./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.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_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/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_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/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_0409d812-bd2d-472a-b41e-6f9b7da67ca9/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 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:31:03,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:31:03,948 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:31:03,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:31:03,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:31:03,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:31:03,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:31:03,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:31:03,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:31:03,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:31:03,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:31:03,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:31:03,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:31:03,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:31:03,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:31:03,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:31:03,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:31:03,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:31:03,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:31:03,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:31:03,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:31:03,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:31:03,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:31:03,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:31:03,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:31:03,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:31:03,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:31:03,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:31:03,984 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_0409d812-bd2d-472a-b41e-6f9b7da67ca9/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 -> 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 [2024-11-13 16:31:04,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:31:04,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:31:04,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:31:04,326 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:31:04,326 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:31:04,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i Unable to find full path for "g++" [2024-11-13 16:31:06,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:31:06,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:31:06,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2024-11-13 16:31:06,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/data/4117f6371/63eb9e79d6e04067b8eab44aff929e2d/FLAG87d90d26f [2024-11-13 16:31:06,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/data/4117f6371/63eb9e79d6e04067b8eab44aff929e2d [2024-11-13 16:31:06,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:31:06,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:31:06,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:31:06,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:31:06,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:31:06,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:31:06" (1/1) ... [2024-11-13 16:31:06,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4346e3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:06, skipping insertion in model container [2024-11-13 16:31:06,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:31:06" (1/1) ... [2024-11-13 16:31:06,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:31:07,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:31:07,367 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:31:07,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:31:07,545 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:31:07,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07 WrapperNode [2024-11-13 16:31:07,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:31:07,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:31:07,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:31:07,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:31:07,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,650 INFO L138 Inliner]: procedures = 372, calls = 118, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 328 [2024-11-13 16:31:07,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:31:07,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:31:07,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:31:07,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:31:07,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:31:07,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:31:07,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:31:07,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:31:07,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (1/1) ... [2024-11-13 16:31:07,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:31:07,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:07,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:31:07,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:31:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:31:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:31:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:31:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 16:31:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 16:31:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:31:07,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:31:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:31:07,808 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 16:31:08,015 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:31:08,018 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:31:08,890 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:31:08,890 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:31:08,938 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:31:08,938 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:31:08,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:08 BoogieIcfgContainer [2024-11-13 16:31:08,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:31:08,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:31:08,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:31:08,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:31:08,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:31:06" (1/3) ... [2024-11-13 16:31:08,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e99d954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:31:08, skipping insertion in model container [2024-11-13 16:31:08,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:07" (2/3) ... [2024-11-13 16:31:08,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e99d954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:31:08, skipping insertion in model container [2024-11-13 16:31:08,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:08" (3/3) ... [2024-11-13 16:31:08,951 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_10-arraylist_rc.i [2024-11-13 16:31:08,967 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:31:08,968 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_10-arraylist_rc.i that has 2 procedures, 366 locations, 1 initial locations, 2 loop locations, and 18 error locations. [2024-11-13 16:31:08,968 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:31:09,137 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 16:31:09,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 371 transitions, 746 flow [2024-11-13 16:31:09,478 INFO L124 PetriNetUnfolderBase]: 6/370 cut-off events. [2024-11-13 16:31:09,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:31:09,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 370 events. 6/370 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 398 event pairs, 0 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 242. Up to 2 conditions per place. [2024-11-13 16:31:09,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 371 transitions, 746 flow [2024-11-13 16:31:09,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 368 places, 370 transitions, 743 flow [2024-11-13 16:31:09,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:31:09,540 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;@404663a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:31:09,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-13 16:31:09,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:31:09,595 INFO L124 PetriNetUnfolderBase]: 4/159 cut-off events. [2024-11-13 16:31:09,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:31:09,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:09,597 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] [2024-11-13 16:31:09,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:09,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2109313649, now seen corresponding path program 1 times [2024-11-13 16:31:09,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:09,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333920573] [2024-11-13 16:31:09,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:09,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:10,286 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 16:31:10,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:10,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333920573] [2024-11-13 16:31:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333920573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:10,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:10,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:31:10,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394740241] [2024-11-13 16:31:10,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:10,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:31:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:10,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:31:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:31:10,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 371 [2024-11-13 16:31:10,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 370 transitions, 743 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:31:10,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:10,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 371 [2024-11-13 16:31:10,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:10,557 INFO L124 PetriNetUnfolderBase]: 8/446 cut-off events. [2024-11-13 16:31:10,557 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:31:10,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 446 events. 8/446 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 872 event pairs, 6 based on Foata normal form. 6/421 useless extension candidates. Maximal degree in co-relation 249. Up to 24 conditions per place. [2024-11-13 16:31:10,561 INFO L140 encePairwiseOnDemand]: 364/371 looper letters, 10 selfloop transitions, 2 changer transitions 1/367 dead transitions. [2024-11-13 16:31:10,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 367 transitions, 761 flow [2024-11-13 16:31:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:31:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:31:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2024-11-13 16:31:10,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9757412398921833 [2024-11-13 16:31:10,585 INFO L175 Difference]: Start difference. First operand has 368 places, 370 transitions, 743 flow. Second operand 3 states and 1086 transitions. [2024-11-13 16:31:10,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 367 transitions, 761 flow [2024-11-13 16:31:10,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 367 transitions, 760 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:31:10,606 INFO L231 Difference]: Finished difference. Result has 370 places, 366 transitions, 744 flow [2024-11-13 16:31:10,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=370, PETRI_TRANSITIONS=366} [2024-11-13 16:31:10,615 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 2 predicate places. [2024-11-13 16:31:10,615 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 366 transitions, 744 flow [2024-11-13 16:31:10,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:31:10,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:10,618 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] [2024-11-13 16:31:10,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:31:10,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:10,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:10,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2018799822, now seen corresponding path program 1 times [2024-11-13 16:31:10,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:10,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722615285] [2024-11-13 16:31:10,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:10,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:11,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722615285] [2024-11-13 16:31:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722615285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379015347] [2024-11-13 16:31:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:11,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:11,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:11,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:11,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:31:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:11,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:31:11,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:11,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:11,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379015347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:11,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:11,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 16:31:11,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661676012] [2024-11-13 16:31:11,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:11,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:31:11,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:11,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:31:11,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:31:11,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 371 [2024-11-13 16:31:11,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 366 transitions, 744 flow. Second operand has 10 states, 10 states have (on average 354.8) internal successors, (3548), 10 states have internal predecessors, (3548), 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 16:31:11,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:11,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 371 [2024-11-13 16:31:11,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:11,824 INFO L124 PetriNetUnfolderBase]: 8/452 cut-off events. [2024-11-13 16:31:11,824 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:31:11,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 452 events. 8/452 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 865 event pairs, 6 based on Foata normal form. 2/424 useless extension candidates. Maximal degree in co-relation 384. Up to 24 conditions per place. [2024-11-13 16:31:11,829 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 14 selfloop transitions, 9 changer transitions 0/374 dead transitions. [2024-11-13 16:31:11,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 374 transitions, 808 flow [2024-11-13 16:31:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:31:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:31:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3202 transitions. [2024-11-13 16:31:11,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9589697514225816 [2024-11-13 16:31:11,841 INFO L175 Difference]: Start difference. First operand has 370 places, 366 transitions, 744 flow. Second operand 9 states and 3202 transitions. [2024-11-13 16:31:11,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 374 transitions, 808 flow [2024-11-13 16:31:11,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 374 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:31:11,856 INFO L231 Difference]: Finished difference. Result has 379 places, 372 transitions, 792 flow [2024-11-13 16:31:11,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=792, PETRI_PLACES=379, PETRI_TRANSITIONS=372} [2024-11-13 16:31:11,858 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 11 predicate places. [2024-11-13 16:31:11,858 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 372 transitions, 792 flow [2024-11-13 16:31:11,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 354.8) internal successors, (3548), 10 states have internal predecessors, (3548), 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 16:31:11,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:11,861 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:11,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 16:31:12,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:12,065 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:12,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash 872406382, now seen corresponding path program 2 times [2024-11-13 16:31:12,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:12,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505637110] [2024-11-13 16:31:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:12,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:12,572 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:12,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:12,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505637110] [2024-11-13 16:31:12,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505637110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:12,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824436707] [2024-11-13 16:31:12,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:31:12,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:12,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:12,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:12,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:31:12,760 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:31:12,760 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:31:12,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:31:12,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:12,811 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 16:31:12,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-13 16:31:12,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:12,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-13 16:31:12,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:12,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-13 16:31:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 16:31:12,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:31:12,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824436707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:12,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:31:12,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 16:31:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74348010] [2024-11-13 16:31:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:12,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:13,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:13,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:13,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:31:13,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 371 [2024-11-13 16:31:13,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 372 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 285.3333333333333) internal successors, (1712), 6 states have internal predecessors, (1712), 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 16:31:13,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:13,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 371 [2024-11-13 16:31:13,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:14,344 INFO L124 PetriNetUnfolderBase]: 366/1727 cut-off events. [2024-11-13 16:31:14,344 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 16:31:14,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2569 conditions, 1727 events. 366/1727 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10061 event pairs, 364 based on Foata normal form. 0/1601 useless extension candidates. Maximal degree in co-relation 2426. Up to 800 conditions per place. [2024-11-13 16:31:14,393 INFO L140 encePairwiseOnDemand]: 359/371 looper letters, 71 selfloop transitions, 10 changer transitions 0/370 dead transitions. [2024-11-13 16:31:14,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 370 transitions, 950 flow [2024-11-13 16:31:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:14,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1787 transitions. [2024-11-13 16:31:14,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027852650494159 [2024-11-13 16:31:14,398 INFO L175 Difference]: Start difference. First operand has 379 places, 372 transitions, 792 flow. Second operand 6 states and 1787 transitions. [2024-11-13 16:31:14,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 370 transitions, 950 flow [2024-11-13 16:31:14,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 370 transitions, 944 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 16:31:14,405 INFO L231 Difference]: Finished difference. Result has 381 places, 370 transitions, 802 flow [2024-11-13 16:31:14,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=381, PETRI_TRANSITIONS=370} [2024-11-13 16:31:14,407 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 13 predicate places. [2024-11-13 16:31:14,407 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 370 transitions, 802 flow [2024-11-13 16:31:14,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 285.3333333333333) internal successors, (1712), 6 states have internal predecessors, (1712), 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 16:31:14,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:14,408 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:14,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:31:14,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:14,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:14,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:14,610 INFO L85 PathProgramCache]: Analyzing trace with hash 855700477, now seen corresponding path program 1 times [2024-11-13 16:31:14,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:14,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903502470] [2024-11-13 16:31:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:14,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 16:31:14,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:14,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903502470] [2024-11-13 16:31:14,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903502470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:14,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:14,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:31:14,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138439848] [2024-11-13 16:31:14,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:14,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:31:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:31:14,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:31:14,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 371 [2024-11-13 16:31:14,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 370 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 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 16:31:14,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:14,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 371 [2024-11-13 16:31:14,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:14,972 INFO L124 PetriNetUnfolderBase]: 8/561 cut-off events. [2024-11-13 16:31:14,973 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 16:31:14,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 561 events. 8/561 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 862 event pairs, 6 based on Foata normal form. 1/528 useless extension candidates. Maximal degree in co-relation 494. Up to 24 conditions per place. [2024-11-13 16:31:14,976 INFO L140 encePairwiseOnDemand]: 368/371 looper letters, 10 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2024-11-13 16:31:14,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 371 transitions, 828 flow [2024-11-13 16:31:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:31:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:31:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2024-11-13 16:31:14,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9712488769092543 [2024-11-13 16:31:14,979 INFO L175 Difference]: Start difference. First operand has 381 places, 370 transitions, 802 flow. Second operand 3 states and 1081 transitions. [2024-11-13 16:31:14,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 371 transitions, 828 flow [2024-11-13 16:31:14,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 371 transitions, 808 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:14,987 INFO L231 Difference]: Finished difference. Result has 379 places, 371 transitions, 794 flow [2024-11-13 16:31:14,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=379, PETRI_TRANSITIONS=371} [2024-11-13 16:31:14,989 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 11 predicate places. [2024-11-13 16:31:14,989 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 371 transitions, 794 flow [2024-11-13 16:31:14,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 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 16:31:14,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:14,991 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:14,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:31:14,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:14,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1792265693, now seen corresponding path program 1 times [2024-11-13 16:31:14,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:14,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099511416] [2024-11-13 16:31:14,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:14,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099511416] [2024-11-13 16:31:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099511416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109876581] [2024-11-13 16:31:15,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:15,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:15,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:15,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:15,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:31:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:15,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:31:15,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:15,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:15,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:15,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109876581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:15,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:15,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-13 16:31:15,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516160642] [2024-11-13 16:31:15,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:15,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 16:31:15,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:15,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 16:31:15,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:31:15,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 371 [2024-11-13 16:31:15,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 371 transitions, 794 flow. Second operand has 18 states, 18 states have (on average 354.8888888888889) internal successors, (6388), 18 states have internal predecessors, (6388), 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 16:31:15,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:15,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 371 [2024-11-13 16:31:15,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:16,293 INFO L124 PetriNetUnfolderBase]: 8/581 cut-off events. [2024-11-13 16:31:16,293 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-13 16:31:16,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 581 events. 8/581 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 863 event pairs, 6 based on Foata normal form. 4/551 useless extension candidates. Maximal degree in co-relation 476. Up to 24 conditions per place. [2024-11-13 16:31:16,297 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 18 selfloop transitions, 21 changer transitions 0/389 dead transitions. [2024-11-13 16:31:16,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 389 transitions, 960 flow [2024-11-13 16:31:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 16:31:16,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 16:31:16,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7456 transitions. [2024-11-13 16:31:16,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9570016685919651 [2024-11-13 16:31:16,337 INFO L175 Difference]: Start difference. First operand has 379 places, 371 transitions, 794 flow. Second operand 21 states and 7456 transitions. [2024-11-13 16:31:16,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 389 transitions, 960 flow [2024-11-13 16:31:16,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 389 transitions, 958 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:31:16,348 INFO L231 Difference]: Finished difference. Result has 403 places, 384 transitions, 922 flow [2024-11-13 16:31:16,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=922, PETRI_PLACES=403, PETRI_TRANSITIONS=384} [2024-11-13 16:31:16,350 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 35 predicate places. [2024-11-13 16:31:16,351 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 384 transitions, 922 flow [2024-11-13 16:31:16,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 354.8888888888889) internal successors, (6388), 18 states have internal predecessors, (6388), 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 16:31:16,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:16,355 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:16,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:31:16,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:16,556 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:16,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:16,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1420692637, now seen corresponding path program 2 times [2024-11-13 16:31:16,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:16,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432824390] [2024-11-13 16:31:16,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:16,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:17,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:17,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432824390] [2024-11-13 16:31:17,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432824390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:17,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352700015] [2024-11-13 16:31:17,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:31:17,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:17,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:17,168 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:17,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:31:17,344 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:31:17,344 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:31:17,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 16:31:17,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:17,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 16:31:17,388 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 23 treesize of output 22 [2024-11-13 16:31:17,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:17,426 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 32 treesize of output 34 [2024-11-13 16:31:17,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:17,478 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 41 treesize of output 46 [2024-11-13 16:31:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-13 16:31:17,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:31:17,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352700015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:17,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:31:17,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 16:31:17,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071845616] [2024-11-13 16:31:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:17,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:17,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:17,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 16:31:18,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 371 [2024-11-13 16:31:18,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 384 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 285.3333333333333) internal successors, (1712), 6 states have internal predecessors, (1712), 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 16:31:18,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:18,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 371 [2024-11-13 16:31:18,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:18,930 INFO L124 PetriNetUnfolderBase]: 366/1854 cut-off events. [2024-11-13 16:31:18,930 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-13 16:31:18,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 1854 events. 366/1854 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10042 event pairs, 364 based on Foata normal form. 0/1726 useless extension candidates. Maximal degree in co-relation 2581. Up to 830 conditions per place. [2024-11-13 16:31:18,942 INFO L140 encePairwiseOnDemand]: 359/371 looper letters, 71 selfloop transitions, 10 changer transitions 0/382 dead transitions. [2024-11-13 16:31:18,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 382 transitions, 1080 flow [2024-11-13 16:31:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1787 transitions. [2024-11-13 16:31:18,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027852650494159 [2024-11-13 16:31:18,949 INFO L175 Difference]: Start difference. First operand has 403 places, 384 transitions, 922 flow. Second operand 6 states and 1787 transitions. [2024-11-13 16:31:18,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 382 transitions, 1080 flow [2024-11-13 16:31:18,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 382 transitions, 1056 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 16:31:18,960 INFO L231 Difference]: Finished difference. Result has 400 places, 382 transitions, 914 flow [2024-11-13 16:31:18,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=400, PETRI_TRANSITIONS=382} [2024-11-13 16:31:18,965 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 32 predicate places. [2024-11-13 16:31:18,965 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 382 transitions, 914 flow [2024-11-13 16:31:18,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 285.3333333333333) internal successors, (1712), 6 states have internal predecessors, (1712), 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 16:31:18,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:18,968 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:18,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:31:19,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:19,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:19,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:19,170 INFO L85 PathProgramCache]: Analyzing trace with hash -612208446, now seen corresponding path program 1 times [2024-11-13 16:31:19,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:19,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145743242] [2024-11-13 16:31:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:19,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:19,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:19,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145743242] [2024-11-13 16:31:19,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145743242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:19,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875705462] [2024-11-13 16:31:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:19,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:19,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:19,868 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:19,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:31:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:20,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:31:20,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:20,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:31:20,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875705462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:20,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:20,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-13 16:31:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407718838] [2024-11-13 16:31:20,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:20,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 16:31:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:20,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 16:31:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:31:20,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 371 [2024-11-13 16:31:20,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 382 transitions, 914 flow. Second operand has 23 states, 23 states have (on average 355.0) internal successors, (8165), 23 states have internal predecessors, (8165), 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 16:31:20,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:20,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 371 [2024-11-13 16:31:20,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:21,209 INFO L124 PetriNetUnfolderBase]: 8/592 cut-off events. [2024-11-13 16:31:21,209 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-13 16:31:21,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 592 events. 8/592 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 853 event pairs, 6 based on Foata normal form. 3/565 useless extension candidates. Maximal degree in co-relation 498. Up to 24 conditions per place. [2024-11-13 16:31:21,212 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 21 selfloop transitions, 30 changer transitions 0/399 dead transitions. [2024-11-13 16:31:21,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 399 transitions, 1138 flow [2024-11-13 16:31:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 16:31:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 16:31:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 10644 transitions. [2024-11-13 16:31:21,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9563342318059299 [2024-11-13 16:31:21,235 INFO L175 Difference]: Start difference. First operand has 400 places, 382 transitions, 914 flow. Second operand 30 states and 10644 transitions. [2024-11-13 16:31:21,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 399 transitions, 1138 flow [2024-11-13 16:31:21,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 399 transitions, 1118 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:21,293 INFO L231 Difference]: Finished difference. Result has 428 places, 392 transitions, 1046 flow [2024-11-13 16:31:21,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1046, PETRI_PLACES=428, PETRI_TRANSITIONS=392} [2024-11-13 16:31:21,296 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 60 predicate places. [2024-11-13 16:31:21,296 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 392 transitions, 1046 flow [2024-11-13 16:31:21,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 355.0) internal successors, (8165), 23 states have internal predecessors, (8165), 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 16:31:21,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:21,301 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:21,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 16:31:21,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:21,506 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:21,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1981132285, now seen corresponding path program 2 times [2024-11-13 16:31:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:21,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886731608] [2024-11-13 16:31:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:21,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:22,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:22,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886731608] [2024-11-13 16:31:22,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886731608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:22,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:22,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:31:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769934570] [2024-11-13 16:31:22,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:22,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:22,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:22,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:31:23,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 371 [2024-11-13 16:31:23,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 392 transitions, 1046 flow. Second operand has 6 states, 6 states have (on average 281.8333333333333) internal successors, (1691), 6 states have internal predecessors, (1691), 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 16:31:23,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:23,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 371 [2024-11-13 16:31:23,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:23,972 INFO L124 PetriNetUnfolderBase]: 392/1957 cut-off events. [2024-11-13 16:31:23,972 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-13 16:31:23,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3034 conditions, 1957 events. 392/1957 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10839 event pairs, 390 based on Foata normal form. 0/1825 useless extension candidates. Maximal degree in co-relation 2732. Up to 899 conditions per place. [2024-11-13 16:31:23,984 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 83 selfloop transitions, 5 changer transitions 0/391 dead transitions. [2024-11-13 16:31:23,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 391 transitions, 1220 flow [2024-11-13 16:31:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1762 transitions. [2024-11-13 16:31:23,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7915543575920935 [2024-11-13 16:31:23,989 INFO L175 Difference]: Start difference. First operand has 428 places, 392 transitions, 1046 flow. Second operand 6 states and 1762 transitions. [2024-11-13 16:31:23,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 391 transitions, 1220 flow [2024-11-13 16:31:23,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 391 transitions, 1174 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-13 16:31:23,998 INFO L231 Difference]: Finished difference. Result has 414 places, 391 transitions, 1008 flow [2024-11-13 16:31:23,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1008, PETRI_PLACES=414, PETRI_TRANSITIONS=391} [2024-11-13 16:31:23,999 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 46 predicate places. [2024-11-13 16:31:24,000 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 391 transitions, 1008 flow [2024-11-13 16:31:24,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 281.8333333333333) internal successors, (1691), 6 states have internal predecessors, (1691), 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 16:31:24,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:24,001 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:24,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:31:24,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:24,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash -367649029, now seen corresponding path program 1 times [2024-11-13 16:31:24,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:24,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858706638] [2024-11-13 16:31:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:24,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:25,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:25,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858706638] [2024-11-13 16:31:25,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858706638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:25,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:25,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:31:25,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394169097] [2024-11-13 16:31:25,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:25,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:25,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:25,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:25,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:31:26,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 371 [2024-11-13 16:31:26,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 391 transitions, 1008 flow. Second operand has 6 states, 6 states have (on average 309.8333333333333) internal successors, (1859), 6 states have internal predecessors, (1859), 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 16:31:26,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:26,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 371 [2024-11-13 16:31:26,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:26,303 INFO L124 PetriNetUnfolderBase]: 56/831 cut-off events. [2024-11-13 16:31:26,303 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-13 16:31:26,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 831 events. 56/831 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2621 event pairs, 54 based on Foata normal form. 0/779 useless extension candidates. Maximal degree in co-relation 911. Up to 195 conditions per place. [2024-11-13 16:31:26,308 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 57 selfloop transitions, 5 changer transitions 0/390 dead transitions. [2024-11-13 16:31:26,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 390 transitions, 1130 flow [2024-11-13 16:31:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1892 transitions. [2024-11-13 16:31:26,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8499550763701708 [2024-11-13 16:31:26,312 INFO L175 Difference]: Start difference. First operand has 414 places, 391 transitions, 1008 flow. Second operand 6 states and 1892 transitions. [2024-11-13 16:31:26,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 390 transitions, 1130 flow [2024-11-13 16:31:26,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 390 transitions, 1120 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:26,321 INFO L231 Difference]: Finished difference. Result has 413 places, 390 transitions, 1006 flow [2024-11-13 16:31:26,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1006, PETRI_PLACES=413, PETRI_TRANSITIONS=390} [2024-11-13 16:31:26,322 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 45 predicate places. [2024-11-13 16:31:26,323 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 390 transitions, 1006 flow [2024-11-13 16:31:26,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.8333333333333) internal successors, (1859), 6 states have internal predecessors, (1859), 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 16:31:26,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:26,324 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:26,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:31:26,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:26,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash 502236972, now seen corresponding path program 1 times [2024-11-13 16:31:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:26,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929228964] [2024-11-13 16:31:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:27,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:27,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929228964] [2024-11-13 16:31:27,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929228964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:27,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:27,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:31:27,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583729315] [2024-11-13 16:31:27,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:27,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:27,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:27,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:27,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:31:28,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 371 [2024-11-13 16:31:28,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 390 transitions, 1006 flow. Second operand has 6 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 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 16:31:28,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:28,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 371 [2024-11-13 16:31:28,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:28,401 INFO L124 PetriNetUnfolderBase]: 38/746 cut-off events. [2024-11-13 16:31:28,401 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-13 16:31:28,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 746 events. 38/746 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2074 event pairs, 36 based on Foata normal form. 0/707 useless extension candidates. Maximal degree in co-relation 791. Up to 158 conditions per place. [2024-11-13 16:31:28,405 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 53 selfloop transitions, 5 changer transitions 0/389 dead transitions. [2024-11-13 16:31:28,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 389 transitions, 1120 flow [2024-11-13 16:31:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1907 transitions. [2024-11-13 16:31:28,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8566936208445642 [2024-11-13 16:31:28,410 INFO L175 Difference]: Start difference. First operand has 413 places, 390 transitions, 1006 flow. Second operand 6 states and 1907 transitions. [2024-11-13 16:31:28,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 389 transitions, 1120 flow [2024-11-13 16:31:28,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 389 transitions, 1110 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:28,419 INFO L231 Difference]: Finished difference. Result has 412 places, 389 transitions, 1004 flow [2024-11-13 16:31:28,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1004, PETRI_PLACES=412, PETRI_TRANSITIONS=389} [2024-11-13 16:31:28,420 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 44 predicate places. [2024-11-13 16:31:28,420 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 389 transitions, 1004 flow [2024-11-13 16:31:28,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 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 16:31:28,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:28,421 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:28,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:31:28,422 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:28,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:28,422 INFO L85 PathProgramCache]: Analyzing trace with hash 109124054, now seen corresponding path program 1 times [2024-11-13 16:31:28,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:28,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073614876] [2024-11-13 16:31:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:28,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:29,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:29,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073614876] [2024-11-13 16:31:29,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073614876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:29,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:29,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:31:29,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63604970] [2024-11-13 16:31:29,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:29,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:29,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:29,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:31:29,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 371 [2024-11-13 16:31:29,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 389 transitions, 1004 flow. Second operand has 6 states, 6 states have (on average 288.1666666666667) internal successors, (1729), 6 states have internal predecessors, (1729), 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 16:31:29,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:29,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 371 [2024-11-13 16:31:29,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:30,434 INFO L124 PetriNetUnfolderBase]: 366/1861 cut-off events. [2024-11-13 16:31:30,434 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-13 16:31:30,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 1861 events. 366/1861 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9970 event pairs, 364 based on Foata normal form. 0/1741 useless extension candidates. Maximal degree in co-relation 2594. Up to 846 conditions per place. [2024-11-13 16:31:30,446 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 79 selfloop transitions, 5 changer transitions 0/388 dead transitions. [2024-11-13 16:31:30,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 388 transitions, 1170 flow [2024-11-13 16:31:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1777 transitions. [2024-11-13 16:31:30,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.798292902066487 [2024-11-13 16:31:30,451 INFO L175 Difference]: Start difference. First operand has 412 places, 389 transitions, 1004 flow. Second operand 6 states and 1777 transitions. [2024-11-13 16:31:30,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 388 transitions, 1170 flow [2024-11-13 16:31:30,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 388 transitions, 1160 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:30,461 INFO L231 Difference]: Finished difference. Result has 411 places, 388 transitions, 1002 flow [2024-11-13 16:31:30,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1002, PETRI_PLACES=411, PETRI_TRANSITIONS=388} [2024-11-13 16:31:30,464 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 43 predicate places. [2024-11-13 16:31:30,465 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 388 transitions, 1002 flow [2024-11-13 16:31:30,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 288.1666666666667) internal successors, (1729), 6 states have internal predecessors, (1729), 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 16:31:30,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:30,469 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:30,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:31:30,470 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:30,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash -237329659, now seen corresponding path program 1 times [2024-11-13 16:31:30,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:30,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236981180] [2024-11-13 16:31:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:30,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:31,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:31,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236981180] [2024-11-13 16:31:31,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236981180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:31,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:31,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:31:31,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740619453] [2024-11-13 16:31:31,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:31,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:31,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:31,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:31,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:31:31,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 371 [2024-11-13 16:31:31,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 388 transitions, 1002 flow. Second operand has 6 states, 6 states have (on average 289.6666666666667) internal successors, (1738), 6 states have internal predecessors, (1738), 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 16:31:31,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:31,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 371 [2024-11-13 16:31:31,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:32,610 INFO L124 PetriNetUnfolderBase]: 366/1859 cut-off events. [2024-11-13 16:31:32,610 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-13 16:31:32,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1859 events. 366/1859 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9995 event pairs, 364 based on Foata normal form. 0/1741 useless extension candidates. Maximal degree in co-relation 2590. Up to 844 conditions per place. [2024-11-13 16:31:32,620 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 78 selfloop transitions, 5 changer transitions 0/387 dead transitions. [2024-11-13 16:31:32,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 387 transitions, 1166 flow [2024-11-13 16:31:32,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:32,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1782 transitions. [2024-11-13 16:31:32,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8005390835579514 [2024-11-13 16:31:32,623 INFO L175 Difference]: Start difference. First operand has 411 places, 388 transitions, 1002 flow. Second operand 6 states and 1782 transitions. [2024-11-13 16:31:32,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 387 transitions, 1166 flow [2024-11-13 16:31:32,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 387 transitions, 1156 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:32,632 INFO L231 Difference]: Finished difference. Result has 410 places, 387 transitions, 1000 flow [2024-11-13 16:31:32,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1000, PETRI_PLACES=410, PETRI_TRANSITIONS=387} [2024-11-13 16:31:32,633 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 42 predicate places. [2024-11-13 16:31:32,633 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 387 transitions, 1000 flow [2024-11-13 16:31:32,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.6666666666667) internal successors, (1738), 6 states have internal predecessors, (1738), 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 16:31:32,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:32,635 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:32,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:31:32,635 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1548997513, now seen corresponding path program 1 times [2024-11-13 16:31:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42187799] [2024-11-13 16:31:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:32,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:32,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42187799] [2024-11-13 16:31:32,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42187799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:32,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082868418] [2024-11-13 16:31:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:32,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:32,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:32,911 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:32,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:31:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:33,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:31:33,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:33,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:33,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082868418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:33,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:33,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 16:31:33,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632236686] [2024-11-13 16:31:33,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:33,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:31:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:33,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:31:33,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:31:33,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 371 [2024-11-13 16:31:33,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 387 transitions, 1000 flow. Second operand has 10 states, 10 states have (on average 355.0) internal successors, (3550), 10 states have internal predecessors, (3550), 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 16:31:33,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:33,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 371 [2024-11-13 16:31:33,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:34,012 INFO L124 PetriNetUnfolderBase]: 8/689 cut-off events. [2024-11-13 16:31:34,012 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-13 16:31:34,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 689 events. 8/689 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 390 event pairs, 6 based on Foata normal form. 2/671 useless extension candidates. Maximal degree in co-relation 607. Up to 24 conditions per place. [2024-11-13 16:31:34,016 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 14 selfloop transitions, 9 changer transitions 0/395 dead transitions. [2024-11-13 16:31:34,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 395 transitions, 1064 flow [2024-11-13 16:31:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:31:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:31:34,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3202 transitions. [2024-11-13 16:31:34,020 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9589697514225816 [2024-11-13 16:31:34,020 INFO L175 Difference]: Start difference. First operand has 410 places, 387 transitions, 1000 flow. Second operand 9 states and 3202 transitions. [2024-11-13 16:31:34,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 395 transitions, 1064 flow [2024-11-13 16:31:34,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 395 transitions, 1054 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 16:31:34,030 INFO L231 Difference]: Finished difference. Result has 416 places, 393 transitions, 1040 flow [2024-11-13 16:31:34,031 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1040, PETRI_PLACES=416, PETRI_TRANSITIONS=393} [2024-11-13 16:31:34,032 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 48 predicate places. [2024-11-13 16:31:34,032 INFO L471 AbstractCegarLoop]: Abstraction has has 416 places, 393 transitions, 1040 flow [2024-11-13 16:31:34,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 355.0) internal successors, (3550), 10 states have internal predecessors, (3550), 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 16:31:34,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:34,034 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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] [2024-11-13 16:31:34,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:31:34,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 16:31:34,235 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash -612450071, now seen corresponding path program 2 times [2024-11-13 16:31:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:34,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472106283] [2024-11-13 16:31:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:34,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:34,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472106283] [2024-11-13 16:31:34,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472106283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:34,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765256188] [2024-11-13 16:31:34,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:31:34,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:34,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:34,970 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:34,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:31:35,310 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:31:35,310 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:31:35,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 16:31:35,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:35,350 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 16:31:35,366 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 16:31:35,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:35,393 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 16:31:35,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:35,431 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 16:31:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-11-13 16:31:35,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:31:35,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765256188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:35,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:31:35,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 16:31:35,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829178520] [2024-11-13 16:31:35,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:35,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:35,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:31:36,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 371 [2024-11-13 16:31:36,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 393 transitions, 1040 flow. Second operand has 6 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 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 16:31:36,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:36,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 371 [2024-11-13 16:31:36,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:36,877 INFO L124 PetriNetUnfolderBase]: 258/1996 cut-off events. [2024-11-13 16:31:36,878 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-13 16:31:36,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 1996 events. 258/1996 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10065 event pairs, 34 based on Foata normal form. 0/1870 useless extension candidates. Maximal degree in co-relation 2516. Up to 491 conditions per place. [2024-11-13 16:31:36,890 INFO L140 encePairwiseOnDemand]: 348/371 looper letters, 67 selfloop transitions, 70 changer transitions 0/471 dead transitions. [2024-11-13 16:31:36,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 471 transitions, 1470 flow [2024-11-13 16:31:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:36,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1986 transitions. [2024-11-13 16:31:36,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8921832884097035 [2024-11-13 16:31:36,892 INFO L175 Difference]: Start difference. First operand has 416 places, 393 transitions, 1040 flow. Second operand 6 states and 1986 transitions. [2024-11-13 16:31:36,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 471 transitions, 1470 flow [2024-11-13 16:31:36,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 471 transitions, 1464 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 16:31:36,903 INFO L231 Difference]: Finished difference. Result has 425 places, 462 transitions, 1496 flow [2024-11-13 16:31:36,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1496, PETRI_PLACES=425, PETRI_TRANSITIONS=462} [2024-11-13 16:31:36,904 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 57 predicate places. [2024-11-13 16:31:36,904 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 462 transitions, 1496 flow [2024-11-13 16:31:36,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 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 16:31:36,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:36,905 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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] [2024-11-13 16:31:36,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 16:31:37,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 16:31:37,106 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:37,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:37,107 INFO L85 PathProgramCache]: Analyzing trace with hash 137198632, now seen corresponding path program 1 times [2024-11-13 16:31:37,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:37,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699806783] [2024-11-13 16:31:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:37,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:37,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:37,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699806783] [2024-11-13 16:31:37,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699806783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:37,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013588831] [2024-11-13 16:31:37,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:37,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:37,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:37,963 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:37,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:31:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:38,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:31:38,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:39,087 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:39,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:39,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013588831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:39,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:39,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-13 16:31:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875962397] [2024-11-13 16:31:39,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:39,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 16:31:39,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:39,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 16:31:39,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:31:39,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 371 [2024-11-13 16:31:39,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 462 transitions, 1496 flow. Second operand has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 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 16:31:39,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:39,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 371 [2024-11-13 16:31:39,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:40,737 INFO L124 PetriNetUnfolderBase]: 136/2111 cut-off events. [2024-11-13 16:31:40,737 INFO L125 PetriNetUnfolderBase]: For 309/316 co-relation queries the response was YES. [2024-11-13 16:31:40,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2958 conditions, 2111 events. 136/2111 cut-off events. For 309/316 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7477 event pairs, 23 based on Foata normal form. 4/2029 useless extension candidates. Maximal degree in co-relation 2671. Up to 207 conditions per place. [2024-11-13 16:31:40,746 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 19 selfloop transitions, 21 changer transitions 0/480 dead transitions. [2024-11-13 16:31:40,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 480 transitions, 1664 flow [2024-11-13 16:31:40,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 16:31:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 16:31:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7456 transitions. [2024-11-13 16:31:40,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9570016685919651 [2024-11-13 16:31:40,752 INFO L175 Difference]: Start difference. First operand has 425 places, 462 transitions, 1496 flow. Second operand 21 states and 7456 transitions. [2024-11-13 16:31:40,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 480 transitions, 1664 flow [2024-11-13 16:31:40,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 480 transitions, 1664 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:31:40,763 INFO L231 Difference]: Finished difference. Result has 450 places, 475 transitions, 1626 flow [2024-11-13 16:31:40,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1496, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1626, PETRI_PLACES=450, PETRI_TRANSITIONS=475} [2024-11-13 16:31:40,764 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 82 predicate places. [2024-11-13 16:31:40,765 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 475 transitions, 1626 flow [2024-11-13 16:31:40,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 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 16:31:40,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:40,767 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:40,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 16:31:40,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:40,968 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:40,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1878556952, now seen corresponding path program 2 times [2024-11-13 16:31:40,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187119418] [2024-11-13 16:31:40,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187119418] [2024-11-13 16:31:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187119418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383565564] [2024-11-13 16:31:43,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:31:43,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:43,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:43,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:43,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 16:31:43,693 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:31:43,693 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:31:43,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:31:43,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:43,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 16:31:43,808 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 23 treesize of output 22 [2024-11-13 16:31:43,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:43,841 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 32 treesize of output 34 [2024-11-13 16:31:43,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:31:43,888 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 41 treesize of output 46 [2024-11-13 16:31:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked. [2024-11-13 16:31:43,940 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:31:43,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383565564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:43,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:31:43,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 16:31:43,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685698054] [2024-11-13 16:31:43,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:43,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:43,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:43,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:43,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 16:31:44,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 371 [2024-11-13 16:31:44,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 475 transitions, 1626 flow. Second operand has 6 states, 6 states have (on average 314.1666666666667) internal successors, (1885), 6 states have internal predecessors, (1885), 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 16:31:44,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:44,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 371 [2024-11-13 16:31:44,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:45,918 INFO L124 PetriNetUnfolderBase]: 501/3180 cut-off events. [2024-11-13 16:31:45,918 INFO L125 PetriNetUnfolderBase]: For 973/1064 co-relation queries the response was YES. [2024-11-13 16:31:45,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5596 conditions, 3180 events. 501/3180 cut-off events. For 973/1064 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16091 event pairs, 93 based on Foata normal form. 16/3031 useless extension candidates. Maximal degree in co-relation 5304. Up to 981 conditions per place. [2024-11-13 16:31:45,933 INFO L140 encePairwiseOnDemand]: 348/371 looper letters, 131 selfloop transitions, 130 changer transitions 0/612 dead transitions. [2024-11-13 16:31:45,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 612 transitions, 2798 flow [2024-11-13 16:31:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:45,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1985 transitions. [2024-11-13 16:31:45,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8917340521114105 [2024-11-13 16:31:45,936 INFO L175 Difference]: Start difference. First operand has 450 places, 475 transitions, 1626 flow. Second operand 6 states and 1985 transitions. [2024-11-13 16:31:45,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 612 transitions, 2798 flow [2024-11-13 16:31:45,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 612 transitions, 2774 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 16:31:45,951 INFO L231 Difference]: Finished difference. Result has 454 places, 604 transitions, 2830 flow [2024-11-13 16:31:45,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1602, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2830, PETRI_PLACES=454, PETRI_TRANSITIONS=604} [2024-11-13 16:31:45,953 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 86 predicate places. [2024-11-13 16:31:45,953 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 604 transitions, 2830 flow [2024-11-13 16:31:45,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.1666666666667) internal successors, (1885), 6 states have internal predecessors, (1885), 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 16:31:45,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:45,954 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:45,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 16:31:46,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 16:31:46,155 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:46,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash 159349533, now seen corresponding path program 1 times [2024-11-13 16:31:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:46,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101964815] [2024-11-13 16:31:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:46,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:47,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:47,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101964815] [2024-11-13 16:31:47,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101964815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:47,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983239768] [2024-11-13 16:31:47,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:47,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:47,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:47,855 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:47,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 16:31:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:48,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:31:48,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:49,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-13 16:31:50,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983239768] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:50,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:50,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-13 16:31:50,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343275244] [2024-11-13 16:31:50,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:50,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 16:31:50,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:50,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 16:31:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:31:51,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 371 [2024-11-13 16:31:51,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 604 transitions, 2830 flow. Second operand has 23 states, 23 states have (on average 355.0869565217391) internal successors, (8167), 23 states have internal predecessors, (8167), 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 16:31:51,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:51,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 371 [2024-11-13 16:31:51,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:52,565 INFO L124 PetriNetUnfolderBase]: 376/3171 cut-off events. [2024-11-13 16:31:52,565 INFO L125 PetriNetUnfolderBase]: For 1301/1343 co-relation queries the response was YES. [2024-11-13 16:31:52,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5471 conditions, 3171 events. 376/3171 cut-off events. For 1301/1343 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13306 event pairs, 39 based on Foata normal form. 7/3070 useless extension candidates. Maximal degree in co-relation 5174. Up to 468 conditions per place. [2024-11-13 16:31:52,583 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 22 selfloop transitions, 30 changer transitions 0/621 dead transitions. [2024-11-13 16:31:52,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 621 transitions, 3056 flow [2024-11-13 16:31:52,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 16:31:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 16:31:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 10644 transitions. [2024-11-13 16:31:52,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9563342318059299 [2024-11-13 16:31:52,593 INFO L175 Difference]: Start difference. First operand has 454 places, 604 transitions, 2830 flow. Second operand 30 states and 10644 transitions. [2024-11-13 16:31:52,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 621 transitions, 3056 flow [2024-11-13 16:31:52,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 621 transitions, 3056 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:31:52,618 INFO L231 Difference]: Finished difference. Result has 487 places, 614 transitions, 2982 flow [2024-11-13 16:31:52,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=2830, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2982, PETRI_PLACES=487, PETRI_TRANSITIONS=614} [2024-11-13 16:31:52,619 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 119 predicate places. [2024-11-13 16:31:52,619 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 614 transitions, 2982 flow [2024-11-13 16:31:52,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 355.0869565217391) internal successors, (8167), 23 states have internal predecessors, (8167), 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 16:31:52,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:52,622 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:52,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 16:31:52,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 16:31:52,823 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:52,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1797355952, now seen corresponding path program 2 times [2024-11-13 16:31:52,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:52,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212245489] [2024-11-13 16:31:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:52,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2024-11-13 16:31:56,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212245489] [2024-11-13 16:31:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212245489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:56,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:56,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:31:56,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83560669] [2024-11-13 16:31:56,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:56,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:31:56,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:56,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:31:56,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:31:56,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 371 [2024-11-13 16:31:56,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 614 transitions, 2982 flow. Second operand has 6 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 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 16:31:56,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:31:56,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 371 [2024-11-13 16:31:56,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:31:58,545 INFO L124 PetriNetUnfolderBase]: 777/4261 cut-off events. [2024-11-13 16:31:58,546 INFO L125 PetriNetUnfolderBase]: For 3409/3630 co-relation queries the response was YES. [2024-11-13 16:31:58,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8943 conditions, 4261 events. 777/4261 cut-off events. For 3409/3630 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22378 event pairs, 74 based on Foata normal form. 76/4162 useless extension candidates. Maximal degree in co-relation 8642. Up to 1323 conditions per place. [2024-11-13 16:31:58,566 INFO L140 encePairwiseOnDemand]: 348/371 looper letters, 251 selfloop transitions, 131 changer transitions 5/752 dead transitions. [2024-11-13 16:31:58,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 752 transitions, 4656 flow [2024-11-13 16:31:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:31:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:31:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1986 transitions. [2024-11-13 16:31:58,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8921832884097035 [2024-11-13 16:31:58,569 INFO L175 Difference]: Start difference. First operand has 487 places, 614 transitions, 2982 flow. Second operand 6 states and 1986 transitions. [2024-11-13 16:31:58,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 752 transitions, 4656 flow [2024-11-13 16:31:58,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 752 transitions, 4610 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-13 16:31:58,594 INFO L231 Difference]: Finished difference. Result has 479 places, 742 transitions, 4416 flow [2024-11-13 16:31:58,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=2936, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4416, PETRI_PLACES=479, PETRI_TRANSITIONS=742} [2024-11-13 16:31:58,595 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 111 predicate places. [2024-11-13 16:31:58,596 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 742 transitions, 4416 flow [2024-11-13 16:31:58,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 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 16:31:58,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:31:58,597 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:31:58,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 16:31:58,597 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:31:58,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 70380438, now seen corresponding path program 1 times [2024-11-13 16:31:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:58,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465783975] [2024-11-13 16:31:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:58,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2024-11-13 16:32:02,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:02,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465783975] [2024-11-13 16:32:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465783975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:02,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:02,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:32:02,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352943448] [2024-11-13 16:32:02,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:02,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:32:02,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:02,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:32:02,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:32:02,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 371 [2024-11-13 16:32:02,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 742 transitions, 4416 flow. Second operand has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 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 16:32:02,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:32:02,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 371 [2024-11-13 16:32:02,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:32:05,324 INFO L124 PetriNetUnfolderBase]: 1309/5635 cut-off events. [2024-11-13 16:32:05,324 INFO L125 PetriNetUnfolderBase]: For 5000/5057 co-relation queries the response was YES. [2024-11-13 16:32:05,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13651 conditions, 5635 events. 1309/5635 cut-off events. For 5000/5057 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33840 event pairs, 369 based on Foata normal form. 11/5401 useless extension candidates. Maximal degree in co-relation 13346. Up to 2549 conditions per place. [2024-11-13 16:32:05,368 INFO L140 encePairwiseOnDemand]: 352/371 looper letters, 316 selfloop transitions, 84 changer transitions 0/821 dead transitions. [2024-11-13 16:32:05,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 821 transitions, 5614 flow [2024-11-13 16:32:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:32:05,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:32:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1864 transitions. [2024-11-13 16:32:05,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8373764600179695 [2024-11-13 16:32:05,371 INFO L175 Difference]: Start difference. First operand has 479 places, 742 transitions, 4416 flow. Second operand 6 states and 1864 transitions. [2024-11-13 16:32:05,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 821 transitions, 5614 flow [2024-11-13 16:32:05,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 821 transitions, 5360 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-11-13 16:32:05,411 INFO L231 Difference]: Finished difference. Result has 488 places, 813 transitions, 4952 flow [2024-11-13 16:32:05,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=4168, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4952, PETRI_PLACES=488, PETRI_TRANSITIONS=813} [2024-11-13 16:32:05,413 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 120 predicate places. [2024-11-13 16:32:05,413 INFO L471 AbstractCegarLoop]: Abstraction has has 488 places, 813 transitions, 4952 flow [2024-11-13 16:32:05,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 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 16:32:05,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:32:05,414 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:05,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:32:05,414 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:32:05,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:05,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1741066107, now seen corresponding path program 1 times [2024-11-13 16:32:05,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:05,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067534144] [2024-11-13 16:32:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:05,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 409 proven. 2480 refuted. 0 times theorem prover too weak. 2081 trivial. 0 not checked. [2024-11-13 16:32:30,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:30,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067534144] [2024-11-13 16:32:30,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067534144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:32:30,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399986880] [2024-11-13 16:32:30,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:30,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:32:30,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:32:30,544 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:32:30,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 16:32:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:32,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 4690 conjuncts, 163 conjuncts are in the unsatisfiable core [2024-11-13 16:32:32,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:32:33,266 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 16:32:33,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-13 16:32:33,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:32:34,022 INFO L349 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2024-11-13 16:32:34,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2024-11-13 16:32:34,207 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 34 treesize of output 25 [2024-11-13 16:32:34,405 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 34 treesize of output 25 [2024-11-13 16:32:34,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-13 16:32:36,094 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-11-13 16:32:36,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-11-13 16:32:36,841 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-11-13 16:32:36,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-11-13 16:32:38,309 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-11-13 16:32:38,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2024-11-13 16:32:39,865 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-13 16:32:39,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-13 16:32:42,341 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-11-13 16:32:42,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-11-13 16:32:43,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 16:32:44,846 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-11-13 16:32:44,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2024-11-13 16:32:45,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2024-11-13 16:32:45,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2024-11-13 16:32:47,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 20 [2024-11-13 16:32:50,425 INFO L349 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2024-11-13 16:32:50,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2024-11-13 16:32:56,803 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-11-13 16:32:56,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 76 [2024-11-13 16:33:08,569 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2024-11-13 16:33:08,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 76 [2024-11-13 16:33:12,248 INFO L349 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2024-11-13 16:33:12,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2024-11-13 16:33:26,135 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-11-13 16:33:26,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 49 treesize of output 88 [2024-11-13 16:33:44,295 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2024-11-13 16:33:44,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 49 treesize of output 88 [2024-11-13 16:33:58,780 INFO L349 Elim1Store]: treesize reduction 126, result has 33.7 percent of original size [2024-11-13 16:33:58,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 47 treesize of output 93 [2024-11-13 16:34:46,941 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-13 16:34:46,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-13 16:35:29,762 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-13 16:35:29,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-13 16:36:03,435 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-13 16:36:03,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-13 16:36:52,940 INFO L349 Elim1Store]: treesize reduction 160, result has 31.3 percent of original size [2024-11-13 16:36:52,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 100 [2024-11-13 16:37:43,330 INFO L349 Elim1Store]: treesize reduction 112, result has 26.8 percent of original size [2024-11-13 16:37:43,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 70 [2024-11-13 16:38:44,249 INFO L349 Elim1Store]: treesize reduction 100, result has 27.0 percent of original size [2024-11-13 16:38:44,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 17 case distinctions, treesize of input 51 treesize of output 67 [2024-11-13 16:38:44,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 16:38:44,495 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 25 treesize of output 24 [2024-11-13 16:38:44,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:38:44,582 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 36 treesize of output 38 [2024-11-13 16:38:44,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:38:44,682 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 47 treesize of output 52 [2024-11-13 16:38:44,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:38:44,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 55 [2024-11-13 16:38:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 3026 proven. 1262 refuted. 128 times theorem prover too weak. 554 trivial. 0 not checked. [2024-11-13 16:38:44,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:39:02,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 4220 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2024-11-13 16:39:02,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399986880] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:39:02,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:39:02,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [32, 45] total 87 [2024-11-13 16:39:02,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147191240] [2024-11-13 16:39:02,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:39:02,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 16:39:02,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:39:02,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 16:39:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1149, Invalid=6497, Unknown=10, NotChecked=0, Total=7656 [2024-11-13 16:39:21,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 371 [2024-11-13 16:39:21,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 813 transitions, 4952 flow. Second operand has 18 states, 18 states have (on average 311.22222222222223) internal successors, (5602), 18 states have internal predecessors, (5602), 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 16:39:21,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:39:21,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 371 [2024-11-13 16:39:21,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:39:32,546 INFO L124 PetriNetUnfolderBase]: 1018/4929 cut-off events. [2024-11-13 16:39:32,546 INFO L125 PetriNetUnfolderBase]: For 6290/6524 co-relation queries the response was YES. [2024-11-13 16:39:32,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12866 conditions, 4929 events. 1018/4929 cut-off events. For 6290/6524 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 27996 event pairs, 77 based on Foata normal form. 32/4812 useless extension candidates. Maximal degree in co-relation 12553. Up to 891 conditions per place. [2024-11-13 16:39:32,569 INFO L140 encePairwiseOnDemand]: 348/371 looper letters, 483 selfloop transitions, 148 changer transitions 1/1029 dead transitions. [2024-11-13 16:39:32,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 1029 transitions, 7332 flow [2024-11-13 16:39:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 16:39:32,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-13 16:39:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 7449 transitions. [2024-11-13 16:39:32,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8365902964959568 [2024-11-13 16:39:32,576 INFO L175 Difference]: Start difference. First operand has 488 places, 813 transitions, 4952 flow. Second operand 24 states and 7449 transitions. [2024-11-13 16:39:32,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 1029 transitions, 7332 flow [2024-11-13 16:39:32,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 1029 transitions, 7260 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-11-13 16:39:32,625 INFO L231 Difference]: Finished difference. Result has 522 places, 877 transitions, 5922 flow [2024-11-13 16:39:32,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=4898, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5922, PETRI_PLACES=522, PETRI_TRANSITIONS=877} [2024-11-13 16:39:32,626 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 154 predicate places. [2024-11-13 16:39:32,626 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 877 transitions, 5922 flow [2024-11-13 16:39:32,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 311.22222222222223) internal successors, (5602), 18 states have internal predecessors, (5602), 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 16:39:32,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:39:32,629 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:32,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 16:39:32,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:39:32,829 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:39:32,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:39:32,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2119154901, now seen corresponding path program 2 times [2024-11-13 16:39:32,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:39:32,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607061023] [2024-11-13 16:39:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:39:32,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:40:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 316 proven. 1865 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2024-11-13 16:40:06,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:40:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607061023] [2024-11-13 16:40:06,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607061023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:40:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190708573] [2024-11-13 16:40:06,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:40:06,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:40:06,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:40:06,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:40:06,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 16:40:08,459 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 16:40:08,459 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:40:08,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 4690 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-13 16:40:08,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:40:09,045 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 16:40:09,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-13 16:40:09,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:40:09,804 INFO L349 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2024-11-13 16:40:09,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-13 16:40:09,982 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 34 treesize of output 25 [2024-11-13 16:40:10,122 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 34 treesize of output 25 [2024-11-13 16:40:10,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-13 16:40:10,917 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:10,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:11,317 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-13 16:40:11,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-13 16:40:12,096 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-13 16:40:12,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-13 16:40:12,676 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:12,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:13,399 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:13,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:13,771 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:13,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:14,492 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-13 16:40:14,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-13 16:40:15,251 INFO L349 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2024-11-13 16:40:15,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2024-11-13 16:40:16,130 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:16,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:16,556 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:16,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:17,401 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:17,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:17,879 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:17,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:18,768 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:18,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:19,260 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:19,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:20,052 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:20,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:20,415 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:20,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:21,149 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:21,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:21,544 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-13 16:40:21,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-13 16:40:22,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 16:40:22,718 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 25 treesize of output 24 [2024-11-13 16:40:22,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:40:22,821 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 36 treesize of output 38 [2024-11-13 16:40:22,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:40:22,992 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 47 treesize of output 52 [2024-11-13 16:40:23,148 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-13 16:40:23,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-13 16:40:23,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2024-11-13 16:40:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 69 proven. 782 refuted. 0 times theorem prover too weak. 4119 trivial. 0 not checked. [2024-11-13 16:40:23,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:40:23,427 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_13666 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13666) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)) (forall ((v_ArrVal_13666 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13666) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_13666 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13666) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)) (forall ((v_ArrVal_13666 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13666) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)))) is different from false [2024-11-13 16:40:24,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:40:24,449 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 67 [2024-11-13 16:40:24,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:40:24,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 39 [2024-11-13 16:40:24,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-11-13 16:40:24,469 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-13 16:40:24,470 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-13 16:40:24,476 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-13 16:40:24,477 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-13 16:40:24,483 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-13 16:40:24,483 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 1 [2024-11-13 16:41:48,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 4915 trivial. 0 not checked. [2024-11-13 16:41:48,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190708573] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:41:48,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:41:48,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [35, 25] total 67 [2024-11-13 16:41:48,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830998695] [2024-11-13 16:41:48,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:41:48,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:41:48,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:41:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:41:48,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=3846, Unknown=24, NotChecked=130, Total=4556 [2024-11-13 16:41:49,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 371 [2024-11-13 16:41:49,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 877 transitions, 5922 flow. Second operand has 12 states, 12 states have (on average 228.83333333333334) internal successors, (2746), 12 states have internal predecessors, (2746), 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 16:41:49,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:41:49,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 371 [2024-11-13 16:41:49,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:42:26,738 INFO L124 PetriNetUnfolderBase]: 2548/8216 cut-off events. [2024-11-13 16:42:26,739 INFO L125 PetriNetUnfolderBase]: For 15637/15704 co-relation queries the response was YES. [2024-11-13 16:42:26,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25716 conditions, 8216 events. 2548/8216 cut-off events. For 15637/15704 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 54242 event pairs, 462 based on Foata normal form. 55/7962 useless extension candidates. Maximal degree in co-relation 25377. Up to 3912 conditions per place. [2024-11-13 16:42:26,817 INFO L140 encePairwiseOnDemand]: 303/371 looper letters, 524 selfloop transitions, 376 changer transitions 11/1192 dead transitions. [2024-11-13 16:42:26,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 1192 transitions, 9387 flow [2024-11-13 16:42:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:42:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 16:42:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3799 transitions. [2024-11-13 16:42:26,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.682659478885894 [2024-11-13 16:42:26,823 INFO L175 Difference]: Start difference. First operand has 522 places, 877 transitions, 5922 flow. Second operand 15 states and 3799 transitions. [2024-11-13 16:42:26,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 1192 transitions, 9387 flow [2024-11-13 16:42:26,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 1192 transitions, 9335 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 16:42:26,943 INFO L231 Difference]: Finished difference. Result has 541 places, 1027 transitions, 8556 flow [2024-11-13 16:42:26,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=5898, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8556, PETRI_PLACES=541, PETRI_TRANSITIONS=1027} [2024-11-13 16:42:26,944 INFO L277 CegarLoopForPetriNet]: 368 programPoint places, 173 predicate places. [2024-11-13 16:42:26,944 INFO L471 AbstractCegarLoop]: Abstraction has has 541 places, 1027 transitions, 8556 flow [2024-11-13 16:42:26,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 228.83333333333334) internal successors, (2746), 12 states have internal predecessors, (2746), 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 16:42:26,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:42:26,946 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:26,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 16:42:27,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:42:27,146 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-13 16:42:27,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:42:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash -962904335, now seen corresponding path program 3 times [2024-11-13 16:42:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:42:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840237260] [2024-11-13 16:42:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:42:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:42:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:43:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 1288 proven. 3330 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-13 16:43:03,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:43:03,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840237260] [2024-11-13 16:43:03,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840237260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:43:03,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923965774] [2024-11-13 16:43:03,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 16:43:03,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:43:03,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:43:03,008 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:43:03,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0409d812-bd2d-472a-b41e-6f9b7da67ca9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process