./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2b-join.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_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/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_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/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_09720cf5-d399-44f3-8998-20b6f109cda6/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 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:46:50,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:46:51,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 12:46:51,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:46:51,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:46:51,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:46:51,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:46:51,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:46:51,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:46:51,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:46:51,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:46:51,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:46:51,107 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:46:51,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:46:51,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:46:51,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:46:51,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:46:51,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:46:51,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:46:51,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:46:51,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:46:51,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:46:51,110 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 12:46:51,110 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:46:51,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:46:51,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:46:51,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:46:51,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:46:51,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:46:51,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:46:51,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:46:51,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:51,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:46:51,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:46:51,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:46:51,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:46:51,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:46:51,112 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:46:51,112 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:46:51,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:46:51,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:46:51,114 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_09720cf5-d399-44f3-8998-20b6f109cda6/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 -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2024-11-13 12:46:51,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:46:51,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:46:51,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:46:51,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:46:51,545 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:46:51,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/ldv-races/race-1_2b-join.i Unable to find full path for "g++" [2024-11-13 12:46:53,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:46:54,421 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:46:54,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2024-11-13 12:46:54,466 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/data/04cc3f93c/1e7e612e775f422db123485797d94884/FLAG8f2a69faf [2024-11-13 12:46:54,487 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/data/04cc3f93c/1e7e612e775f422db123485797d94884 [2024-11-13 12:46:54,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:46:54,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:46:54,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:54,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:46:54,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:46:54,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:54" (1/1) ... [2024-11-13 12:46:54,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5142458d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:54, skipping insertion in model container [2024-11-13 12:46:54,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:54" (1/1) ... [2024-11-13 12:46:54,566 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:46:55,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:55,574 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:46:55,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:55,868 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:46:55,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55 WrapperNode [2024-11-13 12:46:55,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:55,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:55,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:46:55,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:46:55,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,938 INFO L138 Inliner]: procedures = 482, calls = 28, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 122 [2024-11-13 12:46:55,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:55,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:46:55,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:46:55,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:46:55,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:55,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:56,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:46:56,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:46:56,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:46:56,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:46:56,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (1/1) ... [2024-11-13 12:46:56,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:56,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:56,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:46:56,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:46:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:46:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 12:46:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:46:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 12:46:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:46:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:46:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:46:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 12:46:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 12:46:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 12:46:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 12:46:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 12:46:56,097 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 12:46:56,475 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:46:56,478 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:46:56,834 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:46:56,835 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:46:56,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:46:56,876 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:46:56,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:56 BoogieIcfgContainer [2024-11-13 12:46:56,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:46:56,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:46:56,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:46:56,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:46:56,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:46:54" (1/3) ... [2024-11-13 12:46:56,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7639848f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:56, skipping insertion in model container [2024-11-13 12:46:56,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:55" (2/3) ... [2024-11-13 12:46:56,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7639848f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:56, skipping insertion in model container [2024-11-13 12:46:56,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:56" (3/3) ... [2024-11-13 12:46:56,892 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2024-11-13 12:46:56,915 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:46:56,917 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_2b-join.i that has 2 procedures, 157 locations, 1 initial locations, 0 loop locations, and 11 error locations. [2024-11-13 12:46:56,918 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:46:57,027 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 12:46:57,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 166 transitions, 339 flow [2024-11-13 12:46:57,190 INFO L124 PetriNetUnfolderBase]: 9/181 cut-off events. [2024-11-13 12:46:57,192 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:46:57,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 181 events. 9/181 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 97. Up to 3 conditions per place. [2024-11-13 12:46:57,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 166 transitions, 339 flow [2024-11-13 12:46:57,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 148 transitions, 302 flow [2024-11-13 12:46:57,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:46:57,253 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;@1940b756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:46:57,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-13 12:46:57,270 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:46:57,270 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-13 12:46:57,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:46:57,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:57,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:46:57,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:57,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:57,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2059192393, now seen corresponding path program 1 times [2024-11-13 12:46:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:57,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074405330] [2024-11-13 12:46:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:57,814 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 12:46:57,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:57,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074405330] [2024-11-13 12:46:57,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074405330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:57,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:57,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070477746] [2024-11-13 12:46:57,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:57,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:57,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:57,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 166 [2024-11-13 12:46:57,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 148 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 12:46:57,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:46:57,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 166 [2024-11-13 12:46:57,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:46:58,020 INFO L124 PetriNetUnfolderBase]: 9/196 cut-off events. [2024-11-13 12:46:58,020 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 12:46:58,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 196 events. 9/196 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 507 event pairs, 9 based on Foata normal form. 8/180 useless extension candidates. Maximal degree in co-relation 120. Up to 36 conditions per place. [2024-11-13 12:46:58,023 INFO L140 encePairwiseOnDemand]: 157/166 looper letters, 16 selfloop transitions, 2 changer transitions 6/135 dead transitions. [2024-11-13 12:46:58,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 135 transitions, 312 flow [2024-11-13 12:46:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:58,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:46:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2024-11-13 12:46:58,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8634538152610441 [2024-11-13 12:46:58,044 INFO L175 Difference]: Start difference. First operand has 145 places, 148 transitions, 302 flow. Second operand 3 states and 430 transitions. [2024-11-13 12:46:58,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 135 transitions, 312 flow [2024-11-13 12:46:58,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 135 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:46:58,055 INFO L231 Difference]: Finished difference. Result has 138 places, 129 transitions, 264 flow [2024-11-13 12:46:58,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=138, PETRI_TRANSITIONS=129} [2024-11-13 12:46:58,066 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, -7 predicate places. [2024-11-13 12:46:58,066 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 129 transitions, 264 flow [2024-11-13 12:46:58,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 12:46:58,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:58,067 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] [2024-11-13 12:46:58,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:46:58,068 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:58,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:58,068 INFO L85 PathProgramCache]: Analyzing trace with hash -382337500, now seen corresponding path program 1 times [2024-11-13 12:46:58,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:58,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418607080] [2024-11-13 12:46:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:58,295 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 12:46:58,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:58,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418607080] [2024-11-13 12:46:58,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418607080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:58,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:58,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:58,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470043687] [2024-11-13 12:46:58,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:58,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:58,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 166 [2024-11-13 12:46:58,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 129 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 12:46:58,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:46:58,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 166 [2024-11-13 12:46:58,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:46:58,491 INFO L124 PetriNetUnfolderBase]: 11/274 cut-off events. [2024-11-13 12:46:58,492 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-11-13 12:46:58,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 274 events. 11/274 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 913 event pairs, 4 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 289. Up to 22 conditions per place. [2024-11-13 12:46:58,494 INFO L140 encePairwiseOnDemand]: 153/166 looper letters, 15 selfloop transitions, 8 changer transitions 3/133 dead transitions. [2024-11-13 12:46:58,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 133 transitions, 321 flow [2024-11-13 12:46:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:46:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2024-11-13 12:46:58,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.857429718875502 [2024-11-13 12:46:58,498 INFO L175 Difference]: Start difference. First operand has 138 places, 129 transitions, 264 flow. Second operand 3 states and 427 transitions. [2024-11-13 12:46:58,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 133 transitions, 321 flow [2024-11-13 12:46:58,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 133 transitions, 317 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:46:58,507 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 298 flow [2024-11-13 12:46:58,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2024-11-13 12:46:58,509 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, -14 predicate places. [2024-11-13 12:46:58,509 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 298 flow [2024-11-13 12:46:58,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 12:46:58,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:58,510 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] [2024-11-13 12:46:58,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:46:58,511 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:58,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash 530012179, now seen corresponding path program 1 times [2024-11-13 12:46:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:58,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889978292] [2024-11-13 12:46:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:58,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:58,629 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 12:46:58,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:58,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889978292] [2024-11-13 12:46:58,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889978292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:58,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:58,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:58,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442255038] [2024-11-13 12:46:58,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:58,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:58,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:58,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:58,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:58,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 166 [2024-11-13 12:46:58,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 12:46:58,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:46:58,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 166 [2024-11-13 12:46:58,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:46:58,774 INFO L124 PetriNetUnfolderBase]: 12/244 cut-off events. [2024-11-13 12:46:58,775 INFO L125 PetriNetUnfolderBase]: For 43/44 co-relation queries the response was YES. [2024-11-13 12:46:58,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 244 events. 12/244 cut-off events. For 43/44 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 786 event pairs, 8 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 48. Up to 44 conditions per place. [2024-11-13 12:46:58,777 INFO L140 encePairwiseOnDemand]: 163/166 looper letters, 18 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2024-11-13 12:46:58,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 126 transitions, 336 flow [2024-11-13 12:46:58,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:46:58,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2024-11-13 12:46:58,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493975903614458 [2024-11-13 12:46:58,781 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 298 flow. Second operand 3 states and 423 transitions. [2024-11-13 12:46:58,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 126 transitions, 336 flow [2024-11-13 12:46:58,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 126 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:46:58,785 INFO L231 Difference]: Finished difference. Result has 127 places, 126 transitions, 284 flow [2024-11-13 12:46:58,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=127, PETRI_TRANSITIONS=126} [2024-11-13 12:46:58,787 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, -18 predicate places. [2024-11-13 12:46:58,787 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 126 transitions, 284 flow [2024-11-13 12:46:58,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 12:46:58,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:58,788 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] [2024-11-13 12:46:58,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:46:58,788 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:58,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:58,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1013985989, now seen corresponding path program 1 times [2024-11-13 12:46:58,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:58,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060713770] [2024-11-13 12:46:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:58,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:58,963 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 12:46:58,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:58,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060713770] [2024-11-13 12:46:58,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060713770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:58,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:58,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295203245] [2024-11-13 12:46:58,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:58,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:58,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:58,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:58,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 166 [2024-11-13 12:46:58,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 12:46:58,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:46:58,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 166 [2024-11-13 12:46:58,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:46:59,048 INFO L124 PetriNetUnfolderBase]: 12/275 cut-off events. [2024-11-13 12:46:59,049 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 12:46:59,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 275 events. 12/275 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 954 event pairs, 4 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 302. Up to 31 conditions per place. [2024-11-13 12:46:59,051 INFO L140 encePairwiseOnDemand]: 163/166 looper letters, 11 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2024-11-13 12:46:59,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 127 transitions, 312 flow [2024-11-13 12:46:59,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:46:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2024-11-13 12:46:59,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8835341365461847 [2024-11-13 12:46:59,054 INFO L175 Difference]: Start difference. First operand has 127 places, 126 transitions, 284 flow. Second operand 3 states and 440 transitions. [2024-11-13 12:46:59,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 127 transitions, 312 flow [2024-11-13 12:46:59,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 127 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:46:59,058 INFO L231 Difference]: Finished difference. Result has 126 places, 125 transitions, 282 flow [2024-11-13 12:46:59,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=126, PETRI_TRANSITIONS=125} [2024-11-13 12:46:59,059 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, -19 predicate places. [2024-11-13 12:46:59,060 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 125 transitions, 282 flow [2024-11-13 12:46:59,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 12:46:59,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:59,060 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] [2024-11-13 12:46:59,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:46:59,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:59,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash -359756719, now seen corresponding path program 1 times [2024-11-13 12:46:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320714483] [2024-11-13 12:46:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:59,193 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 12:46:59,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:59,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320714483] [2024-11-13 12:46:59,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320714483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:59,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:59,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:59,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089154448] [2024-11-13 12:46:59,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:59,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:59,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:59,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:59,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:59,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 166 [2024-11-13 12:46:59,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 12:46:59,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:46:59,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 166 [2024-11-13 12:46:59,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:46:59,330 INFO L124 PetriNetUnfolderBase]: 16/285 cut-off events. [2024-11-13 12:46:59,330 INFO L125 PetriNetUnfolderBase]: For 23/34 co-relation queries the response was YES. [2024-11-13 12:46:59,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 285 events. 16/285 cut-off events. For 23/34 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1085 event pairs, 7 based on Foata normal form. 2/260 useless extension candidates. Maximal degree in co-relation 284. Up to 48 conditions per place. [2024-11-13 12:46:59,332 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 17 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2024-11-13 12:46:59,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 129 transitions, 340 flow [2024-11-13 12:46:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:46:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 432 transitions. [2024-11-13 12:46:59,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674698795180723 [2024-11-13 12:46:59,336 INFO L175 Difference]: Start difference. First operand has 126 places, 125 transitions, 282 flow. Second operand 3 states and 432 transitions. [2024-11-13 12:46:59,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 129 transitions, 340 flow [2024-11-13 12:46:59,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 129 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:46:59,341 INFO L231 Difference]: Finished difference. Result has 128 places, 129 transitions, 324 flow [2024-11-13 12:46:59,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=128, PETRI_TRANSITIONS=129} [2024-11-13 12:46:59,346 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, -17 predicate places. [2024-11-13 12:46:59,346 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 129 transitions, 324 flow [2024-11-13 12:46:59,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 12:46:59,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:59,347 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] [2024-11-13 12:46:59,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:46:59,347 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:59,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:59,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1249142108, now seen corresponding path program 1 times [2024-11-13 12:46:59,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:59,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616942355] [2024-11-13 12:46:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:59,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:59,509 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 12:46:59,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:59,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616942355] [2024-11-13 12:46:59,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616942355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:59,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:59,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:59,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334285127] [2024-11-13 12:46:59,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:59,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:59,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:59,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:59,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 166 [2024-11-13 12:46:59,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 129 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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 12:46:59,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:46:59,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 166 [2024-11-13 12:46:59,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:46:59,733 INFO L124 PetriNetUnfolderBase]: 33/399 cut-off events. [2024-11-13 12:46:59,734 INFO L125 PetriNetUnfolderBase]: For 80/84 co-relation queries the response was YES. [2024-11-13 12:46:59,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 399 events. 33/399 cut-off events. For 80/84 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1926 event pairs, 13 based on Foata normal form. 2/369 useless extension candidates. Maximal degree in co-relation 199. Up to 72 conditions per place. [2024-11-13 12:46:59,738 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 22 selfloop transitions, 6 changer transitions 0/134 dead transitions. [2024-11-13 12:46:59,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 134 transitions, 396 flow [2024-11-13 12:46:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:46:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2024-11-13 12:46:59,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8614457831325302 [2024-11-13 12:46:59,741 INFO L175 Difference]: Start difference. First operand has 128 places, 129 transitions, 324 flow. Second operand 3 states and 429 transitions. [2024-11-13 12:46:59,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 134 transitions, 396 flow [2024-11-13 12:46:59,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 134 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:46:59,747 INFO L231 Difference]: Finished difference. Result has 130 places, 132 transitions, 354 flow [2024-11-13 12:46:59,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=130, PETRI_TRANSITIONS=132} [2024-11-13 12:46:59,748 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, -15 predicate places. [2024-11-13 12:46:59,748 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 132 transitions, 354 flow [2024-11-13 12:46:59,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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 12:46:59,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:46:59,750 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] [2024-11-13 12:46:59,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:46:59,750 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-13 12:46:59,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:59,751 INFO L85 PathProgramCache]: Analyzing trace with hash -385035608, now seen corresponding path program 1 times [2024-11-13 12:46:59,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:59,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724683253] [2024-11-13 12:46:59,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:59,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:46:59,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:46:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:46:59,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:46:59,858 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:46:59,859 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2024-11-13 12:46:59,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-13 12:46:59,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-13 12:46:59,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-13 12:46:59,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-13 12:46:59,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-13 12:46:59,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-13 12:46:59,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-13 12:46:59,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-13 12:46:59,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-13 12:46:59,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-13 12:46:59,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-13 12:46:59,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 13 remaining) [2024-11-13 12:46:59,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:46:59,865 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:46:59,920 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:46:59,920 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:46:59,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:46:59 BasicIcfg [2024-11-13 12:46:59,931 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:46:59,931 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:46:59,931 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:46:59,932 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:46:59,932 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:56" (3/4) ... [2024-11-13 12:46:59,934 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 12:47:00,006 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:47:00,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:47:00,009 INFO L158 Benchmark]: Toolchain (without parser) took 5515.97ms. Allocated memory is still 142.6MB. Free memory was 115.1MB in the beginning and 77.9MB in the end (delta: 37.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-11-13 12:47:00,010 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:00,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1375.78ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 60.6MB in the end (delta: 54.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 12:47:00,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.87ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 57.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:00,011 INFO L158 Benchmark]: Boogie Preprocessor took 63.01ms. Allocated memory is still 142.6MB. Free memory was 57.5MB in the beginning and 55.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:00,012 INFO L158 Benchmark]: RCFGBuilder took 873.59ms. Allocated memory is still 142.6MB. Free memory was 55.5MB in the beginning and 101.3MB in the end (delta: -45.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-13 12:47:00,013 INFO L158 Benchmark]: TraceAbstraction took 3047.95ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 81.7MB in the end (delta: 18.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-11-13 12:47:00,014 INFO L158 Benchmark]: Witness Printer took 75.32ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 77.9MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:00,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1375.78ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 60.6MB in the end (delta: 54.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.87ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 57.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.01ms. Allocated memory is still 142.6MB. Free memory was 57.5MB in the beginning and 55.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 873.59ms. Allocated memory is still 142.6MB. Free memory was 55.5MB in the beginning and 101.3MB in the end (delta: -45.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3047.95ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 81.7MB in the end (delta: 18.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Witness Printer took 75.32ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 77.9MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1=0] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1=0] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1=0] [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1=0] [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1=0] [L1708] 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [mutex={3:0}, pdev=1, t1=-1] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1709] 0 pdev = 2 VAL [\old(arg)={0:0}, mutex={3:0}, pdev=2, t1=-1] [L1699] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1709] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1699] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] Now there is a data race on ~pdev~0 between C: pdev = 2 [1709] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 172 locations, 13 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: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 326 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 67 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=6, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 12:47:00,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09720cf5-d399-44f3-8998-20b6f109cda6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE