./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd --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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:44:48,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:44:48,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 14:44:48,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:44:48,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:44:48,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:44:48,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:44:48,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:44:48,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:44:48,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:44:48,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:44:48,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:44:48,840 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:44:48,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:44:48,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:44:48,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:44:48,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:44:48,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:44:48,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:44:48,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:44:48,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:44:48,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:44:48,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:44:48,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:44:48,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:44:48,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:44:48,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:44:48,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:44:48,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:44:48,846 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_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd 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 -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-11-13 14:44:49,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:44:49,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:44:49,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:44:49,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:44:49,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:44:49,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i Unable to find full path for "g++" [2024-11-13 14:44:51,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:44:51,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:44:51,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-13 14:44:51,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/data/5a1ae3177/057f090c47c143fea903f87e9cd910a6/FLAG066197781 [2024-11-13 14:44:51,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/data/5a1ae3177/057f090c47c143fea903f87e9cd910a6 [2024-11-13 14:44:51,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:44:51,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:44:51,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:44:51,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:44:51,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:44:51,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:44:51" (1/1) ... [2024-11-13 14:44:51,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5163e4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:51, skipping insertion in model container [2024-11-13 14:44:51,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:44:51" (1/1) ... [2024-11-13 14:44:52,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:44:52,630 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,631 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,632 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,634 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:44:52,742 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:44:52,822 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,823 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,831 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,832 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-13 14:44:52,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:44:52,951 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:44:52,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52 WrapperNode [2024-11-13 14:44:52,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:44:52,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:44:52,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:44:52,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:44:52,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:52,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,019 INFO L138 Inliner]: procedures = 281, calls = 159, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 457 [2024-11-13 14:44:53,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:44:53,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:44:53,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:44:53,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:44:53,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:44:53,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:44:53,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:44:53,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:44:53,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (1/1) ... [2024-11-13 14:44:53,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:44:53,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:53,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:44:53,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:44:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 14:44:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 14:44:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 14:44:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 14:44:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 14:44:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 14:44:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:44:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:44:53,165 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:44:53,396 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:44:53,398 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:44:54,629 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:44:54,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:44:54,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:44:54,692 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-13 14:44:54,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:54 BoogieIcfgContainer [2024-11-13 14:44:54,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:44:54,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:44:54,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:44:54,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:44:54,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:44:51" (1/3) ... [2024-11-13 14:44:54,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b02cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:44:54, skipping insertion in model container [2024-11-13 14:44:54,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:52" (2/3) ... [2024-11-13 14:44:54,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b02cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:44:54, skipping insertion in model container [2024-11-13 14:44:54,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:54" (3/3) ... [2024-11-13 14:44:54,709 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-11-13 14:44:54,728 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:44:54,730 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_93-evilcollapse_racefree.i that has 2 procedures, 484 locations, 1 initial locations, 11 loop locations, and 21 error locations. [2024-11-13 14:44:54,731 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:44:54,948 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 14:44:55,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 487 places, 512 transitions, 1031 flow [2024-11-13 14:44:55,402 INFO L124 PetriNetUnfolderBase]: 30/544 cut-off events. [2024-11-13 14:44:55,405 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:44:55,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 544 events. 30/544 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1156 event pairs, 0 based on Foata normal form. 0/488 useless extension candidates. Maximal degree in co-relation 359. Up to 4 conditions per place. [2024-11-13 14:44:55,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 487 places, 512 transitions, 1031 flow [2024-11-13 14:44:55,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 487 places, 512 transitions, 1031 flow [2024-11-13 14:44:55,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:44:55,455 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;@69e295a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:44:55,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-13 14:44:55,517 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:44:55,517 INFO L124 PetriNetUnfolderBase]: 1/157 cut-off events. [2024-11-13 14:44:55,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:44:55,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:44:55,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:55,519 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:44:55,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:55,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2046397743, now seen corresponding path program 1 times [2024-11-13 14:44:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:55,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495243977] [2024-11-13 14:44:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:55,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:57,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:57,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495243977] [2024-11-13 14:44:57,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495243977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:57,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:57,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:44:57,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208929683] [2024-11-13 14:44:57,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:57,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:44:57,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:44:57,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:44:58,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 512 [2024-11-13 14:44:58,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 512 transitions, 1031 flow. Second operand has 6 states, 6 states have (on average 391.3333333333333) internal successors, (2348), 6 states have internal predecessors, (2348), 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) [2024-11-13 14:44:58,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:44:58,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 512 [2024-11-13 14:44:58,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:44:59,759 INFO L124 PetriNetUnfolderBase]: 320/1704 cut-off events. [2024-11-13 14:44:59,760 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-13 14:44:59,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 1704 events. 320/1704 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10057 event pairs, 288 based on Foata normal form. 184/1753 useless extension candidates. Maximal degree in co-relation 1972. Up to 682 conditions per place. [2024-11-13 14:44:59,785 INFO L140 encePairwiseOnDemand]: 479/512 looper letters, 88 selfloop transitions, 10 changer transitions 2/487 dead transitions. [2024-11-13 14:44:59,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 487 transitions, 1177 flow [2024-11-13 14:44:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:44:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:44:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2461 transitions. [2024-11-13 14:44:59,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8011067708333334 [2024-11-13 14:44:59,824 INFO L175 Difference]: Start difference. First operand has 487 places, 512 transitions, 1031 flow. Second operand 6 states and 2461 transitions. [2024-11-13 14:44:59,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 487 transitions, 1177 flow [2024-11-13 14:44:59,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 487 transitions, 1177 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:44:59,859 INFO L231 Difference]: Finished difference. Result has 488 places, 485 transitions, 997 flow [2024-11-13 14:44:59,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=997, PETRI_PLACES=488, PETRI_TRANSITIONS=485} [2024-11-13 14:44:59,869 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 1 predicate places. [2024-11-13 14:44:59,869 INFO L471 AbstractCegarLoop]: Abstraction has has 488 places, 485 transitions, 997 flow [2024-11-13 14:44:59,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 391.3333333333333) internal successors, (2348), 6 states have internal predecessors, (2348), 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) [2024-11-13 14:44:59,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:44:59,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:59,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:44:59,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:44:59,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2014691882, now seen corresponding path program 1 times [2024-11-13 14:44:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:59,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582940121] [2024-11-13 14:44:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:01,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:01,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582940121] [2024-11-13 14:45:01,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582940121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:01,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:01,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:01,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696101621] [2024-11-13 14:45:01,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:01,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:01,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:01,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:01,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:02,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 512 [2024-11-13 14:45:02,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 485 transitions, 997 flow. Second operand has 6 states, 6 states have (on average 391.3333333333333) internal successors, (2348), 6 states have internal predecessors, (2348), 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) [2024-11-13 14:45:02,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:02,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 512 [2024-11-13 14:45:02,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:02,899 INFO L124 PetriNetUnfolderBase]: 320/1700 cut-off events. [2024-11-13 14:45:02,899 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-13 14:45:02,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1700 events. 320/1700 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10074 event pairs, 288 based on Foata normal form. 0/1569 useless extension candidates. Maximal degree in co-relation 2234. Up to 682 conditions per place. [2024-11-13 14:45:02,909 INFO L140 encePairwiseOnDemand]: 500/512 looper letters, 88 selfloop transitions, 10 changer transitions 0/483 dead transitions. [2024-11-13 14:45:02,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 483 transitions, 1189 flow [2024-11-13 14:45:02,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:02,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2440 transitions. [2024-11-13 14:45:02,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7942708333333334 [2024-11-13 14:45:02,918 INFO L175 Difference]: Start difference. First operand has 488 places, 485 transitions, 997 flow. Second operand 6 states and 2440 transitions. [2024-11-13 14:45:02,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 483 transitions, 1189 flow [2024-11-13 14:45:02,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 483 transitions, 1169 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:02,931 INFO L231 Difference]: Finished difference. Result has 484 places, 483 transitions, 993 flow [2024-11-13 14:45:02,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=993, PETRI_PLACES=484, PETRI_TRANSITIONS=483} [2024-11-13 14:45:02,933 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -3 predicate places. [2024-11-13 14:45:02,933 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 483 transitions, 993 flow [2024-11-13 14:45:02,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 391.3333333333333) internal successors, (2348), 6 states have internal predecessors, (2348), 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) [2024-11-13 14:45:02,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:02,935 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:02,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:45:02,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:02,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash 676149186, now seen corresponding path program 1 times [2024-11-13 14:45:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921327391] [2024-11-13 14:45:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:02,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:03,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:03,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921327391] [2024-11-13 14:45:03,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921327391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:03,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:03,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:45:03,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777476291] [2024-11-13 14:45:03,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:03,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:45:03,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:03,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:45:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:45:03,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 512 [2024-11-13 14:45:03,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 483 transitions, 993 flow. Second operand has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2024-11-13 14:45:03,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:03,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 512 [2024-11-13 14:45:03,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:03,459 INFO L124 PetriNetUnfolderBase]: 16/661 cut-off events. [2024-11-13 14:45:03,460 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-13 14:45:03,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 661 events. 16/661 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1816 event pairs, 8 based on Foata normal form. 1/619 useless extension candidates. Maximal degree in co-relation 498. Up to 34 conditions per place. [2024-11-13 14:45:03,464 INFO L140 encePairwiseOnDemand]: 509/512 looper letters, 15 selfloop transitions, 2 changer transitions 0/484 dead transitions. [2024-11-13 14:45:03,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 484 transitions, 1029 flow [2024-11-13 14:45:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:45:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:45:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1440 transitions. [2024-11-13 14:45:03,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9375 [2024-11-13 14:45:03,472 INFO L175 Difference]: Start difference. First operand has 484 places, 483 transitions, 993 flow. Second operand 3 states and 1440 transitions. [2024-11-13 14:45:03,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 484 transitions, 1029 flow [2024-11-13 14:45:03,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 484 transitions, 1009 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:03,491 INFO L231 Difference]: Finished difference. Result has 482 places, 484 transitions, 985 flow [2024-11-13 14:45:03,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=985, PETRI_PLACES=482, PETRI_TRANSITIONS=484} [2024-11-13 14:45:03,494 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -5 predicate places. [2024-11-13 14:45:03,495 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 484 transitions, 985 flow [2024-11-13 14:45:03,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2024-11-13 14:45:03,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:03,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:03,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:45:03,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:03,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash -919945336, now seen corresponding path program 1 times [2024-11-13 14:45:03,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:03,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757883420] [2024-11-13 14:45:03,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:03,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:04,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:04,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757883420] [2024-11-13 14:45:04,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757883420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:04,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:04,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:04,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207763484] [2024-11-13 14:45:04,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:04,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:04,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:04,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:04,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:05,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 512 [2024-11-13 14:45:05,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 484 transitions, 985 flow. Second operand has 6 states, 6 states have (on average 391.6666666666667) internal successors, (2350), 6 states have internal predecessors, (2350), 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) [2024-11-13 14:45:05,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:05,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 512 [2024-11-13 14:45:05,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:06,008 INFO L124 PetriNetUnfolderBase]: 321/1822 cut-off events. [2024-11-13 14:45:06,008 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2024-11-13 14:45:06,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2575 conditions, 1822 events. 321/1822 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10642 event pairs, 288 based on Foata normal form. 0/1687 useless extension candidates. Maximal degree in co-relation 2270. Up to 730 conditions per place. [2024-11-13 14:45:06,018 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 95 selfloop transitions, 5 changer transitions 0/483 dead transitions. [2024-11-13 14:45:06,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 483 transitions, 1183 flow [2024-11-13 14:45:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:06,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2435 transitions. [2024-11-13 14:45:06,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7926432291666666 [2024-11-13 14:45:06,028 INFO L175 Difference]: Start difference. First operand has 482 places, 484 transitions, 985 flow. Second operand 6 states and 2435 transitions. [2024-11-13 14:45:06,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 483 transitions, 1183 flow [2024-11-13 14:45:06,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 483 transitions, 1181 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:45:06,040 INFO L231 Difference]: Finished difference. Result has 485 places, 483 transitions, 991 flow [2024-11-13 14:45:06,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=991, PETRI_PLACES=485, PETRI_TRANSITIONS=483} [2024-11-13 14:45:06,043 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -2 predicate places. [2024-11-13 14:45:06,044 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 483 transitions, 991 flow [2024-11-13 14:45:06,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 391.6666666666667) internal successors, (2350), 6 states have internal predecessors, (2350), 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) [2024-11-13 14:45:06,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:06,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:06,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:45:06,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:06,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:06,048 INFO L85 PathProgramCache]: Analyzing trace with hash -180644799, now seen corresponding path program 1 times [2024-11-13 14:45:06,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:06,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866360574] [2024-11-13 14:45:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:06,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:06,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:06,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:06,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866360574] [2024-11-13 14:45:06,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866360574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:06,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:06,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:45:06,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544189823] [2024-11-13 14:45:06,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:06,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:45:06,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:06,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:45:06,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:45:06,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 512 [2024-11-13 14:45:06,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 483 transitions, 991 flow. Second operand has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2024-11-13 14:45:06,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:06,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 512 [2024-11-13 14:45:06,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:06,485 INFO L124 PetriNetUnfolderBase]: 16/847 cut-off events. [2024-11-13 14:45:06,486 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-13 14:45:06,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 847 events. 16/847 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1837 event pairs, 8 based on Foata normal form. 2/800 useless extension candidates. Maximal degree in co-relation 693. Up to 38 conditions per place. [2024-11-13 14:45:06,489 INFO L140 encePairwiseOnDemand]: 509/512 looper letters, 15 selfloop transitions, 2 changer transitions 0/484 dead transitions. [2024-11-13 14:45:06,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 484 transitions, 1027 flow [2024-11-13 14:45:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:45:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:45:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1440 transitions. [2024-11-13 14:45:06,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9375 [2024-11-13 14:45:06,494 INFO L175 Difference]: Start difference. First operand has 485 places, 483 transitions, 991 flow. Second operand 3 states and 1440 transitions. [2024-11-13 14:45:06,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 484 transitions, 1027 flow [2024-11-13 14:45:06,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 484 transitions, 1017 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:06,506 INFO L231 Difference]: Finished difference. Result has 483 places, 484 transitions, 993 flow [2024-11-13 14:45:06,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=993, PETRI_PLACES=483, PETRI_TRANSITIONS=484} [2024-11-13 14:45:06,508 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -4 predicate places. [2024-11-13 14:45:06,510 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 484 transitions, 993 flow [2024-11-13 14:45:06,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 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) [2024-11-13 14:45:06,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:06,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:06,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:45:06,514 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:06,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:06,515 INFO L85 PathProgramCache]: Analyzing trace with hash -974161649, now seen corresponding path program 1 times [2024-11-13 14:45:06,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:06,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868342485] [2024-11-13 14:45:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:06,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:07,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:07,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868342485] [2024-11-13 14:45:07,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868342485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:07,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:07,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:07,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376038092] [2024-11-13 14:45:07,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:07,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:07,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:07,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:07,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:08,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 512 [2024-11-13 14:45:08,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 484 transitions, 993 flow. Second operand has 6 states, 6 states have (on average 426.5) internal successors, (2559), 6 states have internal predecessors, (2559), 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) [2024-11-13 14:45:08,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:08,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 512 [2024-11-13 14:45:08,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:09,180 INFO L124 PetriNetUnfolderBase]: 84/1161 cut-off events. [2024-11-13 14:45:09,181 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-11-13 14:45:09,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1514 conditions, 1161 events. 84/1161 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3748 event pairs, 64 based on Foata normal form. 0/1075 useless extension candidates. Maximal degree in co-relation 942. Up to 311 conditions per place. [2024-11-13 14:45:09,185 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 62 selfloop transitions, 5 changer transitions 0/483 dead transitions. [2024-11-13 14:45:09,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 483 transitions, 1125 flow [2024-11-13 14:45:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2600 transitions. [2024-11-13 14:45:09,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463541666666666 [2024-11-13 14:45:09,192 INFO L175 Difference]: Start difference. First operand has 483 places, 484 transitions, 993 flow. Second operand 6 states and 2600 transitions. [2024-11-13 14:45:09,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 483 transitions, 1125 flow [2024-11-13 14:45:09,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 483 transitions, 1123 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:45:09,204 INFO L231 Difference]: Finished difference. Result has 486 places, 483 transitions, 999 flow [2024-11-13 14:45:09,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=999, PETRI_PLACES=486, PETRI_TRANSITIONS=483} [2024-11-13 14:45:09,206 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -1 predicate places. [2024-11-13 14:45:09,207 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 483 transitions, 999 flow [2024-11-13 14:45:09,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 426.5) internal successors, (2559), 6 states have internal predecessors, (2559), 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) [2024-11-13 14:45:09,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:09,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:09,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:45:09,210 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:09,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:09,211 INFO L85 PathProgramCache]: Analyzing trace with hash 697570760, now seen corresponding path program 1 times [2024-11-13 14:45:09,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:09,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557832640] [2024-11-13 14:45:09,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:09,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:10,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:10,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557832640] [2024-11-13 14:45:10,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557832640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:10,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:10,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:10,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033565300] [2024-11-13 14:45:10,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:10,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:10,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:10,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:11,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 512 [2024-11-13 14:45:11,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 483 transitions, 999 flow. Second operand has 6 states, 6 states have (on average 394.3333333333333) internal successors, (2366), 6 states have internal predecessors, (2366), 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) [2024-11-13 14:45:11,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:11,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 512 [2024-11-13 14:45:11,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:11,759 INFO L124 PetriNetUnfolderBase]: 321/2002 cut-off events. [2024-11-13 14:45:11,760 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-13 14:45:11,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2859 conditions, 2002 events. 321/2002 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10768 event pairs, 288 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2313. Up to 796 conditions per place. [2024-11-13 14:45:11,768 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 95 selfloop transitions, 5 changer transitions 0/482 dead transitions. [2024-11-13 14:45:11,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 482 transitions, 1197 flow [2024-11-13 14:45:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2435 transitions. [2024-11-13 14:45:11,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7926432291666666 [2024-11-13 14:45:11,775 INFO L175 Difference]: Start difference. First operand has 486 places, 483 transitions, 999 flow. Second operand 6 states and 2435 transitions. [2024-11-13 14:45:11,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 482 transitions, 1197 flow [2024-11-13 14:45:11,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 482 transitions, 1187 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:11,785 INFO L231 Difference]: Finished difference. Result has 485 places, 482 transitions, 997 flow [2024-11-13 14:45:11,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=997, PETRI_PLACES=485, PETRI_TRANSITIONS=482} [2024-11-13 14:45:11,787 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -2 predicate places. [2024-11-13 14:45:11,788 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 482 transitions, 997 flow [2024-11-13 14:45:11,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 394.3333333333333) internal successors, (2366), 6 states have internal predecessors, (2366), 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) [2024-11-13 14:45:11,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:11,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:11,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:45:11,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:11,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1325889247, now seen corresponding path program 1 times [2024-11-13 14:45:11,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450019075] [2024-11-13 14:45:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:11,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:12,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:12,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:12,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450019075] [2024-11-13 14:45:12,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450019075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:12,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952366331] [2024-11-13 14:45:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:12,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:13,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 512 [2024-11-13 14:45:13,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 482 transitions, 997 flow. Second operand has 6 states, 6 states have (on average 399.0) internal successors, (2394), 6 states have internal predecessors, (2394), 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) [2024-11-13 14:45:13,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:13,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 512 [2024-11-13 14:45:13,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:14,357 INFO L124 PetriNetUnfolderBase]: 321/1998 cut-off events. [2024-11-13 14:45:14,358 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-13 14:45:14,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2839 conditions, 1998 events. 321/1998 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10773 event pairs, 288 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2329. Up to 780 conditions per place. [2024-11-13 14:45:14,370 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 91 selfloop transitions, 5 changer transitions 0/481 dead transitions. [2024-11-13 14:45:14,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 481 transitions, 1187 flow [2024-11-13 14:45:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2455 transitions. [2024-11-13 14:45:14,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7991536458333334 [2024-11-13 14:45:14,379 INFO L175 Difference]: Start difference. First operand has 485 places, 482 transitions, 997 flow. Second operand 6 states and 2455 transitions. [2024-11-13 14:45:14,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 481 transitions, 1187 flow [2024-11-13 14:45:14,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 481 transitions, 1177 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:14,393 INFO L231 Difference]: Finished difference. Result has 484 places, 481 transitions, 995 flow [2024-11-13 14:45:14,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=995, PETRI_PLACES=484, PETRI_TRANSITIONS=481} [2024-11-13 14:45:14,395 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -3 predicate places. [2024-11-13 14:45:14,396 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 481 transitions, 995 flow [2024-11-13 14:45:14,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.0) internal successors, (2394), 6 states have internal predecessors, (2394), 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) [2024-11-13 14:45:14,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:14,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:14,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:45:14,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:14,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash 100181025, now seen corresponding path program 1 times [2024-11-13 14:45:14,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:14,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361343785] [2024-11-13 14:45:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:15,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:15,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361343785] [2024-11-13 14:45:15,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361343785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:15,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:15,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:15,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803838196] [2024-11-13 14:45:15,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:15,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:15,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:15,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 512 [2024-11-13 14:45:15,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 481 transitions, 995 flow. Second operand has 6 states, 6 states have (on average 399.0) internal successors, (2394), 6 states have internal predecessors, (2394), 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) [2024-11-13 14:45:15,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:15,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 512 [2024-11-13 14:45:15,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:16,253 INFO L124 PetriNetUnfolderBase]: 321/1994 cut-off events. [2024-11-13 14:45:16,253 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-13 14:45:16,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2835 conditions, 1994 events. 321/1994 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10731 event pairs, 288 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2344. Up to 780 conditions per place. [2024-11-13 14:45:16,260 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 91 selfloop transitions, 5 changer transitions 0/480 dead transitions. [2024-11-13 14:45:16,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 480 transitions, 1185 flow [2024-11-13 14:45:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2455 transitions. [2024-11-13 14:45:16,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7991536458333334 [2024-11-13 14:45:16,266 INFO L175 Difference]: Start difference. First operand has 484 places, 481 transitions, 995 flow. Second operand 6 states and 2455 transitions. [2024-11-13 14:45:16,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 480 transitions, 1185 flow [2024-11-13 14:45:16,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 480 transitions, 1175 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:16,274 INFO L231 Difference]: Finished difference. Result has 483 places, 480 transitions, 993 flow [2024-11-13 14:45:16,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=983, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=993, PETRI_PLACES=483, PETRI_TRANSITIONS=480} [2024-11-13 14:45:16,276 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -4 predicate places. [2024-11-13 14:45:16,276 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 480 transitions, 993 flow [2024-11-13 14:45:16,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.0) internal successors, (2394), 6 states have internal predecessors, (2394), 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) [2024-11-13 14:45:16,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:16,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:16,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:45:16,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:16,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1391801416, now seen corresponding path program 1 times [2024-11-13 14:45:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:16,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337325461] [2024-11-13 14:45:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:17,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:17,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337325461] [2024-11-13 14:45:17,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337325461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:17,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:45:17,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:45:17,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076443540] [2024-11-13 14:45:17,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:17,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:17,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:17,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:17,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:45:17,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 512 [2024-11-13 14:45:17,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 480 transitions, 993 flow. Second operand has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 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) [2024-11-13 14:45:17,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:17,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 512 [2024-11-13 14:45:17,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:18,458 INFO L124 PetriNetUnfolderBase]: 321/1990 cut-off events. [2024-11-13 14:45:18,458 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-13 14:45:18,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2851 conditions, 1990 events. 321/1990 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10754 event pairs, 288 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2357. Up to 800 conditions per place. [2024-11-13 14:45:18,469 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 96 selfloop transitions, 5 changer transitions 0/479 dead transitions. [2024-11-13 14:45:18,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 479 transitions, 1193 flow [2024-11-13 14:45:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2430 transitions. [2024-11-13 14:45:18,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.791015625 [2024-11-13 14:45:18,475 INFO L175 Difference]: Start difference. First operand has 483 places, 480 transitions, 993 flow. Second operand 6 states and 2430 transitions. [2024-11-13 14:45:18,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 479 transitions, 1193 flow [2024-11-13 14:45:18,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 479 transitions, 1183 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:18,542 INFO L231 Difference]: Finished difference. Result has 482 places, 479 transitions, 991 flow [2024-11-13 14:45:18,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=991, PETRI_PLACES=482, PETRI_TRANSITIONS=479} [2024-11-13 14:45:18,544 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, -5 predicate places. [2024-11-13 14:45:18,544 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 479 transitions, 991 flow [2024-11-13 14:45:18,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 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) [2024-11-13 14:45:18,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:18,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:18,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:45:18,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:18,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:18,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2136112859, now seen corresponding path program 1 times [2024-11-13 14:45:18,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:18,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918337270] [2024-11-13 14:45:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:18,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:18,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:18,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918337270] [2024-11-13 14:45:18,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918337270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:18,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802367527] [2024-11-13 14:45:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:18,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:18,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:18,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:18,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:45:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:19,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:45:19,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:19,681 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:19,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802367527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:19,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:19,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 14:45:19,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5090600] [2024-11-13 14:45:19,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:19,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:45:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:45:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:45:20,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 512 [2024-11-13 14:45:20,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 479 transitions, 991 flow. Second operand has 10 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 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) [2024-11-13 14:45:20,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:20,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 512 [2024-11-13 14:45:20,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:20,344 INFO L124 PetriNetUnfolderBase]: 16/1011 cut-off events. [2024-11-13 14:45:20,344 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-13 14:45:20,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 1011 events. 16/1011 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1221 event pairs, 8 based on Foata normal form. 4/986 useless extension candidates. Maximal degree in co-relation 899. Up to 38 conditions per place. [2024-11-13 14:45:20,348 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 19 selfloop transitions, 9 changer transitions 0/487 dead transitions. [2024-11-13 14:45:20,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 487 transitions, 1065 flow [2024-11-13 14:45:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:45:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 14:45:20,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4269 transitions. [2024-11-13 14:45:20,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9264322916666666 [2024-11-13 14:45:20,355 INFO L175 Difference]: Start difference. First operand has 482 places, 479 transitions, 991 flow. Second operand 9 states and 4269 transitions. [2024-11-13 14:45:20,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 487 transitions, 1065 flow [2024-11-13 14:45:20,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 487 transitions, 1055 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:20,364 INFO L231 Difference]: Finished difference. Result has 488 places, 485 transitions, 1031 flow [2024-11-13 14:45:20,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1031, PETRI_PLACES=488, PETRI_TRANSITIONS=485} [2024-11-13 14:45:20,366 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 1 predicate places. [2024-11-13 14:45:20,366 INFO L471 AbstractCegarLoop]: Abstraction has has 488 places, 485 transitions, 1031 flow [2024-11-13 14:45:20,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 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) [2024-11-13 14:45:20,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:20,370 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:20,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:45:20,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 14:45:20,575 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:20,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:20,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1778373415, now seen corresponding path program 2 times [2024-11-13 14:45:20,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:20,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570442017] [2024-11-13 14:45:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:20,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:21,429 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-13 14:45:21,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570442017] [2024-11-13 14:45:21,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570442017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881806770] [2024-11-13 14:45:21,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:45:21,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:21,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:21,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:21,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:45:21,861 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:45:21,861 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:45:21,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:45:21,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:21,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:45:21,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 14:45:22,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:45:22,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 14:45:22,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:45:22,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 14:45:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-13 14:45:22,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:45:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881806770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:22,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:45:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-13 14:45:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318840117] [2024-11-13 14:45:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:22,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:22,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:22,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:45:24,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 512 [2024-11-13 14:45:24,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 485 transitions, 1031 flow. Second operand has 6 states, 6 states have (on average 429.3333333333333) internal successors, (2576), 6 states have internal predecessors, (2576), 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) [2024-11-13 14:45:24,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:24,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 512 [2024-11-13 14:45:24,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:24,792 INFO L124 PetriNetUnfolderBase]: 84/1328 cut-off events. [2024-11-13 14:45:24,793 INFO L125 PetriNetUnfolderBase]: For 14/18 co-relation queries the response was YES. [2024-11-13 14:45:24,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1328 events. 84/1328 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3134 event pairs, 64 based on Foata normal form. 0/1255 useless extension candidates. Maximal degree in co-relation 1071. Up to 355 conditions per place. [2024-11-13 14:45:24,799 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 62 selfloop transitions, 5 changer transitions 0/484 dead transitions. [2024-11-13 14:45:24,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 484 transitions, 1163 flow [2024-11-13 14:45:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2600 transitions. [2024-11-13 14:45:24,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463541666666666 [2024-11-13 14:45:24,804 INFO L175 Difference]: Start difference. First operand has 488 places, 485 transitions, 1031 flow. Second operand 6 states and 2600 transitions. [2024-11-13 14:45:24,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 484 transitions, 1163 flow [2024-11-13 14:45:24,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 484 transitions, 1157 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 14:45:24,814 INFO L231 Difference]: Finished difference. Result has 491 places, 484 transitions, 1033 flow [2024-11-13 14:45:24,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1033, PETRI_PLACES=491, PETRI_TRANSITIONS=484} [2024-11-13 14:45:24,816 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 4 predicate places. [2024-11-13 14:45:24,816 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 484 transitions, 1033 flow [2024-11-13 14:45:24,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.3333333333333) internal successors, (2576), 6 states have internal predecessors, (2576), 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) [2024-11-13 14:45:24,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:24,818 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:24,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:45:25,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 14:45:25,023 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:25,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 911925391, now seen corresponding path program 1 times [2024-11-13 14:45:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:25,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533004562] [2024-11-13 14:45:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:25,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-13 14:45:25,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:25,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533004562] [2024-11-13 14:45:25,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533004562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:25,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076297314] [2024-11-13 14:45:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:25,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:25,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:25,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:25,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:45:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:26,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:45:26,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:26,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:27,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076297314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:27,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:27,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-13 14:45:27,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822189207] [2024-11-13 14:45:27,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:27,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 14:45:27,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:27,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 14:45:27,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:45:27,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 512 [2024-11-13 14:45:27,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 484 transitions, 1033 flow. Second operand has 19 states, 19 states have (on average 467.5263157894737) internal successors, (8883), 19 states have internal predecessors, (8883), 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) [2024-11-13 14:45:27,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:27,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 512 [2024-11-13 14:45:27,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:30,207 INFO L124 PetriNetUnfolderBase]: 17/2390 cut-off events. [2024-11-13 14:45:30,207 INFO L125 PetriNetUnfolderBase]: For 80/81 co-relation queries the response was YES. [2024-11-13 14:45:30,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2686 conditions, 2390 events. 17/2390 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1216 event pairs, 8 based on Foata normal form. 13/2375 useless extension candidates. Maximal degree in co-relation 2457. Up to 40 conditions per place. [2024-11-13 14:45:30,214 INFO L140 encePairwiseOnDemand]: 501/512 looper letters, 51 selfloop transitions, 68 changer transitions 0/570 dead transitions. [2024-11-13 14:45:30,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 570 transitions, 1681 flow [2024-11-13 14:45:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-13 14:45:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-13 14:45:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 29427 transitions. [2024-11-13 14:45:30,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9122953869047619 [2024-11-13 14:45:30,254 INFO L175 Difference]: Start difference. First operand has 491 places, 484 transitions, 1033 flow. Second operand 63 states and 29427 transitions. [2024-11-13 14:45:30,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 570 transitions, 1681 flow [2024-11-13 14:45:30,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 570 transitions, 1671 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:30,266 INFO L231 Difference]: Finished difference. Result has 564 places, 546 transitions, 1543 flow [2024-11-13 14:45:30,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1543, PETRI_PLACES=564, PETRI_TRANSITIONS=546} [2024-11-13 14:45:30,268 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 77 predicate places. [2024-11-13 14:45:30,269 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 546 transitions, 1543 flow [2024-11-13 14:45:30,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 467.5263157894737) internal successors, (8883), 19 states have internal predecessors, (8883), 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) [2024-11-13 14:45:30,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:30,277 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:30,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:45:30,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 14:45:30,482 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:30,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:30,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2143426142, now seen corresponding path program 2 times [2024-11-13 14:45:30,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:30,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325073917] [2024-11-13 14:45:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:30,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 14:45:35,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:35,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325073917] [2024-11-13 14:45:35,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325073917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:35,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424862413] [2024-11-13 14:45:35,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:45:35,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:35,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:35,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:35,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:45:36,021 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:45:36,021 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:45:36,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:45:36,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:36,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:45:36,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 14:45:36,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:45:36,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 14:45:36,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:45:36,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 14:45:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-11-13 14:45:36,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:45:36,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424862413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:45:36,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:45:36,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 14:45:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929774795] [2024-11-13 14:45:36,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:45:36,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:45:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:36,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:45:36,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:45:38,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 512 [2024-11-13 14:45:38,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 546 transitions, 1543 flow. Second operand has 6 states, 6 states have (on average 429.3333333333333) internal successors, (2576), 6 states have internal predecessors, (2576), 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) [2024-11-13 14:45:38,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:38,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 512 [2024-11-13 14:45:38,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:39,172 INFO L124 PetriNetUnfolderBase]: 85/2707 cut-off events. [2024-11-13 14:45:39,172 INFO L125 PetriNetUnfolderBase]: For 436/440 co-relation queries the response was YES. [2024-11-13 14:45:39,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3837 conditions, 2707 events. 85/2707 cut-off events. For 436/440 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3115 event pairs, 64 based on Foata normal form. 0/2635 useless extension candidates. Maximal degree in co-relation 3140. Up to 783 conditions per place. [2024-11-13 14:45:39,183 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 62 selfloop transitions, 5 changer transitions 0/545 dead transitions. [2024-11-13 14:45:39,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 545 transitions, 1675 flow [2024-11-13 14:45:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:45:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:45:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2600 transitions. [2024-11-13 14:45:39,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463541666666666 [2024-11-13 14:45:39,189 INFO L175 Difference]: Start difference. First operand has 564 places, 546 transitions, 1543 flow. Second operand 6 states and 2600 transitions. [2024-11-13 14:45:39,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 545 transitions, 1675 flow [2024-11-13 14:45:39,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 545 transitions, 1599 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-13 14:45:39,206 INFO L231 Difference]: Finished difference. Result has 561 places, 545 transitions, 1475 flow [2024-11-13 14:45:39,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=1465, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1475, PETRI_PLACES=561, PETRI_TRANSITIONS=545} [2024-11-13 14:45:39,207 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 74 predicate places. [2024-11-13 14:45:39,207 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 545 transitions, 1475 flow [2024-11-13 14:45:39,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.3333333333333) internal successors, (2576), 6 states have internal predecessors, (2576), 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) [2024-11-13 14:45:39,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:39,210 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:39,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 14:45:39,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:39,410 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:39,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1061532278, now seen corresponding path program 1 times [2024-11-13 14:45:39,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:39,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146335156] [2024-11-13 14:45:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:43,363 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 14:45:43,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:43,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146335156] [2024-11-13 14:45:43,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146335156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:43,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9477423] [2024-11-13 14:45:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:43,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:43,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:43,367 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:43,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:45:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:45,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 5798 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:45:45,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 14:45:46,276 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:47,402 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-13 14:45:47,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9477423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:47,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:47,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-13 14:45:47,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151745700] [2024-11-13 14:45:47,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:47,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 14:45:47,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:47,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 14:45:47,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:45:47,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 512 [2024-11-13 14:45:47,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 545 transitions, 1475 flow. Second operand has 34 states, 34 states have (on average 473.11764705882354) internal successors, (16086), 34 states have internal predecessors, (16086), 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) [2024-11-13 14:45:47,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:45:47,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 512 [2024-11-13 14:45:47,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:45:51,161 INFO L124 PetriNetUnfolderBase]: 17/4549 cut-off events. [2024-11-13 14:45:51,161 INFO L125 PetriNetUnfolderBase]: For 3211/3212 co-relation queries the response was YES. [2024-11-13 14:45:51,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5345 conditions, 4549 events. 17/4549 cut-off events. For 3211/3212 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1214 event pairs, 8 based on Foata normal form. 24/4546 useless extension candidates. Maximal degree in co-relation 5100. Up to 78 conditions per place. [2024-11-13 14:45:51,171 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 51 selfloop transitions, 135 changer transitions 0/646 dead transitions. [2024-11-13 14:45:51,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 646 transitions, 2611 flow [2024-11-13 14:45:51,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-13 14:45:51,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-13 14:45:51,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 21279 transitions. [2024-11-13 14:45:51,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235677083333333 [2024-11-13 14:45:51,201 INFO L175 Difference]: Start difference. First operand has 561 places, 545 transitions, 1475 flow. Second operand 45 states and 21279 transitions. [2024-11-13 14:45:51,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 646 transitions, 2611 flow [2024-11-13 14:45:51,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 646 transitions, 2601 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:45:51,227 INFO L231 Difference]: Finished difference. Result has 609 places, 620 transitions, 2339 flow [2024-11-13 14:45:51,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=1465, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2339, PETRI_PLACES=609, PETRI_TRANSITIONS=620} [2024-11-13 14:45:51,228 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 122 predicate places. [2024-11-13 14:45:51,228 INFO L471 AbstractCegarLoop]: Abstraction has has 609 places, 620 transitions, 2339 flow [2024-11-13 14:45:51,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 473.11764705882354) internal successors, (16086), 34 states have internal predecessors, (16086), 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) [2024-11-13 14:45:51,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:45:51,235 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:45:51,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:45:51,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 14:45:51,435 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:45:51,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:51,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2033728906, now seen corresponding path program 2 times [2024-11-13 14:45:51,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:51,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817217503] [2024-11-13 14:45:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:46:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-13 14:46:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:46:07,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817217503] [2024-11-13 14:46:07,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817217503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:46:07,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937583903] [2024-11-13 14:46:07,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:46:07,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:46:07,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:46:07,367 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:46:07,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:46:09,219 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:46:09,219 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:46:09,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:46:09,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:46:09,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 14:46:09,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-13 14:46:09,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:46:09,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-13 14:46:09,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:46:09,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-13 14:46:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-11-13 14:46:09,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:46:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937583903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:46:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:46:09,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 39 [2024-11-13 14:46:09,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549820709] [2024-11-13 14:46:09,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:46:09,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:46:09,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:46:09,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:46:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 14:46:10,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 512 [2024-11-13 14:46:10,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 620 transitions, 2339 flow. Second operand has 8 states, 8 states have (on average 391.625) internal successors, (3133), 8 states have internal predecessors, (3133), 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) [2024-11-13 14:46:10,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:46:10,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 512 [2024-11-13 14:46:10,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:46:17,576 INFO L124 PetriNetUnfolderBase]: 630/6829 cut-off events. [2024-11-13 14:46:17,577 INFO L125 PetriNetUnfolderBase]: For 1224/1240 co-relation queries the response was YES. [2024-11-13 14:46:17,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10340 conditions, 6829 events. 630/6829 cut-off events. For 1224/1240 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 20051 event pairs, 468 based on Foata normal form. 3/6596 useless extension candidates. Maximal degree in co-relation 6581. Up to 1624 conditions per place. [2024-11-13 14:46:17,606 INFO L140 encePairwiseOnDemand]: 501/512 looper letters, 176 selfloop transitions, 10 changer transitions 0/701 dead transitions. [2024-11-13 14:46:17,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 701 transitions, 2873 flow [2024-11-13 14:46:17,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:46:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 14:46:17,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3268 transitions. [2024-11-13 14:46:17,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7978515625 [2024-11-13 14:46:17,613 INFO L175 Difference]: Start difference. First operand has 609 places, 620 transitions, 2339 flow. Second operand 8 states and 3268 transitions. [2024-11-13 14:46:17,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 701 transitions, 2873 flow [2024-11-13 14:46:17,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 701 transitions, 2765 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-13 14:46:17,655 INFO L231 Difference]: Finished difference. Result has 603 places, 626 transitions, 2290 flow [2024-11-13 14:46:17,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=2231, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2290, PETRI_PLACES=603, PETRI_TRANSITIONS=626} [2024-11-13 14:46:17,658 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 116 predicate places. [2024-11-13 14:46:17,659 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 626 transitions, 2290 flow [2024-11-13 14:46:17,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 391.625) internal successors, (3133), 8 states have internal predecessors, (3133), 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) [2024-11-13 14:46:17,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:46:17,661 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:46:17,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 14:46:17,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 14:46:17,862 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:46:17,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:46:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash -602403943, now seen corresponding path program 1 times [2024-11-13 14:46:17,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:46:17,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652872775] [2024-11-13 14:46:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:46:17,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:46:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:46:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 39251 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9480 trivial. 0 not checked. [2024-11-13 14:46:32,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:46:32,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652872775] [2024-11-13 14:46:32,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652872775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:46:32,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114041142] [2024-11-13 14:46:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:46:32,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:46:32,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:46:32,780 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:46:32,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:46:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:46:36,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 11739 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 14:46:36,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:46:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 39251 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9480 trivial. 0 not checked. [2024-11-13 14:46:38,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:46:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 39251 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9480 trivial. 0 not checked. [2024-11-13 14:46:41,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114041142] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:46:41,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:46:41,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-13 14:46:41,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427723140] [2024-11-13 14:46:41,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:46:41,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-13 14:46:41,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:46:41,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-13 14:46:41,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 14:46:41,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 512 [2024-11-13 14:46:41,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 626 transitions, 2290 flow. Second operand has 63 states, 63 states have (on average 473.1111111111111) internal successors, (29806), 63 states have internal predecessors, (29806), 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) [2024-11-13 14:46:41,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:46:41,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 512 [2024-11-13 14:46:41,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:46:54,968 INFO L124 PetriNetUnfolderBase]: 25/8723 cut-off events. [2024-11-13 14:46:54,968 INFO L125 PetriNetUnfolderBase]: For 13380/13383 co-relation queries the response was YES. [2024-11-13 14:46:54,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10681 conditions, 8723 events. 25/8723 cut-off events. For 13380/13383 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2005 event pairs, 9 based on Foata normal form. 45/8730 useless extension candidates. Maximal degree in co-relation 10244. Up to 168 conditions per place. [2024-11-13 14:46:54,990 INFO L140 encePairwiseOnDemand]: 506/512 looper letters, 96 selfloop transitions, 270 changer transitions 0/832 dead transitions. [2024-11-13 14:46:54,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 832 transitions, 5208 flow [2024-11-13 14:46:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-13 14:46:54,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-11-13 14:46:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 42541 transitions. [2024-11-13 14:46:55,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9231987847222223 [2024-11-13 14:46:55,046 INFO L175 Difference]: Start difference. First operand has 603 places, 626 transitions, 2290 flow. Second operand 90 states and 42541 transitions. [2024-11-13 14:46:55,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 832 transitions, 5208 flow [2024-11-13 14:46:55,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 832 transitions, 5201 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:46:55,091 INFO L231 Difference]: Finished difference. Result has 706 places, 764 transitions, 4275 flow [2024-11-13 14:46:55,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=2283, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4275, PETRI_PLACES=706, PETRI_TRANSITIONS=764} [2024-11-13 14:46:55,093 INFO L277 CegarLoopForPetriNet]: 487 programPoint places, 219 predicate places. [2024-11-13 14:46:55,093 INFO L471 AbstractCegarLoop]: Abstraction has has 706 places, 764 transitions, 4275 flow [2024-11-13 14:46:55,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 473.1111111111111) internal successors, (29806), 63 states have internal predecessors, (29806), 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) [2024-11-13 14:46:55,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:46:55,100 INFO L204 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:46:55,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 14:46:55,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:46:55,301 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:46:55,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:46:55,303 INFO L85 PathProgramCache]: Analyzing trace with hash -62143207, now seen corresponding path program 2 times [2024-11-13 14:46:55,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:46:55,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920744770] [2024-11-13 14:46:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:46:55,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:46:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:47:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 159461 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78370 trivial. 0 not checked. [2024-11-13 14:47:15,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:47:15,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920744770] [2024-11-13 14:47:15,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920744770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:47:15,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716441331] [2024-11-13 14:47:15,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:47:15,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:47:15,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:47:15,976 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:47:16,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7730c10d-38a9-4295-b003-856b4f7630e4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:47:19,961 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 14:47:19,961 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:47:19,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:47:20,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:47:20,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 14:47:20,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 14:47:20,367 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:47:20,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 14:47:20,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:47:20,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 14:47:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 159461 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159457 trivial. 0 not checked. [2024-11-13 14:47:20,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:47:20,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716441331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:47:20,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:47:20,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-13 14:47:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664948193] [2024-11-13 14:47:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:47:20,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:47:20,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:47:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:47:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:47:20,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 512 [2024-11-13 14:47:20,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 706 places, 764 transitions, 4275 flow. Second operand has 6 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 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) [2024-11-13 14:47:20,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:47:20,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 512 [2024-11-13 14:47:20,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand