./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:51:51,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:51:51,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:51:51,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:51:51,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:51:51,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:51:51,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:51:51,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:51:51,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:51:51,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:51:51,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:51:51,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:51:51,769 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:51:51,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:51:51,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:51:51,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:51:51,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:51:51,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:51:51,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:51:51,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:51:51,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:51:51,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:51:51,770 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:51:51,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:51:51,771 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:51:51,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:51:51,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:51:51,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:51:51,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:51:51,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:51:51,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:51:51,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:51:51,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:51:51,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:51:51,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:51:51,773 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_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2024-11-13 15:51:52,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:51:52,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:51:52,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:51:52,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:51:52,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:51:52,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i Unable to find full path for "g++" [2024-11-13 15:51:54,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:51:54,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:51:54,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-13 15:51:54,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/data/b9a74b6db/03758d147a3c4db4b063c58e0110a991/FLAG31b16853c [2024-11-13 15:51:54,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/data/b9a74b6db/03758d147a3c4db4b063c58e0110a991 [2024-11-13 15:51:54,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:51:54,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:51:54,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:51:54,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:51:54,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:51:54,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:51:54" (1/1) ... [2024-11-13 15:51:54,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794b061e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:54, skipping insertion in model container [2024-11-13 15:51:54,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:51:54" (1/1) ... [2024-11-13 15:51:54,490 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:51:55,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:51:55,218 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:51:55,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:51:55,413 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:51:55,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55 WrapperNode [2024-11-13 15:51:55,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:51:55,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:51:55,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:51:55,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:51:55,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,523 INFO L138 Inliner]: procedures = 378, calls = 92, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 442 [2024-11-13 15:51:55,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:51:55,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:51:55,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:51:55,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:51:55,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:51:55,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:51:55,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:51:55,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:51:55,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (1/1) ... [2024-11-13 15:51:55,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:51:55,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:51:55,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:51:55,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455ef91-6f66-4911-9e83-5bf51acec308/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:51:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:51:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 15:51:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:51:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:51:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:51:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:51:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:51:55,700 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:51:55,915 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:51:55,917 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:51:56,882 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:51:56,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:51:56,948 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:51:56,948 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-13 15:51:56,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:51:56 BoogieIcfgContainer [2024-11-13 15:51:56,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:51:56,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:51:56,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:51:56,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:51:56,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:51:54" (1/3) ... [2024-11-13 15:51:56,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67528fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:51:56, skipping insertion in model container [2024-11-13 15:51:56,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:51:55" (2/3) ... [2024-11-13 15:51:56,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67528fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:51:56, skipping insertion in model container [2024-11-13 15:51:56,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:51:56" (3/3) ... [2024-11-13 15:51:56,957 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-11-13 15:51:56,974 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:51:56,976 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_94-alloc_region_racing.i that has 2 procedures, 450 locations, 1 initial locations, 13 loop locations, and 29 error locations. [2024-11-13 15:51:56,977 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:51:57,156 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:51:57,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 481 transitions, 969 flow [2024-11-13 15:51:57,633 INFO L124 PetriNetUnfolderBase]: 48/703 cut-off events. [2024-11-13 15:51:57,636 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:51:57,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 703 events. 48/703 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2340 event pairs, 0 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 388. Up to 8 conditions per place. [2024-11-13 15:51:57,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 481 transitions, 969 flow [2024-11-13 15:51:57,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 481 transitions, 969 flow [2024-11-13 15:51:57,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:51:57,708 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;@18b22419, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:51:57,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-13 15:51:57,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:51:57,721 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-11-13 15:51:57,722 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:51:57,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:51:57,723 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:51:57,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-13 15:51:57,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:51:57,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1606805362, now seen corresponding path program 1 times [2024-11-13 15:51:57,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:51:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045319921] [2024-11-13 15:51:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:51:57,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:51:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:51:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:51:58,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:51:58,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045319921] [2024-11-13 15:51:58,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045319921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:51:58,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:51:58,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:51:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719621595] [2024-11-13 15:51:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:51:58,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:51:58,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:51:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:51:59,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:51:59,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 481 [2024-11-13 15:51:59,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 481 transitions, 969 flow. Second operand has 6 states, 6 states have (on average 306.3333333333333) internal successors, (1838), 6 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:51:59,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:51:59,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 481 [2024-11-13 15:51:59,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:52:03,559 INFO L124 PetriNetUnfolderBase]: 3778/14466 cut-off events. [2024-11-13 15:52:03,559 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:52:03,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21956 conditions, 14466 events. 3778/14466 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 135609 event pairs, 3600 based on Foata normal form. 1282/14612 useless extension candidates. Maximal degree in co-relation 21556. Up to 7480 conditions per place. [2024-11-13 15:52:03,635 INFO L140 encePairwiseOnDemand]: 448/481 looper letters, 141 selfloop transitions, 5 changer transitions 0/449 dead transitions. [2024-11-13 15:52:03,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 449 transitions, 1197 flow [2024-11-13 15:52:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:52:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:52:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2004 transitions. [2024-11-13 15:52:03,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6943866943866944 [2024-11-13 15:52:03,667 INFO L175 Difference]: Start difference. First operand has 453 places, 481 transitions, 969 flow. Second operand 6 states and 2004 transitions. [2024-11-13 15:52:03,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 449 transitions, 1197 flow [2024-11-13 15:52:03,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 449 transitions, 1197 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:52:03,692 INFO L231 Difference]: Finished difference. Result has 453 places, 449 transitions, 915 flow [2024-11-13 15:52:03,697 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=915, PETRI_PLACES=453, PETRI_TRANSITIONS=449} [2024-11-13 15:52:03,702 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 0 predicate places. [2024-11-13 15:52:03,703 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 449 transitions, 915 flow [2024-11-13 15:52:03,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 306.3333333333333) internal successors, (1838), 6 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:03,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:52:03,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:03,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:52:03,705 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-13 15:52:03,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1774132712, now seen corresponding path program 1 times [2024-11-13 15:52:03,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:52:03,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952007649] [2024-11-13 15:52:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:03,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:52:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:52:04,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:52:04,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952007649] [2024-11-13 15:52:04,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952007649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:52:04,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:52:04,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:52:04,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218591464] [2024-11-13 15:52:04,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:52:04,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:52:04,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:52:04,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:52:04,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:52:05,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 481 [2024-11-13 15:52:05,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 449 transitions, 915 flow. Second operand has 6 states, 6 states have (on average 353.8333333333333) internal successors, (2123), 6 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:05,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:52:05,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 481 [2024-11-13 15:52:05,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:52:08,505 INFO L124 PetriNetUnfolderBase]: 1984/12455 cut-off events. [2024-11-13 15:52:08,505 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 15:52:08,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16330 conditions, 12455 events. 1984/12455 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 123245 event pairs, 1166 based on Foata normal form. 0/11287 useless extension candidates. Maximal degree in co-relation 16263. Up to 3409 conditions per place. [2024-11-13 15:52:08,573 INFO L140 encePairwiseOnDemand]: 444/481 looper letters, 138 selfloop transitions, 107 changer transitions 0/594 dead transitions. [2024-11-13 15:52:08,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 594 transitions, 1698 flow [2024-11-13 15:52:08,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:52:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:52:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2359 transitions. [2024-11-13 15:52:08,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8173943173943174 [2024-11-13 15:52:08,585 INFO L175 Difference]: Start difference. First operand has 453 places, 449 transitions, 915 flow. Second operand 6 states and 2359 transitions. [2024-11-13 15:52:08,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 594 transitions, 1698 flow [2024-11-13 15:52:08,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 594 transitions, 1688 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:52:08,606 INFO L231 Difference]: Finished difference. Result has 457 places, 549 transitions, 1593 flow [2024-11-13 15:52:08,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1593, PETRI_PLACES=457, PETRI_TRANSITIONS=549} [2024-11-13 15:52:08,609 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 4 predicate places. [2024-11-13 15:52:08,610 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 549 transitions, 1593 flow [2024-11-13 15:52:08,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 353.8333333333333) internal successors, (2123), 6 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:08,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:52:08,611 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:08,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:52:08,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-13 15:52:08,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:08,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1602579810, now seen corresponding path program 1 times [2024-11-13 15:52:08,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:52:08,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996475792] [2024-11-13 15:52:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:52:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:52:09,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:52:09,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996475792] [2024-11-13 15:52:09,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996475792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:52:09,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:52:09,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:52:09,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897546431] [2024-11-13 15:52:09,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:52:09,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:52:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:52:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:52:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:52:10,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 481 [2024-11-13 15:52:10,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 549 transitions, 1593 flow. Second operand has 6 states, 6 states have (on average 310.6666666666667) internal successors, (1864), 6 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:10,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:52:10,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 481 [2024-11-13 15:52:10,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:52:14,098 INFO L124 PetriNetUnfolderBase]: 5534/21193 cut-off events. [2024-11-13 15:52:14,099 INFO L125 PetriNetUnfolderBase]: For 3365/3411 co-relation queries the response was YES. [2024-11-13 15:52:14,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36367 conditions, 21193 events. 5534/21193 cut-off events. For 3365/3411 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 216278 event pairs, 3888 based on Foata normal form. 0/19329 useless extension candidates. Maximal degree in co-relation 35835. Up to 10652 conditions per place. [2024-11-13 15:52:14,195 INFO L140 encePairwiseOnDemand]: 428/481 looper letters, 277 selfloop transitions, 171 changer transitions 0/753 dead transitions. [2024-11-13 15:52:14,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 753 transitions, 3089 flow [2024-11-13 15:52:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:52:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:52:14,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2198 transitions. [2024-11-13 15:52:14,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7616077616077616 [2024-11-13 15:52:14,203 INFO L175 Difference]: Start difference. First operand has 457 places, 549 transitions, 1593 flow. Second operand 6 states and 2198 transitions. [2024-11-13 15:52:14,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 753 transitions, 3089 flow [2024-11-13 15:52:14,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 753 transitions, 3089 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:52:14,229 INFO L231 Difference]: Finished difference. Result has 466 places, 713 transitions, 2889 flow [2024-11-13 15:52:14,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=1591, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2889, PETRI_PLACES=466, PETRI_TRANSITIONS=713} [2024-11-13 15:52:14,230 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 13 predicate places. [2024-11-13 15:52:14,231 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 713 transitions, 2889 flow [2024-11-13 15:52:14,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 310.6666666666667) internal successors, (1864), 6 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:14,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:52:14,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:14,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:52:14,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-13 15:52:14,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:14,233 INFO L85 PathProgramCache]: Analyzing trace with hash 590023824, now seen corresponding path program 1 times [2024-11-13 15:52:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:52:14,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938168313] [2024-11-13 15:52:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:52:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:52:14,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:52:14,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938168313] [2024-11-13 15:52:14,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938168313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:52:14,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:52:14,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:52:14,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562039358] [2024-11-13 15:52:14,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:52:14,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:52:14,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:52:14,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:52:14,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:52:15,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 481 [2024-11-13 15:52:15,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 713 transitions, 2889 flow. Second operand has 6 states, 6 states have (on average 310.6666666666667) internal successors, (1864), 6 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:15,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:52:15,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 481 [2024-11-13 15:52:15,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:52:19,878 INFO L124 PetriNetUnfolderBase]: 5975/22705 cut-off events. [2024-11-13 15:52:19,879 INFO L125 PetriNetUnfolderBase]: For 7276/7334 co-relation queries the response was YES. [2024-11-13 15:52:19,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43662 conditions, 22705 events. 5975/22705 cut-off events. For 7276/7334 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 231587 event pairs, 3928 based on Foata normal form. 0/20776 useless extension candidates. Maximal degree in co-relation 43106. Up to 11147 conditions per place. [2024-11-13 15:52:19,989 INFO L140 encePairwiseOnDemand]: 428/481 looper letters, 437 selfloop transitions, 171 changer transitions 0/917 dead transitions. [2024-11-13 15:52:19,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 917 transitions, 5025 flow [2024-11-13 15:52:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:52:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:52:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2198 transitions. [2024-11-13 15:52:19,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7616077616077616 [2024-11-13 15:52:19,997 INFO L175 Difference]: Start difference. First operand has 466 places, 713 transitions, 2889 flow. Second operand 6 states and 2198 transitions. [2024-11-13 15:52:19,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 917 transitions, 5025 flow [2024-11-13 15:52:20,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 917 transitions, 4833 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-13 15:52:20,039 INFO L231 Difference]: Finished difference. Result has 475 places, 877 transitions, 4313 flow [2024-11-13 15:52:20,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=2695, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4313, PETRI_PLACES=475, PETRI_TRANSITIONS=877} [2024-11-13 15:52:20,041 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 22 predicate places. [2024-11-13 15:52:20,041 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 877 transitions, 4313 flow [2024-11-13 15:52:20,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 310.6666666666667) internal successors, (1864), 6 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:20,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:52:20,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:20,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:52:20,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-13 15:52:20,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash 216092686, now seen corresponding path program 1 times [2024-11-13 15:52:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:52:20,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487019151] [2024-11-13 15:52:20,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:20,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:52:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:52:20,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:52:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487019151] [2024-11-13 15:52:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487019151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:52:20,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:52:20,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:52:20,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780616221] [2024-11-13 15:52:20,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:52:20,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:52:20,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:52:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:52:20,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:52:21,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 481 [2024-11-13 15:52:21,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 877 transitions, 4313 flow. Second operand has 6 states, 6 states have (on average 308.1666666666667) internal successors, (1849), 6 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:21,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:52:21,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 481 [2024-11-13 15:52:21,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:52:26,780 INFO L124 PetriNetUnfolderBase]: 6423/23959 cut-off events. [2024-11-13 15:52:26,780 INFO L125 PetriNetUnfolderBase]: For 13595/13715 co-relation queries the response was YES. [2024-11-13 15:52:26,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51815 conditions, 23959 events. 6423/23959 cut-off events. For 13595/13715 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 245844 event pairs, 3909 based on Foata normal form. 0/21949 useless extension candidates. Maximal degree in co-relation 51179. Up to 12188 conditions per place. [2024-11-13 15:52:26,860 INFO L140 encePairwiseOnDemand]: 434/481 looper letters, 613 selfloop transitions, 166 changer transitions 0/1082 dead transitions. [2024-11-13 15:52:26,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 1082 transitions, 7113 flow [2024-11-13 15:52:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:52:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:52:26,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2178 transitions. [2024-11-13 15:52:26,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7546777546777547 [2024-11-13 15:52:26,865 INFO L175 Difference]: Start difference. First operand has 475 places, 877 transitions, 4313 flow. Second operand 6 states and 2178 transitions. [2024-11-13 15:52:26,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 1082 transitions, 7113 flow [2024-11-13 15:52:26,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 1082 transitions, 6601 flow, removed 256 selfloop flow, removed 0 redundant places. [2024-11-13 15:52:26,916 INFO L231 Difference]: Finished difference. Result has 485 places, 1042 transitions, 5719 flow [2024-11-13 15:52:26,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=3801, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5719, PETRI_PLACES=485, PETRI_TRANSITIONS=1042} [2024-11-13 15:52:26,918 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 32 predicate places. [2024-11-13 15:52:26,918 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 1042 transitions, 5719 flow [2024-11-13 15:52:26,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.1666666666667) internal successors, (1849), 6 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:26,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:52:26,919 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:26,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:52:26,920 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-13 15:52:26,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash -457117232, now seen corresponding path program 1 times [2024-11-13 15:52:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:52:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76774890] [2024-11-13 15:52:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:26,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:52:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:52:26,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:52:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:52:27,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:52:27,037 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:52:27,038 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-13 15:52:27,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-13 15:52:27,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-13 15:52:27,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-13 15:52:27,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-13 15:52:27,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:52:27,048 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 15:52:27,052 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:52:27,052 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:52:27,170 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:52:27,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 606 places, 646 transitions, 1308 flow [2024-11-13 15:52:27,435 INFO L124 PetriNetUnfolderBase]: 81/1118 cut-off events. [2024-11-13 15:52:27,435 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:52:27,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 1118 events. 81/1118 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5058 event pairs, 0 based on Foata normal form. 0/963 useless extension candidates. Maximal degree in co-relation 705. Up to 12 conditions per place. [2024-11-13 15:52:27,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 606 places, 646 transitions, 1308 flow [2024-11-13 15:52:27,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 606 places, 646 transitions, 1308 flow [2024-11-13 15:52:27,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:52:27,464 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;@18b22419, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:52:27,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-13 15:52:27,467 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:52:27,467 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-11-13 15:52:27,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:52:27,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:52:27,468 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:27,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-13 15:52:27,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:27,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1829913778, now seen corresponding path program 1 times [2024-11-13 15:52:27,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:52:27,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312583571] [2024-11-13 15:52:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:27,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:52:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:52:27,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:52:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312583571] [2024-11-13 15:52:27,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312583571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:52:27,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:52:27,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:52:27,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526030463] [2024-11-13 15:52:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:52:27,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:52:27,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:52:27,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:52:27,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:52:28,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 646 [2024-11-13 15:52:28,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 646 transitions, 1308 flow. Second operand has 6 states, 6 states have (on average 406.3333333333333) internal successors, (2438), 6 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:52:28,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:52:28,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 646 [2024-11-13 15:52:28,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand