./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.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_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/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_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/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_9b3541eb-c1f2-4427-8133-39058355c248/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 b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:45:29,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:45:29,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:45:29,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:45:29,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:45:29,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:45:29,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:45:29,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:45:29,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:45:29,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:45:29,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:45:29,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:45:29,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:45:29,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:45:29,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:45:29,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:45:29,634 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:45:29,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:29,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:29,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:45:29,635 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:45:29,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:45:29,636 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_9b3541eb-c1f2-4427-8133-39058355c248/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 -> b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 [2024-11-24 00:45:29,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:45:29,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:45:29,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:45:29,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:45:29,957 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:45:29,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2024-11-24 00:45:32,964 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/data/57ea8929c/2506e9f2ed474a28b222c100ce0e9cdc/FLAGdee00fad6 [2024-11-24 00:45:33,288 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:45:33,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2024-11-24 00:45:33,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/data/57ea8929c/2506e9f2ed474a28b222c100ce0e9cdc/FLAGdee00fad6 [2024-11-24 00:45:33,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/data/57ea8929c/2506e9f2ed474a28b222c100ce0e9cdc [2024-11-24 00:45:33,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:45:33,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:45:33,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:33,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:45:33,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:45:33,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191a5219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33, skipping insertion in model container [2024-11-24 00:45:33,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:45:33,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:33,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:45:33,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:33,816 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:45:33,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33 WrapperNode [2024-11-24 00:45:33,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:33,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:33,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:45:33,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:45:33,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,859 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-24 00:45:33,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:33,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:45:33,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:45:33,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:45:33,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,879 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:45:33,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:45:33,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:45:33,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:45:33,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (1/1) ... [2024-11-24 00:45:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:33,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:33,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:45:33,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:45:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:45:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-24 00:45:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:45:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:45:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:45:33,973 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 00:45:34,108 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:45:34,111 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:45:34,393 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:45:34,393 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:45:34,425 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:45:34,425 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:45:34,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:34 BoogieIcfgContainer [2024-11-24 00:45:34,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:45:34,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:45:34,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:45:34,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:45:34,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:45:33" (1/3) ... [2024-11-24 00:45:34,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b1c4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:34, skipping insertion in model container [2024-11-24 00:45:34,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:33" (2/3) ... [2024-11-24 00:45:34,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b1c4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:34, skipping insertion in model container [2024-11-24 00:45:34,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:34" (3/3) ... [2024-11-24 00:45:34,444 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race.i [2024-11-24 00:45:34,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:45:34,466 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-const-race.i that has 2 procedures, 76 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-24 00:45:34,466 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:45:34,557 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:45:34,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 79 transitions, 165 flow [2024-11-24 00:45:34,702 INFO L124 PetriNetUnfolderBase]: 5/114 cut-off events. [2024-11-24 00:45:34,708 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:45:34,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 5/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 220 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-24 00:45:34,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 79 transitions, 165 flow [2024-11-24 00:45:34,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 79 transitions, 165 flow [2024-11-24 00:45:34,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:34,748 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;@786b2222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:34,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 00:45:34,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:45:34,766 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-24 00:45:34,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:45:34,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:34,767 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] [2024-11-24 00:45:34,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:45:34,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:34,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1723894168, now seen corresponding path program 1 times [2024-11-24 00:45:34,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:34,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53072219] [2024-11-24 00:45:34,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:34,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:35,127 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 00:45:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53072219] [2024-11-24 00:45:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53072219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:35,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761611152] [2024-11-24 00:45:35,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:35,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:35,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:35,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:35,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 79 [2024-11-24 00:45:35,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 00:45:35,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:35,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 79 [2024-11-24 00:45:35,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:35,365 INFO L124 PetriNetUnfolderBase]: 8/187 cut-off events. [2024-11-24 00:45:35,365 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 00:45:35,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 187 events. 8/187 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 582 event pairs, 0 based on Foata normal form. 5/172 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2024-11-24 00:45:35,368 INFO L140 encePairwiseOnDemand]: 72/79 looper letters, 10 selfloop transitions, 4 changer transitions 1/81 dead transitions. [2024-11-24 00:45:35,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 199 flow [2024-11-24 00:45:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2024-11-24 00:45:35,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8955696202531646 [2024-11-24 00:45:35,392 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 165 flow. Second operand 4 states and 283 transitions. [2024-11-24 00:45:35,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 199 flow [2024-11-24 00:45:35,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 81 transitions, 199 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:45:35,409 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 173 flow [2024-11-24 00:45:35,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-24 00:45:35,419 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-24 00:45:35,419 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 173 flow [2024-11-24 00:45:35,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 00:45:35,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:35,421 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] [2024-11-24 00:45:35,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:45:35,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:45:35,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash 482375562, now seen corresponding path program 1 times [2024-11-24 00:45:35,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:35,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236026260] [2024-11-24 00:45:35,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:36,170 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 00:45:36,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:36,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236026260] [2024-11-24 00:45:36,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236026260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:36,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:36,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:45:36,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680429761] [2024-11-24 00:45:36,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:36,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:36,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:36,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:36,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:36,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 79 [2024-11-24 00:45:36,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 00:45:36,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:36,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 79 [2024-11-24 00:45:36,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:36,531 INFO L124 PetriNetUnfolderBase]: 30/231 cut-off events. [2024-11-24 00:45:36,531 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-24 00:45:36,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 30/231 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 936 event pairs, 11 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 268. Up to 62 conditions per place. [2024-11-24 00:45:36,534 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 25 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2024-11-24 00:45:36,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 247 flow [2024-11-24 00:45:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:45:36,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 355 transitions. [2024-11-24 00:45:36,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7489451476793249 [2024-11-24 00:45:36,540 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 173 flow. Second operand 6 states and 355 transitions. [2024-11-24 00:45:36,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 247 flow [2024-11-24 00:45:36,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 239 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 00:45:36,545 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 173 flow [2024-11-24 00:45:36,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=173, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2024-11-24 00:45:36,546 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2024-11-24 00:45:36,547 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 173 flow [2024-11-24 00:45:36,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 00:45:36,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:36,547 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 00:45:36,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:45:36,548 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:45:36,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:36,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2108367966, now seen corresponding path program 1 times [2024-11-24 00:45:36,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:36,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892679350] [2024-11-24 00:45:36,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:36,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:36,631 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 00:45:36,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:36,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892679350] [2024-11-24 00:45:36,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892679350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:36,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:36,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:36,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206272071] [2024-11-24 00:45:36,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:36,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:36,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:36,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:36,652 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 79 [2024-11-24 00:45:36,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 00:45:36,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:36,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 79 [2024-11-24 00:45:36,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:36,696 INFO L124 PetriNetUnfolderBase]: 6/143 cut-off events. [2024-11-24 00:45:36,696 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-24 00:45:36,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 143 events. 6/143 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 379 event pairs, 4 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 136. Up to 21 conditions per place. [2024-11-24 00:45:36,698 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 9 selfloop transitions, 4 changer transitions 0/79 dead transitions. [2024-11-24 00:45:36,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 205 flow [2024-11-24 00:45:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-11-24 00:45:36,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9071729957805907 [2024-11-24 00:45:36,703 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 173 flow. Second operand 3 states and 215 transitions. [2024-11-24 00:45:36,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 205 flow [2024-11-24 00:45:36,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 195 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:45:36,705 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 193 flow [2024-11-24 00:45:36,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-11-24 00:45:36,707 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-24 00:45:36,707 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 193 flow [2024-11-24 00:45:36,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 00:45:36,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:36,708 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] [2024-11-24 00:45:36,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:45:36,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:45:36,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1760578690, now seen corresponding path program 1 times [2024-11-24 00:45:36,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:36,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745663853] [2024-11-24 00:45:36,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:36,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:36,857 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 00:45:36,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:36,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745663853] [2024-11-24 00:45:36,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745663853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:36,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:36,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:36,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625883080] [2024-11-24 00:45:36,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:36,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:36,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:36,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:36,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:36,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 79 [2024-11-24 00:45:36,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 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 00:45:36,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:36,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 79 [2024-11-24 00:45:36,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:36,963 INFO L124 PetriNetUnfolderBase]: 2/108 cut-off events. [2024-11-24 00:45:36,963 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:45:36,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 108 events. 2/108 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 3/106 useless extension candidates. Maximal degree in co-relation 83. Up to 7 conditions per place. [2024-11-24 00:45:36,964 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 9 selfloop transitions, 3 changer transitions 7/77 dead transitions. [2024-11-24 00:45:36,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 203 flow [2024-11-24 00:45:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-24 00:45:36,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.879746835443038 [2024-11-24 00:45:36,967 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 193 flow. Second operand 4 states and 278 transitions. [2024-11-24 00:45:36,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 203 flow [2024-11-24 00:45:36,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 77 transitions, 191 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-24 00:45:36,970 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 157 flow [2024-11-24 00:45:36,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-11-24 00:45:36,972 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2024-11-24 00:45:36,973 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 157 flow [2024-11-24 00:45:36,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 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 00:45:36,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:36,973 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] [2024-11-24 00:45:36,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:45:36,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:45:36,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:36,976 INFO L85 PathProgramCache]: Analyzing trace with hash -688522302, now seen corresponding path program 1 times [2024-11-24 00:45:36,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:36,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686843590] [2024-11-24 00:45:36,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:36,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:37,165 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 00:45:37,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:37,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686843590] [2024-11-24 00:45:37,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686843590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:37,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:37,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:37,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827008109] [2024-11-24 00:45:37,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:37,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:37,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:37,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:37,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:37,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 79 [2024-11-24 00:45:37,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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 00:45:37,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:37,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 79 [2024-11-24 00:45:37,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:37,326 INFO L124 PetriNetUnfolderBase]: 6/95 cut-off events. [2024-11-24 00:45:37,326 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 00:45:37,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 95 events. 6/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 3/97 useless extension candidates. Maximal degree in co-relation 122. Up to 5 conditions per place. [2024-11-24 00:45:37,327 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 10 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-11-24 00:45:37,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 146 flow [2024-11-24 00:45:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:45:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 464 transitions. [2024-11-24 00:45:37,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8390596745027125 [2024-11-24 00:45:37,329 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 157 flow. Second operand 7 states and 464 transitions. [2024-11-24 00:45:37,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 146 flow [2024-11-24 00:45:37,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 54 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:37,331 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 111 flow [2024-11-24 00:45:37,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-24 00:45:37,332 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, -20 predicate places. [2024-11-24 00:45:37,332 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 111 flow [2024-11-24 00:45:37,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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 00:45:37,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:37,333 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] [2024-11-24 00:45:37,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:45:37,333 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:45:37,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2001815417, now seen corresponding path program 1 times [2024-11-24 00:45:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:37,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422684702] [2024-11-24 00:45:37,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:37,369 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:45:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:37,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:45:37,408 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:45:37,409 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-24 00:45:37,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-24 00:45:37,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-24 00:45:37,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-24 00:45:37,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-24 00:45:37,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-24 00:45:37,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:45:37,415 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 00:45:37,420 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:45:37,420 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:45:37,449 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 00:45:37,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 97 transitions, 210 flow [2024-11-24 00:45:37,481 INFO L124 PetriNetUnfolderBase]: 10/203 cut-off events. [2024-11-24 00:45:37,481 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:45:37,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 203 events. 10/203 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 467 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 116. Up to 8 conditions per place. [2024-11-24 00:45:37,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 97 transitions, 210 flow [2024-11-24 00:45:37,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 97 transitions, 210 flow [2024-11-24 00:45:37,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:37,485 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;@786b2222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:37,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-24 00:45:37,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:45:37,493 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-24 00:45:37,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:45:37,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:37,494 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] [2024-11-24 00:45:37,494 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:37,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:37,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2125474056, now seen corresponding path program 1 times [2024-11-24 00:45:37,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:37,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746744225] [2024-11-24 00:45:37,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:37,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:37,571 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 00:45:37,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:37,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746744225] [2024-11-24 00:45:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746744225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:37,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:37,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516451043] [2024-11-24 00:45:37,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:37,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:37,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:37,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:37,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-24 00:45:37,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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 00:45:37,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:37,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-24 00:45:37,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:37,762 INFO L124 PetriNetUnfolderBase]: 72/621 cut-off events. [2024-11-24 00:45:37,762 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-24 00:45:37,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 621 events. 72/621 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3726 event pairs, 20 based on Foata normal form. 16/581 useless extension candidates. Maximal degree in co-relation 215. Up to 106 conditions per place. [2024-11-24 00:45:37,767 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 18 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-24 00:45:37,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 264 flow [2024-11-24 00:45:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2024-11-24 00:45:37,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8917525773195877 [2024-11-24 00:45:37,769 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 210 flow. Second operand 4 states and 346 transitions. [2024-11-24 00:45:37,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 264 flow [2024-11-24 00:45:37,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 264 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:45:37,772 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 222 flow [2024-11-24 00:45:37,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2024-11-24 00:45:37,773 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2024-11-24 00:45:37,773 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 222 flow [2024-11-24 00:45:37,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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 00:45:37,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:37,773 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] [2024-11-24 00:45:37,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:45:37,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:37,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash -419486101, now seen corresponding path program 1 times [2024-11-24 00:45:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:37,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845305441] [2024-11-24 00:45:37,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:37,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:38,130 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 00:45:38,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:38,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845305441] [2024-11-24 00:45:38,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845305441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:38,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:38,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:45:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303081322] [2024-11-24 00:45:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:38,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:38,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:38,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:38,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:38,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 97 [2024-11-24 00:45:38,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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 00:45:38,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:38,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 97 [2024-11-24 00:45:38,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:38,542 INFO L124 PetriNetUnfolderBase]: 236/992 cut-off events. [2024-11-24 00:45:38,542 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-24 00:45:38,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 992 events. 236/992 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6904 event pairs, 34 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1204. Up to 313 conditions per place. [2024-11-24 00:45:38,549 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 38 selfloop transitions, 5 changer transitions 0/111 dead transitions. [2024-11-24 00:45:38,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 111 transitions, 338 flow [2024-11-24 00:45:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:45:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2024-11-24 00:45:38,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7749140893470791 [2024-11-24 00:45:38,551 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 222 flow. Second operand 6 states and 451 transitions. [2024-11-24 00:45:38,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 111 transitions, 338 flow [2024-11-24 00:45:38,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:38,554 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 224 flow [2024-11-24 00:45:38,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2024-11-24 00:45:38,555 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 6 predicate places. [2024-11-24 00:45:38,555 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 224 flow [2024-11-24 00:45:38,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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 00:45:38,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:38,556 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 00:45:38,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:45:38,556 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:38,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1977314447, now seen corresponding path program 1 times [2024-11-24 00:45:38,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:38,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924895901] [2024-11-24 00:45:38,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:38,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:38,607 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 00:45:38,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:38,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924895901] [2024-11-24 00:45:38,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924895901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:38,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:38,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:38,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295615693] [2024-11-24 00:45:38,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:38,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:38,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:38,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:38,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:38,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-24 00:45:38,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 00:45:38,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:38,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-24 00:45:38,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:38,781 INFO L124 PetriNetUnfolderBase]: 113/682 cut-off events. [2024-11-24 00:45:38,781 INFO L125 PetriNetUnfolderBase]: For 95/136 co-relation queries the response was YES. [2024-11-24 00:45:38,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 682 events. 113/682 cut-off events. For 95/136 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4335 event pairs, 73 based on Foata normal form. 3/609 useless extension candidates. Maximal degree in co-relation 734. Up to 182 conditions per place. [2024-11-24 00:45:38,787 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 18 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2024-11-24 00:45:38,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 294 flow [2024-11-24 00:45:38,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-24 00:45:38,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072164948453608 [2024-11-24 00:45:38,789 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 224 flow. Second operand 3 states and 264 transitions. [2024-11-24 00:45:38,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 294 flow [2024-11-24 00:45:38,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 284 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:45:38,792 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 252 flow [2024-11-24 00:45:38,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2024-11-24 00:45:38,793 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 5 predicate places. [2024-11-24 00:45:38,793 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 252 flow [2024-11-24 00:45:38,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 00:45:38,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:38,794 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] [2024-11-24 00:45:38,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:45:38,794 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:38,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:38,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1029921677, now seen corresponding path program 1 times [2024-11-24 00:45:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441660407] [2024-11-24 00:45:38,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:38,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:38,888 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 00:45:38,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:38,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441660407] [2024-11-24 00:45:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441660407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:38,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:38,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765111501] [2024-11-24 00:45:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:38,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:38,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:38,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:38,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-24 00:45:38,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 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 00:45:38,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:38,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-24 00:45:38,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:39,081 INFO L124 PetriNetUnfolderBase]: 57/561 cut-off events. [2024-11-24 00:45:39,081 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-24 00:45:39,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 561 events. 57/561 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3017 event pairs, 20 based on Foata normal form. 15/532 useless extension candidates. Maximal degree in co-relation 618. Up to 66 conditions per place. [2024-11-24 00:45:39,086 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 20 selfloop transitions, 4 changer transitions 2/110 dead transitions. [2024-11-24 00:45:39,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 332 flow [2024-11-24 00:45:39,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-11-24 00:45:39,088 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8943298969072165 [2024-11-24 00:45:39,088 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 252 flow. Second operand 4 states and 347 transitions. [2024-11-24 00:45:39,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 332 flow [2024-11-24 00:45:39,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 110 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:39,093 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 258 flow [2024-11-24 00:45:39,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2024-11-24 00:45:39,095 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 7 predicate places. [2024-11-24 00:45:39,096 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 258 flow [2024-11-24 00:45:39,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 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 00:45:39,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:39,096 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] [2024-11-24 00:45:39,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:45:39,097 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:39,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:39,097 INFO L85 PathProgramCache]: Analyzing trace with hash 902122098, now seen corresponding path program 1 times [2024-11-24 00:45:39,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:39,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907588890] [2024-11-24 00:45:39,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:39,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:45:39,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:39,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907588890] [2024-11-24 00:45:39,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907588890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:39,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:39,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:39,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86597054] [2024-11-24 00:45:39,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:39,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:39,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:39,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:39,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:39,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 97 [2024-11-24 00:45:39,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 00:45:39,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:39,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 97 [2024-11-24 00:45:39,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:39,592 INFO L124 PetriNetUnfolderBase]: 117/892 cut-off events. [2024-11-24 00:45:39,592 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-24 00:45:39,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 892 events. 117/892 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5635 event pairs, 16 based on Foata normal form. 3/814 useless extension candidates. Maximal degree in co-relation 765. Up to 130 conditions per place. [2024-11-24 00:45:39,599 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 24 selfloop transitions, 7 changer transitions 3/116 dead transitions. [2024-11-24 00:45:39,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 116 transitions, 358 flow [2024-11-24 00:45:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:45:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 581 transitions. [2024-11-24 00:45:39,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8556701030927835 [2024-11-24 00:45:39,602 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 258 flow. Second operand 7 states and 581 transitions. [2024-11-24 00:45:39,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 116 transitions, 358 flow [2024-11-24 00:45:39,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 116 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:39,606 INFO L231 Difference]: Finished difference. Result has 112 places, 102 transitions, 282 flow [2024-11-24 00:45:39,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=282, PETRI_PLACES=112, PETRI_TRANSITIONS=102} [2024-11-24 00:45:39,607 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 14 predicate places. [2024-11-24 00:45:39,607 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 102 transitions, 282 flow [2024-11-24 00:45:39,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 00:45:39,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:39,608 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] [2024-11-24 00:45:39,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:45:39,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:39,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:39,609 INFO L85 PathProgramCache]: Analyzing trace with hash -246347741, now seen corresponding path program 1 times [2024-11-24 00:45:39,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:39,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836123553] [2024-11-24 00:45:39,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:39,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:45:39,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:39,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836123553] [2024-11-24 00:45:39,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836123553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:39,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:39,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310417192] [2024-11-24 00:45:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:39,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:39,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:39,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:39,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:39,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-24 00:45:39,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 102 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 00:45:39,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:39,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-24 00:45:39,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:39,803 INFO L124 PetriNetUnfolderBase]: 58/596 cut-off events. [2024-11-24 00:45:39,803 INFO L125 PetriNetUnfolderBase]: For 130/179 co-relation queries the response was YES. [2024-11-24 00:45:39,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 596 events. 58/596 cut-off events. For 130/179 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3432 event pairs, 32 based on Foata normal form. 3/552 useless extension candidates. Maximal degree in co-relation 784. Up to 111 conditions per place. [2024-11-24 00:45:39,807 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 18 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-11-24 00:45:39,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 351 flow [2024-11-24 00:45:39,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-24 00:45:39,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9037800687285223 [2024-11-24 00:45:39,809 INFO L175 Difference]: Start difference. First operand has 112 places, 102 transitions, 282 flow. Second operand 3 states and 263 transitions. [2024-11-24 00:45:39,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 351 flow [2024-11-24 00:45:39,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 341 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-24 00:45:39,812 INFO L231 Difference]: Finished difference. Result has 113 places, 106 transitions, 318 flow [2024-11-24 00:45:39,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=113, PETRI_TRANSITIONS=106} [2024-11-24 00:45:39,813 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 15 predicate places. [2024-11-24 00:45:39,813 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 106 transitions, 318 flow [2024-11-24 00:45:39,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 00:45:39,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:39,814 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:45:39,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:45:39,814 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:39,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1278121362, now seen corresponding path program 1 times [2024-11-24 00:45:39,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:39,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598821625] [2024-11-24 00:45:39,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:45:40,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:40,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598821625] [2024-11-24 00:45:40,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598821625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:40,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:40,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:45:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434407184] [2024-11-24 00:45:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:40,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:45:40,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:40,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:45:40,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:40,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 97 [2024-11-24 00:45:40,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 106 transitions, 318 flow. Second operand has 8 states, 8 states have (on average 79.625) internal successors, (637), 8 states have internal predecessors, (637), 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 00:45:40,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:40,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 97 [2024-11-24 00:45:40,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:40,366 INFO L124 PetriNetUnfolderBase]: 71/430 cut-off events. [2024-11-24 00:45:40,367 INFO L125 PetriNetUnfolderBase]: For 98/102 co-relation queries the response was YES. [2024-11-24 00:45:40,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 430 events. 71/430 cut-off events. For 98/102 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2215 event pairs, 1 based on Foata normal form. 14/433 useless extension candidates. Maximal degree in co-relation 701. Up to 32 conditions per place. [2024-11-24 00:45:40,370 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 25 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-24 00:45:40,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 328 flow [2024-11-24 00:45:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:45:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:45:40,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 814 transitions. [2024-11-24 00:45:40,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8391752577319588 [2024-11-24 00:45:40,373 INFO L175 Difference]: Start difference. First operand has 113 places, 106 transitions, 318 flow. Second operand 10 states and 814 transitions. [2024-11-24 00:45:40,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 328 flow [2024-11-24 00:45:40,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-24 00:45:40,376 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 228 flow [2024-11-24 00:45:40,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=228, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-24 00:45:40,377 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -7 predicate places. [2024-11-24 00:45:40,378 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 228 flow [2024-11-24 00:45:40,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.625) internal successors, (637), 8 states have internal predecessors, (637), 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 00:45:40,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:40,379 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:40,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:45:40,379 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-24 00:45:40,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1195450316, now seen corresponding path program 1 times [2024-11-24 00:45:40,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:40,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818149796] [2024-11-24 00:45:40,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:40,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:40,412 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:45:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:40,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:45:40,444 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:45:40,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-24 00:45:40,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-24 00:45:40,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-24 00:45:40,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-24 00:45:40,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-24 00:45:40,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-24 00:45:40,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-24 00:45:40,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:45:40,446 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:40,448 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:45:40,448 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-24 00:45:40,480 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-24 00:45:40,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 115 transitions, 257 flow [2024-11-24 00:45:40,534 INFO L124 PetriNetUnfolderBase]: 20/345 cut-off events. [2024-11-24 00:45:40,534 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-24 00:45:40,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 345 events. 20/345 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 973 event pairs, 1 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 211. Up to 16 conditions per place. [2024-11-24 00:45:40,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 115 transitions, 257 flow [2024-11-24 00:45:40,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 115 transitions, 257 flow [2024-11-24 00:45:40,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:40,540 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;@786b2222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:40,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-24 00:45:40,543 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:45:40,543 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-24 00:45:40,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:45:40,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:40,544 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] [2024-11-24 00:45:40,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:40,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:40,544 INFO L85 PathProgramCache]: Analyzing trace with hash -933016296, now seen corresponding path program 1 times [2024-11-24 00:45:40,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:40,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679155260] [2024-11-24 00:45:40,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:40,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:40,593 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 00:45:40,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:40,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679155260] [2024-11-24 00:45:40,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679155260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:40,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:40,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:40,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124972443] [2024-11-24 00:45:40,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:40,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:40,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:40,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:40,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:40,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2024-11-24 00:45:40,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 00:45:40,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:40,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2024-11-24 00:45:40,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:41,057 INFO L124 PetriNetUnfolderBase]: 413/2217 cut-off events. [2024-11-24 00:45:41,057 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-24 00:45:41,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 2217 events. 413/2217 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 17772 event pairs, 232 based on Foata normal form. 64/2094 useless extension candidates. Maximal degree in co-relation 1335. Up to 496 conditions per place. [2024-11-24 00:45:41,073 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 24 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-11-24 00:45:41,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 122 transitions, 327 flow [2024-11-24 00:45:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2024-11-24 00:45:41,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8869565217391304 [2024-11-24 00:45:41,076 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 257 flow. Second operand 4 states and 408 transitions. [2024-11-24 00:45:41,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 122 transitions, 327 flow [2024-11-24 00:45:41,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 122 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:45:41,078 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 269 flow [2024-11-24 00:45:41,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2024-11-24 00:45:41,079 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 4 predicate places. [2024-11-24 00:45:41,079 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 269 flow [2024-11-24 00:45:41,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 00:45:41,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:41,081 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] [2024-11-24 00:45:41,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:45:41,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:41,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash 415251038, now seen corresponding path program 1 times [2024-11-24 00:45:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:41,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958428476] [2024-11-24 00:45:41,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:41,356 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 00:45:41,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958428476] [2024-11-24 00:45:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958428476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:41,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:41,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:45:41,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986059768] [2024-11-24 00:45:41,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:41,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:41,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:41,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:41,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:41,491 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 115 [2024-11-24 00:45:41,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 114 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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 00:45:41,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:41,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 115 [2024-11-24 00:45:41,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:42,259 INFO L124 PetriNetUnfolderBase]: 1295/3992 cut-off events. [2024-11-24 00:45:42,259 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2024-11-24 00:45:42,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6344 conditions, 3992 events. 1295/3992 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 35346 event pairs, 181 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 5668. Up to 1483 conditions per place. [2024-11-24 00:45:42,289 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 50 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2024-11-24 00:45:42,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 137 transitions, 425 flow [2024-11-24 00:45:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:45:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2024-11-24 00:45:42,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7927536231884058 [2024-11-24 00:45:42,291 INFO L175 Difference]: Start difference. First operand has 121 places, 114 transitions, 269 flow. Second operand 6 states and 547 transitions. [2024-11-24 00:45:42,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 137 transitions, 425 flow [2024-11-24 00:45:42,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 137 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:42,299 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 271 flow [2024-11-24 00:45:42,300 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2024-11-24 00:45:42,301 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 6 predicate places. [2024-11-24 00:45:42,301 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 271 flow [2024-11-24 00:45:42,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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 00:45:42,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:42,302 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 00:45:42,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:45:42,302 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:42,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:42,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1488140622, now seen corresponding path program 1 times [2024-11-24 00:45:42,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:42,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759973955] [2024-11-24 00:45:42,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:42,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:42,349 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 00:45:42,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:42,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759973955] [2024-11-24 00:45:42,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759973955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:42,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:42,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:42,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976341959] [2024-11-24 00:45:42,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:42,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:42,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:42,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:42,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:42,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-24 00:45:42,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 00:45:42,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:42,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-24 00:45:42,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:43,099 INFO L124 PetriNetUnfolderBase]: 1006/3964 cut-off events. [2024-11-24 00:45:43,099 INFO L125 PetriNetUnfolderBase]: For 742/906 co-relation queries the response was YES. [2024-11-24 00:45:43,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5877 conditions, 3964 events. 1006/3964 cut-off events. For 742/906 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 37619 event pairs, 683 based on Foata normal form. 6/3512 useless extension candidates. Maximal degree in co-relation 4693. Up to 1312 conditions per place. [2024-11-24 00:45:43,146 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 27 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2024-11-24 00:45:43,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 126 transitions, 381 flow [2024-11-24 00:45:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-11-24 00:45:43,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2024-11-24 00:45:43,148 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 271 flow. Second operand 3 states and 313 transitions. [2024-11-24 00:45:43,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 126 transitions, 381 flow [2024-11-24 00:45:43,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 371 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:45:43,152 INFO L231 Difference]: Finished difference. Result has 122 places, 118 transitions, 307 flow [2024-11-24 00:45:43,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=122, PETRI_TRANSITIONS=118} [2024-11-24 00:45:43,153 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 5 predicate places. [2024-11-24 00:45:43,153 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 118 transitions, 307 flow [2024-11-24 00:45:43,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 00:45:43,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:43,154 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] [2024-11-24 00:45:43,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:45:43,154 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:43,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:43,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2084480586, now seen corresponding path program 1 times [2024-11-24 00:45:43,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:43,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652116308] [2024-11-24 00:45:43,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:43,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:43,232 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 00:45:43,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652116308] [2024-11-24 00:45:43,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652116308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:43,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:43,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:43,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281174768] [2024-11-24 00:45:43,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:43,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:43,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:43,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:43,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:43,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2024-11-24 00:45:43,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 118 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 00:45:43,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:43,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2024-11-24 00:45:43,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:43,770 INFO L124 PetriNetUnfolderBase]: 616/3187 cut-off events. [2024-11-24 00:45:43,771 INFO L125 PetriNetUnfolderBase]: For 440/444 co-relation queries the response was YES. [2024-11-24 00:45:43,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4715 conditions, 3187 events. 616/3187 cut-off events. For 440/444 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 29096 event pairs, 252 based on Foata normal form. 63/2922 useless extension candidates. Maximal degree in co-relation 3838. Up to 511 conditions per place. [2024-11-24 00:45:43,796 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 31 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2024-11-24 00:45:43,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 134 transitions, 418 flow [2024-11-24 00:45:43,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:43,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2024-11-24 00:45:43,798 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956521739130435 [2024-11-24 00:45:43,798 INFO L175 Difference]: Start difference. First operand has 122 places, 118 transitions, 307 flow. Second operand 4 states and 412 transitions. [2024-11-24 00:45:43,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 134 transitions, 418 flow [2024-11-24 00:45:43,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 134 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:43,803 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 311 flow [2024-11-24 00:45:43,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=311, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-11-24 00:45:43,804 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 7 predicate places. [2024-11-24 00:45:43,804 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 311 flow [2024-11-24 00:45:43,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 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 00:45:43,804 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:43,804 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] [2024-11-24 00:45:43,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:45:43,805 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:43,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:43,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2071418782, now seen corresponding path program 1 times [2024-11-24 00:45:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:43,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943182486] [2024-11-24 00:45:43,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:43,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:45:43,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:43,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943182486] [2024-11-24 00:45:43,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943182486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:43,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:43,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:43,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788538497] [2024-11-24 00:45:43,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:43,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:43,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:43,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:43,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:43,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2024-11-24 00:45:43,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 00:45:43,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:43,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2024-11-24 00:45:43,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:44,782 INFO L124 PetriNetUnfolderBase]: 950/4903 cut-off events. [2024-11-24 00:45:44,782 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2024-11-24 00:45:44,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7128 conditions, 4903 events. 950/4903 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 49398 event pairs, 310 based on Foata normal form. 3/4329 useless extension candidates. Maximal degree in co-relation 3734. Up to 1100 conditions per place. [2024-11-24 00:45:44,815 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 35 selfloop transitions, 7 changer transitions 0/139 dead transitions. [2024-11-24 00:45:44,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 139 transitions, 437 flow [2024-11-24 00:45:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:45:44,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 687 transitions. [2024-11-24 00:45:44,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.853416149068323 [2024-11-24 00:45:44,818 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 311 flow. Second operand 7 states and 687 transitions. [2024-11-24 00:45:44,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 139 transitions, 437 flow [2024-11-24 00:45:44,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 139 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:44,829 INFO L231 Difference]: Finished difference. Result has 131 places, 122 transitions, 341 flow [2024-11-24 00:45:44,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=341, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2024-11-24 00:45:44,830 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 14 predicate places. [2024-11-24 00:45:44,831 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 341 flow [2024-11-24 00:45:44,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 00:45:44,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:44,831 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] [2024-11-24 00:45:44,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:45:44,832 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:44,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:44,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1750737891, now seen corresponding path program 1 times [2024-11-24 00:45:44,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:44,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741587119] [2024-11-24 00:45:44,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:45:44,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741587119] [2024-11-24 00:45:44,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741587119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:44,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:44,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:44,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318796573] [2024-11-24 00:45:44,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:44,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:44,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:44,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:44,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:44,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-24 00:45:44,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 00:45:44,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:44,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-24 00:45:44,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:45,601 INFO L124 PetriNetUnfolderBase]: 938/4141 cut-off events. [2024-11-24 00:45:45,601 INFO L125 PetriNetUnfolderBase]: For 1378/1574 co-relation queries the response was YES. [2024-11-24 00:45:45,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6917 conditions, 4141 events. 938/4141 cut-off events. For 1378/1574 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 41402 event pairs, 546 based on Foata normal form. 7/3751 useless extension candidates. Maximal degree in co-relation 6583. Up to 1216 conditions per place. [2024-11-24 00:45:45,637 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 28 selfloop transitions, 9 changer transitions 0/136 dead transitions. [2024-11-24 00:45:45,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 466 flow [2024-11-24 00:45:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:45,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-24 00:45:45,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9043478260869565 [2024-11-24 00:45:45,639 INFO L175 Difference]: Start difference. First operand has 131 places, 122 transitions, 341 flow. Second operand 3 states and 312 transitions. [2024-11-24 00:45:45,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 466 flow [2024-11-24 00:45:45,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 136 transitions, 456 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-24 00:45:45,646 INFO L231 Difference]: Finished difference. Result has 132 places, 129 transitions, 407 flow [2024-11-24 00:45:45,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=132, PETRI_TRANSITIONS=129} [2024-11-24 00:45:45,647 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 15 predicate places. [2024-11-24 00:45:45,647 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 129 transitions, 407 flow [2024-11-24 00:45:45,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 00:45:45,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:45,647 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:45:45,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:45:45,648 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:45,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash 662312961, now seen corresponding path program 1 times [2024-11-24 00:45:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:45,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111857378] [2024-11-24 00:45:45,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:45:45,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111857378] [2024-11-24 00:45:45,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111857378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:45,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:45,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:45:45,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092916603] [2024-11-24 00:45:45,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:45,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:45:45,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:45,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:45:45,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:45,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 115 [2024-11-24 00:45:45,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 129 transitions, 407 flow. Second operand has 8 states, 8 states have (on average 93.625) internal successors, (749), 8 states have internal predecessors, (749), 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 00:45:45,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:45,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 115 [2024-11-24 00:45:45,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:47,242 INFO L124 PetriNetUnfolderBase]: 1210/6294 cut-off events. [2024-11-24 00:45:47,242 INFO L125 PetriNetUnfolderBase]: For 1575/2583 co-relation queries the response was YES. [2024-11-24 00:45:47,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9952 conditions, 6294 events. 1210/6294 cut-off events. For 1575/2583 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 66748 event pairs, 186 based on Foata normal form. 16/5595 useless extension candidates. Maximal degree in co-relation 5342. Up to 927 conditions per place. [2024-11-24 00:45:47,300 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 47 selfloop transitions, 10 changer transitions 0/161 dead transitions. [2024-11-24 00:45:47,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 161 transitions, 589 flow [2024-11-24 00:45:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:45:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:45:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 978 transitions. [2024-11-24 00:45:47,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8504347826086956 [2024-11-24 00:45:47,303 INFO L175 Difference]: Start difference. First operand has 132 places, 129 transitions, 407 flow. Second operand 10 states and 978 transitions. [2024-11-24 00:45:47,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 161 transitions, 589 flow [2024-11-24 00:45:47,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 161 transitions, 571 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:47,313 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 429 flow [2024-11-24 00:45:47,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=429, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-24 00:45:47,315 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 25 predicate places. [2024-11-24 00:45:47,315 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 429 flow [2024-11-24 00:45:47,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 93.625) internal successors, (749), 8 states have internal predecessors, (749), 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 00:45:47,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:47,316 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] [2024-11-24 00:45:47,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:45:47,316 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:47,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:47,317 INFO L85 PathProgramCache]: Analyzing trace with hash 887303415, now seen corresponding path program 1 times [2024-11-24 00:45:47,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:47,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737107706] [2024-11-24 00:45:47,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:47,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:45:47,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:47,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737107706] [2024-11-24 00:45:47,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737107706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:47,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:47,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:47,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123969102] [2024-11-24 00:45:47,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:47,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:47,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:47,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:47,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:47,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 115 [2024-11-24 00:45:47,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 00:45:47,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:47,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 115 [2024-11-24 00:45:47,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:47,625 INFO L124 PetriNetUnfolderBase]: 98/1375 cut-off events. [2024-11-24 00:45:47,626 INFO L125 PetriNetUnfolderBase]: For 315/359 co-relation queries the response was YES. [2024-11-24 00:45:47,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1375 events. 98/1375 cut-off events. For 315/359 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10223 event pairs, 26 based on Foata normal form. 20/1279 useless extension candidates. Maximal degree in co-relation 919. Up to 101 conditions per place. [2024-11-24 00:45:47,633 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 12 selfloop transitions, 6 changer transitions 0/130 dead transitions. [2024-11-24 00:45:47,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 130 transitions, 460 flow [2024-11-24 00:45:47,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2024-11-24 00:45:47,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9304347826086956 [2024-11-24 00:45:47,635 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 429 flow. Second operand 3 states and 321 transitions. [2024-11-24 00:45:47,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 130 transitions, 460 flow [2024-11-24 00:45:47,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 130 transitions, 434 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-24 00:45:47,640 INFO L231 Difference]: Finished difference. Result has 138 places, 125 transitions, 379 flow [2024-11-24 00:45:47,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=138, PETRI_TRANSITIONS=125} [2024-11-24 00:45:47,640 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 21 predicate places. [2024-11-24 00:45:47,640 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 125 transitions, 379 flow [2024-11-24 00:45:47,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 00:45:47,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:47,641 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 00:45:47,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:45:47,641 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:47,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1022185937, now seen corresponding path program 1 times [2024-11-24 00:45:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873467779] [2024-11-24 00:45:47,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:45:47,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:47,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873467779] [2024-11-24 00:45:47,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873467779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:47,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:47,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:47,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566665460] [2024-11-24 00:45:47,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:47,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:47,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:47,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:47,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:47,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-24 00:45:47,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 125 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 00:45:47,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:47,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-24 00:45:47,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:47,928 INFO L124 PetriNetUnfolderBase]: 177/1427 cut-off events. [2024-11-24 00:45:47,929 INFO L125 PetriNetUnfolderBase]: For 733/781 co-relation queries the response was YES. [2024-11-24 00:45:47,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 1427 events. 177/1427 cut-off events. For 733/781 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11055 event pairs, 135 based on Foata normal form. 3/1315 useless extension candidates. Maximal degree in co-relation 2146. Up to 336 conditions per place. [2024-11-24 00:45:47,936 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 23 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2024-11-24 00:45:47,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 130 transitions, 453 flow [2024-11-24 00:45:47,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2024-11-24 00:45:47,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2024-11-24 00:45:47,938 INFO L175 Difference]: Start difference. First operand has 138 places, 125 transitions, 379 flow. Second operand 3 states and 305 transitions. [2024-11-24 00:45:47,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 130 transitions, 453 flow [2024-11-24 00:45:47,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 130 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:45:47,943 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 407 flow [2024-11-24 00:45:47,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2024-11-24 00:45:47,944 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 24 predicate places. [2024-11-24 00:45:47,944 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 407 flow [2024-11-24 00:45:47,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 00:45:47,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:47,945 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:47,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:45:47,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:47,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:47,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1291442243, now seen corresponding path program 1 times [2024-11-24 00:45:47,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:47,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472982400] [2024-11-24 00:45:47,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:47,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:45:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472982400] [2024-11-24 00:45:48,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472982400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:48,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:48,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:45:48,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077718491] [2024-11-24 00:45:48,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:48,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:45:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:48,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:45:48,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:45:48,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2024-11-24 00:45:48,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 407 flow. Second operand has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 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 00:45:48,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:48,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2024-11-24 00:45:48,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:48,616 INFO L124 PetriNetUnfolderBase]: 151/816 cut-off events. [2024-11-24 00:45:48,616 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-24 00:45:48,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1499 conditions, 816 events. 151/816 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4795 event pairs, 0 based on Foata normal form. 20/817 useless extension candidates. Maximal degree in co-relation 1481. Up to 88 conditions per place. [2024-11-24 00:45:48,621 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 50 selfloop transitions, 11 changer transitions 0/125 dead transitions. [2024-11-24 00:45:48,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 498 flow [2024-11-24 00:45:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:45:48,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-24 00:45:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1245 transitions. [2024-11-24 00:45:48,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8327759197324415 [2024-11-24 00:45:48,625 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 407 flow. Second operand 13 states and 1245 transitions. [2024-11-24 00:45:48,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 498 flow [2024-11-24 00:45:48,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 125 transitions, 460 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-24 00:45:48,629 INFO L231 Difference]: Finished difference. Result has 112 places, 86 transitions, 246 flow [2024-11-24 00:45:48,632 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=246, PETRI_PLACES=112, PETRI_TRANSITIONS=86} [2024-11-24 00:45:48,632 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, -5 predicate places. [2024-11-24 00:45:48,633 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 86 transitions, 246 flow [2024-11-24 00:45:48,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 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 00:45:48,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:48,633 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:48,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:45:48,634 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-24 00:45:48,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:48,634 INFO L85 PathProgramCache]: Analyzing trace with hash -752456422, now seen corresponding path program 1 times [2024-11-24 00:45:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:48,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261753633] [2024-11-24 00:45:48,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:48,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:48,663 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:45:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:48,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:45:48,701 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:45:48,701 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-24 00:45:48,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-24 00:45:48,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-24 00:45:48,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-24 00:45:48,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-24 00:45:48,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-24 00:45:48,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-24 00:45:48,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-24 00:45:48,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:45:48,702 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:48,706 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:45:48,706 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-24 00:45:48,740 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-24 00:45:48,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 133 transitions, 306 flow [2024-11-24 00:45:48,823 INFO L124 PetriNetUnfolderBase]: 42/595 cut-off events. [2024-11-24 00:45:48,823 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-24 00:45:48,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 595 events. 42/595 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2189 event pairs, 6 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 365. Up to 32 conditions per place. [2024-11-24 00:45:48,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 133 transitions, 306 flow [2024-11-24 00:45:48,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 133 transitions, 306 flow [2024-11-24 00:45:48,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:48,831 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;@786b2222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:48,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-24 00:45:48,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:45:48,833 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-24 00:45:48,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:45:48,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:48,833 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] [2024-11-24 00:45:48,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:45:48,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1006300152, now seen corresponding path program 1 times [2024-11-24 00:45:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:48,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915037860] [2024-11-24 00:45:48,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:48,874 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 00:45:48,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:48,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915037860] [2024-11-24 00:45:48,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915037860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:48,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:48,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640551578] [2024-11-24 00:45:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:48,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:48,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:48,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:48,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:48,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-24 00:45:48,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 00:45:48,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:48,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-24 00:45:48,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:50,048 INFO L124 PetriNetUnfolderBase]: 2017/8327 cut-off events. [2024-11-24 00:45:50,048 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-24 00:45:50,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11728 conditions, 8327 events. 2017/8327 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 85496 event pairs, 1191 based on Foata normal form. 252/7867 useless extension candidates. Maximal degree in co-relation 5299. Up to 2119 conditions per place. [2024-11-24 00:45:50,102 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2024-11-24 00:45:50,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 142 transitions, 392 flow [2024-11-24 00:45:50,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2024-11-24 00:45:50,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8834586466165414 [2024-11-24 00:45:50,104 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 306 flow. Second operand 4 states and 470 transitions. [2024-11-24 00:45:50,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 142 transitions, 392 flow [2024-11-24 00:45:50,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:45:50,108 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 318 flow [2024-11-24 00:45:50,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-24 00:45:50,108 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 4 predicate places. [2024-11-24 00:45:50,109 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 318 flow [2024-11-24 00:45:50,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 00:45:50,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:50,109 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] [2024-11-24 00:45:50,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:45:50,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:45:50,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:50,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1308380317, now seen corresponding path program 1 times [2024-11-24 00:45:50,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:50,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999718158] [2024-11-24 00:45:50,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:50,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:50,316 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 00:45:50,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:50,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999718158] [2024-11-24 00:45:50,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999718158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:50,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:50,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:45:50,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384562636] [2024-11-24 00:45:50,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:50,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:50,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:50,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:50,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 133 [2024-11-24 00:45:50,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 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 00:45:50,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:50,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 133 [2024-11-24 00:45:50,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:52,443 INFO L124 PetriNetUnfolderBase]: 6248/15894 cut-off events. [2024-11-24 00:45:52,444 INFO L125 PetriNetUnfolderBase]: For 1589/1589 co-relation queries the response was YES. [2024-11-24 00:45:52,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25970 conditions, 15894 events. 6248/15894 cut-off events. For 1589/1589 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 162501 event pairs, 808 based on Foata normal form. 0/14856 useless extension candidates. Maximal degree in co-relation 9040. Up to 6781 conditions per place. [2024-11-24 00:45:52,556 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 62 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2024-11-24 00:45:52,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 163 transitions, 514 flow [2024-11-24 00:45:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:52,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:45:52,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2024-11-24 00:45:52,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8057644110275689 [2024-11-24 00:45:52,559 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 318 flow. Second operand 6 states and 643 transitions. [2024-11-24 00:45:52,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 163 transitions, 514 flow [2024-11-24 00:45:52,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 163 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:52,571 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 320 flow [2024-11-24 00:45:52,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-24 00:45:52,572 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 6 predicate places. [2024-11-24 00:45:52,572 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 320 flow [2024-11-24 00:45:52,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 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 00:45:52,573 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:52,573 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 00:45:52,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:45:52,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:45:52,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash 825973367, now seen corresponding path program 1 times [2024-11-24 00:45:52,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:52,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332754488] [2024-11-24 00:45:52,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:52,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:52,607 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 00:45:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:52,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332754488] [2024-11-24 00:45:52,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332754488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:52,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:52,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:45:52,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913362052] [2024-11-24 00:45:52,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:52,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:52,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:52,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:52,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:52,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:45:52,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 00:45:52,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:52,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:45:52,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:55,444 INFO L124 PetriNetUnfolderBase]: 7178/23603 cut-off events. [2024-11-24 00:45:55,445 INFO L125 PetriNetUnfolderBase]: For 4995/6237 co-relation queries the response was YES. [2024-11-24 00:45:55,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35693 conditions, 23603 events. 7178/23603 cut-off events. For 4995/6237 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 286271 event pairs, 4486 based on Foata normal form. 11/20852 useless extension candidates. Maximal degree in co-relation 12989. Up to 8464 conditions per place. [2024-11-24 00:45:55,609 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 36 selfloop transitions, 7 changer transitions 0/149 dead transitions. [2024-11-24 00:45:55,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 149 transitions, 472 flow [2024-11-24 00:45:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:55,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:45:55,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2024-11-24 00:45:55,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9072681704260651 [2024-11-24 00:45:55,611 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 320 flow. Second operand 3 states and 362 transitions. [2024-11-24 00:45:55,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 149 transitions, 472 flow [2024-11-24 00:45:55,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 149 transitions, 462 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:45:55,615 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 364 flow [2024-11-24 00:45:55,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2024-11-24 00:45:55,616 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 5 predicate places. [2024-11-24 00:45:55,616 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 364 flow [2024-11-24 00:45:55,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 00:45:55,616 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:55,617 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] [2024-11-24 00:45:55,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:45:55,617 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:45:55,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1403098037, now seen corresponding path program 1 times [2024-11-24 00:45:55,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:55,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314638254] [2024-11-24 00:45:55,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:55,675 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 00:45:55,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:55,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314638254] [2024-11-24 00:45:55,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314638254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:55,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:55,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:55,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197162432] [2024-11-24 00:45:55,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:55,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:55,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:55,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:55,716 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-24 00:45:55,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 00:45:55,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:55,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-24 00:45:55,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:45:58,562 INFO L124 PetriNetUnfolderBase]: 5437/19811 cut-off events. [2024-11-24 00:45:58,562 INFO L125 PetriNetUnfolderBase]: For 2734/2800 co-relation queries the response was YES. [2024-11-24 00:45:58,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30233 conditions, 19811 events. 5437/19811 cut-off events. For 2734/2800 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 241450 event pairs, 2945 based on Foata normal form. 259/17673 useless extension candidates. Maximal degree in co-relation 24434. Up to 3835 conditions per place. [2024-11-24 00:45:58,661 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 40 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2024-11-24 00:45:58,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 158 transitions, 506 flow [2024-11-24 00:45:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:45:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2024-11-24 00:45:58,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8966165413533834 [2024-11-24 00:45:58,663 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 364 flow. Second operand 4 states and 477 transitions. [2024-11-24 00:45:58,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 158 transitions, 506 flow [2024-11-24 00:45:58,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 158 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:45:58,680 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 366 flow [2024-11-24 00:45:58,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-24 00:45:58,681 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 7 predicate places. [2024-11-24 00:45:58,681 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 366 flow [2024-11-24 00:45:58,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 00:45:58,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:45:58,682 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] [2024-11-24 00:45:58,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:45:58,683 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:45:58,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1019210350, now seen corresponding path program 1 times [2024-11-24 00:45:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:58,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48503735] [2024-11-24 00:45:58,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:58,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:58,780 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 00:45:58,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:58,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48503735] [2024-11-24 00:45:58,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48503735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:58,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:58,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:58,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143896477] [2024-11-24 00:45:58,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:58,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:58,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:58,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:58,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:58,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:45:58,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 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 00:45:58,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:45:58,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:45:58,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:02,026 INFO L124 PetriNetUnfolderBase]: 6308/24158 cut-off events. [2024-11-24 00:46:02,026 INFO L125 PetriNetUnfolderBase]: For 3185/3185 co-relation queries the response was YES. [2024-11-24 00:46:02,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36542 conditions, 24158 events. 6308/24158 cut-off events. For 3185/3185 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 309684 event pairs, 2802 based on Foata normal form. 3/20930 useless extension candidates. Maximal degree in co-relation 20572. Up to 5820 conditions per place. [2024-11-24 00:46:02,199 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 41 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2024-11-24 00:46:02,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 160 transitions, 508 flow [2024-11-24 00:46:02,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:46:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:46:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 791 transitions. [2024-11-24 00:46:02,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.849624060150376 [2024-11-24 00:46:02,202 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 366 flow. Second operand 7 states and 791 transitions. [2024-11-24 00:46:02,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 160 transitions, 508 flow [2024-11-24 00:46:02,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 160 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:46:02,217 INFO L231 Difference]: Finished difference. Result has 150 places, 141 transitions, 396 flow [2024-11-24 00:46:02,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=396, PETRI_PLACES=150, PETRI_TRANSITIONS=141} [2024-11-24 00:46:02,217 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 14 predicate places. [2024-11-24 00:46:02,218 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 141 transitions, 396 flow [2024-11-24 00:46:02,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 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 00:46:02,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:02,218 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] [2024-11-24 00:46:02,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:46:02,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:02,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:02,219 INFO L85 PathProgramCache]: Analyzing trace with hash -89284045, now seen corresponding path program 1 times [2024-11-24 00:46:02,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071877720] [2024-11-24 00:46:02,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:02,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:02,420 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 00:46:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071877720] [2024-11-24 00:46:02,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071877720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:02,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:02,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:46:02,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123572453] [2024-11-24 00:46:02,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:02,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:02,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:02,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:02,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:46:02,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 141 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 00:46:02,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:02,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:46:02,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:06,401 INFO L124 PetriNetUnfolderBase]: 8620/31172 cut-off events. [2024-11-24 00:46:06,402 INFO L125 PetriNetUnfolderBase]: For 11288/13509 co-relation queries the response was YES. [2024-11-24 00:46:06,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52388 conditions, 31172 events. 8620/31172 cut-off events. For 11288/13509 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 411093 event pairs, 4986 based on Foata normal form. 43/27821 useless extension candidates. Maximal degree in co-relation 51105. Up to 9839 conditions per place. [2024-11-24 00:46:06,598 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 38 selfloop transitions, 11 changer transitions 0/161 dead transitions. [2024-11-24 00:46:06,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 161 transitions, 573 flow [2024-11-24 00:46:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:46:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-24 00:46:06,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-24 00:46:06,599 INFO L175 Difference]: Start difference. First operand has 150 places, 141 transitions, 396 flow. Second operand 3 states and 361 transitions. [2024-11-24 00:46:06,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 161 transitions, 573 flow [2024-11-24 00:46:06,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 161 transitions, 563 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-24 00:46:06,654 INFO L231 Difference]: Finished difference. Result has 151 places, 150 transitions, 482 flow [2024-11-24 00:46:06,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=151, PETRI_TRANSITIONS=150} [2024-11-24 00:46:06,658 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 15 predicate places. [2024-11-24 00:46:06,659 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 150 transitions, 482 flow [2024-11-24 00:46:06,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 00:46:06,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:06,659 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:46:06,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:46:06,659 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:06,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash 86314086, now seen corresponding path program 1 times [2024-11-24 00:46:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578972621] [2024-11-24 00:46:06,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:06,803 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 00:46:06,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:06,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578972621] [2024-11-24 00:46:06,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578972621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:06,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:06,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:46:06,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780093005] [2024-11-24 00:46:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:06,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:46:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:06,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:46:06,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:46:06,924 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:46:06,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 150 transitions, 482 flow. Second operand has 8 states, 8 states have (on average 107.625) internal successors, (861), 8 states have internal predecessors, (861), 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 00:46:06,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:06,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:46:06,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:12,337 INFO L124 PetriNetUnfolderBase]: 9234/37130 cut-off events. [2024-11-24 00:46:12,337 INFO L125 PetriNetUnfolderBase]: For 10531/21435 co-relation queries the response was YES. [2024-11-24 00:46:12,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60596 conditions, 37130 events. 9234/37130 cut-off events. For 10531/21435 co-relation queries the response was YES. Maximal size of possible extension queue 1142. Compared 514658 event pairs, 2450 based on Foata normal form. 33/32098 useless extension candidates. Maximal degree in co-relation 28374. Up to 8114 conditions per place. [2024-11-24 00:46:12,585 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 55 selfloop transitions, 10 changer transitions 0/186 dead transitions. [2024-11-24 00:46:12,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 186 transitions, 694 flow [2024-11-24 00:46:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:46:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:46:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1126 transitions. [2024-11-24 00:46:12,587 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8466165413533835 [2024-11-24 00:46:12,587 INFO L175 Difference]: Start difference. First operand has 151 places, 150 transitions, 482 flow. Second operand 10 states and 1126 transitions. [2024-11-24 00:46:12,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 186 transitions, 694 flow [2024-11-24 00:46:12,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 186 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:46:12,642 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 508 flow [2024-11-24 00:46:12,642 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=508, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2024-11-24 00:46:12,643 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 25 predicate places. [2024-11-24 00:46:12,643 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 508 flow [2024-11-24 00:46:12,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.625) internal successors, (861), 8 states have internal predecessors, (861), 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 00:46:12,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:12,644 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] [2024-11-24 00:46:12,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:46:12,644 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:12,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash 980985255, now seen corresponding path program 1 times [2024-11-24 00:46:12,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:12,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906203965] [2024-11-24 00:46:12,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:12,716 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 00:46:12,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:12,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906203965] [2024-11-24 00:46:12,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906203965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:12,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:12,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:46:12,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147503076] [2024-11-24 00:46:12,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:12,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:12,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:12,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:12,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:12,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 133 [2024-11-24 00:46:12,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 00:46:12,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:12,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 133 [2024-11-24 00:46:12,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:13,563 INFO L124 PetriNetUnfolderBase]: 531/5139 cut-off events. [2024-11-24 00:46:13,563 INFO L125 PetriNetUnfolderBase]: For 1397/1576 co-relation queries the response was YES. [2024-11-24 00:46:13,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7676 conditions, 5139 events. 531/5139 cut-off events. For 1397/1576 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 55970 event pairs, 193 based on Foata normal form. 140/4810 useless extension candidates. Maximal degree in co-relation 3626. Up to 422 conditions per place. [2024-11-24 00:46:13,586 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 16 selfloop transitions, 8 changer transitions 0/151 dead transitions. [2024-11-24 00:46:13,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 151 transitions, 549 flow [2024-11-24 00:46:13,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:46:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2024-11-24 00:46:13,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9273182957393483 [2024-11-24 00:46:13,588 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 508 flow. Second operand 3 states and 370 transitions. [2024-11-24 00:46:13,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 151 transitions, 549 flow [2024-11-24 00:46:13,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 151 transitions, 523 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-24 00:46:13,598 INFO L231 Difference]: Finished difference. Result has 157 places, 144 transitions, 444 flow [2024-11-24 00:46:13,598 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=157, PETRI_TRANSITIONS=144} [2024-11-24 00:46:13,599 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 21 predicate places. [2024-11-24 00:46:13,599 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 144 transitions, 444 flow [2024-11-24 00:46:13,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 00:46:13,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:13,600 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-24 00:46:13,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:46:13,600 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:13,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash -618880762, now seen corresponding path program 1 times [2024-11-24 00:46:13,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:13,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462320755] [2024-11-24 00:46:13,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:13,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:13,655 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 00:46:13,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:13,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462320755] [2024-11-24 00:46:13,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462320755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:13,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:13,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:46:13,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900667507] [2024-11-24 00:46:13,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:13,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:13,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:13,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:13,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:13,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:46:13,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 144 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 00:46:13,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:13,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:46:13,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:14,666 INFO L124 PetriNetUnfolderBase]: 934/6027 cut-off events. [2024-11-24 00:46:14,667 INFO L125 PetriNetUnfolderBase]: For 3693/3795 co-relation queries the response was YES. [2024-11-24 00:46:14,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10594 conditions, 6027 events. 934/6027 cut-off events. For 3693/3795 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 68431 event pairs, 666 based on Foata normal form. 4/5496 useless extension candidates. Maximal degree in co-relation 3854. Up to 1548 conditions per place. [2024-11-24 00:46:14,712 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2024-11-24 00:46:14,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 151 transitions, 548 flow [2024-11-24 00:46:14,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:46:14,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-11-24 00:46:14,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8796992481203008 [2024-11-24 00:46:14,714 INFO L175 Difference]: Start difference. First operand has 157 places, 144 transitions, 444 flow. Second operand 3 states and 351 transitions. [2024-11-24 00:46:14,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 151 transitions, 548 flow [2024-11-24 00:46:14,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 151 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:46:14,719 INFO L231 Difference]: Finished difference. Result has 160 places, 147 transitions, 470 flow [2024-11-24 00:46:14,719 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=160, PETRI_TRANSITIONS=147} [2024-11-24 00:46:14,719 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 24 predicate places. [2024-11-24 00:46:14,719 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 147 transitions, 470 flow [2024-11-24 00:46:14,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 00:46:14,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:14,720 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:14,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:46:14,720 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:14,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1870399981, now seen corresponding path program 1 times [2024-11-24 00:46:14,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:14,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207086634] [2024-11-24 00:46:14,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:14,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:15,000 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 00:46:15,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:15,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207086634] [2024-11-24 00:46:15,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207086634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:15,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:15,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:46:15,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614365567] [2024-11-24 00:46:15,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:15,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:46:15,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:15,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:46:15,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:46:15,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-24 00:46:15,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 147 transitions, 470 flow. Second operand has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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 00:46:15,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:15,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-24 00:46:15,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:16,510 INFO L124 PetriNetUnfolderBase]: 1216/8418 cut-off events. [2024-11-24 00:46:16,510 INFO L125 PetriNetUnfolderBase]: For 3392/3658 co-relation queries the response was YES. [2024-11-24 00:46:16,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13831 conditions, 8418 events. 1216/8418 cut-off events. For 3392/3658 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 91293 event pairs, 207 based on Foata normal form. 20/7681 useless extension candidates. Maximal degree in co-relation 5591. Up to 893 conditions per place. [2024-11-24 00:46:16,559 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 76 selfloop transitions, 14 changer transitions 1/205 dead transitions. [2024-11-24 00:46:16,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 205 transitions, 828 flow [2024-11-24 00:46:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:46:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-24 00:46:16,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1457 transitions. [2024-11-24 00:46:16,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426836321573163 [2024-11-24 00:46:16,562 INFO L175 Difference]: Start difference. First operand has 160 places, 147 transitions, 470 flow. Second operand 13 states and 1457 transitions. [2024-11-24 00:46:16,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 205 transitions, 828 flow [2024-11-24 00:46:16,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 205 transitions, 816 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-24 00:46:16,571 INFO L231 Difference]: Finished difference. Result has 174 places, 150 transitions, 520 flow [2024-11-24 00:46:16,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=520, PETRI_PLACES=174, PETRI_TRANSITIONS=150} [2024-11-24 00:46:16,572 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 38 predicate places. [2024-11-24 00:46:16,572 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 150 transitions, 520 flow [2024-11-24 00:46:16,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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 00:46:16,573 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:16,573 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:16,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:46:16,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:16,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:16,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1990299710, now seen corresponding path program 1 times [2024-11-24 00:46:16,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:16,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609580039] [2024-11-24 00:46:16,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:16,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:16,635 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 00:46:16,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:16,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609580039] [2024-11-24 00:46:16,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609580039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:16,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:16,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:46:16,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709528169] [2024-11-24 00:46:16,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:16,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:16,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:16,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:16,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:16,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:46:16,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 150 transitions, 520 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 00:46:16,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:16,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:46:16,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:17,793 INFO L124 PetriNetUnfolderBase]: 883/5710 cut-off events. [2024-11-24 00:46:17,793 INFO L125 PetriNetUnfolderBase]: For 4093/4189 co-relation queries the response was YES. [2024-11-24 00:46:17,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 5710 events. 883/5710 cut-off events. For 4093/4189 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 62739 event pairs, 677 based on Foata normal form. 4/5205 useless extension candidates. Maximal degree in co-relation 9769. Up to 1476 conditions per place. [2024-11-24 00:46:17,813 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2024-11-24 00:46:17,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 156 transitions, 615 flow [2024-11-24 00:46:17,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:46:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-24 00:46:17,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2024-11-24 00:46:17,814 INFO L175 Difference]: Start difference. First operand has 174 places, 150 transitions, 520 flow. Second operand 3 states and 350 transitions. [2024-11-24 00:46:17,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 156 transitions, 615 flow [2024-11-24 00:46:17,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 156 transitions, 585 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-24 00:46:17,825 INFO L231 Difference]: Finished difference. Result has 170 places, 153 transitions, 526 flow [2024-11-24 00:46:17,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=170, PETRI_TRANSITIONS=153} [2024-11-24 00:46:17,825 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 34 predicate places. [2024-11-24 00:46:17,826 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 153 transitions, 526 flow [2024-11-24 00:46:17,826 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 00:46:17,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:17,826 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 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 00:46:17,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:46:17,826 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:17,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1525930503, now seen corresponding path program 1 times [2024-11-24 00:46:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002794849] [2024-11-24 00:46:17,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:18,192 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 00:46:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002794849] [2024-11-24 00:46:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002794849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:46:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212984012] [2024-11-24 00:46:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:18,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:46:18,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:18,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:46:18,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:46:18,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 133 [2024-11-24 00:46:18,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 153 transitions, 526 flow. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 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 00:46:18,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:18,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 133 [2024-11-24 00:46:18,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:19,797 INFO L124 PetriNetUnfolderBase]: 2726/11410 cut-off events. [2024-11-24 00:46:19,797 INFO L125 PetriNetUnfolderBase]: For 4357/4642 co-relation queries the response was YES. [2024-11-24 00:46:19,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21748 conditions, 11410 events. 2726/11410 cut-off events. For 4357/4642 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 124665 event pairs, 1342 based on Foata normal form. 0/10706 useless extension candidates. Maximal degree in co-relation 19455. Up to 2509 conditions per place. [2024-11-24 00:46:19,873 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 59 selfloop transitions, 6 changer transitions 0/184 dead transitions. [2024-11-24 00:46:19,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 184 transitions, 750 flow [2024-11-24 00:46:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:46:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:46:19,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-24 00:46:19,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.818295739348371 [2024-11-24 00:46:19,874 INFO L175 Difference]: Start difference. First operand has 170 places, 153 transitions, 526 flow. Second operand 6 states and 653 transitions. [2024-11-24 00:46:19,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 184 transitions, 750 flow [2024-11-24 00:46:19,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 184 transitions, 736 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-24 00:46:19,908 INFO L231 Difference]: Finished difference. Result has 172 places, 152 transitions, 522 flow [2024-11-24 00:46:19,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=172, PETRI_TRANSITIONS=152} [2024-11-24 00:46:19,909 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 36 predicate places. [2024-11-24 00:46:19,909 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 152 transitions, 522 flow [2024-11-24 00:46:19,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 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 00:46:19,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:19,910 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:19,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 00:46:19,910 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:19,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2073254805, now seen corresponding path program 1 times [2024-11-24 00:46:19,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:19,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181943509] [2024-11-24 00:46:19,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:20,197 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 00:46:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181943509] [2024-11-24 00:46:20,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181943509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:20,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:20,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:46:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980090792] [2024-11-24 00:46:20,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:20,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:46:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:20,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:46:20,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:46:20,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-24 00:46:20,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 152 transitions, 522 flow. Second operand has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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 00:46:20,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:20,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-24 00:46:20,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:22,064 INFO L124 PetriNetUnfolderBase]: 1190/7818 cut-off events. [2024-11-24 00:46:22,064 INFO L125 PetriNetUnfolderBase]: For 4028/4256 co-relation queries the response was YES. [2024-11-24 00:46:22,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14600 conditions, 7818 events. 1190/7818 cut-off events. For 4028/4256 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 84080 event pairs, 165 based on Foata normal form. 48/7298 useless extension candidates. Maximal degree in co-relation 5054. Up to 557 conditions per place. [2024-11-24 00:46:22,112 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 90 selfloop transitions, 16 changer transitions 8/229 dead transitions. [2024-11-24 00:46:22,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 229 transitions, 978 flow [2024-11-24 00:46:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:46:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-24 00:46:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1795 transitions. [2024-11-24 00:46:22,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8435150375939849 [2024-11-24 00:46:22,115 INFO L175 Difference]: Start difference. First operand has 172 places, 152 transitions, 522 flow. Second operand 16 states and 1795 transitions. [2024-11-24 00:46:22,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 229 transitions, 978 flow [2024-11-24 00:46:22,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 229 transitions, 958 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-24 00:46:22,126 INFO L231 Difference]: Finished difference. Result has 178 places, 150 transitions, 522 flow [2024-11-24 00:46:22,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=522, PETRI_PLACES=178, PETRI_TRANSITIONS=150} [2024-11-24 00:46:22,127 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 42 predicate places. [2024-11-24 00:46:22,127 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 150 transitions, 522 flow [2024-11-24 00:46:22,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 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 00:46:22,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:22,128 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:22,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:46:22,128 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:22,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:22,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1515218150, now seen corresponding path program 1 times [2024-11-24 00:46:22,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:22,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813039265] [2024-11-24 00:46:22,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:22,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:22,190 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 00:46:22,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:22,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813039265] [2024-11-24 00:46:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813039265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:22,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:46:22,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985220254] [2024-11-24 00:46:22,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:22,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:22,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:22,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:22,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-24 00:46:22,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 150 transitions, 522 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 00:46:22,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:22,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-24 00:46:22,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:23,409 INFO L124 PetriNetUnfolderBase]: 1353/8934 cut-off events. [2024-11-24 00:46:23,409 INFO L125 PetriNetUnfolderBase]: For 5201/5285 co-relation queries the response was YES. [2024-11-24 00:46:23,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16800 conditions, 8934 events. 1353/8934 cut-off events. For 5201/5285 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 106401 event pairs, 605 based on Foata normal form. 0/8374 useless extension candidates. Maximal degree in co-relation 16013. Up to 1591 conditions per place. [2024-11-24 00:46:23,448 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 30 selfloop transitions, 9 changer transitions 1/163 dead transitions. [2024-11-24 00:46:23,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 163 transitions, 656 flow [2024-11-24 00:46:23,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:23,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:46:23,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-24 00:46:23,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-24 00:46:23,449 INFO L175 Difference]: Start difference. First operand has 178 places, 150 transitions, 522 flow. Second operand 3 states and 361 transitions. [2024-11-24 00:46:23,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 163 transitions, 656 flow [2024-11-24 00:46:23,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 163 transitions, 588 flow, removed 6 selfloop flow, removed 21 redundant places. [2024-11-24 00:46:23,502 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 530 flow [2024-11-24 00:46:23,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2024-11-24 00:46:23,502 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 25 predicate places. [2024-11-24 00:46:23,502 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 530 flow [2024-11-24 00:46:23,502 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 00:46:23,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:23,503 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:23,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:46:23,503 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:23,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:23,503 INFO L85 PathProgramCache]: Analyzing trace with hash 866412403, now seen corresponding path program 1 times [2024-11-24 00:46:23,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:23,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135516951] [2024-11-24 00:46:23,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:23,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:23,697 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 00:46:23,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:23,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135516951] [2024-11-24 00:46:23,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135516951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:23,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:23,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:46:23,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209429481] [2024-11-24 00:46:23,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:23,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:46:23,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:23,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:46:23,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:46:23,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-24 00:46:23,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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 00:46:23,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:23,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-24 00:46:23,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:24,811 INFO L124 PetriNetUnfolderBase]: 1110/5875 cut-off events. [2024-11-24 00:46:24,811 INFO L125 PetriNetUnfolderBase]: For 3503/3699 co-relation queries the response was YES. [2024-11-24 00:46:24,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10999 conditions, 5875 events. 1110/5875 cut-off events. For 3503/3699 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 59267 event pairs, 310 based on Foata normal form. 80/5835 useless extension candidates. Maximal degree in co-relation 10335. Up to 748 conditions per place. [2024-11-24 00:46:24,840 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 63 selfloop transitions, 7 changer transitions 8/206 dead transitions. [2024-11-24 00:46:24,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 206 transitions, 852 flow [2024-11-24 00:46:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:46:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:46:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 821 transitions. [2024-11-24 00:46:24,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8818474758324383 [2024-11-24 00:46:24,842 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 530 flow. Second operand 7 states and 821 transitions. [2024-11-24 00:46:24,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 206 transitions, 852 flow [2024-11-24 00:46:24,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 206 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:46:24,850 INFO L231 Difference]: Finished difference. Result has 168 places, 157 transitions, 548 flow [2024-11-24 00:46:24,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=548, PETRI_PLACES=168, PETRI_TRANSITIONS=157} [2024-11-24 00:46:24,851 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 32 predicate places. [2024-11-24 00:46:24,851 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 157 transitions, 548 flow [2024-11-24 00:46:24,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 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 00:46:24,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:24,851 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:24,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:46:24,852 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:24,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:24,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1291207740, now seen corresponding path program 1 times [2024-11-24 00:46:24,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129822046] [2024-11-24 00:46:24,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:46:25,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:25,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129822046] [2024-11-24 00:46:25,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129822046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:25,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:25,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:46:25,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013510782] [2024-11-24 00:46:25,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:25,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:46:25,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:25,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:46:25,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:46:25,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-24 00:46:25,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 157 transitions, 548 flow. Second operand has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 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 00:46:25,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:46:25,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-24 00:46:25,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:46:26,177 INFO L124 PetriNetUnfolderBase]: 1050/4123 cut-off events. [2024-11-24 00:46:26,177 INFO L125 PetriNetUnfolderBase]: For 2254/2282 co-relation queries the response was YES. [2024-11-24 00:46:26,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8358 conditions, 4123 events. 1050/4123 cut-off events. For 2254/2282 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 34961 event pairs, 84 based on Foata normal form. 48/4135 useless extension candidates. Maximal degree in co-relation 7690. Up to 518 conditions per place. [2024-11-24 00:46:26,195 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 88 selfloop transitions, 10 changer transitions 17/234 dead transitions. [2024-11-24 00:46:26,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 234 transitions, 1004 flow [2024-11-24 00:46:26,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:46:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:46:26,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1158 transitions. [2024-11-24 00:46:26,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8706766917293233 [2024-11-24 00:46:26,198 INFO L175 Difference]: Start difference. First operand has 168 places, 157 transitions, 548 flow. Second operand 10 states and 1158 transitions. [2024-11-24 00:46:26,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 234 transitions, 1004 flow [2024-11-24 00:46:26,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 234 transitions, 994 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-24 00:46:26,211 INFO L231 Difference]: Finished difference. Result has 178 places, 151 transitions, 552 flow [2024-11-24 00:46:26,211 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=552, PETRI_PLACES=178, PETRI_TRANSITIONS=151} [2024-11-24 00:46:26,212 INFO L279 CegarLoopForPetriNet]: 136 programPoint places, 42 predicate places. [2024-11-24 00:46:26,212 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 151 transitions, 552 flow [2024-11-24 00:46:26,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 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 00:46:26,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:46:26,213 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:26,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:46:26,213 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:46:26,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2085433448, now seen corresponding path program 1 times [2024-11-24 00:46:26,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:26,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736045147] [2024-11-24 00:46:26,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:46:26,261 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:46:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:46:26,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:46:26,349 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-24 00:46:26,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-24 00:46:26,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-24 00:46:26,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:46:26,351 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:26,578 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-24 00:46:26,583 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:46:26,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:46:26 BasicIcfg [2024-11-24 00:46:26,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:46:26,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:46:26,595 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:46:26,595 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:46:26,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:34" (3/4) ... [2024-11-24 00:46:26,597 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 00:46:26,744 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 10. [2024-11-24 00:46:26,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:46:26,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:46:26,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:46:26,801 INFO L158 Benchmark]: Toolchain (without parser) took 53478.60ms. Allocated memory was 117.4MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 91.0MB in the beginning and 6.4GB in the end (delta: -6.3GB). Peak memory consumption was 4.1GB. Max. memory is 16.1GB. [2024-11-24 00:46:26,801 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 98.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:46:26,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.93ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 71.5MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:46:26,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.65ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:46:26,802 INFO L158 Benchmark]: Boogie Preprocessor took 33.06ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:46:26,802 INFO L158 Benchmark]: RCFGBuilder took 532.15ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 54.2MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:46:26,802 INFO L158 Benchmark]: TraceAbstraction took 52162.08ms. Allocated memory was 117.4MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 53.6MB in the beginning and 6.4GB in the end (delta: -6.4GB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. [2024-11-24 00:46:26,803 INFO L158 Benchmark]: Witness Printer took 205.69ms. Allocated memory is still 10.5GB. Free memory was 6.4GB in the beginning and 6.4GB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-24 00:46:26,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 98.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.93ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 71.5MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.65ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.06ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 532.15ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 54.2MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 52162.08ms. Allocated memory was 117.4MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 53.6MB in the beginning and 6.4GB in the end (delta: -6.4GB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. * Witness Printer took 205.69ms. Allocated memory is still 10.5GB. Free memory was 6.4GB in the beginning and 6.4GB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 685]: Data race detected Data race detected The following path leads to a data race: [L681] 0 int data = 0; VAL [data=0] [L682] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L690] 0 int threads_total = 4; VAL [data=0, data_mutex={1:0}, threads_total=4] [L691] 0 pthread_t tids[4]; VAL [data=0, data_mutex={1:0}, threads_total=4, tids={17:0}] [L692] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L685] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 3 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L687] 1 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={17:0}] [L692] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={17:0}] [L695] 0 int i = 0; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L687] 2 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L696] FCALL, JOIN 2 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L687] 3 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L696] FCALL, JOIN 3 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L695] COND FALSE 0 !(i < threads_total - 1) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L698] 0 return data; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=4, tids={17:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [698] and C: data = __VERIFIER_nondet_int() [685] - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 10 mSDtfsCounter, 349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 111 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 453 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 308 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 673 IncrementalHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 38 mSDtfsCounter, 673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 15/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 128 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.2s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 777 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 572 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1149 IncrementalHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 68 mSDtfsCounter, 1149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=7, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 1292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 39/39 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 145 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 37.6s, OverallIterations: 17, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 34.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1612 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1270 mSDsluCounter, 363 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2867 IncrementalHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 105 mSDtfsCounter, 2867 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=16, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1325 NumberOfCodeBlocks, 1325 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1130 ConstructedInterpolants, 0 QuantifiedInterpolants, 3022 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-24 00:46:26,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3541eb-c1f2-4427-8133-39058355c248/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)