./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:21:24,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:21:24,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:21:24,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:21:24,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:21:24,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:21:24,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:21:24,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:21:24,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:21:24,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:21:24,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:21:24,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:21:24,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:21:24,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:21:24,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:21:24,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:21:24,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:21:24,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:21:24,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:21:24,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:21:24,284 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_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2024-11-13 15:21:24,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:21:24,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:21:24,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:21:24,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:21:24,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:21:24,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-atomic/scull.i Unable to find full path for "g++" [2024-11-13 15:21:26,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:21:26,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:21:26,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/sv-benchmarks/c/pthread-atomic/scull.i [2024-11-13 15:21:26,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/data/a931e84c2/6d062f318ba443eea24e369690af9eca/FLAG680331081 [2024-11-13 15:21:26,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/data/a931e84c2/6d062f318ba443eea24e369690af9eca [2024-11-13 15:21:26,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:21:26,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:21:26,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:21:26,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:21:26,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:21:26,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:21:26" (1/1) ... [2024-11-13 15:21:26,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44654a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:26, skipping insertion in model container [2024-11-13 15:21:26,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:21:26" (1/1) ... [2024-11-13 15:21:26,988 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:21:27,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:21:27,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:21:27,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:21:27,515 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:21:27,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27 WrapperNode [2024-11-13 15:21:27,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:21:27,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:21:27,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:21:27,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:21:27,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,610 INFO L138 Inliner]: procedures = 188, calls = 58, calls flagged for inlining = 32, calls inlined = 29, statements flattened = 534 [2024-11-13 15:21:27,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:21:27,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:21:27,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:21:27,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:21:27,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:21:27,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:21:27,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:21:27,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:21:27,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (1/1) ... [2024-11-13 15:21:27,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:21:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:21:27,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:21:27,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe43bdb-4d5f-42d5-a0d8-f5e63ce0164b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:21:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 15:21:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 15:21:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 15:21:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 15:21:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:21:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:21:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2024-11-13 15:21:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2024-11-13 15:21:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:21:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:21:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:21:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:21:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:21:27,761 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:21:28,003 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:21:28,007 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: havoc scull_trim_#t~nondet9#1, scull_trim_#t~nondet10#1, scull_trim_#t~nondet11#1, scull_trim_#t~nondet12#1, scull_trim_~dev#1, scull_trim_~qset~0#1; [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_trim_#in~dev#1;assume { :end_inline_scull_trim } true; [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: assume -2147483648 <= scull_cleanup_module_#t~ret43#1 && scull_cleanup_module_#t~ret43#1 <= 2147483647; [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-3: havoc scull_cleanup_module_#t~ret43#1; [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: havoc scull_cleanup_module_#t~nondet42#1, scull_cleanup_module_#t~ret43#1, scull_cleanup_module_~dev~4#1;assume { :end_inline_scull_cleanup_module } true; [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret43#1 := scull_trim_#res#1; [2024-11-13 15:21:28,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2024-11-13 15:21:29,020 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:21:29,020 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:21:29,104 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:21:29,104 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:21:29,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:21:29 BoogieIcfgContainer [2024-11-13 15:21:29,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:21:29,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:21:29,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:21:29,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:21:29,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:21:26" (1/3) ... [2024-11-13 15:21:29,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185aa308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:21:29, skipping insertion in model container [2024-11-13 15:21:29,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:27" (2/3) ... [2024-11-13 15:21:29,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185aa308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:21:29, skipping insertion in model container [2024-11-13 15:21:29,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:21:29" (3/3) ... [2024-11-13 15:21:29,117 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2024-11-13 15:21:29,137 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:21:29,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG scull.i that has 4 procedures, 574 locations, 1 initial locations, 0 loop locations, and 42 error locations. [2024-11-13 15:21:29,139 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:21:29,417 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:21:29,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 593 transitions, 1207 flow [2024-11-13 15:21:30,007 INFO L124 PetriNetUnfolderBase]: 20/590 cut-off events. [2024-11-13 15:21:30,010 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 15:21:30,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 590 events. 20/590 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1786 event pairs, 0 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 545. Up to 4 conditions per place. [2024-11-13 15:21:30,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 593 transitions, 1207 flow [2024-11-13 15:21:30,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 575 places, 585 transitions, 1185 flow [2024-11-13 15:21:30,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:21:30,086 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;@1ac2fd3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:21:30,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-11-13 15:21:30,112 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:21:30,114 INFO L124 PetriNetUnfolderBase]: 0/94 cut-off events. [2024-11-13 15:21:30,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:21:30,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:30,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:21:30,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-13 15:21:30,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1655977096, now seen corresponding path program 1 times [2024-11-13 15:21:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:30,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530876292] [2024-11-13 15:21:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:30,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:21:30,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:30,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530876292] [2024-11-13 15:21:30,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530876292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:30,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:30,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:21:30,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821945301] [2024-11-13 15:21:30,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:30,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:21:30,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:30,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:21:30,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:21:30,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 593 [2024-11-13 15:21:30,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 585 transitions, 1185 flow. Second operand has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:30,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:30,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 593 [2024-11-13 15:21:30,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:32,012 INFO L124 PetriNetUnfolderBase]: 246/4303 cut-off events. [2024-11-13 15:21:32,012 INFO L125 PetriNetUnfolderBase]: For 182/187 co-relation queries the response was YES. [2024-11-13 15:21:32,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4627 conditions, 4303 events. 246/4303 cut-off events. For 182/187 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 35997 event pairs, 66 based on Foata normal form. 94/3898 useless extension candidates. Maximal degree in co-relation 4329. Up to 241 conditions per place. [2024-11-13 15:21:32,089 INFO L140 encePairwiseOnDemand]: 581/593 looper letters, 19 selfloop transitions, 2 changer transitions 0/571 dead transitions. [2024-11-13 15:21:32,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 571 transitions, 1205 flow [2024-11-13 15:21:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:21:32,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:21:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1714 transitions. [2024-11-13 15:21:32,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9634626194491287 [2024-11-13 15:21:32,120 INFO L175 Difference]: Start difference. First operand has 575 places, 585 transitions, 1185 flow. Second operand 3 states and 1714 transitions. [2024-11-13 15:21:32,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 571 transitions, 1205 flow [2024-11-13 15:21:32,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 571 transitions, 1193 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:21:32,151 INFO L231 Difference]: Finished difference. Result has 563 places, 569 transitions, 1154 flow [2024-11-13 15:21:32,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1154, PETRI_PLACES=563, PETRI_TRANSITIONS=569} [2024-11-13 15:21:32,161 INFO L277 CegarLoopForPetriNet]: 575 programPoint places, -12 predicate places. [2024-11-13 15:21:32,161 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 569 transitions, 1154 flow [2024-11-13 15:21:32,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:32,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:32,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:21:32,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:21:32,164 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-13 15:21:32,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1029279352, now seen corresponding path program 1 times [2024-11-13 15:21:32,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:32,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215594778] [2024-11-13 15:21:32,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:32,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:21:32,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:32,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215594778] [2024-11-13 15:21:32,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215594778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:32,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:32,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:21:32,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76193780] [2024-11-13 15:21:32,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:32,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:21:32,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:32,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:21:32,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:21:32,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 549 out of 593 [2024-11-13 15:21:32,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 569 transitions, 1154 flow. Second operand has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:32,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:32,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 549 of 593 [2024-11-13 15:21:32,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:38,028 INFO L124 PetriNetUnfolderBase]: 2553/27235 cut-off events. [2024-11-13 15:21:38,028 INFO L125 PetriNetUnfolderBase]: For 285/296 co-relation queries the response was YES. [2024-11-13 15:21:38,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30519 conditions, 27235 events. 2553/27235 cut-off events. For 285/296 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 362110 event pairs, 583 based on Foata normal form. 0/23929 useless extension candidates. Maximal degree in co-relation 28816. Up to 2002 conditions per place. [2024-11-13 15:21:38,272 INFO L140 encePairwiseOnDemand]: 575/593 looper letters, 43 selfloop transitions, 13 changer transitions 0/594 dead transitions. [2024-11-13 15:21:38,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 594 transitions, 1321 flow [2024-11-13 15:21:38,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:21:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:21:38,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1708 transitions. [2024-11-13 15:21:38,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9600899381675099 [2024-11-13 15:21:38,282 INFO L175 Difference]: Start difference. First operand has 563 places, 569 transitions, 1154 flow. Second operand 3 states and 1708 transitions. [2024-11-13 15:21:38,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 594 transitions, 1321 flow [2024-11-13 15:21:38,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 594 transitions, 1321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:21:38,295 INFO L231 Difference]: Finished difference. Result has 567 places, 582 transitions, 1268 flow [2024-11-13 15:21:38,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1268, PETRI_PLACES=567, PETRI_TRANSITIONS=582} [2024-11-13 15:21:38,297 INFO L277 CegarLoopForPetriNet]: 575 programPoint places, -8 predicate places. [2024-11-13 15:21:38,297 INFO L471 AbstractCegarLoop]: Abstraction has has 567 places, 582 transitions, 1268 flow [2024-11-13 15:21:38,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:38,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:38,299 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:21:38,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:21:38,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-13 15:21:38,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:38,300 INFO L85 PathProgramCache]: Analyzing trace with hash -20472234, now seen corresponding path program 1 times [2024-11-13 15:21:38,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:38,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96554784] [2024-11-13 15:21:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:21:38,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:38,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96554784] [2024-11-13 15:21:38,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96554784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:38,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:38,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:21:38,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390438973] [2024-11-13 15:21:38,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:38,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:21:38,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:38,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:21:38,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:21:38,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 593 [2024-11-13 15:21:38,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 582 transitions, 1268 flow. Second operand has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:38,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:38,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 593 [2024-11-13 15:21:38,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:46,028 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][377], [588#(= |#race~i~0| 0), Black: 590#true, 592#(= |#race~dev_qset~0| 0), 427#L781-4true, 449#L748-4true, 91#L721-2true, 325#L930-4true, 595#true, Black: 586#true, 580#true]) [2024-11-13 15:21:46,029 INFO L294 olderBase$Statistics]: this new event has 279 ancestors and is cut-off event [2024-11-13 15:21:46,029 INFO L297 olderBase$Statistics]: existing Event has 181 ancestors and is cut-off event [2024-11-13 15:21:46,029 INFO L297 olderBase$Statistics]: existing Event has 181 ancestors and is cut-off event [2024-11-13 15:21:46,029 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2024-11-13 15:21:46,088 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1693] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][377], [588#(= |#race~i~0| 0), 543#L748-5true, Black: 590#true, 592#(= |#race~dev_qset~0| 0), 427#L781-4true, 91#L721-2true, 325#L930-4true, 595#true, Black: 586#true, 580#true]) [2024-11-13 15:21:46,089 INFO L294 olderBase$Statistics]: this new event has 280 ancestors and is cut-off event [2024-11-13 15:21:46,089 INFO L297 olderBase$Statistics]: existing Event has 182 ancestors and is cut-off event [2024-11-13 15:21:46,089 INFO L297 olderBase$Statistics]: existing Event has 182 ancestors and is cut-off event [2024-11-13 15:21:46,089 INFO L297 olderBase$Statistics]: existing Event has 231 ancestors and is cut-off event [2024-11-13 15:21:47,593 INFO L124 PetriNetUnfolderBase]: 5656/54680 cut-off events. [2024-11-13 15:21:47,593 INFO L125 PetriNetUnfolderBase]: For 1211/1232 co-relation queries the response was YES. [2024-11-13 15:21:47,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64680 conditions, 54680 events. 5656/54680 cut-off events. For 1211/1232 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 826862 event pairs, 2651 based on Foata normal form. 0/47694 useless extension candidates. Maximal degree in co-relation 34430. Up to 5376 conditions per place. [2024-11-13 15:21:48,254 INFO L140 encePairwiseOnDemand]: 582/593 looper letters, 36 selfloop transitions, 10 changer transitions 0/601 dead transitions. [2024-11-13 15:21:48,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 601 transitions, 1401 flow [2024-11-13 15:21:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:21:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:21:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1706 transitions. [2024-11-13 15:21:48,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9589657110736369 [2024-11-13 15:21:48,259 INFO L175 Difference]: Start difference. First operand has 567 places, 582 transitions, 1268 flow. Second operand 3 states and 1706 transitions. [2024-11-13 15:21:48,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 601 transitions, 1401 flow [2024-11-13 15:21:48,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 601 transitions, 1375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:21:48,306 INFO L231 Difference]: Finished difference. Result has 569 places, 591 transitions, 1320 flow [2024-11-13 15:21:48,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=1242, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1320, PETRI_PLACES=569, PETRI_TRANSITIONS=591} [2024-11-13 15:21:48,309 INFO L277 CegarLoopForPetriNet]: 575 programPoint places, -6 predicate places. [2024-11-13 15:21:48,310 INFO L471 AbstractCegarLoop]: Abstraction has has 569 places, 591 transitions, 1320 flow [2024-11-13 15:21:48,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:48,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:48,312 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:21:48,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:21:48,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-13 15:21:48,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1599667, now seen corresponding path program 1 times [2024-11-13 15:21:48,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:48,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494772840] [2024-11-13 15:21:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:48,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:21:48,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:48,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494772840] [2024-11-13 15:21:48,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494772840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:48,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:48,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:21:48,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044391165] [2024-11-13 15:21:48,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:48,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:21:48,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:48,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:21:48,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:21:48,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 593 [2024-11-13 15:21:48,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 591 transitions, 1320 flow. Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:48,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:48,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 593 [2024-11-13 15:21:48,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:21:58,242 INFO L124 PetriNetUnfolderBase]: 4818/56901 cut-off events. [2024-11-13 15:21:58,243 INFO L125 PetriNetUnfolderBase]: For 713/797 co-relation queries the response was YES. [2024-11-13 15:21:58,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65708 conditions, 56901 events. 4818/56901 cut-off events. For 713/797 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 844864 event pairs, 1134 based on Foata normal form. 0/49940 useless extension candidates. Maximal degree in co-relation 63053. Up to 3179 conditions per place. [2024-11-13 15:21:58,732 INFO L140 encePairwiseOnDemand]: 587/593 looper letters, 27 selfloop transitions, 3 changer transitions 0/599 dead transitions. [2024-11-13 15:21:58,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 599 transitions, 1399 flow [2024-11-13 15:21:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:21:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:21:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2024-11-13 15:21:58,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9595278246205734 [2024-11-13 15:21:58,738 INFO L175 Difference]: Start difference. First operand has 569 places, 591 transitions, 1320 flow. Second operand 3 states and 1707 transitions. [2024-11-13 15:21:58,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 599 transitions, 1399 flow [2024-11-13 15:21:58,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 599 transitions, 1379 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:21:58,772 INFO L231 Difference]: Finished difference. Result has 567 places, 591 transitions, 1315 flow [2024-11-13 15:21:58,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=1294, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1315, PETRI_PLACES=567, PETRI_TRANSITIONS=591} [2024-11-13 15:21:58,778 INFO L277 CegarLoopForPetriNet]: 575 programPoint places, -8 predicate places. [2024-11-13 15:21:58,778 INFO L471 AbstractCegarLoop]: Abstraction has has 567 places, 591 transitions, 1315 flow [2024-11-13 15:21:58,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:58,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:21:58,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:21:58,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:21:58,780 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting loaderErr3ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-13 15:21:58,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:58,780 INFO L85 PathProgramCache]: Analyzing trace with hash 185196048, now seen corresponding path program 1 times [2024-11-13 15:21:58,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:58,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229880724] [2024-11-13 15:21:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:58,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:21:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:21:58,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229880724] [2024-11-13 15:21:58,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229880724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:58,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:21:58,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:21:58,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866914466] [2024-11-13 15:21:58,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:58,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:21:58,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:21:58,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:21:58,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:21:58,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 556 out of 593 [2024-11-13 15:21:58,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 591 transitions, 1315 flow. Second operand has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 3 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:21:58,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:21:58,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 556 of 593 [2024-11-13 15:21:58,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:08,246 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1699] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][293], [588#(= |#race~i~0| 0), Black: 590#true, 189#L723true, 511#L688-7true, 456#L722-5true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 604#true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 325#L930-4true, Black: 586#true, 580#true]) [2024-11-13 15:22:08,247 INFO L294 olderBase$Statistics]: this new event has 253 ancestors and is cut-off event [2024-11-13 15:22:08,247 INFO L297 olderBase$Statistics]: existing Event has 253 ancestors and is cut-off event [2024-11-13 15:22:08,247 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2024-11-13 15:22:08,247 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2024-11-13 15:22:09,735 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1699] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][293], [588#(= |#race~i~0| 0), Black: 590#true, 511#L688-7true, 456#L722-5true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 604#true, 602#(= |#race~scull_quantum~0| 0), 325#L930-4true, Black: 600#true, Black: 586#true, 119#L890-8true, 580#true]) [2024-11-13 15:22:09,735 INFO L294 olderBase$Statistics]: this new event has 268 ancestors and is cut-off event [2024-11-13 15:22:09,735 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-11-13 15:22:09,735 INFO L297 olderBase$Statistics]: existing Event has 268 ancestors and is cut-off event [2024-11-13 15:22:09,735 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-11-13 15:22:09,738 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1465] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][265], [588#(= |#race~i~0| 0), Black: 590#true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 88#L722-5true, 604#true, 66#L688-7true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 325#L930-4true, Black: 586#true, 119#L890-8true, 580#true]) [2024-11-13 15:22:09,738 INFO L294 olderBase$Statistics]: this new event has 268 ancestors and is cut-off event [2024-11-13 15:22:09,739 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-11-13 15:22:09,739 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-11-13 15:22:09,739 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-11-13 15:22:10,617 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1699] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][293], [588#(= |#race~i~0| 0), Black: 590#true, 511#L688-7true, 456#L722-5true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 604#true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 419#L931-1true, Black: 586#true, 580#true]) [2024-11-13 15:22:10,618 INFO L294 olderBase$Statistics]: this new event has 277 ancestors and is cut-off event [2024-11-13 15:22:10,618 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-13 15:22:10,618 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-13 15:22:10,618 INFO L297 olderBase$Statistics]: existing Event has 277 ancestors and is cut-off event [2024-11-13 15:22:10,621 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1465] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][265], [588#(= |#race~i~0| 0), Black: 590#true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 88#L722-5true, 604#true, 66#L688-7true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 419#L931-1true, Black: 586#true, 580#true]) [2024-11-13 15:22:10,621 INFO L294 olderBase$Statistics]: this new event has 277 ancestors and is cut-off event [2024-11-13 15:22:10,622 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-13 15:22:10,622 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-13 15:22:10,622 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2024-11-13 15:22:11,768 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1699] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][293], [588#(= |#race~i~0| 0), Black: 590#true, 456#L722-5true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 604#true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 377#L932true, Black: 586#true, 580#true]) [2024-11-13 15:22:11,769 INFO L294 olderBase$Statistics]: this new event has 293 ancestors and is cut-off event [2024-11-13 15:22:11,769 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-11-13 15:22:11,769 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-11-13 15:22:11,769 INFO L297 olderBase$Statistics]: existing Event has 256 ancestors and is cut-off event [2024-11-13 15:22:11,830 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1699] L722-4-->L722-5: Formula: (= |v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5| |v_#race~dev_quantum~0_10|) InVars {thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_10|, thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1=|v_thread2Thread1of1ForFork2_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][293], [588#(= |#race~i~0| 0), Black: 590#true, 456#L722-5true, 314#L692-7true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 604#true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 419#L931-1true, Black: 586#true, 580#true]) [2024-11-13 15:22:11,830 INFO L294 olderBase$Statistics]: this new event has 294 ancestors and is cut-off event [2024-11-13 15:22:11,830 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-13 15:22:11,830 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-13 15:22:11,830 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-13 15:22:12,294 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1465] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][265], [588#(= |#race~i~0| 0), 310#L692-7true, Black: 590#true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 88#L722-5true, 604#true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 325#L930-4true, Black: 586#true, 119#L890-8true, 580#true]) [2024-11-13 15:22:12,294 INFO L294 olderBase$Statistics]: this new event has 297 ancestors and is cut-off event [2024-11-13 15:22:12,294 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-11-13 15:22:12,294 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-11-13 15:22:12,294 INFO L297 olderBase$Statistics]: existing Event has 248 ancestors and is cut-off event [2024-11-13 15:22:12,630 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1465] L722-4-->L722-5: Formula: (= |v_#race~dev_quantum~0_4| |v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|) InVars {thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_4|, thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1=|v_thread1Thread1of1ForFork1_scull_trim_#t~nondet10#1_5|} AuxVars[] AssignedVars[#race~dev_quantum~0][265], [588#(= |#race~i~0| 0), 310#L692-7true, Black: 590#true, Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 88#L722-5true, 604#true, 602#(= |#race~scull_quantum~0| 0), Black: 600#true, 419#L931-1true, Black: 586#true, 580#true]) [2024-11-13 15:22:12,631 INFO L294 olderBase$Statistics]: this new event has 306 ancestors and is cut-off event [2024-11-13 15:22:12,631 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is cut-off event [2024-11-13 15:22:12,631 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is cut-off event [2024-11-13 15:22:12,631 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is cut-off event [2024-11-13 15:22:13,357 INFO L124 PetriNetUnfolderBase]: 8336/81577 cut-off events. [2024-11-13 15:22:13,357 INFO L125 PetriNetUnfolderBase]: For 301/304 co-relation queries the response was YES. [2024-11-13 15:22:13,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95179 conditions, 81577 events. 8336/81577 cut-off events. For 301/304 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 1283471 event pairs, 3187 based on Foata normal form. 0/71332 useless extension candidates. Maximal degree in co-relation 51113. Up to 5975 conditions per place. [2024-11-13 15:22:14,257 INFO L140 encePairwiseOnDemand]: 585/593 looper letters, 33 selfloop transitions, 7 changer transitions 0/607 dead transitions. [2024-11-13 15:22:14,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 607 transitions, 1430 flow [2024-11-13 15:22:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:22:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:22:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1709 transitions. [2024-11-13 15:22:14,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9606520517144463 [2024-11-13 15:22:14,262 INFO L175 Difference]: Start difference. First operand has 567 places, 591 transitions, 1315 flow. Second operand 3 states and 1709 transitions. [2024-11-13 15:22:14,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 607 transitions, 1430 flow [2024-11-13 15:22:14,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 607 transitions, 1430 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:22:14,273 INFO L231 Difference]: Finished difference. Result has 571 places, 597 transitions, 1369 flow [2024-11-13 15:22:14,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1369, PETRI_PLACES=571, PETRI_TRANSITIONS=597} [2024-11-13 15:22:14,274 INFO L277 CegarLoopForPetriNet]: 575 programPoint places, -4 predicate places. [2024-11-13 15:22:14,275 INFO L471 AbstractCegarLoop]: Abstraction has has 571 places, 597 transitions, 1369 flow [2024-11-13 15:22:14,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 3 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:14,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:14,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:14,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:22:14,277 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting loaderErr4ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-13 15:22:14,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:14,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1856133060, now seen corresponding path program 1 times [2024-11-13 15:22:14,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:14,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979920350] [2024-11-13 15:22:14,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:14,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979920350] [2024-11-13 15:22:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979920350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:14,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:14,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:22:14,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891487971] [2024-11-13 15:22:14,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:14,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:22:14,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:22:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:22:14,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 593 [2024-11-13 15:22:14,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 571 places, 597 transitions, 1369 flow. Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:22:14,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:14,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 593 [2024-11-13 15:22:14,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:22,763 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1685] L781-->L781-1: Formula: (= |v_#race~dev_quantum~0_13| 0) InVars {} OutVars{#race~dev_quantum~0=|v_#race~dev_quantum~0_13|} AuxVars[] AssignedVars[#race~dev_quantum~0][273], [157#$Ultimate##0true, 286#L781-1true, 602#(= |#race~scull_quantum~0| 0), 325#L930-4true, 386#L748-1true, Black: 586#true, 588#(= |#race~i~0| 0), Black: 592#(= |#race~dev_qset~0| 0), 611#(= |#race~scull_qset~0| 0), Black: 597#(= |#race~dev_size~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet9#1|), 604#true, Black: 600#true, 580#true, Black: 606#(= |#race~dev_quantum~0| |loaderThread1of1ForFork0_scull_trim_#t~nondet10#1|)]) [2024-11-13 15:22:22,764 INFO L294 olderBase$Statistics]: this new event has 250 ancestors and is cut-off event [2024-11-13 15:22:22,764 INFO L297 olderBase$Statistics]: existing Event has 201 ancestors and is cut-off event [2024-11-13 15:22:22,764 INFO L297 olderBase$Statistics]: existing Event has 201 ancestors and is cut-off event [2024-11-13 15:22:22,764 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event