./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/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_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/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_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:51:57,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:51:58,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 14:51:58,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:51:58,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:51:58,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:51:58,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:51:58,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:51:58,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:51:58,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:51:58,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:51:58,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:51:58,124 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:51:58,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:51:58,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:51:58,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:51:58,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:51:58,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:51:58,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:51:58,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:51:58,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:51:58,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:51:58,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:51:58,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:51:58,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:51:58,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:51:58,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:51:58,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:51:58,129 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_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/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 -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2024-11-13 14:51:58,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:51:58,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:51:58,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:51:58,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:51:58,450 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:51:58,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i Unable to find full path for "g++" [2024-11-13 14:52:00,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:52:01,374 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:52:01,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2024-11-13 14:52:01,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/data/7c57ee256/44fe2a4f17834d07b6ad49c5c29962c2/FLAG64cb682d5 [2024-11-13 14:52:01,856 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/data/7c57ee256/44fe2a4f17834d07b6ad49c5c29962c2 [2024-11-13 14:52:01,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:52:01,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:52:01,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:01,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:52:01,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:52:01,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:01" (1/1) ... [2024-11-13 14:52:01,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2a4460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:01, skipping insertion in model container [2024-11-13 14:52:01,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:01" (1/1) ... [2024-11-13 14:52:01,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:52:03,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:03,160 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:52:03,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:03,508 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:52:03,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03 WrapperNode [2024-11-13 14:52:03,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:03,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:03,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:52:03,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:52:03,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,590 INFO L138 Inliner]: procedures = 528, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2024-11-13 14:52:03,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:03,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:52:03,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:52:03,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:52:03,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:52:03,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:52:03,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:52:03,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:52:03,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (1/1) ... [2024-11-13 14:52:03,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:03,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:52:03,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:52:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2024-11-13 14:52:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2024-11-13 14:52:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:52:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 14:52:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 14:52:03,741 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:52:04,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:52:04,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:52:04,699 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:52:04,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:52:04,744 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:52:04,744 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-13 14:52:04,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:04 BoogieIcfgContainer [2024-11-13 14:52:04,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:52:04,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:52:04,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:52:04,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:52:04,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:52:01" (1/3) ... [2024-11-13 14:52:04,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337bc025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:04, skipping insertion in model container [2024-11-13 14:52:04,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:03" (2/3) ... [2024-11-13 14:52:04,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337bc025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:04, skipping insertion in model container [2024-11-13 14:52:04,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:04" (3/3) ... [2024-11-13 14:52:04,756 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2024-11-13 14:52:04,773 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:52:04,775 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_35-trylock_rc.i that has 3 procedures, 239 locations, 1 initial locations, 11 loop locations, and 16 error locations. [2024-11-13 14:52:04,776 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:52:04,949 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 14:52:05,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 277 transitions, 568 flow [2024-11-13 14:52:05,149 INFO L124 PetriNetUnfolderBase]: 39/275 cut-off events. [2024-11-13 14:52:05,152 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 14:52:05,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 275 events. 39/275 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 872 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 198. Up to 5 conditions per place. [2024-11-13 14:52:05,166 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 277 transitions, 568 flow [2024-11-13 14:52:05,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 267 transitions, 546 flow [2024-11-13 14:52:05,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:52:05,213 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;@1636d6d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:52:05,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-13 14:52:05,229 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:52:05,229 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-13 14:52:05,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:52:05,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:05,232 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] [2024-11-13 14:52:05,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:05,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:05,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1407693088, now seen corresponding path program 1 times [2024-11-13 14:52:05,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:05,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127877653] [2024-11-13 14:52:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:05,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:05,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:05,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127877653] [2024-11-13 14:52:05,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127877653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:05,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:05,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:05,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169634844] [2024-11-13 14:52:05,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:05,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:52:05,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:05,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:52:05,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:52:05,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 277 [2024-11-13 14:52:05,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 267 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:05,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:52:05,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 277 [2024-11-13 14:52:05,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:52:06,073 INFO L124 PetriNetUnfolderBase]: 46/544 cut-off events. [2024-11-13 14:52:06,074 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-13 14:52:06,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 544 events. 46/544 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2977 event pairs, 15 based on Foata normal form. 99/554 useless extension candidates. Maximal degree in co-relation 472. Up to 48 conditions per place. [2024-11-13 14:52:06,085 INFO L140 encePairwiseOnDemand]: 256/277 looper letters, 13 selfloop transitions, 2 changer transitions 9/233 dead transitions. [2024-11-13 14:52:06,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 233 transitions, 508 flow [2024-11-13 14:52:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:52:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:52:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2024-11-13 14:52:06,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820697954271961 [2024-11-13 14:52:06,114 INFO L175 Difference]: Start difference. First operand has 237 places, 267 transitions, 546 flow. Second operand 3 states and 733 transitions. [2024-11-13 14:52:06,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 233 transitions, 508 flow [2024-11-13 14:52:06,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 233 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 14:52:06,133 INFO L231 Difference]: Finished difference. Result has 226 places, 224 transitions, 456 flow [2024-11-13 14:52:06,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=226, PETRI_TRANSITIONS=224} [2024-11-13 14:52:06,142 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -11 predicate places. [2024-11-13 14:52:06,143 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 224 transitions, 456 flow [2024-11-13 14:52:06,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:06,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:06,145 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] [2024-11-13 14:52:06,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:52:06,146 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:06,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:06,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1504361, now seen corresponding path program 1 times [2024-11-13 14:52:06,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:06,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352054070] [2024-11-13 14:52:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:06,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:06,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:06,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352054070] [2024-11-13 14:52:06,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352054070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:06,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:06,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:06,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014142494] [2024-11-13 14:52:06,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:06,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:52:06,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:52:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:52:06,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 277 [2024-11-13 14:52:06,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 224 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:06,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:52:06,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 277 [2024-11-13 14:52:06,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:52:06,486 INFO L124 PetriNetUnfolderBase]: 68/727 cut-off events. [2024-11-13 14:52:06,486 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-13 14:52:06,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 727 events. 68/727 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4665 event pairs, 19 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 775. Up to 69 conditions per place. [2024-11-13 14:52:06,496 INFO L140 encePairwiseOnDemand]: 273/277 looper letters, 14 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2024-11-13 14:52:06,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 225 transitions, 491 flow [2024-11-13 14:52:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:52:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:52:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 723 transitions. [2024-11-13 14:52:06,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8700361010830325 [2024-11-13 14:52:06,499 INFO L175 Difference]: Start difference. First operand has 226 places, 224 transitions, 456 flow. Second operand 3 states and 723 transitions. [2024-11-13 14:52:06,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 225 transitions, 491 flow [2024-11-13 14:52:06,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 225 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:52:06,510 INFO L231 Difference]: Finished difference. Result has 217 places, 224 transitions, 462 flow [2024-11-13 14:52:06,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=217, PETRI_TRANSITIONS=224} [2024-11-13 14:52:06,511 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -20 predicate places. [2024-11-13 14:52:06,512 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 224 transitions, 462 flow [2024-11-13 14:52:06,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:06,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:06,515 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] [2024-11-13 14:52:06,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:52:06,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:06,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 913818487, now seen corresponding path program 1 times [2024-11-13 14:52:06,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:06,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812663733] [2024-11-13 14:52:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:06,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:06,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812663733] [2024-11-13 14:52:06,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812663733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:06,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:06,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:06,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249939550] [2024-11-13 14:52:06,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:06,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:52:06,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:06,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:52:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:52:06,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 277 [2024-11-13 14:52:06,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 224 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:06,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:52:06,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 277 [2024-11-13 14:52:06,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:52:07,103 INFO L124 PetriNetUnfolderBase]: 381/1684 cut-off events. [2024-11-13 14:52:07,105 INFO L125 PetriNetUnfolderBase]: For 8/11 co-relation queries the response was YES. [2024-11-13 14:52:07,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1684 events. 381/1684 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13314 event pairs, 100 based on Foata normal form. 2/1509 useless extension candidates. Maximal degree in co-relation 1937. Up to 435 conditions per place. [2024-11-13 14:52:07,120 INFO L140 encePairwiseOnDemand]: 261/277 looper letters, 27 selfloop transitions, 7 changer transitions 5/229 dead transitions. [2024-11-13 14:52:07,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 229 transitions, 546 flow [2024-11-13 14:52:07,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:52:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:52:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2024-11-13 14:52:07,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8399518652226233 [2024-11-13 14:52:07,125 INFO L175 Difference]: Start difference. First operand has 217 places, 224 transitions, 462 flow. Second operand 3 states and 698 transitions. [2024-11-13 14:52:07,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 229 transitions, 546 flow [2024-11-13 14:52:07,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 229 transitions, 546 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:52:07,132 INFO L231 Difference]: Finished difference. Result has 212 places, 218 transitions, 484 flow [2024-11-13 14:52:07,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=212, PETRI_TRANSITIONS=218} [2024-11-13 14:52:07,134 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -25 predicate places. [2024-11-13 14:52:07,134 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 218 transitions, 484 flow [2024-11-13 14:52:07,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:07,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:07,135 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 14:52:07,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:52:07,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:07,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash 65510037, now seen corresponding path program 1 times [2024-11-13 14:52:07,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:07,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064828600] [2024-11-13 14:52:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:07,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:07,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:07,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064828600] [2024-11-13 14:52:07,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064828600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:07,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:07,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737033605] [2024-11-13 14:52:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:07,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:52:07,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:52:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:52:07,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 277 [2024-11-13 14:52:07,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 218 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:07,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:52:07,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 277 [2024-11-13 14:52:07,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:52:07,744 INFO L124 PetriNetUnfolderBase]: 285/2051 cut-off events. [2024-11-13 14:52:07,744 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-13 14:52:07,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 2051 events. 285/2051 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 16612 event pairs, 31 based on Foata normal form. 0/1802 useless extension candidates. Maximal degree in co-relation 2325. Up to 166 conditions per place. [2024-11-13 14:52:07,766 INFO L140 encePairwiseOnDemand]: 266/277 looper letters, 24 selfloop transitions, 8 changer transitions 0/232 dead transitions. [2024-11-13 14:52:07,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 232 transitions, 578 flow [2024-11-13 14:52:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:52:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:52:07,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2024-11-13 14:52:07,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8760529482551144 [2024-11-13 14:52:07,769 INFO L175 Difference]: Start difference. First operand has 212 places, 218 transitions, 484 flow. Second operand 3 states and 728 transitions. [2024-11-13 14:52:07,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 232 transitions, 578 flow [2024-11-13 14:52:07,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 232 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:52:07,776 INFO L231 Difference]: Finished difference. Result has 211 places, 226 transitions, 554 flow [2024-11-13 14:52:07,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=211, PETRI_TRANSITIONS=226} [2024-11-13 14:52:07,777 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -26 predicate places. [2024-11-13 14:52:07,778 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 226 transitions, 554 flow [2024-11-13 14:52:07,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:07,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:07,779 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] [2024-11-13 14:52:07,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:52:07,779 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:07,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:07,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1308072945, now seen corresponding path program 1 times [2024-11-13 14:52:07,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:07,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45576004] [2024-11-13 14:52:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:07,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45576004] [2024-11-13 14:52:07,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45576004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:07,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:07,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506757095] [2024-11-13 14:52:07,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:07,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:52:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:07,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:52:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:52:07,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 277 [2024-11-13 14:52:07,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 226 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:07,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:52:07,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 277 [2024-11-13 14:52:07,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:52:08,648 INFO L124 PetriNetUnfolderBase]: 488/3337 cut-off events. [2024-11-13 14:52:08,648 INFO L125 PetriNetUnfolderBase]: For 302/318 co-relation queries the response was YES. [2024-11-13 14:52:08,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4352 conditions, 3337 events. 488/3337 cut-off events. For 302/318 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 30802 event pairs, 57 based on Foata normal form. 7/2937 useless extension candidates. Maximal degree in co-relation 4138. Up to 287 conditions per place. [2024-11-13 14:52:08,687 INFO L140 encePairwiseOnDemand]: 270/277 looper letters, 23 selfloop transitions, 11 changer transitions 0/240 dead transitions. [2024-11-13 14:52:08,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 240 transitions, 674 flow [2024-11-13 14:52:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:52:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:52:08,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2024-11-13 14:52:08,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8772563176895307 [2024-11-13 14:52:08,745 INFO L175 Difference]: Start difference. First operand has 211 places, 226 transitions, 554 flow. Second operand 3 states and 729 transitions. [2024-11-13 14:52:08,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 240 transitions, 674 flow [2024-11-13 14:52:08,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 240 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:52:08,753 INFO L231 Difference]: Finished difference. Result has 213 places, 234 transitions, 630 flow [2024-11-13 14:52:08,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=213, PETRI_TRANSITIONS=234} [2024-11-13 14:52:08,754 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -24 predicate places. [2024-11-13 14:52:08,754 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 234 transitions, 630 flow [2024-11-13 14:52:08,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:08,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:08,755 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] [2024-11-13 14:52:08,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:52:08,756 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:08,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:08,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1015921271, now seen corresponding path program 1 times [2024-11-13 14:52:08,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:08,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685022228] [2024-11-13 14:52:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:08,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:08,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:08,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685022228] [2024-11-13 14:52:08,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685022228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:08,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:08,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:08,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363771730] [2024-11-13 14:52:08,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:08,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:52:08,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:52:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:52:08,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 277 [2024-11-13 14:52:08,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 234 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:08,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:52:08,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 277 [2024-11-13 14:52:08,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:52:09,740 INFO L124 PetriNetUnfolderBase]: 615/4076 cut-off events. [2024-11-13 14:52:09,741 INFO L125 PetriNetUnfolderBase]: For 844/864 co-relation queries the response was YES. [2024-11-13 14:52:09,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5543 conditions, 4076 events. 615/4076 cut-off events. For 844/864 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 39319 event pairs, 78 based on Foata normal form. 3/3570 useless extension candidates. Maximal degree in co-relation 5270. Up to 348 conditions per place. [2024-11-13 14:52:09,788 INFO L140 encePairwiseOnDemand]: 270/277 looper letters, 27 selfloop transitions, 14 changer transitions 0/248 dead transitions. [2024-11-13 14:52:09,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 248 transitions, 785 flow [2024-11-13 14:52:09,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:52:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:52:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 727 transitions. [2024-11-13 14:52:09,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8748495788206979 [2024-11-13 14:52:09,792 INFO L175 Difference]: Start difference. First operand has 213 places, 234 transitions, 630 flow. Second operand 3 states and 727 transitions. [2024-11-13 14:52:09,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 248 transitions, 785 flow [2024-11-13 14:52:09,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 248 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:52:09,803 INFO L231 Difference]: Finished difference. Result has 215 places, 244 transitions, 742 flow [2024-11-13 14:52:09,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=215, PETRI_TRANSITIONS=244} [2024-11-13 14:52:09,805 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -22 predicate places. [2024-11-13 14:52:09,805 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 244 transitions, 742 flow [2024-11-13 14:52:09,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:09,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:52:09,807 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] [2024-11-13 14:52:09,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:52:09,808 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-13 14:52:09,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:09,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1710747903, now seen corresponding path program 1 times [2024-11-13 14:52:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:09,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277073736] [2024-11-13 14:52:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:09,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:52:09,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:52:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:52:09,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:52:09,979 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:52:09,984 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2024-11-13 14:52:09,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-13 14:52:09,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-13 14:52:09,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-13 14:52:09,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-13 14:52:09,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:52:09,994 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:52:10,235 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:52:10,235 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:52:10,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:52:10 BasicIcfg [2024-11-13 14:52:10,254 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:52:10,258 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:52:10,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:52:10,258 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:52:10,259 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:04" (3/4) ... [2024-11-13 14:52:10,260 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 14:52:10,472 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:52:10,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:52:10,474 INFO L158 Benchmark]: Toolchain (without parser) took 8614.21ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 89.2MB in the beginning and 248.7MB in the end (delta: -159.5MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2024-11-13 14:52:10,475 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:10,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1649.22ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 77.2MB in the end (delta: 11.8MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2024-11-13 14:52:10,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.05ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 74.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:10,477 INFO L158 Benchmark]: Boogie Preprocessor took 76.51ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:52:10,478 INFO L158 Benchmark]: RCFGBuilder took 1073.56ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 42.6MB in the end (delta: 28.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 14:52:10,479 INFO L158 Benchmark]: TraceAbstraction took 5510.21ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 42.1MB in the beginning and 264.2MB in the end (delta: -222.2MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. [2024-11-13 14:52:10,480 INFO L158 Benchmark]: Witness Printer took 214.44ms. Allocated memory is still 352.3MB. Free memory was 264.2MB in the beginning and 248.7MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:52:10,484 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1649.22ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 77.2MB in the end (delta: 11.8MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.05ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 74.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.51ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1073.56ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 42.6MB in the end (delta: 28.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5510.21ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 42.1MB in the beginning and 264.2MB in the end (delta: -222.2MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. * Witness Printer took 214.44ms. Allocated memory is still 352.3MB. Free memory was 264.2MB in the beginning and 248.7MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1830]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex={1:0}] [L1798] 0 long counter; VAL [counter=0, mutex={1:0}] [L1799] 0 time_t end_time; VAL [counter=0, end_time=0, mutex={1:0}] [L1836] 0 int status; VAL [\old(argc)=1151, \old(argv)={1152:1153}, argc=1151, counter=0, end_time=0, mutex={1:0}] [L1837] 0 pthread_t counter_thread_id; VAL [\old(argc)=1151, \old(argv)={1152:1153}, argc=1151, counter=0, end_time=0, mutex={1:0}] [L1838] 0 pthread_t monitor_thread_id; VAL [\old(argc)=1151, \old(argv)={1152:1153}, argc=1151, counter=0, end_time=0, mutex={1:0}] [L1839] 0 end_time = time (((void *)0)) + 60 VAL [\old(argc)=1151, \old(argv)={1152:1153}, argc=1151, counter=0, end_time=60, mutex={1:0}] [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=1151, \old(argv)={1152:1153}, argc=1151, counter=0, counter_thread_id=-1, end_time=60, mutex={1:0}] [L1801] 1 int status; VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}] [L1802] 1 int spin; VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}] [L1803] 1 time (((void *)0)) < end_time VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}] [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}] [L1804] 1 status = pthread_mutex_lock (&mutex) VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}, status=0] [L1805] COND FALSE 1 !(status != 0) VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}, status=0] [L1807] 1 spin = 0 VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}, spin=0, status=0] [L1808] 1 counter++ VAL [\old(arg)={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}, spin=0, status=0] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=1151, \old(argv)={1152:1153}, arg={0:0}, argc=1151, counter=0, counter_thread_id=-1, end_time=60, mutex={1:0}, spin=0, status=0, status=0] [L1841] COND FALSE 0 !(status != 0) VAL [\old(arg)={0:0}, \old(argc)=1151, \old(argv)={1152:1153}, arg={0:0}, argc=1151, counter=0, counter_thread_id=-1, end_time=60, mutex={1:0}, spin=0, status=0, status=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=1151, \old(argv)={1152:1153}, arg={0:0}, argc=1151, counter=0, counter_thread_id=-1, end_time=60, monitor_thread_id=0, mutex={1:0}, spin=0, status=0, status=0] [L1817] 2 int status; VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={1:0}, spin=0, status=0] [L1818] 2 int misses = 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={1:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={1:0}, spin=0, status=0] [L1819] COND TRUE 2 time (((void *)0)) < end_time VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={1:0}, spin=0, status=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={1:0}, spin=0, status=0, status=16] [L1822] COND FALSE 2 !(status != 16) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={1:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={1:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=1, end_time=60, misses=0, mutex={1:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, counter=1, end_time=60, misses=0, mutex={1:0}, spin=0, status=0, status=16] Now there is a data race on ~counter~0 between C: counter++ [1808] and C: counter++ [1830] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 370 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 215 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 38 mSDtfsCounter, 215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=742occurred in iteration=6, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 14:52:10,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d760f8a4-d8f6-477c-91c4-e6fa234f6a09/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE