./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:22:16,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:22:16,194 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 05:22:16,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:22:16,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:22:16,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:22:16,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:22:16,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:22:16,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:22:16,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:22:16,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:22:16,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:22:16,252 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:22:16,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:22:16,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:22:16,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:22:16,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:22:16,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:22:16,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:22:16,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:22:16,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:22:16,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:22:16,255 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 05:22:16,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:22:16,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:22:16,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:22:16,256 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:22:16,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:22:16,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:22:16,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:22:16,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:22:16,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:22:16,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:22:16,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:22:16,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:22:16,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:22:16,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:22:16,259 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_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2024-11-28 05:22:16,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:22:16,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:22:16,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:22:16,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:22:16,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:22:16,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2024-11-28 05:22:19,859 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/data/ded3863ec/d31fa54d6277495d9593c4367af1d2d3/FLAG4db1b8eed [2024-11-28 05:22:20,396 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:22:20,397 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2024-11-28 05:22:20,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/data/ded3863ec/d31fa54d6277495d9593c4367af1d2d3/FLAG4db1b8eed [2024-11-28 05:22:20,464 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/data/ded3863ec/d31fa54d6277495d9593c4367af1d2d3 [2024-11-28 05:22:20,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:22:20,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:22:20,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:22:20,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:22:20,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:22:20,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:22:20" (1/1) ... [2024-11-28 05:22:20,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b22dda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:20, skipping insertion in model container [2024-11-28 05:22:20,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:22:20" (1/1) ... [2024-11-28 05:22:20,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:22:21,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:22:21,455 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:22:21,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:22:21,661 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:22:21,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21 WrapperNode [2024-11-28 05:22:21,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:22:21,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:22:21,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:22:21,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:22:21,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,747 INFO L138 Inliner]: procedures = 368, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 221 [2024-11-28 05:22:21,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:22:21,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:22:21,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:22:21,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:22:21,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,798 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:22:21,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:22:21,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:22:21,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:22:21,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (1/1) ... [2024-11-28 05:22:21,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:22:21,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:21,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:22:21,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:22:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 05:22:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 05:22:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 05:22:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 05:22:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 05:22:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:22:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:22:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 05:22:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 05:22:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 05:22:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 05:22:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:22:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:22:21,893 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:22:22,051 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:22:22,054 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:22:22,811 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:22:22,813 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:22:22,903 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:22:22,903 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:22:22,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:22 BoogieIcfgContainer [2024-11-28 05:22:22,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:22:22,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:22:22,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:22:22,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:22:22,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:22:20" (1/3) ... [2024-11-28 05:22:22,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1581b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:22:22, skipping insertion in model container [2024-11-28 05:22:22,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:22:21" (2/3) ... [2024-11-28 05:22:22,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1581b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:22:22, skipping insertion in model container [2024-11-28 05:22:22,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:22:22" (3/3) ... [2024-11-28 05:22:22,917 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2024-11-28 05:22:22,939 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:22:22,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_02-list_nr.i that has 2 procedures, 250 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2024-11-28 05:22:22,945 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:22:23,123 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 05:22:23,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 249 transitions, 502 flow [2024-11-28 05:22:23,348 INFO L124 PetriNetUnfolderBase]: 0/248 cut-off events. [2024-11-28 05:22:23,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:22:23,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 248 events. 0/248 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-28 05:22:23,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 249 transitions, 502 flow [2024-11-28 05:22:23,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 248 transitions, 499 flow [2024-11-28 05:22:23,387 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:22:23,412 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;@4e7cea48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:22:23,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-28 05:22:23,450 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:22:23,450 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2024-11-28 05:22:23,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:22:23,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:23,452 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:23,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:23,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1044138680, now seen corresponding path program 1 times [2024-11-28 05:22:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:23,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297933430] [2024-11-28 05:22:23,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:23,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:25,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:25,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297933430] [2024-11-28 05:22:25,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297933430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:25,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:25,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:22:25,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042516750] [2024-11-28 05:22:25,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:25,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:22:25,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:25,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:22:25,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:22:26,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 249 [2024-11-28 05:22:26,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 248 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:26,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:26,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 249 [2024-11-28 05:22:26,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:26,886 INFO L124 PetriNetUnfolderBase]: 220/1072 cut-off events. [2024-11-28 05:22:26,886 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:22:26,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 1072 events. 220/1072 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5354 event pairs, 220 based on Foata normal form. 0/967 useless extension candidates. Maximal degree in co-relation 1398. Up to 488 conditions per place. [2024-11-28 05:22:26,907 INFO L140 encePairwiseOnDemand]: 237/249 looper letters, 47 selfloop transitions, 10 changer transitions 0/246 dead transitions. [2024-11-28 05:22:26,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 246 transitions, 609 flow [2024-11-28 05:22:26,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:22:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:22:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2024-11-28 05:22:26,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8025435073627845 [2024-11-28 05:22:26,942 INFO L175 Difference]: Start difference. First operand has 252 places, 248 transitions, 499 flow. Second operand 6 states and 1199 transitions. [2024-11-28 05:22:26,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 246 transitions, 609 flow [2024-11-28 05:22:26,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 246 transitions, 608 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:22:26,964 INFO L231 Difference]: Finished difference. Result has 254 places, 246 transitions, 514 flow [2024-11-28 05:22:26,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=254, PETRI_TRANSITIONS=246} [2024-11-28 05:22:26,973 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 2 predicate places. [2024-11-28 05:22:26,973 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 246 transitions, 514 flow [2024-11-28 05:22:26,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:26,977 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:26,977 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:26,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:22:26,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:26,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:26,980 INFO L85 PathProgramCache]: Analyzing trace with hash -956173680, now seen corresponding path program 1 times [2024-11-28 05:22:26,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:26,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362468946] [2024-11-28 05:22:26,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:26,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:27,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:27,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362468946] [2024-11-28 05:22:27,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362468946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:27,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:27,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:22:27,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94907137] [2024-11-28 05:22:27,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:22:27,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:27,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:22:27,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:22:28,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 249 [2024-11-28 05:22:28,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 246 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:28,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:28,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 249 [2024-11-28 05:22:28,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:28,651 INFO L124 PetriNetUnfolderBase]: 220/1070 cut-off events. [2024-11-28 05:22:28,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:22:28,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 1070 events. 220/1070 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5357 event pairs, 220 based on Foata normal form. 0/967 useless extension candidates. Maximal degree in co-relation 1439. Up to 488 conditions per place. [2024-11-28 05:22:28,663 INFO L140 encePairwiseOnDemand]: 237/249 looper letters, 47 selfloop transitions, 10 changer transitions 0/244 dead transitions. [2024-11-28 05:22:28,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 244 transitions, 624 flow [2024-11-28 05:22:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:22:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:22:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2024-11-28 05:22:28,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8025435073627845 [2024-11-28 05:22:28,671 INFO L175 Difference]: Start difference. First operand has 254 places, 246 transitions, 514 flow. Second operand 6 states and 1199 transitions. [2024-11-28 05:22:28,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 244 transitions, 624 flow [2024-11-28 05:22:28,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 244 transitions, 604 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 05:22:28,685 INFO L231 Difference]: Finished difference. Result has 252 places, 244 transitions, 510 flow [2024-11-28 05:22:28,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=510, PETRI_PLACES=252, PETRI_TRANSITIONS=244} [2024-11-28 05:22:28,686 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 0 predicate places. [2024-11-28 05:22:28,686 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 244 transitions, 510 flow [2024-11-28 05:22:28,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:28,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:28,690 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:28,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:22:28,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:28,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash -130714399, now seen corresponding path program 1 times [2024-11-28 05:22:28,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:28,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879196634] [2024-11-28 05:22:28,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:28,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879196634] [2024-11-28 05:22:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879196634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:28,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:28,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:22:28,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539149905] [2024-11-28 05:22:28,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:28,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:22:28,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:28,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:28,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:28,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 249 [2024-11-28 05:22:28,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 244 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:28,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:28,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 249 [2024-11-28 05:22:28,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:29,039 INFO L124 PetriNetUnfolderBase]: 16/379 cut-off events. [2024-11-28 05:22:29,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:22:29,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 379 events. 16/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 756 event pairs, 16 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 298. Up to 47 conditions per place. [2024-11-28 05:22:29,042 INFO L140 encePairwiseOnDemand]: 246/249 looper letters, 14 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2024-11-28 05:22:29,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 243 transitions, 540 flow [2024-11-28 05:22:29,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:22:29,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2024-11-28 05:22:29,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9544846050870147 [2024-11-28 05:22:29,050 INFO L175 Difference]: Start difference. First operand has 252 places, 244 transitions, 510 flow. Second operand 3 states and 713 transitions. [2024-11-28 05:22:29,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 243 transitions, 540 flow [2024-11-28 05:22:29,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 243 transitions, 520 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 05:22:29,059 INFO L231 Difference]: Finished difference. Result has 248 places, 243 transitions, 492 flow [2024-11-28 05:22:29,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=248, PETRI_TRANSITIONS=243} [2024-11-28 05:22:29,061 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -4 predicate places. [2024-11-28 05:22:29,061 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 243 transitions, 492 flow [2024-11-28 05:22:29,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:29,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:29,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:29,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:22:29,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:29,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:29,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1165486800, now seen corresponding path program 1 times [2024-11-28 05:22:29,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:29,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383319234] [2024-11-28 05:22:29,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:29,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:29,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:29,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383319234] [2024-11-28 05:22:29,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383319234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:29,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:29,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:22:29,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174249114] [2024-11-28 05:22:29,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:29,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:22:29,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:29,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:29,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:29,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 249 [2024-11-28 05:22:29,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 243 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:29,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:29,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 249 [2024-11-28 05:22:29,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:29,369 INFO L124 PetriNetUnfolderBase]: 24/456 cut-off events. [2024-11-28 05:22:29,369 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:22:29,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 456 events. 24/456 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1210 event pairs, 24 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 419. Up to 63 conditions per place. [2024-11-28 05:22:29,373 INFO L140 encePairwiseOnDemand]: 243/249 looper letters, 15 selfloop transitions, 1 changer transitions 0/238 dead transitions. [2024-11-28 05:22:29,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 238 transitions, 514 flow [2024-11-28 05:22:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:22:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2024-11-28 05:22:29,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9437751004016064 [2024-11-28 05:22:29,377 INFO L175 Difference]: Start difference. First operand has 248 places, 243 transitions, 492 flow. Second operand 3 states and 705 transitions. [2024-11-28 05:22:29,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 238 transitions, 514 flow [2024-11-28 05:22:29,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 238 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:22:29,384 INFO L231 Difference]: Finished difference. Result has 243 places, 238 transitions, 480 flow [2024-11-28 05:22:29,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=243, PETRI_TRANSITIONS=238} [2024-11-28 05:22:29,386 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -9 predicate places. [2024-11-28 05:22:29,386 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 238 transitions, 480 flow [2024-11-28 05:22:29,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:29,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:29,388 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:29,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:22:29,388 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:29,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:29,390 INFO L85 PathProgramCache]: Analyzing trace with hash -264416534, now seen corresponding path program 1 times [2024-11-28 05:22:29,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:29,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228966946] [2024-11-28 05:22:29,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:29,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:30,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:30,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228966946] [2024-11-28 05:22:30,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228966946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:30,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:30,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:22:30,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769546954] [2024-11-28 05:22:30,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:30,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:22:30,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:30,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:22:30,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:22:30,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 249 [2024-11-28 05:22:30,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 238 transitions, 480 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:30,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:30,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 249 [2024-11-28 05:22:30,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:31,422 INFO L124 PetriNetUnfolderBase]: 288/1209 cut-off events. [2024-11-28 05:22:31,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:22:31,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 1209 events. 288/1209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6307 event pairs, 288 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1736. Up to 635 conditions per place. [2024-11-28 05:22:31,431 INFO L140 encePairwiseOnDemand]: 243/249 looper letters, 58 selfloop transitions, 5 changer transitions 0/237 dead transitions. [2024-11-28 05:22:31,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 237 transitions, 604 flow [2024-11-28 05:22:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:22:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:22:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1174 transitions. [2024-11-28 05:22:31,436 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.785809906291834 [2024-11-28 05:22:31,436 INFO L175 Difference]: Start difference. First operand has 243 places, 238 transitions, 480 flow. Second operand 6 states and 1174 transitions. [2024-11-28 05:22:31,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 237 transitions, 604 flow [2024-11-28 05:22:31,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 237 transitions, 603 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:22:31,443 INFO L231 Difference]: Finished difference. Result has 246 places, 237 transitions, 487 flow [2024-11-28 05:22:31,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=246, PETRI_TRANSITIONS=237} [2024-11-28 05:22:31,445 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -6 predicate places. [2024-11-28 05:22:31,445 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 237 transitions, 487 flow [2024-11-28 05:22:31,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:31,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:31,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:31,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:22:31,447 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:31,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1517100340, now seen corresponding path program 1 times [2024-11-28 05:22:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:31,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23877486] [2024-11-28 05:22:31,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:32,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:32,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23877486] [2024-11-28 05:22:32,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23877486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:32,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:32,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:22:32,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096802567] [2024-11-28 05:22:32,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:32,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:22:32,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:32,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:22:32,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:22:32,951 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 249 [2024-11-28 05:22:32,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 237 transitions, 487 flow. Second operand has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:32,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:32,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 249 [2024-11-28 05:22:32,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:33,624 INFO L124 PetriNetUnfolderBase]: 316/1535 cut-off events. [2024-11-28 05:22:33,625 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 05:22:33,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 1535 events. 316/1535 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 9256 event pairs, 36 based on Foata normal form. 0/1445 useless extension candidates. Maximal degree in co-relation 2154. Up to 380 conditions per place. [2024-11-28 05:22:33,637 INFO L140 encePairwiseOnDemand]: 221/249 looper letters, 99 selfloop transitions, 70 changer transitions 0/349 dead transitions. [2024-11-28 05:22:33,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 349 transitions, 1049 flow [2024-11-28 05:22:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:22:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:22:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2024-11-28 05:22:33,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8855421686746988 [2024-11-28 05:22:33,645 INFO L175 Difference]: Start difference. First operand has 246 places, 237 transitions, 487 flow. Second operand 6 states and 1323 transitions. [2024-11-28 05:22:33,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 349 transitions, 1049 flow [2024-11-28 05:22:33,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 349 transitions, 1039 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 05:22:33,659 INFO L231 Difference]: Finished difference. Result has 250 places, 307 transitions, 955 flow [2024-11-28 05:22:33,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=955, PETRI_PLACES=250, PETRI_TRANSITIONS=307} [2024-11-28 05:22:33,662 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -2 predicate places. [2024-11-28 05:22:33,663 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 307 transitions, 955 flow [2024-11-28 05:22:33,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:33,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:33,665 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:33,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:22:33,665 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:33,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash -656122962, now seen corresponding path program 1 times [2024-11-28 05:22:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:33,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363936286] [2024-11-28 05:22:33,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:34,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363936286] [2024-11-28 05:22:34,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363936286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:34,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:34,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:22:34,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22044437] [2024-11-28 05:22:34,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:34,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:22:34,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:34,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:22:34,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:22:35,025 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 249 [2024-11-28 05:22:35,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 307 transitions, 955 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:35,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:35,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 249 [2024-11-28 05:22:35,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:35,617 INFO L124 PetriNetUnfolderBase]: 588/2306 cut-off events. [2024-11-28 05:22:35,617 INFO L125 PetriNetUnfolderBase]: For 603/609 co-relation queries the response was YES. [2024-11-28 05:22:35,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4695 conditions, 2306 events. 588/2306 cut-off events. For 603/609 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 15128 event pairs, 222 based on Foata normal form. 0/2194 useless extension candidates. Maximal degree in co-relation 4576. Up to 1082 conditions per place. [2024-11-28 05:22:35,635 INFO L140 encePairwiseOnDemand]: 234/249 looper letters, 106 selfloop transitions, 48 changer transitions 0/358 dead transitions. [2024-11-28 05:22:35,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 358 transitions, 1435 flow [2024-11-28 05:22:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:22:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:22:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1260 transitions. [2024-11-28 05:22:35,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8433734939759037 [2024-11-28 05:22:35,640 INFO L175 Difference]: Start difference. First operand has 250 places, 307 transitions, 955 flow. Second operand 6 states and 1260 transitions. [2024-11-28 05:22:35,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 358 transitions, 1435 flow [2024-11-28 05:22:35,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 358 transitions, 1435 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:22:35,653 INFO L231 Difference]: Finished difference. Result has 260 places, 350 transitions, 1343 flow [2024-11-28 05:22:35,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1343, PETRI_PLACES=260, PETRI_TRANSITIONS=350} [2024-11-28 05:22:35,655 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 8 predicate places. [2024-11-28 05:22:35,655 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 350 transitions, 1343 flow [2024-11-28 05:22:35,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:35,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:35,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:35,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:22:35,657 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:35,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1849978901, now seen corresponding path program 1 times [2024-11-28 05:22:35,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:35,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187163892] [2024-11-28 05:22:35,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:36,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187163892] [2024-11-28 05:22:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187163892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:36,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:22:36,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58492308] [2024-11-28 05:22:36,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:36,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:22:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:36,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:22:36,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:22:36,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 249 [2024-11-28 05:22:36,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 350 transitions, 1343 flow. Second operand has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:36,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:36,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 249 [2024-11-28 05:22:36,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:37,608 INFO L124 PetriNetUnfolderBase]: 743/2863 cut-off events. [2024-11-28 05:22:37,608 INFO L125 PetriNetUnfolderBase]: For 1673/1738 co-relation queries the response was YES. [2024-11-28 05:22:37,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6639 conditions, 2863 events. 743/2863 cut-off events. For 1673/1738 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 20214 event pairs, 86 based on Foata normal form. 0/2772 useless extension candidates. Maximal degree in co-relation 6513. Up to 1023 conditions per place. [2024-11-28 05:22:37,634 INFO L140 encePairwiseOnDemand]: 226/249 looper letters, 128 selfloop transitions, 136 changer transitions 4/490 dead transitions. [2024-11-28 05:22:37,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 490 transitions, 2635 flow [2024-11-28 05:22:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:22:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:22:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1318 transitions. [2024-11-28 05:22:37,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8821954484605087 [2024-11-28 05:22:37,639 INFO L175 Difference]: Start difference. First operand has 260 places, 350 transitions, 1343 flow. Second operand 6 states and 1318 transitions. [2024-11-28 05:22:37,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 490 transitions, 2635 flow [2024-11-28 05:22:37,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 490 transitions, 2617 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-28 05:22:37,664 INFO L231 Difference]: Finished difference. Result has 270 places, 481 transitions, 2691 flow [2024-11-28 05:22:37,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2691, PETRI_PLACES=270, PETRI_TRANSITIONS=481} [2024-11-28 05:22:37,665 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 18 predicate places. [2024-11-28 05:22:37,666 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 481 transitions, 2691 flow [2024-11-28 05:22:37,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:37,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:37,671 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:37,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:22:37,671 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:37,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash 642851118, now seen corresponding path program 1 times [2024-11-28 05:22:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:37,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661016760] [2024-11-28 05:22:37,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:37,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:39,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661016760] [2024-11-28 05:22:39,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661016760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:39,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:39,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:22:39,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306474237] [2024-11-28 05:22:39,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:39,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:22:39,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:39,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:22:39,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:22:40,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 249 [2024-11-28 05:22:40,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 481 transitions, 2691 flow. Second operand has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:40,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:40,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 249 [2024-11-28 05:22:40,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:43,746 INFO L124 PetriNetUnfolderBase]: 1151/4174 cut-off events. [2024-11-28 05:22:43,746 INFO L125 PetriNetUnfolderBase]: For 5352/5456 co-relation queries the response was YES. [2024-11-28 05:22:43,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11940 conditions, 4174 events. 1151/4174 cut-off events. For 5352/5456 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 32994 event pairs, 78 based on Foata normal form. 35/4115 useless extension candidates. Maximal degree in co-relation 11806. Up to 880 conditions per place. [2024-11-28 05:22:43,794 INFO L140 encePairwiseOnDemand]: 212/249 looper letters, 349 selfloop transitions, 159 changer transitions 4/705 dead transitions. [2024-11-28 05:22:43,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 705 transitions, 5131 flow [2024-11-28 05:22:43,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:22:43,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 05:22:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2777 transitions. [2024-11-28 05:22:43,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7966150315547906 [2024-11-28 05:22:43,802 INFO L175 Difference]: Start difference. First operand has 270 places, 481 transitions, 2691 flow. Second operand 14 states and 2777 transitions. [2024-11-28 05:22:43,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 705 transitions, 5131 flow [2024-11-28 05:22:43,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 705 transitions, 5059 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-11-28 05:22:43,860 INFO L231 Difference]: Finished difference. Result has 293 places, 544 transitions, 3964 flow [2024-11-28 05:22:43,861 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=2655, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3964, PETRI_PLACES=293, PETRI_TRANSITIONS=544} [2024-11-28 05:22:43,861 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 41 predicate places. [2024-11-28 05:22:43,862 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 544 transitions, 3964 flow [2024-11-28 05:22:43,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:43,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:43,865 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:43,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:22:43,865 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:43,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:43,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1158483018, now seen corresponding path program 2 times [2024-11-28 05:22:43,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:43,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835457858] [2024-11-28 05:22:43,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:22:43,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:43,930 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:22:43,932 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:22:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:44,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835457858] [2024-11-28 05:22:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835457858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:44,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:44,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:22:44,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591426984] [2024-11-28 05:22:44,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:44,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:22:44,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:44,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:22:44,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:22:46,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 249 [2024-11-28 05:22:46,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 544 transitions, 3964 flow. Second operand has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:46,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:46,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 249 [2024-11-28 05:22:46,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:49,010 INFO L124 PetriNetUnfolderBase]: 1253/4614 cut-off events. [2024-11-28 05:22:49,010 INFO L125 PetriNetUnfolderBase]: For 9610/9714 co-relation queries the response was YES. [2024-11-28 05:22:49,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14561 conditions, 4614 events. 1253/4614 cut-off events. For 9610/9714 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 37093 event pairs, 125 based on Foata normal form. 37/4535 useless extension candidates. Maximal degree in co-relation 14413. Up to 891 conditions per place. [2024-11-28 05:22:49,056 INFO L140 encePairwiseOnDemand]: 228/249 looper letters, 440 selfloop transitions, 103 changer transitions 0/736 dead transitions. [2024-11-28 05:22:49,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 736 transitions, 6508 flow [2024-11-28 05:22:49,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:22:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 05:22:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3604 transitions. [2024-11-28 05:22:49,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7617839780173324 [2024-11-28 05:22:49,066 INFO L175 Difference]: Start difference. First operand has 293 places, 544 transitions, 3964 flow. Second operand 19 states and 3604 transitions. [2024-11-28 05:22:49,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 736 transitions, 6508 flow [2024-11-28 05:22:49,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 736 transitions, 6503 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 05:22:49,126 INFO L231 Difference]: Finished difference. Result has 317 places, 599 transitions, 4779 flow [2024-11-28 05:22:49,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=3959, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4779, PETRI_PLACES=317, PETRI_TRANSITIONS=599} [2024-11-28 05:22:49,128 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 65 predicate places. [2024-11-28 05:22:49,128 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 599 transitions, 4779 flow [2024-11-28 05:22:49,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:49,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:49,129 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:49,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:22:49,129 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:49,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:49,130 INFO L85 PathProgramCache]: Analyzing trace with hash -370482976, now seen corresponding path program 3 times [2024-11-28 05:22:49,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:49,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586624703] [2024-11-28 05:22:49,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:22:49,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:49,176 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 05:22:49,176 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:22:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586624703] [2024-11-28 05:22:50,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586624703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:50,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:50,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:22:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787171603] [2024-11-28 05:22:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:50,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:22:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:50,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:22:50,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:22:51,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 249 [2024-11-28 05:22:51,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 599 transitions, 4779 flow. Second operand has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:51,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:51,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 249 [2024-11-28 05:22:51,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:22:54,539 INFO L124 PetriNetUnfolderBase]: 1790/6487 cut-off events. [2024-11-28 05:22:54,539 INFO L125 PetriNetUnfolderBase]: For 17776/17967 co-relation queries the response was YES. [2024-11-28 05:22:54,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21812 conditions, 6487 events. 1790/6487 cut-off events. For 17776/17967 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 58250 event pairs, 144 based on Foata normal form. 55/6368 useless extension candidates. Maximal degree in co-relation 21654. Up to 1298 conditions per place. [2024-11-28 05:22:54,582 INFO L140 encePairwiseOnDemand]: 216/249 looper letters, 450 selfloop transitions, 226 changer transitions 3/872 dead transitions. [2024-11-28 05:22:54,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 872 transitions, 8587 flow [2024-11-28 05:22:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:22:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 05:22:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3860 transitions. [2024-11-28 05:22:54,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7751004016064257 [2024-11-28 05:22:54,592 INFO L175 Difference]: Start difference. First operand has 317 places, 599 transitions, 4779 flow. Second operand 20 states and 3860 transitions. [2024-11-28 05:22:54,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 872 transitions, 8587 flow [2024-11-28 05:22:54,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 872 transitions, 8551 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-28 05:22:54,701 INFO L231 Difference]: Finished difference. Result has 342 places, 693 transitions, 6986 flow [2024-11-28 05:22:54,702 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=4753, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6986, PETRI_PLACES=342, PETRI_TRANSITIONS=693} [2024-11-28 05:22:54,702 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 90 predicate places. [2024-11-28 05:22:54,703 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 693 transitions, 6986 flow [2024-11-28 05:22:54,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:54,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:22:54,704 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:54,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:22:54,704 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:22:54,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash -878427960, now seen corresponding path program 4 times [2024-11-28 05:22:54,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:54,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633658377] [2024-11-28 05:22:54,706 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:22:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:54,749 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:22:54,749 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:22:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:22:55,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:55,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633658377] [2024-11-28 05:22:55,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633658377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:55,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:55,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:22:55,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263419034] [2024-11-28 05:22:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:55,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:22:55,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:55,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:22:55,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:22:57,386 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 249 [2024-11-28 05:22:57,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 693 transitions, 6986 flow. Second operand has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:22:57,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:22:57,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 249 [2024-11-28 05:22:57,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:23:00,766 INFO L124 PetriNetUnfolderBase]: 2505/8900 cut-off events. [2024-11-28 05:23:00,767 INFO L125 PetriNetUnfolderBase]: For 36019/36331 co-relation queries the response was YES. [2024-11-28 05:23:00,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32607 conditions, 8900 events. 2505/8900 cut-off events. For 36019/36331 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 87164 event pairs, 147 based on Foata normal form. 98/8761 useless extension candidates. Maximal degree in co-relation 32437. Up to 1807 conditions per place. [2024-11-28 05:23:00,838 INFO L140 encePairwiseOnDemand]: 220/249 looper letters, 510 selfloop transitions, 301 changer transitions 0/1004 dead transitions. [2024-11-28 05:23:00,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1004 transitions, 12268 flow [2024-11-28 05:23:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:23:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 05:23:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3629 transitions. [2024-11-28 05:23:00,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7670682730923695 [2024-11-28 05:23:00,845 INFO L175 Difference]: Start difference. First operand has 342 places, 693 transitions, 6986 flow. Second operand 19 states and 3629 transitions. [2024-11-28 05:23:00,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1004 transitions, 12268 flow [2024-11-28 05:23:01,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 1004 transitions, 12226 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-28 05:23:01,046 INFO L231 Difference]: Finished difference. Result has 362 places, 806 transitions, 10052 flow [2024-11-28 05:23:01,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=6944, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10052, PETRI_PLACES=362, PETRI_TRANSITIONS=806} [2024-11-28 05:23:01,048 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 110 predicate places. [2024-11-28 05:23:01,049 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 806 transitions, 10052 flow [2024-11-28 05:23:01,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 183.07692307692307) internal successors, (2380), 13 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:23:01,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:23:01,050 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:01,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:23:01,050 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:23:01,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash -857358, now seen corresponding path program 5 times [2024-11-28 05:23:01,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:01,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207275536] [2024-11-28 05:23:01,052 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:23:01,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:01,100 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:23:01,104 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:23:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:23:02,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:02,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207275536] [2024-11-28 05:23:02,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207275536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:23:02,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454256307] [2024-11-28 05:23:02,205 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:23:02,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:02,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:02,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:23:02,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:23:02,500 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:23:02,500 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:23:02,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 05:23:02,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:23:02,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:23:02,765 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:23:02,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:23:02,793 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 13 treesize of output 9 [2024-11-28 05:23:02,807 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 23 treesize of output 22 [2024-11-28 05:23:02,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:23:02,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:23:02,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:23:02,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:23:03,011 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 45 treesize of output 34 [2024-11-28 05:23:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:23:03,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:23:03,090 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= 0 (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 4)))) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 7)) 0))) is different from false [2024-11-28 05:23:03,210 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= 0 (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 4)))) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_1359) c_~A~0.base) .cse1) 0))))) is different from false [2024-11-28 05:23:03,245 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_1359) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 6)) 0))))) is different from false [2024-11-28 05:23:03,303 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 4)) 0))))) is different from false [2024-11-28 05:23:03,369 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~A~0.offset 6)) (.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (select |c_#race| c_~A~0.base) .cse2 0) .cse1 0)))) (and (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) .cse2) 0)) (forall ((v_ArrVal_1359 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_1359) c_~A~0.base) (+ c_~A~0.offset 4)) 0))))) is different from false [2024-11-28 05:23:06,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:23:06,649 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 37 treesize of output 53 [2024-11-28 05:23:06,662 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:23:06,663 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 66 treesize of output 36 [2024-11-28 05:23:06,687 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:23:06,689 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:23:06,697 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:23:06,697 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:23:06,705 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:23:06,705 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:23:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:23:06,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454256307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:23:06,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:23:06,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 20 [2024-11-28 05:23:06,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897895705] [2024-11-28 05:23:06,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:23:06,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:23:06,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:06,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:23:06,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=192, Unknown=16, NotChecked=160, Total=420 [2024-11-28 05:23:06,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 249 [2024-11-28 05:23:06,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 806 transitions, 10052 flow. Second operand has 21 states, 21 states have (on average 151.0) internal successors, (3171), 21 states have internal predecessors, (3171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:23:06,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:23:06,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 249 [2024-11-28 05:23:06,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:23:15,920 INFO L124 PetriNetUnfolderBase]: 5458/15195 cut-off events. [2024-11-28 05:23:15,920 INFO L125 PetriNetUnfolderBase]: For 71374/71680 co-relation queries the response was YES. [2024-11-28 05:23:16,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60459 conditions, 15195 events. 5458/15195 cut-off events. For 71374/71680 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 149595 event pairs, 1190 based on Foata normal form. 64/14772 useless extension candidates. Maximal degree in co-relation 60275. Up to 3864 conditions per place. [2024-11-28 05:23:16,093 INFO L140 encePairwiseOnDemand]: 216/249 looper letters, 776 selfloop transitions, 321 changer transitions 6/1244 dead transitions. [2024-11-28 05:23:16,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 1244 transitions, 16316 flow [2024-11-28 05:23:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:23:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 05:23:16,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3649 transitions. [2024-11-28 05:23:16,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6661190215407082 [2024-11-28 05:23:16,099 INFO L175 Difference]: Start difference. First operand has 362 places, 806 transitions, 10052 flow. Second operand 22 states and 3649 transitions. [2024-11-28 05:23:16,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 1244 transitions, 16316 flow [2024-11-28 05:23:16,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 1244 transitions, 16210 flow, removed 35 selfloop flow, removed 9 redundant places. [2024-11-28 05:23:16,586 INFO L231 Difference]: Finished difference. Result has 383 places, 886 transitions, 12912 flow [2024-11-28 05:23:16,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=9946, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12912, PETRI_PLACES=383, PETRI_TRANSITIONS=886} [2024-11-28 05:23:16,587 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 131 predicate places. [2024-11-28 05:23:16,587 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 886 transitions, 12912 flow [2024-11-28 05:23:16,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 151.0) internal successors, (3171), 21 states have internal predecessors, (3171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:23:16,588 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:23:16,589 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:16,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:23:16,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:16,789 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:23:16,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:16,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1075750556, now seen corresponding path program 6 times [2024-11-28 05:23:16,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:16,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727097953] [2024-11-28 05:23:16,791 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:23:16,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:16,861 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-28 05:23:16,862 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:23:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:23:18,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:18,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727097953] [2024-11-28 05:23:18,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727097953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:23:18,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933853751] [2024-11-28 05:23:18,067 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:23:18,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:18,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:18,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:23:18,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:23:19,041 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-28 05:23:19,041 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:23:19,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 05:23:19,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:23:19,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:23:19,453 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 [2024-11-28 05:23:19,513 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 23 treesize of output 22 [2024-11-28 05:23:19,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:23:19,668 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:23:19,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:23:19,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:23:20,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2024-11-28 05:23:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:23:20,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:23:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:23:23,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933853751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:23:23,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:23:23,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 34 [2024-11-28 05:23:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408803078] [2024-11-28 05:23:23,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:23:23,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 05:23:23,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:23,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 05:23:23,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1007, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:23:32,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:23:39,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:23:47,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:23:52,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:24:00,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:24:19,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:24:25,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:24:38,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:24:41,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 249 [2024-11-28 05:24:41,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 886 transitions, 12912 flow. Second operand has 35 states, 35 states have (on average 173.11428571428573) internal successors, (6059), 35 states have internal predecessors, (6059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:24:41,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:24:41,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 249 [2024-11-28 05:24:41,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:24:58,959 INFO L124 PetriNetUnfolderBase]: 4653/14769 cut-off events. [2024-11-28 05:24:58,960 INFO L125 PetriNetUnfolderBase]: For 95972/96482 co-relation queries the response was YES. [2024-11-28 05:24:59,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62254 conditions, 14769 events. 4653/14769 cut-off events. For 95972/96482 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 156265 event pairs, 590 based on Foata normal form. 152/14644 useless extension candidates. Maximal degree in co-relation 62063. Up to 3615 conditions per place. [2024-11-28 05:24:59,147 INFO L140 encePairwiseOnDemand]: 209/249 looper letters, 663 selfloop transitions, 411 changer transitions 4/1239 dead transitions. [2024-11-28 05:24:59,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 1239 transitions, 19383 flow [2024-11-28 05:24:59,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:24:59,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 05:24:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3198 transitions. [2024-11-28 05:24:59,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7554925584691708 [2024-11-28 05:24:59,151 INFO L175 Difference]: Start difference. First operand has 383 places, 886 transitions, 12912 flow. Second operand 17 states and 3198 transitions. [2024-11-28 05:24:59,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 1239 transitions, 19383 flow [2024-11-28 05:24:59,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 1239 transitions, 19252 flow, removed 27 selfloop flow, removed 12 redundant places. [2024-11-28 05:24:59,953 INFO L231 Difference]: Finished difference. Result has 398 places, 980 transitions, 16759 flow [2024-11-28 05:24:59,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=12816, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=318, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=16759, PETRI_PLACES=398, PETRI_TRANSITIONS=980} [2024-11-28 05:24:59,954 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 146 predicate places. [2024-11-28 05:24:59,954 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 980 transitions, 16759 flow [2024-11-28 05:24:59,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 173.11428571428573) internal successors, (6059), 35 states have internal predecessors, (6059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:24:59,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:24:59,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:59,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:25:00,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:00,157 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:25:00,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:00,158 INFO L85 PathProgramCache]: Analyzing trace with hash -254252942, now seen corresponding path program 1 times [2024-11-28 05:25:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:00,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927882763] [2024-11-28 05:25:00,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:00,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:01,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:01,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927882763] [2024-11-28 05:25:01,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927882763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:25:01,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231358758] [2024-11-28 05:25:01,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:01,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:01,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:25:01,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:25:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:01,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 05:25:01,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:01,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:25:01,455 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:25:01,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:25:01,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:25:01,503 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 21 treesize of output 20 [2024-11-28 05:25:01,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:01,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-28 05:25:01,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:01,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-28 05:25:01,652 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 43 treesize of output 32 [2024-11-28 05:25:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:01,667 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:25:01,702 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1846 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| c_~A~0.base v_ArrVal_1846) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 1)))) (forall ((v_ArrVal_1846 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| c_~A~0.base v_ArrVal_1846) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 2)))) (forall ((v_ArrVal_1846 (Array Int Int))) (= |c_t_funThread1of1ForFork0_init_#t~nondet30#1| (select (select (store |c_#race| c_~A~0.base v_ArrVal_1846) |c_t_funThread1of1ForFork0_init_~p#1.base|) |c_t_funThread1of1ForFork0_init_~p#1.offset|))) (forall ((v_ArrVal_1846 (Array Int Int))) (= (select (select (store |c_#race| c_~A~0.base v_ArrVal_1846) |c_t_funThread1of1ForFork0_init_~p#1.base|) (+ |c_t_funThread1of1ForFork0_init_~p#1.offset| 3)) |c_t_funThread1of1ForFork0_init_#t~nondet30#1|))) is different from false [2024-11-28 05:25:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231358758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:25:14,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:25:14,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-11-28 05:25:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87777892] [2024-11-28 05:25:14,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:25:14,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:25:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:14,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:25:14,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=208, Unknown=17, NotChecked=30, Total=306 [2024-11-28 05:25:14,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 249 [2024-11-28 05:25:14,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 980 transitions, 16759 flow. Second operand has 18 states, 18 states have (on average 149.44444444444446) internal successors, (2690), 18 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:25:14,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:25:14,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 249 [2024-11-28 05:25:14,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:25:23,683 INFO L124 PetriNetUnfolderBase]: 7041/19327 cut-off events. [2024-11-28 05:25:23,683 INFO L125 PetriNetUnfolderBase]: For 142392/142741 co-relation queries the response was YES. [2024-11-28 05:25:23,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83771 conditions, 19327 events. 7041/19327 cut-off events. For 142392/142741 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 199932 event pairs, 1727 based on Foata normal form. 117/18924 useless extension candidates. Maximal degree in co-relation 83566. Up to 7050 conditions per place. [2024-11-28 05:25:24,104 INFO L140 encePairwiseOnDemand]: 228/249 looper letters, 817 selfloop transitions, 240 changer transitions 0/1195 dead transitions. [2024-11-28 05:25:24,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 1195 transitions, 22095 flow [2024-11-28 05:25:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:25:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 05:25:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2272 transitions. [2024-11-28 05:25:24,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6517498565691336 [2024-11-28 05:25:24,107 INFO L175 Difference]: Start difference. First operand has 398 places, 980 transitions, 16759 flow. Second operand 14 states and 2272 transitions. [2024-11-28 05:25:24,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 1195 transitions, 22095 flow [2024-11-28 05:25:24,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1195 transitions, 22054 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-28 05:25:24,744 INFO L231 Difference]: Finished difference. Result has 411 places, 998 transitions, 17899 flow [2024-11-28 05:25:24,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=16726, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=980, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=222, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=743, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17899, PETRI_PLACES=411, PETRI_TRANSITIONS=998} [2024-11-28 05:25:24,745 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 159 predicate places. [2024-11-28 05:25:24,745 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 998 transitions, 17899 flow [2024-11-28 05:25:24,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.44444444444446) internal successors, (2690), 18 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:25:24,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:25:24,746 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:24,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:25:24,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 05:25:24,946 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:25:24,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash 972931696, now seen corresponding path program 7 times [2024-11-28 05:25:24,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:24,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006991553] [2024-11-28 05:25:24,948 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:25:24,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:25,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:25,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006991553] [2024-11-28 05:25:25,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006991553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:25:25,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309037002] [2024-11-28 05:25:25,997 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:25:25,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:25,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:26,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:25:26,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:25:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:26,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 05:25:26,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:26,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:25:26,475 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:25:26,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:25:26,508 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 13 treesize of output 9 [2024-11-28 05:25:26,519 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 23 treesize of output 22 [2024-11-28 05:25:26,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:26,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:25:26,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:26,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:25:26,734 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 45 treesize of output 34 [2024-11-28 05:25:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:26,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:25:26,790 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 7)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 6)) 0))) is different from false [2024-11-28 05:25:26,862 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 7)) 0))) is different from false [2024-11-28 05:25:26,887 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= 0 (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 5)))) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_2091) c_~A~0.base) .cse1) 0))))) is different from false [2024-11-28 05:25:31,216 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~A~0.offset 5)) (.cse3 (+ c_~A~0.offset 6)) (.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (store (select |c_#race| c_~A~0.base) .cse2 0) .cse3 0) .cse1 0)))) (and (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2091) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2091) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2091) c_~A~0.base) .cse2) 0)) (forall ((v_ArrVal_2091 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2091) c_~A~0.base) .cse3) 0))))) is different from false [2024-11-28 05:25:31,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:31,243 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 37 treesize of output 53 [2024-11-28 05:25:31,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:31,251 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 66 treesize of output 36 [2024-11-28 05:25:31,268 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:25:31,268 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:25:31,276 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:25:31,276 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:25:31,285 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:25:31,285 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:25:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:31,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309037002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:25:31,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:25:31,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 20 [2024-11-28 05:25:31,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020595772] [2024-11-28 05:25:31,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:25:31,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:25:31,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:31,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:25:31,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=217, Unknown=18, NotChecked=132, Total=420 [2024-11-28 05:25:32,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 249 [2024-11-28 05:25:32,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 998 transitions, 17899 flow. Second operand has 21 states, 21 states have (on average 150.95238095238096) internal successors, (3170), 21 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:25:32,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:25:32,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 249 [2024-11-28 05:25:32,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:25:44,522 INFO L124 PetriNetUnfolderBase]: 7654/21186 cut-off events. [2024-11-28 05:25:44,522 INFO L125 PetriNetUnfolderBase]: For 182400/183006 co-relation queries the response was YES. [2024-11-28 05:25:44,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99196 conditions, 21186 events. 7654/21186 cut-off events. For 182400/183006 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 224916 event pairs, 1598 based on Foata normal form. 176/20719 useless extension candidates. Maximal degree in co-relation 98986. Up to 6436 conditions per place. [2024-11-28 05:25:44,807 INFO L140 encePairwiseOnDemand]: 217/249 looper letters, 766 selfloop transitions, 506 changer transitions 4/1418 dead transitions. [2024-11-28 05:25:44,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1418 transitions, 25995 flow [2024-11-28 05:25:44,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:25:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 05:25:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3295 transitions. [2024-11-28 05:25:44,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6616465863453815 [2024-11-28 05:25:44,812 INFO L175 Difference]: Start difference. First operand has 411 places, 998 transitions, 17899 flow. Second operand 20 states and 3295 transitions. [2024-11-28 05:25:44,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1418 transitions, 25995 flow [2024-11-28 05:25:45,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 1418 transitions, 25802 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-28 05:25:45,954 INFO L231 Difference]: Finished difference. Result has 430 places, 1093 transitions, 22513 flow [2024-11-28 05:25:45,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=17750, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=419, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=22513, PETRI_PLACES=430, PETRI_TRANSITIONS=1093} [2024-11-28 05:25:45,955 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 178 predicate places. [2024-11-28 05:25:45,955 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 1093 transitions, 22513 flow [2024-11-28 05:25:45,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 150.95238095238096) internal successors, (3170), 21 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:25:45,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:25:45,958 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:45,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:25:46,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:46,159 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:25:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1035775470, now seen corresponding path program 8 times [2024-11-28 05:25:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740736648] [2024-11-28 05:25:46,160 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:25:46,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:46,214 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:25:46,214 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:25:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:47,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740736648] [2024-11-28 05:25:47,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740736648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:25:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137779903] [2024-11-28 05:25:47,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:25:47,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:47,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:47,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:25:47,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:25:48,298 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:25:48,298 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:25:48,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 05:25:48,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:48,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:25:48,628 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 [2024-11-28 05:25:48,645 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 [2024-11-28 05:25:48,701 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:25:48,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:25:48,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:48,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:25:48,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:48,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:25:49,033 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 45 treesize of output 34 [2024-11-28 05:25:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:49,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:25:49,087 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 7)) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 4)) 0))) is different from false [2024-11-28 05:25:49,531 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 6)) 0))))) is different from false [2024-11-28 05:25:49,557 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~A~0.offset 6)) (.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (select |c_#race| c_~A~0.base) .cse2 0) .cse1 0)))) (and (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) .cse2) 0)) (forall ((v_ArrVal_2336 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_#t~malloc32#1.base| v_ArrVal_2336) c_~A~0.base) (+ c_~A~0.offset 5)) 0))))) is different from false [2024-11-28 05:25:50,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:50,012 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 37 treesize of output 53 [2024-11-28 05:25:50,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:25:50,021 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 66 treesize of output 36 [2024-11-28 05:25:50,026 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 7 treesize of output 3 [2024-11-28 05:25:50,043 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:25:50,043 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 37 treesize of output 1 [2024-11-28 05:25:50,057 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:25:50,057 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 37 treesize of output 1 [2024-11-28 05:25:50,067 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:25:50,068 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 37 treesize of output 1 [2024-11-28 05:25:58,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:25:58,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137779903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:25:58,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:25:58,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 23 [2024-11-28 05:25:58,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363784200] [2024-11-28 05:25:58,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:25:58,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 05:25:58,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:58,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 05:25:58,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=325, Unknown=40, NotChecked=120, Total=552 [2024-11-28 05:25:58,349 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 249 [2024-11-28 05:25:58,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 1093 transitions, 22513 flow. Second operand has 24 states, 24 states have (on average 145.95833333333334) internal successors, (3503), 24 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:25:58,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:25:58,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 249 [2024-11-28 05:25:58,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:26:15,863 INFO L124 PetriNetUnfolderBase]: 9819/27232 cut-off events. [2024-11-28 05:26:15,863 INFO L125 PetriNetUnfolderBase]: For 274330/275102 co-relation queries the response was YES. [2024-11-28 05:26:16,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129841 conditions, 27232 events. 9819/27232 cut-off events. For 274330/275102 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 305481 event pairs, 2192 based on Foata normal form. 214/26691 useless extension candidates. Maximal degree in co-relation 129620. Up to 10525 conditions per place. [2024-11-28 05:26:16,189 INFO L140 encePairwiseOnDemand]: 211/249 looper letters, 747 selfloop transitions, 655 changer transitions 6/1545 dead transitions. [2024-11-28 05:26:16,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1545 transitions, 32149 flow [2024-11-28 05:26:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:26:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 05:26:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2622 transitions. [2024-11-28 05:26:16,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6581325301204819 [2024-11-28 05:26:16,193 INFO L175 Difference]: Start difference. First operand has 430 places, 1093 transitions, 22513 flow. Second operand 16 states and 2622 transitions. [2024-11-28 05:26:16,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1545 transitions, 32149 flow [2024-11-28 05:26:17,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 1545 transitions, 31979 flow, removed 30 selfloop flow, removed 11 redundant places. [2024-11-28 05:26:17,588 INFO L231 Difference]: Finished difference. Result has 444 places, 1242 transitions, 29409 flow [2024-11-28 05:26:17,589 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=22397, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1093, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=29409, PETRI_PLACES=444, PETRI_TRANSITIONS=1242} [2024-11-28 05:26:17,589 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 192 predicate places. [2024-11-28 05:26:17,589 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 1242 transitions, 29409 flow [2024-11-28 05:26:17,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 145.95833333333334) internal successors, (3503), 24 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:26:17,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:26:17,591 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:26:17,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:26:17,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 05:26:17,792 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:26:17,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:26:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1116781750, now seen corresponding path program 9 times [2024-11-28 05:26:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:26:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067672710] [2024-11-28 05:26:17,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:26:17,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:26:17,836 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:26:17,837 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:26:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:26:18,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:26:18,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067672710] [2024-11-28 05:26:18,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067672710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:26:18,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070584756] [2024-11-28 05:26:18,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:26:18,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:26:18,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:26:19,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:26:19,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:26:19,868 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:26:19,868 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:26:19,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 05:26:19,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:26:19,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:26:20,348 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:26:20,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:26:20,528 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 13 treesize of output 9 [2024-11-28 05:26:20,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-28 05:26:20,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:26:20,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:26:21,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2024-11-28 05:26:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:26:21,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:26:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:26:24,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070584756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:26:24,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:26:24,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 34 [2024-11-28 05:26:24,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217491334] [2024-11-28 05:26:24,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:26:24,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 05:26:24,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:26:24,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 05:26:24,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:26:46,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:26:53,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 05:26:59,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 249 [2024-11-28 05:26:59,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1242 transitions, 29409 flow. Second operand has 35 states, 35 states have (on average 179.0857142857143) internal successors, (6268), 35 states have internal predecessors, (6268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:26:59,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:26:59,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 249 [2024-11-28 05:26:59,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:27:13,381 INFO L124 PetriNetUnfolderBase]: 5393/19183 cut-off events. [2024-11-28 05:27:13,381 INFO L125 PetriNetUnfolderBase]: For 278747/279993 co-relation queries the response was YES. [2024-11-28 05:27:13,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95201 conditions, 19183 events. 5393/19183 cut-off events. For 278747/279993 co-relation queries the response was YES. Maximal size of possible extension queue 815. Compared 229775 event pairs, 294 based on Foata normal form. 386/19081 useless extension candidates. Maximal degree in co-relation 94976. Up to 3961 conditions per place. [2024-11-28 05:27:13,623 INFO L140 encePairwiseOnDemand]: 217/249 looper letters, 608 selfloop transitions, 666 changer transitions 0/1469 dead transitions. [2024-11-28 05:27:13,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 1469 transitions, 36417 flow [2024-11-28 05:27:13,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:27:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 05:27:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3721 transitions. [2024-11-28 05:27:13,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7471887550200803 [2024-11-28 05:27:13,628 INFO L175 Difference]: Start difference. First operand has 444 places, 1242 transitions, 29409 flow. Second operand 20 states and 3721 transitions. [2024-11-28 05:27:13,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 1469 transitions, 36417 flow [2024-11-28 05:27:14,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 1469 transitions, 36332 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-28 05:27:14,935 INFO L231 Difference]: Finished difference. Result has 467 places, 1311 transitions, 34375 flow [2024-11-28 05:27:14,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=29344, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=597, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34375, PETRI_PLACES=467, PETRI_TRANSITIONS=1311} [2024-11-28 05:27:14,937 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 215 predicate places. [2024-11-28 05:27:14,937 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 1311 transitions, 34375 flow [2024-11-28 05:27:14,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 179.0857142857143) internal successors, (6268), 35 states have internal predecessors, (6268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:27:14,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:27:14,939 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:27:14,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:27:15,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 05:27:15,140 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:27:15,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:27:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash -94790278, now seen corresponding path program 10 times [2024-11-28 05:27:15,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:27:15,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871065018] [2024-11-28 05:27:15,143 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:27:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:27:15,187 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:27:15,187 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:27:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:27:16,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:27:16,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871065018] [2024-11-28 05:27:16,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871065018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:27:16,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853615534] [2024-11-28 05:27:16,071 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:27:16,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:27:16,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:27:16,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:27:16,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:27:16,369 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:27:16,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:27:16,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 05:27:16,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:27:16,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:27:16,597 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:27:16,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:27:16,636 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 13 treesize of output 9 [2024-11-28 05:27:16,708 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 23 treesize of output 22 [2024-11-28 05:27:16,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:16,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:27:16,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:16,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:27:16,779 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 45 treesize of output 34 [2024-11-28 05:27:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:27:16,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:27:16,981 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2826) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2826) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2826) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_2826) c_~A~0.base) (+ c_~A~0.offset 5)) 0))))) is different from false [2024-11-28 05:27:17,588 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~A~0.offset 5)) (.cse2 (+ c_~A~0.offset 6)) (.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (store (select |c_#race| c_~A~0.base) .cse3 0) .cse2 0) .cse1 0)))) (and (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2826) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2826) c_~A~0.base) .cse2) 0)) (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2826) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_2826 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_~p~0#1.base| v_ArrVal_2826) c_~A~0.base) .cse3) 0))))) is different from false [2024-11-28 05:27:17,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:17,640 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 37 treesize of output 53 [2024-11-28 05:27:17,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:17,654 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 66 treesize of output 36 [2024-11-28 05:27:17,672 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:27:17,672 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:27:17,680 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:27:17,680 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:27:17,688 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:27:17,689 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:27:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:27:17,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853615534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:27:17,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:27:17,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 20 [2024-11-28 05:27:17,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176872359] [2024-11-28 05:27:17,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:27:17,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:27:17,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:27:17,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:27:17,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=255, Unknown=37, NotChecked=70, Total=420 [2024-11-28 05:27:18,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 249 [2024-11-28 05:27:18,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1311 transitions, 34375 flow. Second operand has 21 states, 21 states have (on average 150.95238095238096) internal successors, (3170), 21 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:27:18,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:27:18,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 249 [2024-11-28 05:27:18,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:27:44,149 INFO L124 PetriNetUnfolderBase]: 11293/31294 cut-off events. [2024-11-28 05:27:44,149 INFO L125 PetriNetUnfolderBase]: For 462130/463059 co-relation queries the response was YES. [2024-11-28 05:27:44,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161481 conditions, 31294 events. 11293/31294 cut-off events. For 462130/463059 co-relation queries the response was YES. Maximal size of possible extension queue 1033. Compared 359612 event pairs, 2449 based on Foata normal form. 204/30572 useless extension candidates. Maximal degree in co-relation 161243. Up to 7314 conditions per place. [2024-11-28 05:27:44,960 INFO L140 encePairwiseOnDemand]: 218/249 looper letters, 1013 selfloop transitions, 608 changer transitions 2/1765 dead transitions. [2024-11-28 05:27:44,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1765 transitions, 44835 flow [2024-11-28 05:27:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:27:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 05:27:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3286 transitions. [2024-11-28 05:27:44,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598393574297189 [2024-11-28 05:27:44,964 INFO L175 Difference]: Start difference. First operand has 467 places, 1311 transitions, 34375 flow. Second operand 20 states and 3286 transitions. [2024-11-28 05:27:44,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1765 transitions, 44835 flow [2024-11-28 05:27:47,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1765 transitions, 44756 flow, removed 2 selfloop flow, removed 11 redundant places. [2024-11-28 05:27:47,913 INFO L231 Difference]: Finished difference. Result has 484 places, 1409 transitions, 40227 flow [2024-11-28 05:27:47,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=34296, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=40227, PETRI_PLACES=484, PETRI_TRANSITIONS=1409} [2024-11-28 05:27:47,914 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 232 predicate places. [2024-11-28 05:27:47,914 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 1409 transitions, 40227 flow [2024-11-28 05:27:47,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 150.95238095238096) internal successors, (3170), 21 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:27:47,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:27:47,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:27:47,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:27:48,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:27:48,117 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:27:48,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:27:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1016530368, now seen corresponding path program 11 times [2024-11-28 05:27:48,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:27:48,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296563686] [2024-11-28 05:27:48,118 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:27:48,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:27:48,154 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:27:48,154 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:27:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:27:49,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:27:49,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296563686] [2024-11-28 05:27:49,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296563686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:27:49,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482702090] [2024-11-28 05:27:49,020 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:27:49,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:27:49,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:27:49,022 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:27:49,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:27:49,397 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:27:49,398 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:27:49,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 05:27:49,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:27:49,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:27:49,577 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:27:49,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:27:49,621 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 13 treesize of output 9 [2024-11-28 05:27:49,633 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 23 treesize of output 22 [2024-11-28 05:27:49,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:49,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:27:49,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:49,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:27:49,747 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 45 treesize of output 34 [2024-11-28 05:27:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:27:49,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:27:49,912 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (select |c_#race| c_~A~0.base) .cse1 0)))) (and (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_3071) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_3071) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_3071) c_~A~0.base) (+ c_~A~0.offset 6)) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_~p#1.base| v_ArrVal_3071) c_~A~0.base) (+ c_~A~0.offset 4)) 0))))) is different from false [2024-11-28 05:27:50,095 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 6)) (.cse2 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (select |c_#race| c_~A~0.base) .cse1 0) .cse2 0)))) (and (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) (+ c_~A~0.offset 5)) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) .cse2) 0))))) is different from false [2024-11-28 05:27:50,120 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset 5)) (.cse3 (+ c_~A~0.offset 6)) (.cse2 (+ c_~A~0.offset 7))) (let ((.cse0 (store |c_#race| c_~A~0.base (store (store (store (select |c_#race| c_~A~0.base) .cse1 0) .cse3 0) .cse2 0)))) (and (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) .cse1) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) .cse2) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) (+ c_~A~0.offset 4)) 0)) (forall ((v_ArrVal_3071 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_init_#in~p#1.base| v_ArrVal_3071) c_~A~0.base) .cse3) 0))))) is different from false [2024-11-28 05:27:50,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:50,143 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 37 treesize of output 53 [2024-11-28 05:27:50,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:27:50,151 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 66 treesize of output 36 [2024-11-28 05:27:50,163 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:27:50,163 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:27:50,170 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:27:50,171 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:27:50,181 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-11-28 05:27:50,182 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 1 [2024-11-28 05:27:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:27:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482702090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:27:50,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:27:50,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 19 [2024-11-28 05:27:50,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876499930] [2024-11-28 05:27:50,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:27:50,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:27:50,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:27:50,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:27:50,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=218, Unknown=16, NotChecked=96, Total=380 [2024-11-28 05:27:50,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 249 [2024-11-28 05:27:50,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1409 transitions, 40227 flow. Second operand has 20 states, 20 states have (on average 151.05) internal successors, (3021), 20 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:27:50,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:27:50,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 249 [2024-11-28 05:27:50,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:28:14,308 INFO L124 PetriNetUnfolderBase]: 11796/32695 cut-off events. [2024-11-28 05:28:14,309 INFO L125 PetriNetUnfolderBase]: For 566373/567289 co-relation queries the response was YES. [2024-11-28 05:28:14,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174560 conditions, 32695 events. 11796/32695 cut-off events. For 566373/567289 co-relation queries the response was YES. Maximal size of possible extension queue 1088. Compared 378679 event pairs, 2203 based on Foata normal form. 252/32021 useless extension candidates. Maximal degree in co-relation 174314. Up to 7352 conditions per place. [2024-11-28 05:28:14,791 INFO L140 encePairwiseOnDemand]: 220/249 looper letters, 917 selfloop transitions, 757 changer transitions 0/1816 dead transitions. [2024-11-28 05:28:14,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 1816 transitions, 50385 flow [2024-11-28 05:28:14,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:28:14,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 05:28:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3112 transitions. [2024-11-28 05:28:14,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6577890509406045 [2024-11-28 05:28:14,795 INFO L175 Difference]: Start difference. First operand has 484 places, 1409 transitions, 40227 flow. Second operand 19 states and 3112 transitions. [2024-11-28 05:28:14,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 1816 transitions, 50385 flow [2024-11-28 05:28:18,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1816 transitions, 50192 flow, removed 60 selfloop flow, removed 10 redundant places. [2024-11-28 05:28:18,123 INFO L231 Difference]: Finished difference. Result has 499 places, 1489 transitions, 45643 flow [2024-11-28 05:28:18,124 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=40034, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=679, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=45643, PETRI_PLACES=499, PETRI_TRANSITIONS=1489} [2024-11-28 05:28:18,124 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 247 predicate places. [2024-11-28 05:28:18,124 INFO L471 AbstractCegarLoop]: Abstraction has has 499 places, 1489 transitions, 45643 flow [2024-11-28 05:28:18,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 151.05) internal successors, (3021), 20 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:28:18,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:28:18,125 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:28:18,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 05:28:18,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:28:18,326 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 05:28:18,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:28:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1681451660, now seen corresponding path program 12 times [2024-11-28 05:28:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:28:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163688795] [2024-11-28 05:28:18,327 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:28:18,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:28:18,370 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-28 05:28:18,371 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:28:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:28:19,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:28:19,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163688795] [2024-11-28 05:28:19,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163688795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:28:19,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178044233] [2024-11-28 05:28:19,276 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:28:19,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:28:19,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:28:19,279 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:28:19,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75212a8e-c6e7-46f5-89df-5ca40aa4fb8f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:28:20,713 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-28 05:28:20,713 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:28:20,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 05:28:20,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:28:20,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 05:28:21,233 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:28:21,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 05:28:21,436 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 13 treesize of output 9 [2024-11-28 05:28:21,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-28 05:28:21,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 05:28:21,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2024-11-28 05:28:22,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2024-11-28 05:28:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:28:22,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:28:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:28:25,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178044233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:28:25,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:28:25,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 34 [2024-11-28 05:28:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155194212] [2024-11-28 05:28:25,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:28:25,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 05:28:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:28:25,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 05:28:25,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:28:49,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 249 [2024-11-28 05:28:49,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 1489 transitions, 45643 flow. Second operand has 35 states, 35 states have (on average 179.0857142857143) internal successors, (6268), 35 states have internal predecessors, (6268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:28:49,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:28:49,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 249 [2024-11-28 05:28:49,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand