./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC --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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:29:10,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:29:10,374 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 01:29:10,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:29:10,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:29:10,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:29:10,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:29:10,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:29:10,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:29:10,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:29:10,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:29:10,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:29:10,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:29:10,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:29:10,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:29:10,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:29:10,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:29:10,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:29:10,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:29:10,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:29:10,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:29:10,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:29:10,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:10,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:10,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:29:10,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:29:10,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:29:10,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:29:10,431 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_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC 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 -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2024-11-24 01:29:10,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:29:10,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:29:10,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:29:10,733 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:29:10,734 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:29:10,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-24 01:29:13,661 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/data/f774a560a/498acc23746546f281a0f0e234f9f4c4/FLAGb7464d6e0 [2024-11-24 01:29:14,063 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:29:14,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-24 01:29:14,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/data/f774a560a/498acc23746546f281a0f0e234f9f4c4/FLAGb7464d6e0 [2024-11-24 01:29:14,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/data/f774a560a/498acc23746546f281a0f0e234f9f4c4 [2024-11-24 01:29:14,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:29:14,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:29:14,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:14,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:29:14,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:29:14,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bcfcbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14, skipping insertion in model container [2024-11-24 01:29:14,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:29:14,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:29:14,667 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:29:14,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:29:14,794 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:29:14,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14 WrapperNode [2024-11-24 01:29:14,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:14,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:29:14,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:29:14,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:29:14,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,855 INFO L138 Inliner]: procedures = 172, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2024-11-24 01:29:14,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:29:14,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:29:14,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:29:14,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:29:14,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,882 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,902 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:29:14,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:29:14,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:29:14,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:29:14,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (1/1) ... [2024-11-24 01:29:14,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:14,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:14,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:29:14,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce48aa0e-cdd9-4964-a3a6-6991743d8d81/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:29:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:29:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:29:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:29:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:29:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:29:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 01:29:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 01:29:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:29:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-24 01:29:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:29:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:29:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:29:14,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:29:14,987 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:29:15,154 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:29:15,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:29:15,441 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:29:15,442 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:29:15,485 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:29:15,486 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-24 01:29:15,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:15 BoogieIcfgContainer [2024-11-24 01:29:15,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:29:15,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:29:15,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:29:15,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:29:15,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:29:14" (1/3) ... [2024-11-24 01:29:15,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20655ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:29:15, skipping insertion in model container [2024-11-24 01:29:15,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:14" (2/3) ... [2024-11-24 01:29:15,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20655ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:29:15, skipping insertion in model container [2024-11-24 01:29:15,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:15" (3/3) ... [2024-11-24 01:29:15,501 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2024-11-24 01:29:15,517 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:29:15,519 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_41-trylock_racefree.i that has 2 procedures, 129 locations, 1 initial locations, 7 loop locations, and 7 error locations. [2024-11-24 01:29:15,519 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:29:15,592 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 01:29:15,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 144 transitions, 295 flow [2024-11-24 01:29:15,742 INFO L124 PetriNetUnfolderBase]: 23/207 cut-off events. [2024-11-24 01:29:15,744 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 01:29:15,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 207 events. 23/207 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 665 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 113. Up to 6 conditions per place. [2024-11-24 01:29:15,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 144 transitions, 295 flow [2024-11-24 01:29:15,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 144 transitions, 295 flow [2024-11-24 01:29:15,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:29:15,779 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;@6b7782c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:29:15,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-24 01:29:15,806 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:29:15,806 INFO L124 PetriNetUnfolderBase]: 4/48 cut-off events. [2024-11-24 01:29:15,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:29:15,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:15,810 INFO L206 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] [2024-11-24 01:29:15,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 01:29:15,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash -234290657, now seen corresponding path program 1 times [2024-11-24 01:29:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638200445] [2024-11-24 01:29:15,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:16,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:16,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638200445] [2024-11-24 01:29:16,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638200445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:16,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:16,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:16,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760925666] [2024-11-24 01:29:16,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:16,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:29:16,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:16,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:29:16,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:29:16,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2024-11-24 01:29:16,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 144 transitions, 295 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 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) [2024-11-24 01:29:16,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:16,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2024-11-24 01:29:16,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:16,253 INFO L124 PetriNetUnfolderBase]: 27/367 cut-off events. [2024-11-24 01:29:16,254 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:29:16,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 367 events. 27/367 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1460 event pairs, 24 based on Foata normal form. 54/383 useless extension candidates. Maximal degree in co-relation 340. Up to 65 conditions per place. [2024-11-24 01:29:16,259 INFO L140 encePairwiseOnDemand]: 131/144 looper letters, 12 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2024-11-24 01:29:16,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 289 flow [2024-11-24 01:29:16,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:29:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-24 01:29:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2024-11-24 01:29:16,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.90625 [2024-11-24 01:29:16,279 INFO L175 Difference]: Start difference. First operand has 132 places, 144 transitions, 295 flow. Second operand 2 states and 261 transitions. [2024-11-24 01:29:16,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 289 flow [2024-11-24 01:29:16,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 129 transitions, 289 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:29:16,294 INFO L231 Difference]: Finished difference. Result has 131 places, 129 transitions, 265 flow [2024-11-24 01:29:16,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=265, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2024-11-24 01:29:16,302 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, -1 predicate places. [2024-11-24 01:29:16,303 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 265 flow [2024-11-24 01:29:16,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 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) [2024-11-24 01:29:16,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:16,304 INFO L206 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] [2024-11-24 01:29:16,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:29:16,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 01:29:16,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1843447968, now seen corresponding path program 1 times [2024-11-24 01:29:16,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:16,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344279001] [2024-11-24 01:29:16,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:16,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:16,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344279001] [2024-11-24 01:29:16,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344279001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:16,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:16,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:16,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283748956] [2024-11-24 01:29:16,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:16,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:16,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:16,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:16,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:16,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 144 [2024-11-24 01:29:16,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2024-11-24 01:29:16,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:16,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 144 [2024-11-24 01:29:16,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:16,713 INFO L124 PetriNetUnfolderBase]: 55/546 cut-off events. [2024-11-24 01:29:16,713 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:29:16,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 546 events. 55/546 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2685 event pairs, 0 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 664. Up to 108 conditions per place. [2024-11-24 01:29:16,717 INFO L140 encePairwiseOnDemand]: 141/144 looper letters, 22 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2024-11-24 01:29:16,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 135 transitions, 325 flow [2024-11-24 01:29:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-24 01:29:16,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8356481481481481 [2024-11-24 01:29:16,721 INFO L175 Difference]: Start difference. First operand has 131 places, 129 transitions, 265 flow. Second operand 3 states and 361 transitions. [2024-11-24 01:29:16,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 135 transitions, 325 flow [2024-11-24 01:29:16,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 135 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:29:16,725 INFO L231 Difference]: Finished difference. Result has 134 places, 129 transitions, 273 flow [2024-11-24 01:29:16,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=134, PETRI_TRANSITIONS=129} [2024-11-24 01:29:16,726 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, 2 predicate places. [2024-11-24 01:29:16,727 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 129 transitions, 273 flow [2024-11-24 01:29:16,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2024-11-24 01:29:16,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:16,727 INFO L206 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] [2024-11-24 01:29:16,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:29:16,728 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 01:29:16,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -46109310, now seen corresponding path program 1 times [2024-11-24 01:29:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:16,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767670966] [2024-11-24 01:29:16,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:16,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:17,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767670966] [2024-11-24 01:29:17,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767670966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:17,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:17,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:29:17,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162530409] [2024-11-24 01:29:17,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:17,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:29:17,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:17,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:29:17,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:29:17,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 144 [2024-11-24 01:29:17,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2024-11-24 01:29:17,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:17,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 144 [2024-11-24 01:29:17,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:17,888 INFO L124 PetriNetUnfolderBase]: 115/598 cut-off events. [2024-11-24 01:29:17,889 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-24 01:29:17,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 598 events. 115/598 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3392 event pairs, 12 based on Foata normal form. 0/549 useless extension candidates. Maximal degree in co-relation 880. Up to 181 conditions per place. [2024-11-24 01:29:17,894 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 48 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2024-11-24 01:29:17,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 152 transitions, 425 flow [2024-11-24 01:29:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:29:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:29:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2024-11-24 01:29:17,902 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-11-24 01:29:17,902 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 273 flow. Second operand 6 states and 654 transitions. [2024-11-24 01:29:17,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 152 transitions, 425 flow [2024-11-24 01:29:17,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 152 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:29:17,907 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 277 flow [2024-11-24 01:29:17,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2024-11-24 01:29:17,910 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, 4 predicate places. [2024-11-24 01:29:17,910 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 277 flow [2024-11-24 01:29:17,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2024-11-24 01:29:17,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:17,911 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:17,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:29:17,912 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 01:29:17,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash 38077828, now seen corresponding path program 1 times [2024-11-24 01:29:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:17,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955524083] [2024-11-24 01:29:17,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:17,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:17,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955524083] [2024-11-24 01:29:17,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955524083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:17,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:17,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:17,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893821652] [2024-11-24 01:29:17,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:17,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:17,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:17,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:17,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:18,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2024-11-24 01:29:18,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-24 01:29:18,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:18,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2024-11-24 01:29:18,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:18,230 INFO L124 PetriNetUnfolderBase]: 92/791 cut-off events. [2024-11-24 01:29:18,230 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 01:29:18,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 791 events. 92/791 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4725 event pairs, 30 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 1022. Up to 125 conditions per place. [2024-11-24 01:29:18,236 INFO L140 encePairwiseOnDemand]: 135/144 looper letters, 30 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2024-11-24 01:29:18,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 378 flow [2024-11-24 01:29:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2024-11-24 01:29:18,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-24 01:29:18,239 INFO L175 Difference]: Start difference. First operand has 136 places, 128 transitions, 277 flow. Second operand 3 states and 360 transitions. [2024-11-24 01:29:18,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 378 flow [2024-11-24 01:29:18,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 141 transitions, 368 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:29:18,246 INFO L231 Difference]: Finished difference. Result has 133 places, 130 transitions, 305 flow [2024-11-24 01:29:18,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=133, PETRI_TRANSITIONS=130} [2024-11-24 01:29:18,247 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, 1 predicate places. [2024-11-24 01:29:18,247 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 130 transitions, 305 flow [2024-11-24 01:29:18,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-11-24 01:29:18,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:18,248 INFO L206 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] [2024-11-24 01:29:18,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:29:18,248 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 01:29:18,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash 602896067, now seen corresponding path program 1 times [2024-11-24 01:29:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:18,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739086378] [2024-11-24 01:29:18,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:18,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:18,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739086378] [2024-11-24 01:29:18,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739086378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:18,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:18,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:18,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733205693] [2024-11-24 01:29:18,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:18,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:18,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:18,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:18,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:18,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 144 [2024-11-24 01:29:18,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-24 01:29:18,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:18,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 144 [2024-11-24 01:29:18,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:18,526 INFO L124 PetriNetUnfolderBase]: 95/793 cut-off events. [2024-11-24 01:29:18,526 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-24 01:29:18,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 793 events. 95/793 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4795 event pairs, 60 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 1121. Up to 189 conditions per place. [2024-11-24 01:29:18,530 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 27 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-24 01:29:18,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 137 transitions, 385 flow [2024-11-24 01:29:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:18,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-24 01:29:18,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2024-11-24 01:29:18,532 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 305 flow. Second operand 3 states and 356 transitions. [2024-11-24 01:29:18,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 137 transitions, 385 flow [2024-11-24 01:29:18,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 137 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:29:18,537 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 325 flow [2024-11-24 01:29:18,537 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-11-24 01:29:18,538 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, 3 predicate places. [2024-11-24 01:29:18,538 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 325 flow [2024-11-24 01:29:18,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-24 01:29:18,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:18,538 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:18,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:29:18,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 01:29:18,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1509502701, now seen corresponding path program 1 times [2024-11-24 01:29:18,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:18,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734896325] [2024-11-24 01:29:18,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:18,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:29:18,577 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:29:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:29:18,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:29:18,634 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:29:18,635 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-24 01:29:18,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-24 01:29:18,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-24 01:29:18,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-24 01:29:18,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-24 01:29:18,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-24 01:29:18,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-24 01:29:18,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-24 01:29:18,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-24 01:29:18,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-24 01:29:18,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-24 01:29:18,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-24 01:29:18,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:29:18,642 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 01:29:18,645 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 01:29:18,645 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 01:29:18,684 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 01:29:18,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 193 transitions, 402 flow [2024-11-24 01:29:18,759 INFO L124 PetriNetUnfolderBase]: 40/347 cut-off events. [2024-11-24 01:29:18,760 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 01:29:18,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 347 events. 40/347 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1228 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 209. Up to 9 conditions per place. [2024-11-24 01:29:18,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 193 transitions, 402 flow [2024-11-24 01:29:18,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 193 transitions, 402 flow [2024-11-24 01:29:18,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:29:18,772 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;@6b7782c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:29:18,772 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-24 01:29:18,778 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:29:18,778 INFO L124 PetriNetUnfolderBase]: 4/48 cut-off events. [2024-11-24 01:29:18,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:29:18,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:18,778 INFO L206 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] [2024-11-24 01:29:18,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:18,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:18,780 INFO L85 PathProgramCache]: Analyzing trace with hash -825048033, now seen corresponding path program 1 times [2024-11-24 01:29:18,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:18,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230972010] [2024-11-24 01:29:18,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:18,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230972010] [2024-11-24 01:29:18,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230972010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:18,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:18,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:18,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246843316] [2024-11-24 01:29:18,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:18,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:29:18,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:18,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:29:18,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:29:18,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 193 [2024-11-24 01:29:18,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 193 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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) [2024-11-24 01:29:18,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:18,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 193 [2024-11-24 01:29:18,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:19,318 INFO L124 PetriNetUnfolderBase]: 421/2602 cut-off events. [2024-11-24 01:29:19,319 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-24 01:29:19,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3361 conditions, 2602 events. 421/2602 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 21185 event pairs, 414 based on Foata normal form. 577/2911 useless extension candidates. Maximal degree in co-relation 2797. Up to 716 conditions per place. [2024-11-24 01:29:19,336 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 20 selfloop transitions, 0 changer transitions 0/172 dead transitions. [2024-11-24 01:29:19,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 172 transitions, 400 flow [2024-11-24 01:29:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:29:19,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-24 01:29:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 345 transitions. [2024-11-24 01:29:19,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8937823834196891 [2024-11-24 01:29:19,340 INFO L175 Difference]: Start difference. First operand has 176 places, 193 transitions, 402 flow. Second operand 2 states and 345 transitions. [2024-11-24 01:29:19,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 172 transitions, 400 flow [2024-11-24 01:29:19,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 172 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:29:19,346 INFO L231 Difference]: Finished difference. Result has 175 places, 172 transitions, 360 flow [2024-11-24 01:29:19,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=175, PETRI_TRANSITIONS=172} [2024-11-24 01:29:19,347 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, -1 predicate places. [2024-11-24 01:29:19,348 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 172 transitions, 360 flow [2024-11-24 01:29:19,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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) [2024-11-24 01:29:19,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:19,349 INFO L206 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] [2024-11-24 01:29:19,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:29:19,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:19,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1669370240, now seen corresponding path program 1 times [2024-11-24 01:29:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:19,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048741600] [2024-11-24 01:29:19,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:19,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:19,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048741600] [2024-11-24 01:29:19,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048741600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:19,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:19,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:19,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875593100] [2024-11-24 01:29:19,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:19,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:19,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:19,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:19,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:19,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 193 [2024-11-24 01:29:19,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2024-11-24 01:29:19,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:19,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 193 [2024-11-24 01:29:19,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:20,235 INFO L124 PetriNetUnfolderBase]: 802/4340 cut-off events. [2024-11-24 01:29:20,236 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-24 01:29:20,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5694 conditions, 4340 events. 802/4340 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 41492 event pairs, 348 based on Foata normal form. 1/3941 useless extension candidates. Maximal degree in co-relation 5689. Up to 1303 conditions per place. [2024-11-24 01:29:20,263 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 31 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-11-24 01:29:20,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 179 transitions, 440 flow [2024-11-24 01:29:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:20,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:20,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2024-11-24 01:29:20,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8203799654576857 [2024-11-24 01:29:20,266 INFO L175 Difference]: Start difference. First operand has 175 places, 172 transitions, 360 flow. Second operand 3 states and 475 transitions. [2024-11-24 01:29:20,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 179 transitions, 440 flow [2024-11-24 01:29:20,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 179 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:29:20,273 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 372 flow [2024-11-24 01:29:20,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2024-11-24 01:29:20,274 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 2 predicate places. [2024-11-24 01:29:20,274 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 372 flow [2024-11-24 01:29:20,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2024-11-24 01:29:20,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:20,278 INFO L206 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] [2024-11-24 01:29:20,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:29:20,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:20,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1477072931, now seen corresponding path program 1 times [2024-11-24 01:29:20,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:20,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090234167] [2024-11-24 01:29:20,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:20,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:20,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090234167] [2024-11-24 01:29:20,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090234167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:20,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:20,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:29:20,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353762579] [2024-11-24 01:29:20,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:20,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:29:20,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:20,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:29:20,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:29:20,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 193 [2024-11-24 01:29:20,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 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) [2024-11-24 01:29:20,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:20,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 193 [2024-11-24 01:29:20,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:22,307 INFO L124 PetriNetUnfolderBase]: 1739/6865 cut-off events. [2024-11-24 01:29:22,308 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-24 01:29:22,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9836 conditions, 6865 events. 1739/6865 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 68757 event pairs, 760 based on Foata normal form. 0/6164 useless extension candidates. Maximal degree in co-relation 9829. Up to 2015 conditions per place. [2024-11-24 01:29:22,357 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 80 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-11-24 01:29:22,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 220 transitions, 638 flow [2024-11-24 01:29:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:29:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:29:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 896 transitions. [2024-11-24 01:29:22,360 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7737478411053541 [2024-11-24 01:29:22,360 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 372 flow. Second operand 6 states and 896 transitions. [2024-11-24 01:29:22,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 220 transitions, 638 flow [2024-11-24 01:29:22,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 220 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:29:22,365 INFO L231 Difference]: Finished difference. Result has 181 places, 172 transitions, 380 flow [2024-11-24 01:29:22,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=380, PETRI_PLACES=181, PETRI_TRANSITIONS=172} [2024-11-24 01:29:22,366 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 5 predicate places. [2024-11-24 01:29:22,366 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 172 transitions, 380 flow [2024-11-24 01:29:22,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 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) [2024-11-24 01:29:22,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:22,367 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:22,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:29:22,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:22,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash 67223923, now seen corresponding path program 1 times [2024-11-24 01:29:22,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:22,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220533735] [2024-11-24 01:29:22,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:22,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220533735] [2024-11-24 01:29:22,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220533735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:22,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:22,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375507556] [2024-11-24 01:29:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:22,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:22,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:22,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:22,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 193 [2024-11-24 01:29:22,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 172 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-24 01:29:22,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:22,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 193 [2024-11-24 01:29:22,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:24,902 INFO L124 PetriNetUnfolderBase]: 4085/14792 cut-off events. [2024-11-24 01:29:24,902 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-24 01:29:24,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21539 conditions, 14792 events. 4085/14792 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 164339 event pairs, 1409 based on Foata normal form. 0/13243 useless extension candidates. Maximal degree in co-relation 21532. Up to 3578 conditions per place. [2024-11-24 01:29:24,983 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 58 selfloop transitions, 14 changer transitions 0/205 dead transitions. [2024-11-24 01:29:24,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 205 transitions, 601 flow [2024-11-24 01:29:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:24,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2024-11-24 01:29:24,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8272884283246977 [2024-11-24 01:29:24,985 INFO L175 Difference]: Start difference. First operand has 181 places, 172 transitions, 380 flow. Second operand 3 states and 479 transitions. [2024-11-24 01:29:24,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 205 transitions, 601 flow [2024-11-24 01:29:24,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 589 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:29:24,990 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 490 flow [2024-11-24 01:29:24,990 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-24 01:29:24,991 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 4 predicate places. [2024-11-24 01:29:24,991 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 490 flow [2024-11-24 01:29:24,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-24 01:29:24,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:24,992 INFO L206 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] [2024-11-24 01:29:24,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:29:24,992 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:24,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:24,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1799341899, now seen corresponding path program 1 times [2024-11-24 01:29:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:24,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976371180] [2024-11-24 01:29:24,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:25,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:25,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976371180] [2024-11-24 01:29:25,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976371180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:25,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:25,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:25,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419912005] [2024-11-24 01:29:25,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:25,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:25,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:25,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:25,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:25,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-24 01:29:25,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2024-11-24 01:29:25,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:25,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-24 01:29:25,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:26,972 INFO L124 PetriNetUnfolderBase]: 4151/16635 cut-off events. [2024-11-24 01:29:26,972 INFO L125 PetriNetUnfolderBase]: For 4322/4497 co-relation queries the response was YES. [2024-11-24 01:29:27,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27453 conditions, 16635 events. 4151/16635 cut-off events. For 4322/4497 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 195223 event pairs, 2411 based on Foata normal form. 46/15100 useless extension candidates. Maximal degree in co-relation 27445. Up to 5625 conditions per place. [2024-11-24 01:29:27,057 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 52 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2024-11-24 01:29:27,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 210 transitions, 708 flow [2024-11-24 01:29:27,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:27,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:27,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2024-11-24 01:29:27,159 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8169257340241797 [2024-11-24 01:29:27,163 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 490 flow. Second operand 3 states and 473 transitions. [2024-11-24 01:29:27,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 210 transitions, 708 flow [2024-11-24 01:29:27,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 210 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:29:27,179 INFO L231 Difference]: Finished difference. Result has 182 places, 198 transitions, 588 flow [2024-11-24 01:29:27,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=182, PETRI_TRANSITIONS=198} [2024-11-24 01:29:27,180 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 6 predicate places. [2024-11-24 01:29:27,180 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 198 transitions, 588 flow [2024-11-24 01:29:27,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2024-11-24 01:29:27,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:27,181 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:27,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:29:27,181 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:27,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -921122402, now seen corresponding path program 1 times [2024-11-24 01:29:27,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:27,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573884679] [2024-11-24 01:29:27,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:27,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:29:27,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:27,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573884679] [2024-11-24 01:29:27,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573884679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:27,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:27,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:29:27,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568678372] [2024-11-24 01:29:27,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:27,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:29:27,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:27,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:29:27,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:29:27,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 193 [2024-11-24 01:29:27,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 198 transitions, 588 flow. Second operand has 5 states, 5 states have (on average 147.4) internal successors, (737), 5 states have internal predecessors, (737), 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) [2024-11-24 01:29:27,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:27,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 193 [2024-11-24 01:29:27,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:29,865 INFO L124 PetriNetUnfolderBase]: 3472/19609 cut-off events. [2024-11-24 01:29:29,865 INFO L125 PetriNetUnfolderBase]: For 1962/2262 co-relation queries the response was YES. [2024-11-24 01:29:29,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28508 conditions, 19609 events. 3472/19609 cut-off events. For 1962/2262 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 254640 event pairs, 1482 based on Foata normal form. 21/17492 useless extension candidates. Maximal degree in co-relation 28499. Up to 3824 conditions per place. [2024-11-24 01:29:29,958 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 56 selfloop transitions, 5 changer transitions 0/230 dead transitions. [2024-11-24 01:29:29,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 230 transitions, 774 flow [2024-11-24 01:29:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:29:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:29:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 932 transitions. [2024-11-24 01:29:29,961 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8048359240069085 [2024-11-24 01:29:29,961 INFO L175 Difference]: Start difference. First operand has 182 places, 198 transitions, 588 flow. Second operand 6 states and 932 transitions. [2024-11-24 01:29:29,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 230 transitions, 774 flow [2024-11-24 01:29:29,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 230 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:29:29,973 INFO L231 Difference]: Finished difference. Result has 188 places, 200 transitions, 586 flow [2024-11-24 01:29:29,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=586, PETRI_PLACES=188, PETRI_TRANSITIONS=200} [2024-11-24 01:29:29,974 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 12 predicate places. [2024-11-24 01:29:29,974 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 200 transitions, 586 flow [2024-11-24 01:29:29,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.4) internal successors, (737), 5 states have internal predecessors, (737), 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) [2024-11-24 01:29:29,975 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:29,975 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:29,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:29:29,975 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:29,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1539605248, now seen corresponding path program 1 times [2024-11-24 01:29:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050403724] [2024-11-24 01:29:29,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:29:30,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:30,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050403724] [2024-11-24 01:29:30,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050403724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:30,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:30,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295734577] [2024-11-24 01:29:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:30,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:30,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:30,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:30,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-24 01:29:30,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 200 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2024-11-24 01:29:30,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:30,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-24 01:29:30,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:32,265 INFO L124 PetriNetUnfolderBase]: 4667/20052 cut-off events. [2024-11-24 01:29:32,265 INFO L125 PetriNetUnfolderBase]: For 5091/5298 co-relation queries the response was YES. [2024-11-24 01:29:32,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32612 conditions, 20052 events. 4667/20052 cut-off events. For 5091/5298 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 250157 event pairs, 2724 based on Foata normal form. 35/18010 useless extension candidates. Maximal degree in co-relation 32600. Up to 6276 conditions per place. [2024-11-24 01:29:32,369 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 59 selfloop transitions, 17 changer transitions 0/224 dead transitions. [2024-11-24 01:29:32,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 224 transitions, 821 flow [2024-11-24 01:29:32,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2024-11-24 01:29:32,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8151986183074266 [2024-11-24 01:29:32,372 INFO L175 Difference]: Start difference. First operand has 188 places, 200 transitions, 586 flow. Second operand 3 states and 472 transitions. [2024-11-24 01:29:32,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 224 transitions, 821 flow [2024-11-24 01:29:32,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 224 transitions, 815 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-24 01:29:32,380 INFO L231 Difference]: Finished difference. Result has 190 places, 213 transitions, 734 flow [2024-11-24 01:29:32,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=190, PETRI_TRANSITIONS=213} [2024-11-24 01:29:32,381 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 14 predicate places. [2024-11-24 01:29:32,381 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 213 transitions, 734 flow [2024-11-24 01:29:32,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2024-11-24 01:29:32,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:32,382 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:32,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:29:32,382 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:32,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2114686338, now seen corresponding path program 1 times [2024-11-24 01:29:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:32,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824600323] [2024-11-24 01:29:32,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:32,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:32,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:29:32,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:32,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824600323] [2024-11-24 01:29:32,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824600323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:32,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:32,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:32,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624626863] [2024-11-24 01:29:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:32,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:32,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:32,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:32,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:32,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-24 01:29:32,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 213 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2024-11-24 01:29:32,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:32,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-24 01:29:32,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:35,110 INFO L124 PetriNetUnfolderBase]: 5232/22632 cut-off events. [2024-11-24 01:29:35,110 INFO L125 PetriNetUnfolderBase]: For 12806/13238 co-relation queries the response was YES. [2024-11-24 01:29:35,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39845 conditions, 22632 events. 5232/22632 cut-off events. For 12806/13238 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 288414 event pairs, 2912 based on Foata normal form. 50/20365 useless extension candidates. Maximal degree in co-relation 39832. Up to 7045 conditions per place. [2024-11-24 01:29:35,203 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 71 selfloop transitions, 17 changer transitions 0/238 dead transitions. [2024-11-24 01:29:35,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 238 transitions, 1028 flow [2024-11-24 01:29:35,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2024-11-24 01:29:35,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8169257340241797 [2024-11-24 01:29:35,205 INFO L175 Difference]: Start difference. First operand has 190 places, 213 transitions, 734 flow. Second operand 3 states and 473 transitions. [2024-11-24 01:29:35,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 238 transitions, 1028 flow [2024-11-24 01:29:35,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 238 transitions, 988 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:29:35,234 INFO L231 Difference]: Finished difference. Result has 192 places, 226 transitions, 876 flow [2024-11-24 01:29:35,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=192, PETRI_TRANSITIONS=226} [2024-11-24 01:29:35,235 INFO L279 CegarLoopForPetriNet]: 176 programPoint places, 16 predicate places. [2024-11-24 01:29:35,235 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 226 transitions, 876 flow [2024-11-24 01:29:35,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2024-11-24 01:29:35,236 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:35,236 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 01:29:35,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:29:35,236 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 01:29:35,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:35,237 INFO L85 PathProgramCache]: Analyzing trace with hash -304293297, now seen corresponding path program 1 times [2024-11-24 01:29:35,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:35,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005468692] [2024-11-24 01:29:35,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:35,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:29:35,261 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:29:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:29:35,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:29:35,282 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:29:35,282 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-24 01:29:35,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-24 01:29:35,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-24 01:29:35,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:29:35,284 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:35,285 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 01:29:35,285 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-24 01:29:35,315 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-24 01:29:35,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 242 transitions, 511 flow [2024-11-24 01:29:35,380 INFO L124 PetriNetUnfolderBase]: 62/532 cut-off events. [2024-11-24 01:29:35,380 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-24 01:29:35,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 532 events. 62/532 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2048 event pairs, 1 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 355. Up to 16 conditions per place. [2024-11-24 01:29:35,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 242 transitions, 511 flow [2024-11-24 01:29:35,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 242 transitions, 511 flow [2024-11-24 01:29:35,392 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:29:35,392 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;@6b7782c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:29:35,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-24 01:29:35,396 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:29:35,396 INFO L124 PetriNetUnfolderBase]: 4/48 cut-off events. [2024-11-24 01:29:35,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:29:35,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:35,396 INFO L206 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] [2024-11-24 01:29:35,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 01:29:35,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1832835041, now seen corresponding path program 1 times [2024-11-24 01:29:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:35,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524493060] [2024-11-24 01:29:35,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:35,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:35,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524493060] [2024-11-24 01:29:35,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524493060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:35,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:35,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20626823] [2024-11-24 01:29:35,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:35,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:29:35,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:35,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:29:35,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:29:35,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 242 [2024-11-24 01:29:35,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 242 transitions, 511 flow. Second operand has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:29:35,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:35,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 242 [2024-11-24 01:29:35,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:38,322 INFO L124 PetriNetUnfolderBase]: 4833/20255 cut-off events. [2024-11-24 01:29:38,322 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-11-24 01:29:38,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27680 conditions, 20255 events. 4833/20255 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 243222 event pairs, 4795 based on Foata normal form. 5465/23774 useless extension candidates. Maximal degree in co-relation 23268. Up to 6995 conditions per place. [2024-11-24 01:29:38,417 INFO L140 encePairwiseOnDemand]: 217/242 looper letters, 28 selfloop transitions, 0 changer transitions 0/215 dead transitions. [2024-11-24 01:29:38,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 215 transitions, 513 flow [2024-11-24 01:29:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:29:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-24 01:29:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 429 transitions. [2024-11-24 01:29:38,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-11-24 01:29:38,419 INFO L175 Difference]: Start difference. First operand has 220 places, 242 transitions, 511 flow. Second operand 2 states and 429 transitions. [2024-11-24 01:29:38,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 215 transitions, 513 flow [2024-11-24 01:29:38,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 215 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:29:38,423 INFO L231 Difference]: Finished difference. Result has 219 places, 215 transitions, 457 flow [2024-11-24 01:29:38,423 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=457, PETRI_PLACES=219, PETRI_TRANSITIONS=215} [2024-11-24 01:29:38,424 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, -1 predicate places. [2024-11-24 01:29:38,424 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 215 transitions, 457 flow [2024-11-24 01:29:38,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:29:38,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:38,425 INFO L206 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] [2024-11-24 01:29:38,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:29:38,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 01:29:38,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:38,425 INFO L85 PathProgramCache]: Analyzing trace with hash -446295104, now seen corresponding path program 1 times [2024-11-24 01:29:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:38,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873128815] [2024-11-24 01:29:38,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:38,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:38,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873128815] [2024-11-24 01:29:38,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873128815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:38,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:38,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:38,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669485177] [2024-11-24 01:29:38,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:38,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:38,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:38,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:38,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 242 [2024-11-24 01:29:38,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 215 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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) [2024-11-24 01:29:38,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:38,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 242 [2024-11-24 01:29:38,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:42,397 INFO L124 PetriNetUnfolderBase]: 8969/35501 cut-off events. [2024-11-24 01:29:42,397 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-24 01:29:42,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48740 conditions, 35501 events. 8969/35501 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 459318 event pairs, 8324 based on Foata normal form. 1/32093 useless extension candidates. Maximal degree in co-relation 48734. Up to 12802 conditions per place. [2024-11-24 01:29:42,589 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 39 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-11-24 01:29:42,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 222 transitions, 553 flow [2024-11-24 01:29:42,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:29:42,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-11-24 01:29:42,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8099173553719008 [2024-11-24 01:29:42,592 INFO L175 Difference]: Start difference. First operand has 219 places, 215 transitions, 457 flow. Second operand 3 states and 588 transitions. [2024-11-24 01:29:42,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 222 transitions, 553 flow [2024-11-24 01:29:42,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 222 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 01:29:42,597 INFO L231 Difference]: Finished difference. Result has 222 places, 216 transitions, 469 flow [2024-11-24 01:29:42,598 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=222, PETRI_TRANSITIONS=216} [2024-11-24 01:29:42,599 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 2 predicate places. [2024-11-24 01:29:42,599 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 216 transitions, 469 flow [2024-11-24 01:29:42,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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) [2024-11-24 01:29:42,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:42,600 INFO L206 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] [2024-11-24 01:29:42,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:29:42,600 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 01:29:42,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:42,601 INFO L85 PathProgramCache]: Analyzing trace with hash 315956949, now seen corresponding path program 1 times [2024-11-24 01:29:42,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:42,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554857188] [2024-11-24 01:29:42,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:42,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:42,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:42,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554857188] [2024-11-24 01:29:42,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554857188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:42,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:42,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:29:42,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395349311] [2024-11-24 01:29:42,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:42,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:29:42,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:42,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:29:42,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:29:43,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 242 [2024-11-24 01:29:43,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 216 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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) [2024-11-24 01:29:43,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:43,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 242 [2024-11-24 01:29:43,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:29:51,126 INFO L124 PetriNetUnfolderBase]: 19695/66079 cut-off events. [2024-11-24 01:29:51,126 INFO L125 PetriNetUnfolderBase]: For 1507/1507 co-relation queries the response was YES. [2024-11-24 01:29:51,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95005 conditions, 66079 events. 19695/66079 cut-off events. For 1507/1507 co-relation queries the response was YES. Maximal size of possible extension queue 1362. Compared 892595 event pairs, 7382 based on Foata normal form. 0/60325 useless extension candidates. Maximal degree in co-relation 94997. Up to 20118 conditions per place. [2024-11-24 01:29:51,656 INFO L140 encePairwiseOnDemand]: 236/242 looper letters, 112 selfloop transitions, 6 changer transitions 0/287 dead transitions. [2024-11-24 01:29:51,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 287 transitions, 847 flow [2024-11-24 01:29:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:29:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:29:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2024-11-24 01:29:51,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7837465564738292 [2024-11-24 01:29:51,663 INFO L175 Difference]: Start difference. First operand has 222 places, 216 transitions, 469 flow. Second operand 6 states and 1138 transitions. [2024-11-24 01:29:51,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 287 transitions, 847 flow [2024-11-24 01:29:51,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 287 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:29:51,678 INFO L231 Difference]: Finished difference. Result has 225 places, 215 transitions, 477 flow [2024-11-24 01:29:51,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=225, PETRI_TRANSITIONS=215} [2024-11-24 01:29:51,682 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 5 predicate places. [2024-11-24 01:29:51,683 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 215 transitions, 477 flow [2024-11-24 01:29:51,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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) [2024-11-24 01:29:51,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:29:51,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:51,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:29:51,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 01:29:51,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:51,689 INFO L85 PathProgramCache]: Analyzing trace with hash -327591134, now seen corresponding path program 1 times [2024-11-24 01:29:51,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:51,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031657390] [2024-11-24 01:29:51,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:51,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:51,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:51,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031657390] [2024-11-24 01:29:51,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031657390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:51,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:51,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:51,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866946462] [2024-11-24 01:29:51,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:51,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:51,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:51,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:51,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:51,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 242 [2024-11-24 01:29:51,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 215 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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) [2024-11-24 01:29:51,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:29:51,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 242 [2024-11-24 01:29:51,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand