./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.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_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/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_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/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_b5fe7930-8f27-4666-8c8b-b903605ec378/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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:55:48,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:55:48,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 14:55:48,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:55:48,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:55:48,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:55:48,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:55:48,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:55:48,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:55:48,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:55:48,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:55:48,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:55:48,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:55:48,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:55:48,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:55:48,762 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:55:48,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:55:48,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:55:48,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:55:48,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:55:48,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:55:48,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:55:48,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:55:48,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:55:48,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:55:48,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:55:48,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:55:48,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:55:48,768 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_b5fe7930-8f27-4666-8c8b-b903605ec378/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 -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2024-11-13 14:55:49,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:55:49,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:55:49,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:55:49,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:55:49,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:55:49,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread/stateful01-1.i Unable to find full path for "g++" [2024-11-13 14:55:51,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:55:51,771 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:55:51,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/sv-benchmarks/c/pthread/stateful01-1.i [2024-11-13 14:55:51,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/data/6d4c1fb27/98f0d751192447db94245321b802b36b/FLAG2867ce5f1 [2024-11-13 14:55:51,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/data/6d4c1fb27/98f0d751192447db94245321b802b36b [2024-11-13 14:55:51,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:55:51,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:55:51,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:55:51,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:55:51,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:55:51,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:55:51" (1/1) ... [2024-11-13 14:55:51,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2040d9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:51, skipping insertion in model container [2024-11-13 14:55:51,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:55:51" (1/1) ... [2024-11-13 14:55:51,897 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:55:52,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:55:52,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:55:52,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:55:52,462 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:55:52,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52 WrapperNode [2024-11-13 14:55:52,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:55:52,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:55:52,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:55:52,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:55:52,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,512 INFO L138 Inliner]: procedures = 171, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-13 14:55:52,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:55:52,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:55:52,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:55:52,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:55:52,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:55:52,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:55:52,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:55:52,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:55:52,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (1/1) ... [2024-11-13 14:55:52,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:55:52,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:52,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:55:52,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:55:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 14:55:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 14:55:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 14:55:52,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 14:55:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:55:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:55:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 14:55:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 14:55:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:55:52,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:55:52,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:55:52,629 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 14:55:52,861 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:55:52,863 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:55:53,317 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:55:53,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:55:53,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:55:53,357 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:55:53,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:55:53 BoogieIcfgContainer [2024-11-13 14:55:53,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:55:53,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:55:53,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:55:53,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:55:53,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:55:51" (1/3) ... [2024-11-13 14:55:53,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b69bdbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:55:53, skipping insertion in model container [2024-11-13 14:55:53,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:55:52" (2/3) ... [2024-11-13 14:55:53,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b69bdbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:55:53, skipping insertion in model container [2024-11-13 14:55:53,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:55:53" (3/3) ... [2024-11-13 14:55:53,372 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-11-13 14:55:53,392 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:55:53,394 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG stateful01-1.i that has 3 procedures, 146 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2024-11-13 14:55:53,394 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:55:53,531 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 14:55:53,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 148 transitions, 310 flow [2024-11-13 14:55:53,773 INFO L124 PetriNetUnfolderBase]: 3/146 cut-off events. [2024-11-13 14:55:53,776 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 14:55:53,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 3/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-13 14:55:53,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 148 transitions, 310 flow [2024-11-13 14:55:53,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 129 transitions, 270 flow [2024-11-13 14:55:53,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:55:53,821 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;@7318e6f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:55:53,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-13 14:55:53,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:55:53,847 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-13 14:55:53,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:55:53,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:53,848 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] [2024-11-13 14:55:53,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:53,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:53,855 INFO L85 PathProgramCache]: Analyzing trace with hash -2054838942, now seen corresponding path program 1 times [2024-11-13 14:55:53,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:53,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136412277] [2024-11-13 14:55:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:53,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:54,200 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 14:55:54,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136412277] [2024-11-13 14:55:54,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136412277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:54,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:54,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635250631] [2024-11-13 14:55:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:54,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:54,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:54,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:54,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:54,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2024-11-13 14:55:54,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 129 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 14:55:54,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:54,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2024-11-13 14:55:54,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:54,655 INFO L124 PetriNetUnfolderBase]: 48/406 cut-off events. [2024-11-13 14:55:54,656 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-13 14:55:54,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 406 events. 48/406 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1752 event pairs, 48 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 447. Up to 117 conditions per place. [2024-11-13 14:55:54,666 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 20 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2024-11-13 14:55:54,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 128 transitions, 312 flow [2024-11-13 14:55:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-13 14:55:54,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2024-11-13 14:55:54,697 INFO L175 Difference]: Start difference. First operand has 136 places, 129 transitions, 270 flow. Second operand 3 states and 386 transitions. [2024-11-13 14:55:54,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 128 transitions, 312 flow [2024-11-13 14:55:54,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 128 transitions, 304 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 14:55:54,717 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 264 flow [2024-11-13 14:55:54,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2024-11-13 14:55:54,730 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -3 predicate places. [2024-11-13 14:55:54,730 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 264 flow [2024-11-13 14:55:54,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 14:55:54,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:54,731 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] [2024-11-13 14:55:54,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:55:54,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:54,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1866652435, now seen corresponding path program 1 times [2024-11-13 14:55:54,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:54,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404995143] [2024-11-13 14:55:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:54,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:54,897 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 14:55:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:54,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404995143] [2024-11-13 14:55:54,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404995143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:54,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:54,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351778918] [2024-11-13 14:55:54,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:54,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:54,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:54,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:54,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:54,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2024-11-13 14:55:54,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 14:55:54,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:54,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2024-11-13 14:55:54,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:55,183 INFO L124 PetriNetUnfolderBase]: 48/405 cut-off events. [2024-11-13 14:55:55,184 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-13 14:55:55,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 405 events. 48/405 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1716 event pairs, 48 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 491. Up to 117 conditions per place. [2024-11-13 14:55:55,187 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 20 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2024-11-13 14:55:55,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 127 transitions, 306 flow [2024-11-13 14:55:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:55,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:55,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-13 14:55:55,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2024-11-13 14:55:55,194 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 264 flow. Second operand 3 states and 386 transitions. [2024-11-13 14:55:55,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 127 transitions, 306 flow [2024-11-13 14:55:55,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 127 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:55:55,198 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 262 flow [2024-11-13 14:55:55,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2024-11-13 14:55:55,199 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -4 predicate places. [2024-11-13 14:55:55,199 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 262 flow [2024-11-13 14:55:55,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 14:55:55,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:55,200 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] [2024-11-13 14:55:55,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:55:55,200 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:55,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash 964582451, now seen corresponding path program 1 times [2024-11-13 14:55:55,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:55,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332261655] [2024-11-13 14:55:55,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:55,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:55,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:55,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332261655] [2024-11-13 14:55:55,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332261655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:55,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:55,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:55,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167128813] [2024-11-13 14:55:55,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:55,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:55,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2024-11-13 14:55:55,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 14:55:55,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:55,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2024-11-13 14:55:55,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:55,655 INFO L124 PetriNetUnfolderBase]: 84/532 cut-off events. [2024-11-13 14:55:55,655 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-13 14:55:55,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 532 events. 84/532 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2731 event pairs, 44 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 691. Up to 129 conditions per place. [2024-11-13 14:55:55,663 INFO L140 encePairwiseOnDemand]: 138/148 looper letters, 32 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-13 14:55:55,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 142 transitions, 372 flow [2024-11-13 14:55:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2024-11-13 14:55:55,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9121621621621622 [2024-11-13 14:55:55,669 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 262 flow. Second operand 3 states and 405 transitions. [2024-11-13 14:55:55,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 142 transitions, 372 flow [2024-11-13 14:55:55,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 142 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:55:55,678 INFO L231 Difference]: Finished difference. Result has 133 places, 132 transitions, 312 flow [2024-11-13 14:55:55,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=133, PETRI_TRANSITIONS=132} [2024-11-13 14:55:55,679 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -3 predicate places. [2024-11-13 14:55:55,679 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 132 transitions, 312 flow [2024-11-13 14:55:55,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 14:55:55,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:55,682 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 14:55:55,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:55:55,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:55,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1870093223, now seen corresponding path program 1 times [2024-11-13 14:55:55,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:55,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341570708] [2024-11-13 14:55:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:55,810 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 14:55:55,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:55,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341570708] [2024-11-13 14:55:55,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341570708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:55,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:55,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:55,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351329974] [2024-11-13 14:55:55,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:55,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:55,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:55,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:55,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:55,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 148 [2024-11-13 14:55:55,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 132 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 14:55:55,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:55,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 148 [2024-11-13 14:55:55,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:56,095 INFO L124 PetriNetUnfolderBase]: 103/622 cut-off events. [2024-11-13 14:55:56,096 INFO L125 PetriNetUnfolderBase]: For 149/163 co-relation queries the response was YES. [2024-11-13 14:55:56,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 622 events. 103/622 cut-off events. For 149/163 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3577 event pairs, 60 based on Foata normal form. 6/571 useless extension candidates. Maximal degree in co-relation 812. Up to 195 conditions per place. [2024-11-13 14:55:56,105 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 29 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-13 14:55:56,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 142 transitions, 415 flow [2024-11-13 14:55:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2024-11-13 14:55:56,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031531531531531 [2024-11-13 14:55:56,109 INFO L175 Difference]: Start difference. First operand has 133 places, 132 transitions, 312 flow. Second operand 3 states and 401 transitions. [2024-11-13 14:55:56,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 142 transitions, 415 flow [2024-11-13 14:55:56,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 142 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:55:56,116 INFO L231 Difference]: Finished difference. Result has 135 places, 137 transitions, 354 flow [2024-11-13 14:55:56,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=135, PETRI_TRANSITIONS=137} [2024-11-13 14:55:56,121 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -1 predicate places. [2024-11-13 14:55:56,122 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 137 transitions, 354 flow [2024-11-13 14:55:56,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 14:55:56,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:56,122 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] [2024-11-13 14:55:56,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:55:56,124 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:56,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:56,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1633885695, now seen corresponding path program 1 times [2024-11-13 14:55:56,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:56,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865262865] [2024-11-13 14:55:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:56,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:56,224 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 14:55:56,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:56,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865262865] [2024-11-13 14:55:56,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865262865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:56,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:56,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:56,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422773755] [2024-11-13 14:55:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:56,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:56,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:56,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:56,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 148 [2024-11-13 14:55:56,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 137 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 14:55:56,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:56,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 148 [2024-11-13 14:55:56,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:56,543 INFO L124 PetriNetUnfolderBase]: 122/744 cut-off events. [2024-11-13 14:55:56,543 INFO L125 PetriNetUnfolderBase]: For 279/287 co-relation queries the response was YES. [2024-11-13 14:55:56,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 744 events. 122/744 cut-off events. For 279/287 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4430 event pairs, 62 based on Foata normal form. 2/667 useless extension candidates. Maximal degree in co-relation 1025. Up to 220 conditions per place. [2024-11-13 14:55:56,550 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 30 selfloop transitions, 9 changer transitions 0/147 dead transitions. [2024-11-13 14:55:56,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 147 transitions, 467 flow [2024-11-13 14:55:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:56,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2024-11-13 14:55:56,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031531531531531 [2024-11-13 14:55:56,553 INFO L175 Difference]: Start difference. First operand has 135 places, 137 transitions, 354 flow. Second operand 3 states and 401 transitions. [2024-11-13 14:55:56,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 147 transitions, 467 flow [2024-11-13 14:55:56,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 147 transitions, 449 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:55:56,563 INFO L231 Difference]: Finished difference. Result has 137 places, 142 transitions, 408 flow [2024-11-13 14:55:56,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=137, PETRI_TRANSITIONS=142} [2024-11-13 14:55:56,565 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 1 predicate places. [2024-11-13 14:55:56,565 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 142 transitions, 408 flow [2024-11-13 14:55:56,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 14:55:56,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:56,566 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] [2024-11-13 14:55:56,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:55:56,567 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:56,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1101343532, now seen corresponding path program 1 times [2024-11-13 14:55:56,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:56,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41431080] [2024-11-13 14:55:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:56,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:56,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:56,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41431080] [2024-11-13 14:55:56,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41431080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:56,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:56,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:56,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222515746] [2024-11-13 14:55:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:56,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:56,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:56,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:56,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2024-11-13 14:55:56,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 142 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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 14:55:56,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:56,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2024-11-13 14:55:56,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:56,935 INFO L124 PetriNetUnfolderBase]: 102/701 cut-off events. [2024-11-13 14:55:56,936 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-13 14:55:56,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 701 events. 102/701 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4156 event pairs, 44 based on Foata normal form. 1/655 useless extension candidates. Maximal degree in co-relation 986. Up to 146 conditions per place. [2024-11-13 14:55:56,944 INFO L140 encePairwiseOnDemand]: 138/148 looper letters, 30 selfloop transitions, 6 changer transitions 6/157 dead transitions. [2024-11-13 14:55:56,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 157 transitions, 516 flow [2024-11-13 14:55:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2024-11-13 14:55:56,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2024-11-13 14:55:56,949 INFO L175 Difference]: Start difference. First operand has 137 places, 142 transitions, 408 flow. Second operand 3 states and 404 transitions. [2024-11-13 14:55:56,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 157 transitions, 516 flow [2024-11-13 14:55:56,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 157 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:55:56,958 INFO L231 Difference]: Finished difference. Result has 138 places, 141 transitions, 425 flow [2024-11-13 14:55:56,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=425, PETRI_PLACES=138, PETRI_TRANSITIONS=141} [2024-11-13 14:55:56,959 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 2 predicate places. [2024-11-13 14:55:56,959 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 141 transitions, 425 flow [2024-11-13 14:55:56,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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 14:55:56,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:56,960 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] [2024-11-13 14:55:56,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:55:56,962 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:56,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1466893399, now seen corresponding path program 1 times [2024-11-13 14:55:56,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:56,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440969125] [2024-11-13 14:55:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:56,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:57,283 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 14:55:57,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440969125] [2024-11-13 14:55:57,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440969125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:57,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:57,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:55:57,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770654997] [2024-11-13 14:55:57,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:57,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:57,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:57,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:57,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:57,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 148 [2024-11-13 14:55:57,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 141 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 14:55:57,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:57,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 148 [2024-11-13 14:55:57,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:57,415 INFO L124 PetriNetUnfolderBase]: 12/243 cut-off events. [2024-11-13 14:55:57,416 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-13 14:55:57,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 243 events. 12/243 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 584 event pairs, 4 based on Foata normal form. 8/241 useless extension candidates. Maximal degree in co-relation 186. Up to 27 conditions per place. [2024-11-13 14:55:57,417 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 8 selfloop transitions, 8 changer transitions 0/115 dead transitions. [2024-11-13 14:55:57,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 115 transitions, 319 flow [2024-11-13 14:55:57,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:57,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2024-11-13 14:55:57,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9234234234234234 [2024-11-13 14:55:57,421 INFO L175 Difference]: Start difference. First operand has 138 places, 141 transitions, 425 flow. Second operand 3 states and 410 transitions. [2024-11-13 14:55:57,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 115 transitions, 319 flow [2024-11-13 14:55:57,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 267 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-11-13 14:55:57,428 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 245 flow [2024-11-13 14:55:57,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2024-11-13 14:55:57,429 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -18 predicate places. [2024-11-13 14:55:57,430 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 245 flow [2024-11-13 14:55:57,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 14:55:57,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:57,431 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] [2024-11-13 14:55:57,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:55:57,431 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:57,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:57,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1088263011, now seen corresponding path program 1 times [2024-11-13 14:55:57,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:57,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473862098] [2024-11-13 14:55:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:57,544 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 14:55:57,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:57,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473862098] [2024-11-13 14:55:57,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473862098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:57,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:57,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:57,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727186372] [2024-11-13 14:55:57,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:57,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:57,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:57,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:57,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:57,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 148 [2024-11-13 14:55:57,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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 14:55:57,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:57,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 148 [2024-11-13 14:55:57,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:57,684 INFO L124 PetriNetUnfolderBase]: 19/274 cut-off events. [2024-11-13 14:55:57,684 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-13 14:55:57,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 274 events. 19/274 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 785 event pairs, 17 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 222. Up to 70 conditions per place. [2024-11-13 14:55:57,686 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 17 selfloop transitions, 2 changer transitions 4/113 dead transitions. [2024-11-13 14:55:57,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 286 flow [2024-11-13 14:55:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2024-11-13 14:55:57,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8783783783783784 [2024-11-13 14:55:57,689 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 245 flow. Second operand 3 states and 390 transitions. [2024-11-13 14:55:57,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 286 flow [2024-11-13 14:55:57,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:55:57,694 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 230 flow [2024-11-13 14:55:57,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2024-11-13 14:55:57,695 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -18 predicate places. [2024-11-13 14:55:57,697 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 230 flow [2024-11-13 14:55:57,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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 14:55:57,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:55:57,698 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] [2024-11-13 14:55:57,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:55:57,698 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-13 14:55:57,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash 892549253, now seen corresponding path program 1 times [2024-11-13 14:55:57,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:57,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484587710] [2024-11-13 14:55:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:57,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:57,806 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 14:55:57,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:57,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484587710] [2024-11-13 14:55:57,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484587710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:57,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:57,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:55:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756228773] [2024-11-13 14:55:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:57,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:57,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:57,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:57,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 148 [2024-11-13 14:55:57,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 14:55:57,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:55:57,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 148 [2024-11-13 14:55:57,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:55:57,924 INFO L124 PetriNetUnfolderBase]: 16/234 cut-off events. [2024-11-13 14:55:57,924 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-13 14:55:57,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 234 events. 16/234 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 579 event pairs, 14 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 207. Up to 59 conditions per place. [2024-11-13 14:55:57,925 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2024-11-13 14:55:57,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 108 transitions, 269 flow [2024-11-13 14:55:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:55:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2024-11-13 14:55:57,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8761261261261262 [2024-11-13 14:55:57,927 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 230 flow. Second operand 3 states and 389 transitions. [2024-11-13 14:55:57,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 108 transitions, 269 flow [2024-11-13 14:55:57,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 108 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:55:57,929 INFO L231 Difference]: Finished difference. Result has 113 places, 0 transitions, 0 flow [2024-11-13 14:55:57,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=113, PETRI_TRANSITIONS=0} [2024-11-13 14:55:57,931 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, -23 predicate places. [2024-11-13 14:55:57,931 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 0 transitions, 0 flow [2024-11-13 14:55:57,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 14:55:57,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-13 14:55:57,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-13 14:55:57,936 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-13 14:55:57,936 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-13 14:55:57,936 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining) [2024-11-13 14:55:57,936 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 22 remaining) [2024-11-13 14:55:57,936 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-13 14:55:57,937 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-13 14:55:57,937 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-13 14:55:57,937 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-13 14:55:57,937 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-13 14:55:57,938 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-13 14:55:57,938 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-13 14:55:57,938 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-13 14:55:57,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:55:57,938 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:55:57,946 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:55:57,946 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:55:57,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:55:57 BasicIcfg [2024-11-13 14:55:57,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:55:57,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:55:57,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:55:57,957 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:55:57,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:55:53" (3/4) ... [2024-11-13 14:55:57,960 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:55:57,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 14:55:57,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 14:55:57,971 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 14:55:57,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 14:55:57,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:55:57,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:55:58,079 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:55:58,079 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:55:58,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:55:58,080 INFO L158 Benchmark]: Toolchain (without parser) took 6250.34ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 91.0MB in the beginning and 46.9MB in the end (delta: 44.1MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2024-11-13 14:55:58,081 INFO L158 Benchmark]: CDTParser took 1.98ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:55:58,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.42ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 70.5MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:55:58,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.28ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:55:58,082 INFO L158 Benchmark]: Boogie Preprocessor took 29.76ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 67.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:55:58,084 INFO L158 Benchmark]: RCFGBuilder took 814.15ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 49.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:55:58,084 INFO L158 Benchmark]: TraceAbstraction took 4595.42ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 49.0MB in the beginning and 52.4MB in the end (delta: -3.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-11-13 14:55:58,085 INFO L158 Benchmark]: Witness Printer took 122.52ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 46.9MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:55:58,086 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.98ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.42ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 70.5MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.28ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.76ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 67.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 814.15ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 49.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4595.42ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 49.0MB in the beginning and 52.4MB in the end (delta: -3.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 122.52ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 46.9MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 22 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: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 345 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 494 IncrementalHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 61 mSDtfsCounter, 494 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=425occurred in iteration=6, InterpolantAutomatonStates: 27, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 533 NumberOfCodeBlocks, 533 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 524 ConstructedInterpolants, 0 QuantifiedInterpolants, 552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 14:55:58,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5fe7930-8f27-4666-8c8b-b903605ec378/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE