./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.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_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/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_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/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_5434d525-601c-4e0e-8e60-ef4360c731f2/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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:06:15,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:06:15,119 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:06:15,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:06:15,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:06:15,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:06:15,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:06:15,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:06:15,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:06:15,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:06:15,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:06:15,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:06:15,170 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:06:15,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:06:15,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:06:15,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:06:15,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:06:15,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:06:15,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:06:15,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:06:15,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:06:15,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:06:15,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:06:15,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:06:15,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:06:15,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:06:15,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:06:15,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:06:15,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:06:15,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:06:15,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:06:15,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:06:15,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:06:15,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:06:15,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:06:15,177 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_5434d525-601c-4e0e-8e60-ef4360c731f2/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 -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-11-13 15:06:15,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:06:15,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:06:15,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:06:15,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:06:15,516 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:06:15,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i Unable to find full path for "g++" [2024-11-13 15:06:17,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:06:17,875 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:06:17,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-13 15:06:17,898 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/data/efac7c8f6/9a290756abdb45e9ad2f34ade26f1ce1/FLAG0d3688866 [2024-11-13 15:06:17,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/data/efac7c8f6/9a290756abdb45e9ad2f34ade26f1ce1 [2024-11-13 15:06:17,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:06:17,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:06:17,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:06:17,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:06:17,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:06:17,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:06:17" (1/1) ... [2024-11-13 15:06:17,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecbdb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:17, skipping insertion in model container [2024-11-13 15:06:17,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:06:17" (1/1) ... [2024-11-13 15:06:18,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:06:18,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:06:18,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:06:18,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:06:18,855 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:06:18,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18 WrapperNode [2024-11-13 15:06:18,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:06:18,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:06:18,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:06:18,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:06:18,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:18,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:18,955 INFO L138 Inliner]: procedures = 274, calls = 143, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 368 [2024-11-13 15:06:18,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:06:18,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:06:18,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:06:18,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:06:18,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:18,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:18,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:18,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:19,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:19,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:19,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:19,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:19,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:06:19,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:06:19,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:06:19,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:06:19,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (1/1) ... [2024-11-13 15:06:19,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:06:19,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:19,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:06:19,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:06:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:06:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:06:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:06:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:06:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:06:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:06:19,123 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:06:19,316 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:06:19,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:06:20,235 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:06:20,235 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:06:20,276 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:06:20,276 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-13 15:06:20,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:06:20 BoogieIcfgContainer [2024-11-13 15:06:20,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:06:20,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:06:20,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:06:20,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:06:20,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:06:17" (1/3) ... [2024-11-13 15:06:20,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39293555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:06:20, skipping insertion in model container [2024-11-13 15:06:20,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:06:18" (2/3) ... [2024-11-13 15:06:20,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39293555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:06:20, skipping insertion in model container [2024-11-13 15:06:20,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:06:20" (3/3) ... [2024-11-13 15:06:20,290 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-11-13 15:06:20,310 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:06:20,312 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_76-tricky_address3_racefree.i that has 2 procedures, 354 locations, 1 initial locations, 13 loop locations, and 12 error locations. [2024-11-13 15:06:20,313 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:06:20,449 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:06:20,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 357 places, 387 transitions, 781 flow [2024-11-13 15:06:20,823 INFO L124 PetriNetUnfolderBase]: 48/516 cut-off events. [2024-11-13 15:06:20,830 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:06:20,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 516 events. 48/516 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1671 event pairs, 0 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 262. Up to 8 conditions per place. [2024-11-13 15:06:20,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 357 places, 387 transitions, 781 flow [2024-11-13 15:06:20,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 357 places, 387 transitions, 781 flow [2024-11-13 15:06:20,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:06:20,895 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;@3c0ece51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:06:20,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 15:06:20,932 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:06:20,933 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2024-11-13 15:06:20,933 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:06:20,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:20,935 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:20,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:20,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:20,941 INFO L85 PathProgramCache]: Analyzing trace with hash -336356561, now seen corresponding path program 1 times [2024-11-13 15:06:20,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:20,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712082078] [2024-11-13 15:06:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:21,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712082078] [2024-11-13 15:06:21,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712082078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:21,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:06:21,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:06:21,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253441971] [2024-11-13 15:06:21,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:21,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:06:21,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:06:21,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:06:21,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 387 [2024-11-13 15:06:21,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 387 transitions, 781 flow. Second operand has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:21,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:21,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 387 [2024-11-13 15:06:21,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:22,236 INFO L124 PetriNetUnfolderBase]: 85/1343 cut-off events. [2024-11-13 15:06:22,236 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:06:22,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 1343 events. 85/1343 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8284 event pairs, 72 based on Foata normal form. 205/1432 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-11-13 15:06:22,252 INFO L140 encePairwiseOnDemand]: 355/387 looper letters, 23 selfloop transitions, 2 changer transitions 1/355 dead transitions. [2024-11-13 15:06:22,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 355 transitions, 767 flow [2024-11-13 15:06:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:06:22,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:06:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1052 transitions. [2024-11-13 15:06:22,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061154177433247 [2024-11-13 15:06:22,282 INFO L175 Difference]: Start difference. First operand has 357 places, 387 transitions, 781 flow. Second operand 3 states and 1052 transitions. [2024-11-13 15:06:22,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 355 transitions, 767 flow [2024-11-13 15:06:22,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 355 transitions, 767 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:06:22,327 INFO L231 Difference]: Finished difference. Result has 356 places, 354 transitions, 725 flow [2024-11-13 15:06:22,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=725, PETRI_PLACES=356, PETRI_TRANSITIONS=354} [2024-11-13 15:06:22,333 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, -1 predicate places. [2024-11-13 15:06:22,334 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 354 transitions, 725 flow [2024-11-13 15:06:22,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:22,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:22,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:22,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:06:22,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:22,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:22,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1273876063, now seen corresponding path program 1 times [2024-11-13 15:06:22,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:22,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232418403] [2024-11-13 15:06:22,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:22,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:22,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:22,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232418403] [2024-11-13 15:06:22,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232418403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:22,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856893999] [2024-11-13 15:06:22,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:22,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:22,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:22,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:22,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:06:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:23,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:06:23,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:23,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:06:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856893999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:06:23,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:06:23,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:06:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408764219] [2024-11-13 15:06:23,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:06:23,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:06:23,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:06:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:06:23,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 387 [2024-11-13 15:06:23,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 354 transitions, 725 flow. Second operand has 10 states, 10 states have (on average 330.8) internal successors, (3308), 10 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:23,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:23,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 387 [2024-11-13 15:06:23,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:23,841 INFO L124 PetriNetUnfolderBase]: 85/1349 cut-off events. [2024-11-13 15:06:23,842 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 15:06:23,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 1349 events. 85/1349 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8329 event pairs, 72 based on Foata normal form. 2/1236 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-11-13 15:06:23,852 INFO L140 encePairwiseOnDemand]: 381/387 looper letters, 27 selfloop transitions, 9 changer transitions 0/362 dead transitions. [2024-11-13 15:06:23,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 362 transitions, 815 flow [2024-11-13 15:06:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:06:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:06:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2999 transitions. [2024-11-13 15:06:23,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8610393339075509 [2024-11-13 15:06:23,863 INFO L175 Difference]: Start difference. First operand has 356 places, 354 transitions, 725 flow. Second operand 9 states and 2999 transitions. [2024-11-13 15:06:23,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 362 transitions, 815 flow [2024-11-13 15:06:23,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 362 transitions, 813 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:06:23,875 INFO L231 Difference]: Finished difference. Result has 365 places, 360 transitions, 773 flow [2024-11-13 15:06:23,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=773, PETRI_PLACES=365, PETRI_TRANSITIONS=360} [2024-11-13 15:06:23,877 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, 8 predicate places. [2024-11-13 15:06:23,877 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 360 transitions, 773 flow [2024-11-13 15:06:23,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 330.8) internal successors, (3308), 10 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:23,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:23,879 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:23,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:06:24,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:24,083 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:24,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash -616820641, now seen corresponding path program 2 times [2024-11-13 15:06:24,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:24,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878543780] [2024-11-13 15:06:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:24,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:24,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:24,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878543780] [2024-11-13 15:06:24,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878543780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:24,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380632086] [2024-11-13 15:06:24,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:06:24,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:24,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:24,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:24,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:06:24,779 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:06:24,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:06:24,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 15:06:24,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:24,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 15:06:25,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-13 15:06:25,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:06:25,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-13 15:06:25,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:06:25,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-13 15:06:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 15:06:25,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:06:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380632086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:25,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:06:25,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-13 15:06:25,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850254214] [2024-11-13 15:06:25,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:25,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:06:25,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:25,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:06:25,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:06:25,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 387 [2024-11-13 15:06:25,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 360 transitions, 773 flow. Second operand has 8 states, 8 states have (on average 280.125) internal successors, (2241), 8 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:25,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:25,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 387 [2024-11-13 15:06:25,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:27,087 INFO L124 PetriNetUnfolderBase]: 1305/5091 cut-off events. [2024-11-13 15:06:27,087 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 15:06:27,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7713 conditions, 5091 events. 1305/5091 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 44689 event pairs, 1148 based on Foata normal form. 1/4624 useless extension candidates. Maximal degree in co-relation 7556. Up to 2434 conditions per place. [2024-11-13 15:06:27,112 INFO L140 encePairwiseOnDemand]: 375/387 looper letters, 127 selfloop transitions, 11 changer transitions 2/423 dead transitions. [2024-11-13 15:06:27,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 423 transitions, 1179 flow [2024-11-13 15:06:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:06:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:06:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2374 transitions. [2024-11-13 15:06:27,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7667958656330749 [2024-11-13 15:06:27,119 INFO L175 Difference]: Start difference. First operand has 365 places, 360 transitions, 773 flow. Second operand 8 states and 2374 transitions. [2024-11-13 15:06:27,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 423 transitions, 1179 flow [2024-11-13 15:06:27,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 423 transitions, 1173 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 15:06:27,128 INFO L231 Difference]: Finished difference. Result has 376 places, 367 transitions, 834 flow [2024-11-13 15:06:27,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=834, PETRI_PLACES=376, PETRI_TRANSITIONS=367} [2024-11-13 15:06:27,130 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, 19 predicate places. [2024-11-13 15:06:27,130 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 367 transitions, 834 flow [2024-11-13 15:06:27,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 280.125) internal successors, (2241), 8 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:27,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:27,132 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:27,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:06:27,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:27,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:27,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:27,337 INFO L85 PathProgramCache]: Analyzing trace with hash 512200890, now seen corresponding path program 1 times [2024-11-13 15:06:27,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:27,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552102981] [2024-11-13 15:06:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:27,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:06:27,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:27,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552102981] [2024-11-13 15:06:27,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552102981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:27,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100740305] [2024-11-13 15:06:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:27,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:27,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:06:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:27,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:06:27,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:06:28,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:06:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:06:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100740305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:06:28,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:06:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-13 15:06:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247341530] [2024-11-13 15:06:28,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:06:28,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 15:06:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 15:06:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:06:28,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 387 [2024-11-13 15:06:28,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 367 transitions, 834 flow. Second operand has 18 states, 18 states have (on average 330.94444444444446) internal successors, (5957), 18 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:28,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:28,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 387 [2024-11-13 15:06:28,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:28,893 INFO L124 PetriNetUnfolderBase]: 88/1358 cut-off events. [2024-11-13 15:06:28,893 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-11-13 15:06:28,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1664 conditions, 1358 events. 88/1358 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8462 event pairs, 74 based on Foata normal form. 4/1250 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-11-13 15:06:28,900 INFO L140 encePairwiseOnDemand]: 381/387 looper letters, 31 selfloop transitions, 21 changer transitions 0/385 dead transitions. [2024-11-13 15:06:28,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 385 transitions, 1026 flow [2024-11-13 15:06:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 15:06:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-13 15:06:28,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6965 transitions. [2024-11-13 15:06:28,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8570198105081827 [2024-11-13 15:06:28,915 INFO L175 Difference]: Start difference. First operand has 376 places, 367 transitions, 834 flow. Second operand 21 states and 6965 transitions. [2024-11-13 15:06:28,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 385 transitions, 1026 flow [2024-11-13 15:06:28,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 385 transitions, 1019 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:06:28,922 INFO L231 Difference]: Finished difference. Result has 399 places, 380 transitions, 957 flow [2024-11-13 15:06:28,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=957, PETRI_PLACES=399, PETRI_TRANSITIONS=380} [2024-11-13 15:06:28,924 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, 42 predicate places. [2024-11-13 15:06:28,924 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 380 transitions, 957 flow [2024-11-13 15:06:28,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 330.94444444444446) internal successors, (5957), 18 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:28,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:28,928 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:28,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:06:29,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:29,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:29,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1259498310, now seen corresponding path program 2 times [2024-11-13 15:06:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:29,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703466023] [2024-11-13 15:06:29,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:29,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:06:29,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703466023] [2024-11-13 15:06:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703466023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:29,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76005617] [2024-11-13 15:06:29,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:06:29,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:29,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:29,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:29,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:06:29,966 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:06:29,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:06:29,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 15:06:29,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:29,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-13 15:06:30,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-13 15:06:30,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:06:30,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 15:06:30,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:06:30,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-13 15:06:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-13 15:06:30,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:06:30,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76005617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:30,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:06:30,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-13 15:06:30,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729995252] [2024-11-13 15:06:30,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:30,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:06:30,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:06:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:06:30,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 387 [2024-11-13 15:06:30,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 380 transitions, 957 flow. Second operand has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:30,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:30,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 387 [2024-11-13 15:06:30,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:32,094 INFO L124 PetriNetUnfolderBase]: 1363/5195 cut-off events. [2024-11-13 15:06:32,094 INFO L125 PetriNetUnfolderBase]: For 286/290 co-relation queries the response was YES. [2024-11-13 15:06:32,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8383 conditions, 5195 events. 1363/5195 cut-off events. For 286/290 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 45345 event pairs, 925 based on Foata normal form. 33/4804 useless extension candidates. Maximal degree in co-relation 8142. Up to 2521 conditions per place. [2024-11-13 15:06:32,129 INFO L140 encePairwiseOnDemand]: 360/387 looper letters, 107 selfloop transitions, 92 changer transitions 0/496 dead transitions. [2024-11-13 15:06:32,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 496 transitions, 1609 flow [2024-11-13 15:06:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:06:32,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:06:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1874 transitions. [2024-11-13 15:06:32,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070628768303187 [2024-11-13 15:06:32,134 INFO L175 Difference]: Start difference. First operand has 399 places, 380 transitions, 957 flow. Second operand 6 states and 1874 transitions. [2024-11-13 15:06:32,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 496 transitions, 1609 flow [2024-11-13 15:06:32,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 496 transitions, 1585 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 15:06:32,151 INFO L231 Difference]: Finished difference. Result has 403 places, 464 transitions, 1541 flow [2024-11-13 15:06:32,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1541, PETRI_PLACES=403, PETRI_TRANSITIONS=464} [2024-11-13 15:06:32,153 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, 46 predicate places. [2024-11-13 15:06:32,153 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 464 transitions, 1541 flow [2024-11-13 15:06:32,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:32,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:32,156 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:32,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:06:32,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:32,360 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:32,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:32,361 INFO L85 PathProgramCache]: Analyzing trace with hash -389740839, now seen corresponding path program 1 times [2024-11-13 15:06:32,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:32,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100240809] [2024-11-13 15:06:32,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:32,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:06:33,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:33,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100240809] [2024-11-13 15:06:33,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100240809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:33,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938861771] [2024-11-13 15:06:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:33,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:33,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:33,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:06:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:33,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:06:33,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:06:33,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:06:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:06:33,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938861771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:06:33,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:06:33,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-13 15:06:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138790669] [2024-11-13 15:06:33,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:06:33,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 15:06:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:33,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 15:06:33,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:06:33,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 387 [2024-11-13 15:06:33,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 464 transitions, 1541 flow. Second operand has 23 states, 23 states have (on average 331.04347826086956) internal successors, (7614), 23 states have internal predecessors, (7614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:33,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:33,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 387 [2024-11-13 15:06:33,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:34,805 INFO L124 PetriNetUnfolderBase]: 207/1956 cut-off events. [2024-11-13 15:06:34,805 INFO L125 PetriNetUnfolderBase]: For 425/487 co-relation queries the response was YES. [2024-11-13 15:06:34,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3025 conditions, 1956 events. 207/1956 cut-off events. For 425/487 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14241 event pairs, 72 based on Foata normal form. 3/1817 useless extension candidates. Maximal degree in co-relation 2704. Up to 232 conditions per place. [2024-11-13 15:06:34,823 INFO L140 encePairwiseOnDemand]: 381/387 looper letters, 34 selfloop transitions, 30 changer transitions 0/481 dead transitions. [2024-11-13 15:06:34,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 481 transitions, 1791 flow [2024-11-13 15:06:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 15:06:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-13 15:06:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9937 transitions. [2024-11-13 15:06:34,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559000861326442 [2024-11-13 15:06:34,852 INFO L175 Difference]: Start difference. First operand has 403 places, 464 transitions, 1541 flow. Second operand 30 states and 9937 transitions. [2024-11-13 15:06:34,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 481 transitions, 1791 flow [2024-11-13 15:06:34,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 481 transitions, 1773 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-13 15:06:34,877 INFO L231 Difference]: Finished difference. Result has 436 places, 474 transitions, 1675 flow [2024-11-13 15:06:34,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=1523, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1675, PETRI_PLACES=436, PETRI_TRANSITIONS=474} [2024-11-13 15:06:34,882 INFO L277 CegarLoopForPetriNet]: 357 programPoint places, 79 predicate places. [2024-11-13 15:06:34,882 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 474 transitions, 1675 flow [2024-11-13 15:06:34,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 331.04347826086956) internal successors, (7614), 23 states have internal predecessors, (7614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:34,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:34,887 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:34,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:06:35,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 15:06:35,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-13 15:06:35,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:35,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1262759927, now seen corresponding path program 2 times [2024-11-13 15:06:35,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:35,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408720357] [2024-11-13 15:06:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:35,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:06:35,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:06:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:06:35,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:06:35,350 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:06:35,351 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-13 15:06:35,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-13 15:06:35,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-13 15:06:35,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-13 15:06:35,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-13 15:06:35,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-13 15:06:35,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-13 15:06:35,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-13 15:06:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-13 15:06:35,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:06:35,358 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-13 15:06:35,364 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:06:35,364 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:06:35,464 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:06:35,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 462 places, 505 transitions, 1026 flow [2024-11-13 15:06:35,701 INFO L124 PetriNetUnfolderBase]: 80/791 cut-off events. [2024-11-13 15:06:35,701 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-13 15:06:35,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 791 events. 80/791 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3371 event pairs, 0 based on Foata normal form. 0/675 useless extension candidates. Maximal degree in co-relation 518. Up to 12 conditions per place. [2024-11-13 15:06:35,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 462 places, 505 transitions, 1026 flow [2024-11-13 15:06:35,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 462 places, 505 transitions, 1026 flow [2024-11-13 15:06:35,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:06:35,728 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;@3c0ece51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:06:35,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-13 15:06:35,747 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:06:35,747 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2024-11-13 15:06:35,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:06:35,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:35,748 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:35,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:06:35,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash -756180024, now seen corresponding path program 1 times [2024-11-13 15:06:35,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:35,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578494388] [2024-11-13 15:06:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:35,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:35,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578494388] [2024-11-13 15:06:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578494388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:06:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:06:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576888306] [2024-11-13 15:06:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:35,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:06:35,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:35,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:06:35,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:06:35,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 505 [2024-11-13 15:06:35,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 505 transitions, 1026 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:35,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:35,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 505 [2024-11-13 15:06:35,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:38,823 INFO L124 PetriNetUnfolderBase]: 1580/11946 cut-off events. [2024-11-13 15:06:38,823 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-13 15:06:38,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14407 conditions, 11946 events. 1580/11946 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142616 event pairs, 1464 based on Foata normal form. 2927/13968 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-11-13 15:06:38,917 INFO L140 encePairwiseOnDemand]: 460/505 looper letters, 33 selfloop transitions, 2 changer transitions 1/458 dead transitions. [2024-11-13 15:06:38,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 458 transitions, 1002 flow [2024-11-13 15:06:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:06:38,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:06:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1357 transitions. [2024-11-13 15:06:38,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8957095709570957 [2024-11-13 15:06:38,921 INFO L175 Difference]: Start difference. First operand has 462 places, 505 transitions, 1026 flow. Second operand 3 states and 1357 transitions. [2024-11-13 15:06:38,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 458 transitions, 1002 flow [2024-11-13 15:06:38,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 458 transitions, 1002 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:06:38,930 INFO L231 Difference]: Finished difference. Result has 459 places, 457 transitions, 940 flow [2024-11-13 15:06:38,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=940, PETRI_PLACES=459, PETRI_TRANSITIONS=457} [2024-11-13 15:06:38,931 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -3 predicate places. [2024-11-13 15:06:38,931 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 457 transitions, 940 flow [2024-11-13 15:06:38,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:38,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:38,932 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:38,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:06:38,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:06:38,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash -754788065, now seen corresponding path program 1 times [2024-11-13 15:06:38,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:38,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824591237] [2024-11-13 15:06:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:38,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:39,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:39,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824591237] [2024-11-13 15:06:39,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824591237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:39,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857414808] [2024-11-13 15:06:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:39,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:39,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:39,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:39,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:06:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:39,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:06:39,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:39,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:06:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:39,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857414808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:06:39,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:06:39,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:06:39,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414117074] [2024-11-13 15:06:39,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:06:39,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:06:39,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:06:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:06:39,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 505 [2024-11-13 15:06:39,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 457 transitions, 940 flow. Second operand has 10 states, 10 states have (on average 424.8) internal successors, (4248), 10 states have internal predecessors, (4248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:39,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:39,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 505 [2024-11-13 15:06:39,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:06:42,915 INFO L124 PetriNetUnfolderBase]: 1580/11952 cut-off events. [2024-11-13 15:06:42,916 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-13 15:06:42,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14432 conditions, 11952 events. 1580/11952 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142416 event pairs, 1464 based on Foata normal form. 2/11050 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-11-13 15:06:43,037 INFO L140 encePairwiseOnDemand]: 499/505 looper letters, 37 selfloop transitions, 9 changer transitions 0/465 dead transitions. [2024-11-13 15:06:43,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 465 transitions, 1050 flow [2024-11-13 15:06:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:06:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:06:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3855 transitions. [2024-11-13 15:06:43,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8481848184818482 [2024-11-13 15:06:43,048 INFO L175 Difference]: Start difference. First operand has 459 places, 457 transitions, 940 flow. Second operand 9 states and 3855 transitions. [2024-11-13 15:06:43,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 465 transitions, 1050 flow [2024-11-13 15:06:43,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 465 transitions, 1048 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:06:43,062 INFO L231 Difference]: Finished difference. Result has 468 places, 463 transitions, 988 flow [2024-11-13 15:06:43,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=988, PETRI_PLACES=468, PETRI_TRANSITIONS=463} [2024-11-13 15:06:43,066 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, 6 predicate places. [2024-11-13 15:06:43,067 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 463 transitions, 988 flow [2024-11-13 15:06:43,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 424.8) internal successors, (4248), 10 states have internal predecessors, (4248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:43,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:06:43,070 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:06:43,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:06:43,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:43,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-13 15:06:43,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:06:43,274 INFO L85 PathProgramCache]: Analyzing trace with hash 105322175, now seen corresponding path program 2 times [2024-11-13 15:06:43,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:06:43,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748701125] [2024-11-13 15:06:43,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:06:43,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:06:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:06:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:06:43,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:06:43,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748701125] [2024-11-13 15:06:43,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748701125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:06:43,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187246867] [2024-11-13 15:06:43,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:06:43,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:06:43,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:06:43,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:06:43,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5434d525-601c-4e0e-8e60-ef4360c731f2/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:06:43,681 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:06:43,681 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:06:43,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 15:06:43,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:06:43,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 15:06:43,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-13 15:06:43,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:06:43,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-13 15:06:43,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:06:43,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-13 15:06:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 15:06:43,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:06:43,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187246867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:06:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:06:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-13 15:06:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184667945] [2024-11-13 15:06:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:06:43,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:06:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:06:43,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:06:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:06:44,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 505 [2024-11-13 15:06:44,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 463 transitions, 988 flow. Second operand has 8 states, 8 states have (on average 354.125) internal successors, (2833), 8 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:06:44,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:06:44,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 505 [2024-11-13 15:06:44,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand