places. [2024-11-28 04:21:39,614 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 1297 transitions, 31409 flow [2024-11-28 04:21:39,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:39,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:39,614 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] [2024-11-28 04:21:39,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 04:21:39,614 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)] === [2024-11-28 04:21:39,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1779910327, now seen corresponding path program 4 times [2024-11-28 04:21:39,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:39,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783608120] [2024-11-28 04:21:39,616 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:21:39,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:39,629 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:21:39,629 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:39,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:39,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783608120] [2024-11-28 04:21:39,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783608120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:39,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:39,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:39,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632506914] [2024-11-28 04:21:39,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:39,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:39,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:39,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:39,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:40,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:21:40,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1297 transitions, 31409 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:40,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:40,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:21:40,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:46,015 INFO L124 PetriNetUnfolderBase]: 3475/9307 cut-off events. [2024-11-28 04:21:46,015 INFO L125 PetriNetUnfolderBase]: For 263040/263751 co-relation queries the response was YES. [2024-11-28 04:21:46,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72305 conditions, 9307 events. 3475/9307 cut-off events. For 263040/263751 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 89739 event pairs, 680 based on Foata normal form. 107/9354 useless extension candidates. Maximal degree in co-relation 72104. Up to 2967 conditions per place. [2024-11-28 04:21:46,169 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 946 selfloop transitions, 385 changer transitions 54/1472 dead transitions. [2024-11-28 04:21:46,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1472 transitions, 36754 flow [2024-11-28 04:21:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1027 transitions. [2024-11-28 04:21:46,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7283687943262411 [2024-11-28 04:21:46,171 INFO L175 Difference]: Start difference. First operand has 451 places, 1297 transitions, 31409 flow. Second operand 15 states and 1027 transitions. [2024-11-28 04:21:46,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1472 transitions, 36754 flow [2024-11-28 04:21:48,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 1472 transitions, 36505 flow, removed 68 selfloop flow, removed 8 redundant places. [2024-11-28 04:21:48,901 INFO L231 Difference]: Finished difference. Result has 463 places, 1305 transitions, 32535 flow [2024-11-28 04:21:48,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=31204, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=914, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32535, PETRI_PLACES=463, PETRI_TRANSITIONS=1305} [2024-11-28 04:21:48,902 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 371 predicate places. [2024-11-28 04:21:48,903 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1305 transitions, 32535 flow [2024-11-28 04:21:48,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:48,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:48,903 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] [2024-11-28 04:21:48,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:21:48,903 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:21:48,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1241731211, now seen corresponding path program 6 times [2024-11-28 04:21:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:48,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985028425] [2024-11-28 04:21:48,904 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:21:48,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:48,913 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:21:48,913 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:49,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:49,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985028425] [2024-11-28 04:21:49,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985028425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:49,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400294456] [2024-11-28 04:21:49,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:49,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:49,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:49,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:49,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:21:49,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1305 transitions, 32535 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:49,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:49,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:21:49,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:21:54,575 INFO L124 PetriNetUnfolderBase]: 3498/9353 cut-off events. [2024-11-28 04:21:54,575 INFO L125 PetriNetUnfolderBase]: For 271683/272328 co-relation queries the response was YES. [2024-11-28 04:21:54,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73653 conditions, 9353 events. 3498/9353 cut-off events. For 271683/272328 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 90113 event pairs, 667 based on Foata normal form. 130/9418 useless extension candidates. Maximal degree in co-relation 73447. Up to 2895 conditions per place. [2024-11-28 04:21:54,847 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 1215 selfloop transitions, 208 changer transitions 36/1554 dead transitions. [2024-11-28 04:21:54,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1554 transitions, 39169 flow [2024-11-28 04:21:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:21:54,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:21:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1030 transitions. [2024-11-28 04:21:54,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7304964539007093 [2024-11-28 04:21:54,850 INFO L175 Difference]: Start difference. First operand has 463 places, 1305 transitions, 32535 flow. Second operand 15 states and 1030 transitions. [2024-11-28 04:21:54,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1554 transitions, 39169 flow [2024-11-28 04:21:58,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 1554 transitions, 38761 flow, removed 24 selfloop flow, removed 10 redundant places. [2024-11-28 04:21:58,106 INFO L231 Difference]: Finished difference. Result has 474 places, 1336 transitions, 33447 flow [2024-11-28 04:21:58,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=32165, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1099, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=33447, PETRI_PLACES=474, PETRI_TRANSITIONS=1336} [2024-11-28 04:21:58,107 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 382 predicate places. [2024-11-28 04:21:58,107 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 1336 transitions, 33447 flow [2024-11-28 04:21:58,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:58,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:21:58,108 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] [2024-11-28 04:21:58,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:21:58,108 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)] === [2024-11-28 04:21:58,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:21:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2004893153, now seen corresponding path program 5 times [2024-11-28 04:21:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:21:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521973022] [2024-11-28 04:21:58,110 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:21:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:21:58,121 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:21:58,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:21:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:21:58,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:21:58,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521973022] [2024-11-28 04:21:58,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521973022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:21:58,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:21:58,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:21:58,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079234950] [2024-11-28 04:21:58,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:21:58,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:21:58,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:21:58,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:21:58,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:21:58,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:21:58,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1336 transitions, 33447 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:21:58,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:21:58,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:21:58,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:22:05,573 INFO L124 PetriNetUnfolderBase]: 3495/9385 cut-off events. [2024-11-28 04:22:05,573 INFO L125 PetriNetUnfolderBase]: For 289161/289874 co-relation queries the response was YES. [2024-11-28 04:22:05,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75735 conditions, 9385 events. 3495/9385 cut-off events. For 289161/289874 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 90790 event pairs, 687 based on Foata normal form. 114/9439 useless extension candidates. Maximal degree in co-relation 75523. Up to 2962 conditions per place. [2024-11-28 04:22:05,761 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 986 selfloop transitions, 399 changer transitions 69/1542 dead transitions. [2024-11-28 04:22:05,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1542 transitions, 39733 flow [2024-11-28 04:22:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:22:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:22:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1030 transitions. [2024-11-28 04:22:05,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7304964539007093 [2024-11-28 04:22:05,763 INFO L175 Difference]: Start difference. First operand has 474 places, 1336 transitions, 33447 flow. Second operand 15 states and 1030 transitions. [2024-11-28 04:22:05,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1542 transitions, 39733 flow [2024-11-28 04:22:09,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1542 transitions, 39175 flow, removed 162 selfloop flow, removed 10 redundant places. [2024-11-28 04:22:09,783 INFO L231 Difference]: Finished difference. Result has 484 places, 1348 transitions, 34505 flow [2024-11-28 04:22:09,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=33015, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=34505, PETRI_PLACES=484, PETRI_TRANSITIONS=1348} [2024-11-28 04:22:09,785 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 392 predicate places. [2024-11-28 04:22:09,785 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 1348 transitions, 34505 flow [2024-11-28 04:22:09,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:22:09,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:22:09,786 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] [2024-11-28 04:22:09,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 04:22:09,786 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:22:09,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1660723103, now seen corresponding path program 9 times [2024-11-28 04:22:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:09,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288967057] [2024-11-28 04:22:09,788 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:22:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:09,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:22:09,813 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:22:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:22:10,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:10,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288967057] [2024-11-28 04:22:10,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288967057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:10,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:10,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:22:10,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68396052] [2024-11-28 04:22:10,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:10,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:22:10,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:10,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:22:10,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:22:10,900 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-28 04:22:10,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1348 transitions, 34505 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:22:10,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:22:10,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-28 04:22:10,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:22:16,346 INFO L124 PetriNetUnfolderBase]: 2831/8141 cut-off events. [2024-11-28 04:22:16,346 INFO L125 PetriNetUnfolderBase]: For 290829/292407 co-relation queries the response was YES. [2024-11-28 04:22:16,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67101 conditions, 8141 events. 2831/8141 cut-off events. For 290829/292407 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 80403 event pairs, 294 based on Foata normal form. 389/8497 useless extension candidates. Maximal degree in co-relation 66886. Up to 2110 conditions per place. [2024-11-28 04:22:16,557 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 817 selfloop transitions, 422 changer transitions 22/1507 dead transitions. [2024-11-28 04:22:16,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1507 transitions, 40276 flow [2024-11-28 04:22:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:22:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:22:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-28 04:22:16,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-28 04:22:16,559 INFO L175 Difference]: Start difference. First operand has 484 places, 1348 transitions, 34505 flow. Second operand 15 states and 1075 transitions. [2024-11-28 04:22:16,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1507 transitions, 40276 flow [2024-11-28 04:22:19,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1507 transitions, 39834 flow, removed 131 selfloop flow, removed 11 redundant places. [2024-11-28 04:22:19,962 INFO L231 Difference]: Finished difference. Result has 493 places, 1384 transitions, 36792 flow [2024-11-28 04:22:19,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=34067, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=387, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=36792, PETRI_PLACES=493, PETRI_TRANSITIONS=1384} [2024-11-28 04:22:19,964 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 401 predicate places. [2024-11-28 04:22:19,964 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 1384 transitions, 36792 flow [2024-11-28 04:22:19,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:22:19,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:22:19,964 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] [2024-11-28 04:22:19,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 04:22:19,965 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)] === [2024-11-28 04:22:19,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1578927837, now seen corresponding path program 6 times [2024-11-28 04:22:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:19,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121192286] [2024-11-28 04:22:19,966 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:22:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:19,992 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:22:19,992 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:22:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:22:20,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:20,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121192286] [2024-11-28 04:22:20,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121192286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:20,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:20,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:22:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459954580] [2024-11-28 04:22:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:20,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:22:20,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:20,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:22:20,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:22:21,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-28 04:22:21,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1384 transitions, 36792 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:22:21,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:22:21,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-28 04:22:21,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:22:27,978 INFO L124 PetriNetUnfolderBase]: 3526/9552 cut-off events. [2024-11-28 04:22:27,978 INFO L125 PetriNetUnfolderBase]: For 325708/326479 co-relation queries the response was YES. [2024-11-28 04:22:28,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78611 conditions, 9552 events. 3526/9552 cut-off events. For 325708/326479 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 93220 event pairs, 706 based on Foata normal form. 126/9617 useless extension candidates. Maximal degree in co-relation 78394. Up to 2962 conditions per place. [2024-11-28 04:22:28,256 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1030 selfloop transitions, 421 changer transitions 45/1584 dead transitions. [2024-11-28 04:22:28,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1584 transitions, 42928 flow [2024-11-28 04:22:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:22:28,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:22:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1030 transitions. [2024-11-28 04:22:28,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7304964539007093 [2024-11-28 04:22:28,259 INFO L175 Difference]: Start difference. First operand has 493 places, 1384 transitions, 36792 flow. Second operand 15 states and 1030 transitions. [2024-11-28 04:22:28,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1584 transitions, 42928 flow