./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-theta/unwind3-100.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_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/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_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-theta/unwind3-100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/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_affd086d-58f1-4bc0-93ee-34d788dc3ade/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 51e84781857cfc73ae131a38742d9d6222707e54f6a010e2853f82c7770f5a96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:41:15,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:41:15,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:41:15,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:41:15,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:41:15,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:41:15,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:41:15,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:41:15,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:41:15,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:41:15,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:41:15,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:41:15,836 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:41:15,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:41:15,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:41:15,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:41:15,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:41:15,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:41:15,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:41:15,839 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:41:15,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:41:15,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:41:15,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:41:15,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:41:15,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:41:15,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:41:15,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:41:15,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:41:15,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:41:15,840 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_affd086d-58f1-4bc0-93ee-34d788dc3ade/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 -> 51e84781857cfc73ae131a38742d9d6222707e54f6a010e2853f82c7770f5a96 [2024-11-24 00:41:16,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:41:16,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:41:16,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:41:16,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:41:16,174 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:41:16,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-theta/unwind3-100.i [2024-11-24 00:41:19,236 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/data/83d09f8fb/6cd490572ebd4e66bc4ec395e44dda43/FLAG9d10aa785 [2024-11-24 00:41:19,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:41:19,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/sv-benchmarks/c/pthread-theta/unwind3-100.i [2024-11-24 00:41:19,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/data/83d09f8fb/6cd490572ebd4e66bc4ec395e44dda43/FLAG9d10aa785 [2024-11-24 00:41:19,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/data/83d09f8fb/6cd490572ebd4e66bc4ec395e44dda43 [2024-11-24 00:41:19,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:41:19,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:41:19,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:41:19,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:41:19,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:41:19,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:41:19" (1/1) ... [2024-11-24 00:41:19,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b922ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:19, skipping insertion in model container [2024-11-24 00:41:19,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:41:19" (1/1) ... [2024-11-24 00:41:19,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:41:20,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:41:20,211 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:41:20,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:41:20,313 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:41:20,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20 WrapperNode [2024-11-24 00:41:20,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:41:20,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:41:20,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:41:20,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:41:20,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,355 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 82 [2024-11-24 00:41:20,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:41:20,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:41:20,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:41:20,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:41:20,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,375 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:41:20,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:41:20,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:41:20,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:41:20,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (1/1) ... [2024-11-24 00:41:20,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:41:20,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:41:20,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:41:20,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affd086d-58f1-4bc0-93ee-34d788dc3ade/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:41:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:41:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-24 00:41:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-24 00:41:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-24 00:41:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-24 00:41:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:41:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:41:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:41:20,464 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 00:41:20,611 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:41:20,613 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:41:20,842 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:41:20,842 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:41:20,860 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:41:20,860 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:41:20,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:41:20 BoogieIcfgContainer [2024-11-24 00:41:20,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:41:20,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:41:20,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:41:20,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:41:20,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:41:19" (1/3) ... [2024-11-24 00:41:20,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cc5919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:41:20, skipping insertion in model container [2024-11-24 00:41:20,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:41:20" (2/3) ... [2024-11-24 00:41:20,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cc5919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:41:20, skipping insertion in model container [2024-11-24 00:41:20,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:41:20" (3/3) ... [2024-11-24 00:41:20,875 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind3-100.i [2024-11-24 00:41:20,893 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:41:20,897 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind3-100.i that has 3 procedures, 99 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-24 00:41:20,897 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:41:20,990 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:21,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 106 transitions, 220 flow [2024-11-24 00:41:21,113 INFO L124 PetriNetUnfolderBase]: 12/156 cut-off events. [2024-11-24 00:41:21,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:21,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 12/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place. [2024-11-24 00:41:21,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 106 transitions, 220 flow [2024-11-24 00:41:21,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 185 flow [2024-11-24 00:41:21,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:21,144 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:21,144 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-24 00:41:21,149 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:21,149 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:21,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:21,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:21,150 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:21,151 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:41:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2021035666, now seen corresponding path program 1 times [2024-11-24 00:41:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:21,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843474475] [2024-11-24 00:41:21,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:21,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:21,402 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 00:41:21,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:21,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843474475] [2024-11-24 00:41:21,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843474475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:21,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:21,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609331945] [2024-11-24 00:41:21,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:21,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:21,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:21,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:21,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:21,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 106 [2024-11-24 00:41:21,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 00:41:21,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:21,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 106 [2024-11-24 00:41:21,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:21,601 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2024-11-24 00:41:21,601 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-24 00:41:21,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 124 events. 5/124 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 193 event pairs, 2 based on Foata normal form. 5/116 useless extension candidates. Maximal degree in co-relation 93. Up to 20 conditions per place. [2024-11-24 00:41:21,604 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 2 changer transitions 1/85 dead transitions. [2024-11-24 00:41:21,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 203 flow [2024-11-24 00:41:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-11-24 00:41:21,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8647798742138365 [2024-11-24 00:41:21,627 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 185 flow. Second operand 3 states and 275 transitions. [2024-11-24 00:41:21,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 203 flow [2024-11-24 00:41:21,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:21,641 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 178 flow [2024-11-24 00:41:21,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2024-11-24 00:41:21,651 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-11-24 00:41:21,651 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 178 flow [2024-11-24 00:41:21,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 00:41:21,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:21,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:21,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:41:21,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:41:21,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1821698311, now seen corresponding path program 1 times [2024-11-24 00:41:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:21,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405854392] [2024-11-24 00:41:21,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:21,762 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 00:41:21,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:21,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405854392] [2024-11-24 00:41:21,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405854392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:21,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:21,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311565117] [2024-11-24 00:41:21,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:21,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:21,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:21,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:21,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:21,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 106 [2024-11-24 00:41:21,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 00:41:21,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:21,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 106 [2024-11-24 00:41:21,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:21,872 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-24 00:41:21,872 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 00:41:21,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 110 events. 3/110 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 138 event pairs, 0 based on Foata normal form. 2/107 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2024-11-24 00:41:21,873 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 9 selfloop transitions, 1 changer transitions 24/79 dead transitions. [2024-11-24 00:41:21,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 192 flow [2024-11-24 00:41:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:21,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:21,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-24 00:41:21,877 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8270440251572327 [2024-11-24 00:41:21,877 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 178 flow. Second operand 3 states and 263 transitions. [2024-11-24 00:41:21,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 192 flow [2024-11-24 00:41:21,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:21,883 INFO L231 Difference]: Finished difference. Result has 84 places, 55 transitions, 116 flow [2024-11-24 00:41:21,885 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=84, PETRI_TRANSITIONS=55} [2024-11-24 00:41:21,886 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-11-24 00:41:21,886 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 55 transitions, 116 flow [2024-11-24 00:41:21,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 00:41:21,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:21,887 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-24 00:41:21,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:41:21,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:41:21,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:21,890 INFO L85 PathProgramCache]: Analyzing trace with hash -183067082, now seen corresponding path program 1 times [2024-11-24 00:41:21,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:21,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101198554] [2024-11-24 00:41:21,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:21,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:22,152 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 00:41:22,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101198554] [2024-11-24 00:41:22,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101198554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:22,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:22,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:22,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434928176] [2024-11-24 00:41:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:22,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:22,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:22,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:22,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:22,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-24 00:41:22,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 55 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 00:41:22,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:22,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-24 00:41:22,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:22,241 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2024-11-24 00:41:22,244 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:41:22,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2024-11-24 00:41:22,245 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 5 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2024-11-24 00:41:22,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 130 flow [2024-11-24 00:41:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:22,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:22,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2024-11-24 00:41:22,249 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8608490566037735 [2024-11-24 00:41:22,249 INFO L175 Difference]: Start difference. First operand has 84 places, 55 transitions, 116 flow. Second operand 4 states and 365 transitions. [2024-11-24 00:41:22,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 130 flow [2024-11-24 00:41:22,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:22,253 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 119 flow [2024-11-24 00:41:22,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-11-24 00:41:22,254 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -29 predicate places. [2024-11-24 00:41:22,254 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 119 flow [2024-11-24 00:41:22,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 00:41:22,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:22,255 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-24 00:41:22,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:41:22,257 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-24 00:41:22,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:22,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1353324858, now seen corresponding path program 1 times [2024-11-24 00:41:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:22,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358704500] [2024-11-24 00:41:22,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:22,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:22,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:22,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:22,364 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:22,365 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-24 00:41:22,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-24 00:41:22,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-24 00:41:22,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-24 00:41:22,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-24 00:41:22,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-24 00:41:22,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-24 00:41:22,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-24 00:41:22,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-24 00:41:22,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:41:22,368 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:22,371 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:22,374 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:41:22,413 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:22,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 143 transitions, 306 flow [2024-11-24 00:41:22,466 INFO L124 PetriNetUnfolderBase]: 17/220 cut-off events. [2024-11-24 00:41:22,470 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 00:41:22,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 220 events. 17/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 466 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 231. Up to 6 conditions per place. [2024-11-24 00:41:22,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 143 transitions, 306 flow [2024-11-24 00:41:22,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 96 transitions, 205 flow [2024-11-24 00:41:22,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:22,479 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:22,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-24 00:41:22,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:22,484 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:22,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:22,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:22,484 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:22,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-24 00:41:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1013159566, now seen corresponding path program 1 times [2024-11-24 00:41:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:22,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685661447] [2024-11-24 00:41:22,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:22,545 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 00:41:22,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685661447] [2024-11-24 00:41:22,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685661447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:22,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:22,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717703434] [2024-11-24 00:41:22,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:22,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:22,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:22,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:22,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 143 [2024-11-24 00:41:22,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 00:41:22,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:22,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 143 [2024-11-24 00:41:22,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:22,659 INFO L124 PetriNetUnfolderBase]: 7/173 cut-off events. [2024-11-24 00:41:22,659 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-24 00:41:22,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 173 events. 7/173 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 3 based on Foata normal form. 4/160 useless extension candidates. Maximal degree in co-relation 150. Up to 27 conditions per place. [2024-11-24 00:41:22,663 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 12 selfloop transitions, 2 changer transitions 1/92 dead transitions. [2024-11-24 00:41:22,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 225 flow [2024-11-24 00:41:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:22,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:22,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2024-11-24 00:41:22,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8531468531468531 [2024-11-24 00:41:22,667 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 205 flow. Second operand 3 states and 366 transitions. [2024-11-24 00:41:22,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 225 flow [2024-11-24 00:41:22,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 92 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:22,671 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 198 flow [2024-11-24 00:41:22,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-11-24 00:41:22,673 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2024-11-24 00:41:22,674 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 198 flow [2024-11-24 00:41:22,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 00:41:22,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:22,674 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:22,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:41:22,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-24 00:41:22,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:22,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1993111416, now seen corresponding path program 1 times [2024-11-24 00:41:22,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:22,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365524494] [2024-11-24 00:41:22,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:22,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:22,723 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 00:41:22,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:22,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365524494] [2024-11-24 00:41:22,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365524494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:22,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:22,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:22,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785078841] [2024-11-24 00:41:22,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:22,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:22,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:22,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:22,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:22,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 143 [2024-11-24 00:41:22,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 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 00:41:22,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:22,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 143 [2024-11-24 00:41:22,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:22,820 INFO L124 PetriNetUnfolderBase]: 4/154 cut-off events. [2024-11-24 00:41:22,820 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:41:22,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 154 events. 4/154 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 230 event pairs, 0 based on Foata normal form. 3/150 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2024-11-24 00:41:22,823 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 10 selfloop transitions, 1 changer transitions 24/86 dead transitions. [2024-11-24 00:41:22,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 86 transitions, 214 flow [2024-11-24 00:41:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-24 00:41:22,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8111888111888111 [2024-11-24 00:41:22,825 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 198 flow. Second operand 3 states and 348 transitions. [2024-11-24 00:41:22,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 86 transitions, 214 flow [2024-11-24 00:41:22,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 86 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:22,829 INFO L231 Difference]: Finished difference. Result has 93 places, 62 transitions, 136 flow [2024-11-24 00:41:22,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=93, PETRI_TRANSITIONS=62} [2024-11-24 00:41:22,830 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -6 predicate places. [2024-11-24 00:41:22,831 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 62 transitions, 136 flow [2024-11-24 00:41:22,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 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 00:41:22,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:22,832 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:22,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:41:22,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-24 00:41:22,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:22,834 INFO L85 PathProgramCache]: Analyzing trace with hash 693156467, now seen corresponding path program 1 times [2024-11-24 00:41:22,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:22,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817201625] [2024-11-24 00:41:22,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:22,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:22,965 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 00:41:22,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:22,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817201625] [2024-11-24 00:41:22,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817201625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:22,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:22,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:22,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153913401] [2024-11-24 00:41:22,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:22,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:22,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:22,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:22,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:22,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 143 [2024-11-24 00:41:22,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 62 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:41:22,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:22,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 143 [2024-11-24 00:41:22,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:23,029 INFO L124 PetriNetUnfolderBase]: 0/81 cut-off events. [2024-11-24 00:41:23,029 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-24 00:41:23,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 81 events. 0/81 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-11-24 00:41:23,030 INFO L140 encePairwiseOnDemand]: 139/143 looper letters, 6 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2024-11-24 00:41:23,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 61 transitions, 152 flow [2024-11-24 00:41:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-24 00:41:23,033 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8566433566433567 [2024-11-24 00:41:23,035 INFO L175 Difference]: Start difference. First operand has 93 places, 62 transitions, 136 flow. Second operand 4 states and 490 transitions. [2024-11-24 00:41:23,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 61 transitions, 152 flow [2024-11-24 00:41:23,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:23,037 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 139 flow [2024-11-24 00:41:23,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-24 00:41:23,038 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-11-24 00:41:23,038 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 139 flow [2024-11-24 00:41:23,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:41:23,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:23,039 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:23,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:41:23,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-24 00:41:23,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1179579918, now seen corresponding path program 1 times [2024-11-24 00:41:23,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:23,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585560673] [2024-11-24 00:41:23,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:23,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:23,076 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:23,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:23,110 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:23,111 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-24 00:41:23,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-24 00:41:23,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-24 00:41:23,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-24 00:41:23,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-24 00:41:23,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-24 00:41:23,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-24 00:41:23,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-24 00:41:23,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-24 00:41:23,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-24 00:41:23,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:41:23,112 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:23,113 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:23,113 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-24 00:41:23,166 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:23,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 180 transitions, 396 flow [2024-11-24 00:41:23,204 INFO L124 PetriNetUnfolderBase]: 22/284 cut-off events. [2024-11-24 00:41:23,204 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 00:41:23,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 284 events. 22/284 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 655 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 301. Up to 8 conditions per place. [2024-11-24 00:41:23,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 180 transitions, 396 flow [2024-11-24 00:41:23,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 103 transitions, 227 flow [2024-11-24 00:41:23,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:23,209 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:23,209 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-24 00:41:23,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:23,211 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:23,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:23,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:23,211 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:23,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-24 00:41:23,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:23,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1468535822, now seen corresponding path program 1 times [2024-11-24 00:41:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:23,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112339015] [2024-11-24 00:41:23,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:23,251 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 00:41:23,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112339015] [2024-11-24 00:41:23,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112339015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:23,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:23,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:23,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472905680] [2024-11-24 00:41:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:23,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:23,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:23,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:23,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:23,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 180 [2024-11-24 00:41:23,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 00:41:23,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:23,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 180 [2024-11-24 00:41:23,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:23,368 INFO L124 PetriNetUnfolderBase]: 9/222 cut-off events. [2024-11-24 00:41:23,368 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-24 00:41:23,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 222 events. 9/222 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 464 event pairs, 4 based on Foata normal form. 9/210 useless extension candidates. Maximal degree in co-relation 211. Up to 34 conditions per place. [2024-11-24 00:41:23,370 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 13 selfloop transitions, 2 changer transitions 1/99 dead transitions. [2024-11-24 00:41:23,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 99 transitions, 249 flow [2024-11-24 00:41:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-24 00:41:23,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8462962962962963 [2024-11-24 00:41:23,374 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 227 flow. Second operand 3 states and 457 transitions. [2024-11-24 00:41:23,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 99 transitions, 249 flow [2024-11-24 00:41:23,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 99 transitions, 246 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:23,377 INFO L231 Difference]: Finished difference. Result has 108 places, 98 transitions, 218 flow [2024-11-24 00:41:23,378 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=98} [2024-11-24 00:41:23,378 INFO L279 CegarLoopForPetriNet]: 108 programPoint places, 0 predicate places. [2024-11-24 00:41:23,379 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 98 transitions, 218 flow [2024-11-24 00:41:23,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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 00:41:23,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:23,380 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:23,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:41:23,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-24 00:41:23,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:23,381 INFO L85 PathProgramCache]: Analyzing trace with hash 614389052, now seen corresponding path program 1 times [2024-11-24 00:41:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:23,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927209812] [2024-11-24 00:41:23,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:23,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:23,407 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 00:41:23,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:23,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927209812] [2024-11-24 00:41:23,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927209812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:23,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:23,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:23,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94976929] [2024-11-24 00:41:23,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:23,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:23,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:23,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:23,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:23,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 180 [2024-11-24 00:41:23,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 98 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 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 00:41:23,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:23,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 180 [2024-11-24 00:41:23,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:23,481 INFO L124 PetriNetUnfolderBase]: 5/198 cut-off events. [2024-11-24 00:41:23,481 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-24 00:41:23,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 198 events. 5/198 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 341 event pairs, 0 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 224. Up to 25 conditions per place. [2024-11-24 00:41:23,482 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 11 selfloop transitions, 1 changer transitions 24/93 dead transitions. [2024-11-24 00:41:23,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 236 flow [2024-11-24 00:41:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2024-11-24 00:41:23,484 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8018518518518518 [2024-11-24 00:41:23,484 INFO L175 Difference]: Start difference. First operand has 108 places, 98 transitions, 218 flow. Second operand 3 states and 433 transitions. [2024-11-24 00:41:23,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 236 flow [2024-11-24 00:41:23,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 93 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:23,486 INFO L231 Difference]: Finished difference. Result has 102 places, 69 transitions, 156 flow [2024-11-24 00:41:23,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=102, PETRI_TRANSITIONS=69} [2024-11-24 00:41:23,487 INFO L279 CegarLoopForPetriNet]: 108 programPoint places, -6 predicate places. [2024-11-24 00:41:23,487 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 69 transitions, 156 flow [2024-11-24 00:41:23,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 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 00:41:23,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:23,487 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:23,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:41:23,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-24 00:41:23,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:23,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1374650183, now seen corresponding path program 1 times [2024-11-24 00:41:23,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:23,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737523190] [2024-11-24 00:41:23,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:23,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:23,635 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 00:41:23,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:23,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737523190] [2024-11-24 00:41:23,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737523190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:23,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:23,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:23,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696507258] [2024-11-24 00:41:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:23,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:23,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:23,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:23,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 180 [2024-11-24 00:41:23,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 69 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 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 00:41:23,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:23,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 180 [2024-11-24 00:41:23,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:23,708 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2024-11-24 00:41:23,710 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-24 00:41:23,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 101 events. 0/101 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 35 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-11-24 00:41:23,711 INFO L140 encePairwiseOnDemand]: 176/180 looper letters, 7 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-24 00:41:23,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 68 transitions, 174 flow [2024-11-24 00:41:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2024-11-24 00:41:23,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2024-11-24 00:41:23,714 INFO L175 Difference]: Start difference. First operand has 102 places, 69 transitions, 156 flow. Second operand 4 states and 615 transitions. [2024-11-24 00:41:23,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 68 transitions, 174 flow [2024-11-24 00:41:23,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 68 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:23,716 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 159 flow [2024-11-24 00:41:23,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-11-24 00:41:23,717 INFO L279 CegarLoopForPetriNet]: 108 programPoint places, -29 predicate places. [2024-11-24 00:41:23,717 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 159 flow [2024-11-24 00:41:23,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 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 00:41:23,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:23,718 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:23,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:41:23,718 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-24 00:41:23,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:23,720 INFO L85 PathProgramCache]: Analyzing trace with hash -851937236, now seen corresponding path program 1 times [2024-11-24 00:41:23,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:23,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884799733] [2024-11-24 00:41:23,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:23,745 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:23,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:23,771 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:23,771 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-24 00:41:23,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-24 00:41:23,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-24 00:41:23,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-24 00:41:23,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-24 00:41:23,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-24 00:41:23,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-24 00:41:23,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-24 00:41:23,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-24 00:41:23,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-24 00:41:23,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-24 00:41:23,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:41:23,772 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:23,773 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:23,773 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-24 00:41:23,840 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:23,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 217 transitions, 490 flow [2024-11-24 00:41:23,908 INFO L124 PetriNetUnfolderBase]: 27/348 cut-off events. [2024-11-24 00:41:23,908 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-24 00:41:23,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 348 events. 27/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 859 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 372. Up to 10 conditions per place. [2024-11-24 00:41:23,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 217 transitions, 490 flow [2024-11-24 00:41:23,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 110 transitions, 251 flow [2024-11-24 00:41:23,912 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:23,912 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:23,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-24 00:41:23,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:23,914 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:23,914 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:23,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:23,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:23,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:41:23,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:23,915 INFO L85 PathProgramCache]: Analyzing trace with hash -654906898, now seen corresponding path program 1 times [2024-11-24 00:41:23,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:23,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725560470] [2024-11-24 00:41:23,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:23,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:23,934 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 00:41:23,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:23,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725560470] [2024-11-24 00:41:23,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725560470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:23,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:23,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247959946] [2024-11-24 00:41:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:23,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:23,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:23,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:23,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:23,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 217 [2024-11-24 00:41:23,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 00:41:23,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:23,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 217 [2024-11-24 00:41:23,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:24,046 INFO L124 PetriNetUnfolderBase]: 11/271 cut-off events. [2024-11-24 00:41:24,046 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-24 00:41:24,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 271 events. 11/271 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 607 event pairs, 5 based on Foata normal form. 11/257 useless extension candidates. Maximal degree in co-relation 273. Up to 41 conditions per place. [2024-11-24 00:41:24,047 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 14 selfloop transitions, 2 changer transitions 1/106 dead transitions. [2024-11-24 00:41:24,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 106 transitions, 275 flow [2024-11-24 00:41:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2024-11-24 00:41:24,051 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8417818740399385 [2024-11-24 00:41:24,051 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 251 flow. Second operand 3 states and 548 transitions. [2024-11-24 00:41:24,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 106 transitions, 275 flow [2024-11-24 00:41:24,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 106 transitions, 268 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:24,054 INFO L231 Difference]: Finished difference. Result has 117 places, 105 transitions, 238 flow [2024-11-24 00:41:24,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=117, PETRI_TRANSITIONS=105} [2024-11-24 00:41:24,056 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 0 predicate places. [2024-11-24 00:41:24,056 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 105 transitions, 238 flow [2024-11-24 00:41:24,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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 00:41:24,057 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,057 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:24,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:41:24,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:41:24,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1705835797, now seen corresponding path program 1 times [2024-11-24 00:41:24,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52905815] [2024-11-24 00:41:24,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:24,086 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 00:41:24,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:24,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52905815] [2024-11-24 00:41:24,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52905815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:24,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:24,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:24,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854634632] [2024-11-24 00:41:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:24,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:24,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:24,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:24,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 217 [2024-11-24 00:41:24,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 105 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 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 00:41:24,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:24,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 217 [2024-11-24 00:41:24,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:24,203 INFO L124 PetriNetUnfolderBase]: 6/242 cut-off events. [2024-11-24 00:41:24,203 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-24 00:41:24,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 242 events. 6/242 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 443 event pairs, 0 based on Foata normal form. 5/236 useless extension candidates. Maximal degree in co-relation 278. Up to 30 conditions per place. [2024-11-24 00:41:24,204 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 12 selfloop transitions, 1 changer transitions 24/100 dead transitions. [2024-11-24 00:41:24,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 100 transitions, 258 flow [2024-11-24 00:41:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-24 00:41:24,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2024-11-24 00:41:24,206 INFO L175 Difference]: Start difference. First operand has 117 places, 105 transitions, 238 flow. Second operand 3 states and 518 transitions. [2024-11-24 00:41:24,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 100 transitions, 258 flow [2024-11-24 00:41:24,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 100 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:24,208 INFO L231 Difference]: Finished difference. Result has 111 places, 76 transitions, 176 flow [2024-11-24 00:41:24,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=111, PETRI_TRANSITIONS=76} [2024-11-24 00:41:24,210 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, -6 predicate places. [2024-11-24 00:41:24,211 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 76 transitions, 176 flow [2024-11-24 00:41:24,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 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 00:41:24,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,212 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:24,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:41:24,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:41:24,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1417604968, now seen corresponding path program 1 times [2024-11-24 00:41:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649692004] [2024-11-24 00:41:24,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:24,327 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 00:41:24,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:24,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649692004] [2024-11-24 00:41:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649692004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060143759] [2024-11-24 00:41:24,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:24,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:24,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:24,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:24,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 217 [2024-11-24 00:41:24,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 76 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 184.5) internal successors, (738), 4 states have internal predecessors, (738), 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 00:41:24,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:24,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 217 [2024-11-24 00:41:24,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:24,412 INFO L124 PetriNetUnfolderBase]: 0/121 cut-off events. [2024-11-24 00:41:24,412 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-24 00:41:24,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 121 events. 0/121 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 47 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2024-11-24 00:41:24,412 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 8 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-24 00:41:24,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 75 transitions, 196 flow [2024-11-24 00:41:24,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 740 transitions. [2024-11-24 00:41:24,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8525345622119815 [2024-11-24 00:41:24,415 INFO L175 Difference]: Start difference. First operand has 111 places, 76 transitions, 176 flow. Second operand 4 states and 740 transitions. [2024-11-24 00:41:24,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 75 transitions, 196 flow [2024-11-24 00:41:24,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 75 transitions, 195 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:24,417 INFO L231 Difference]: Finished difference. Result has 88 places, 75 transitions, 179 flow [2024-11-24 00:41:24,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=85, 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=179, PETRI_PLACES=88, PETRI_TRANSITIONS=75} [2024-11-24 00:41:24,418 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, -29 predicate places. [2024-11-24 00:41:24,418 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 75 transitions, 179 flow [2024-11-24 00:41:24,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.5) internal successors, (738), 4 states have internal predecessors, (738), 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 00:41:24,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,419 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:24,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:41:24,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:41:24,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1481988500, now seen corresponding path program 1 times [2024-11-24 00:41:24,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557614551] [2024-11-24 00:41:24,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:24,447 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:24,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:24,480 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:24,480 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-24 00:41:24,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-24 00:41:24,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-24 00:41:24,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-24 00:41:24,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-24 00:41:24,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-24 00:41:24,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-24 00:41:24,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-24 00:41:24,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-24 00:41:24,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-24 00:41:24,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-24 00:41:24,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-24 00:41:24,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:41:24,482 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:24,483 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:24,483 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-24 00:41:24,548 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:24,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 254 transitions, 588 flow [2024-11-24 00:41:24,630 INFO L124 PetriNetUnfolderBase]: 32/412 cut-off events. [2024-11-24 00:41:24,631 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-24 00:41:24,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 412 events. 32/412 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1036 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 444. Up to 12 conditions per place. [2024-11-24 00:41:24,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 254 transitions, 588 flow [2024-11-24 00:41:24,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 117 transitions, 277 flow [2024-11-24 00:41:24,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:24,637 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:24,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-24 00:41:24,638 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:24,639 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:24,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:24,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:24,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-24 00:41:24,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1062201298, now seen corresponding path program 1 times [2024-11-24 00:41:24,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924760513] [2024-11-24 00:41:24,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:24,673 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 00:41:24,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:24,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924760513] [2024-11-24 00:41:24,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924760513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:24,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:24,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:24,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083839220] [2024-11-24 00:41:24,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:24,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:24,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:24,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:24,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:24,744 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 254 [2024-11-24 00:41:24,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 117 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 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 00:41:24,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:24,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 254 [2024-11-24 00:41:24,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:24,810 INFO L124 PetriNetUnfolderBase]: 13/320 cut-off events. [2024-11-24 00:41:24,810 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-24 00:41:24,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 320 events. 13/320 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 747 event pairs, 6 based on Foata normal form. 13/304 useless extension candidates. Maximal degree in co-relation 336. Up to 48 conditions per place. [2024-11-24 00:41:24,812 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 15 selfloop transitions, 2 changer transitions 1/113 dead transitions. [2024-11-24 00:41:24,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 113 transitions, 303 flow [2024-11-24 00:41:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-11-24 00:41:24,815 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8385826771653543 [2024-11-24 00:41:24,815 INFO L175 Difference]: Start difference. First operand has 126 places, 117 transitions, 277 flow. Second operand 3 states and 639 transitions. [2024-11-24 00:41:24,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 113 transitions, 303 flow [2024-11-24 00:41:24,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 113 transitions, 290 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:24,820 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 258 flow [2024-11-24 00:41:24,820 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2024-11-24 00:41:24,821 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 0 predicate places. [2024-11-24 00:41:24,821 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 258 flow [2024-11-24 00:41:24,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 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 00:41:24,822 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,822 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:24,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:41:24,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-24 00:41:24,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1281228819, now seen corresponding path program 1 times [2024-11-24 00:41:24,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530438934] [2024-11-24 00:41:24,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:24,848 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 00:41:24,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:24,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530438934] [2024-11-24 00:41:24,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530438934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:24,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:24,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872094505] [2024-11-24 00:41:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:24,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:24,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:24,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:24,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:24,894 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 254 [2024-11-24 00:41:24,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 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 00:41:24,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:24,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 254 [2024-11-24 00:41:24,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:24,948 INFO L124 PetriNetUnfolderBase]: 7/286 cut-off events. [2024-11-24 00:41:24,948 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-24 00:41:24,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 286 events. 7/286 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 545 event pairs, 0 based on Foata normal form. 6/279 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2024-11-24 00:41:24,949 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 13 selfloop transitions, 1 changer transitions 24/107 dead transitions. [2024-11-24 00:41:24,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 107 transitions, 280 flow [2024-11-24 00:41:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2024-11-24 00:41:24,952 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7913385826771654 [2024-11-24 00:41:24,953 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 258 flow. Second operand 3 states and 603 transitions. [2024-11-24 00:41:24,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 107 transitions, 280 flow [2024-11-24 00:41:24,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 107 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:24,957 INFO L231 Difference]: Finished difference. Result has 120 places, 83 transitions, 196 flow [2024-11-24 00:41:24,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=120, PETRI_TRANSITIONS=83} [2024-11-24 00:41:24,957 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, -6 predicate places. [2024-11-24 00:41:24,958 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 83 transitions, 196 flow [2024-11-24 00:41:24,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 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 00:41:24,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,959 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:24,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:41:24,959 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-24 00:41:24,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1799740192, now seen corresponding path program 1 times [2024-11-24 00:41:24,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335980141] [2024-11-24 00:41:24,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:25,090 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 00:41:25,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:25,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335980141] [2024-11-24 00:41:25,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335980141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:25,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:25,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:25,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45393460] [2024-11-24 00:41:25,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:25,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:25,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:25,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:25,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 254 [2024-11-24 00:41:25,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 83 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 215.75) internal successors, (863), 4 states have internal predecessors, (863), 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 00:41:25,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:25,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 254 [2024-11-24 00:41:25,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:25,184 INFO L124 PetriNetUnfolderBase]: 0/141 cut-off events. [2024-11-24 00:41:25,185 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-24 00:41:25,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 141 events. 0/141 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 59 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2024-11-24 00:41:25,186 INFO L140 encePairwiseOnDemand]: 250/254 looper letters, 9 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2024-11-24 00:41:25,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 218 flow [2024-11-24 00:41:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:25,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 865 transitions. [2024-11-24 00:41:25,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8513779527559056 [2024-11-24 00:41:25,188 INFO L175 Difference]: Start difference. First operand has 120 places, 83 transitions, 196 flow. Second operand 4 states and 865 transitions. [2024-11-24 00:41:25,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 218 flow [2024-11-24 00:41:25,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 82 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:25,191 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 199 flow [2024-11-24 00:41:25,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2024-11-24 00:41:25,192 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, -29 predicate places. [2024-11-24 00:41:25,192 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 199 flow [2024-11-24 00:41:25,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 215.75) internal successors, (863), 4 states have internal predecessors, (863), 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 00:41:25,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:25,193 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:25,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:41:25,193 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-24 00:41:25,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash 64345674, now seen corresponding path program 1 times [2024-11-24 00:41:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47107169] [2024-11-24 00:41:25,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:25,222 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:25,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:25,261 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:25,261 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-24 00:41:25,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-24 00:41:25,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:41:25,262 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:25,263 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:25,263 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-24 00:41:25,340 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:25,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 291 transitions, 690 flow [2024-11-24 00:41:25,423 INFO L124 PetriNetUnfolderBase]: 37/476 cut-off events. [2024-11-24 00:41:25,423 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-24 00:41:25,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 476 events. 37/476 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1237 event pairs, 0 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 517. Up to 14 conditions per place. [2024-11-24 00:41:25,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 291 transitions, 690 flow [2024-11-24 00:41:25,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 124 transitions, 305 flow [2024-11-24 00:41:25,431 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:25,431 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:25,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-24 00:41:25,434 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:25,434 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:25,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:25,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:25,434 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:25,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-24 00:41:25,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash 246652622, now seen corresponding path program 1 times [2024-11-24 00:41:25,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:25,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021416382] [2024-11-24 00:41:25,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:25,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:25,470 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 00:41:25,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:25,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021416382] [2024-11-24 00:41:25,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021416382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:25,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:25,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:25,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846995976] [2024-11-24 00:41:25,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:25,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:25,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:25,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:25,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:25,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 291 [2024-11-24 00:41:25,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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 00:41:25,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:25,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 291 [2024-11-24 00:41:25,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:25,638 INFO L124 PetriNetUnfolderBase]: 15/369 cut-off events. [2024-11-24 00:41:25,638 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-24 00:41:25,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 369 events. 15/369 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 886 event pairs, 7 based on Foata normal form. 15/351 useless extension candidates. Maximal degree in co-relation 400. Up to 55 conditions per place. [2024-11-24 00:41:25,640 INFO L140 encePairwiseOnDemand]: 285/291 looper letters, 16 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-11-24 00:41:25,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 120 transitions, 333 flow [2024-11-24 00:41:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:25,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2024-11-24 00:41:25,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8361970217640321 [2024-11-24 00:41:25,643 INFO L175 Difference]: Start difference. First operand has 135 places, 124 transitions, 305 flow. Second operand 3 states and 730 transitions. [2024-11-24 00:41:25,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 120 transitions, 333 flow [2024-11-24 00:41:25,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 120 transitions, 312 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:25,647 INFO L231 Difference]: Finished difference. Result has 135 places, 119 transitions, 278 flow [2024-11-24 00:41:25,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=135, PETRI_TRANSITIONS=119} [2024-11-24 00:41:25,648 INFO L279 CegarLoopForPetriNet]: 135 programPoint places, 0 predicate places. [2024-11-24 00:41:25,648 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 119 transitions, 278 flow [2024-11-24 00:41:25,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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 00:41:25,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:25,649 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:25,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:41:25,649 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-24 00:41:25,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:25,650 INFO L85 PathProgramCache]: Analyzing trace with hash -659431882, now seen corresponding path program 1 times [2024-11-24 00:41:25,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:25,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014946252] [2024-11-24 00:41:25,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:25,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:25,679 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 00:41:25,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:25,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014946252] [2024-11-24 00:41:25,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014946252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:25,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:25,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:25,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652843096] [2024-11-24 00:41:25,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:25,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:25,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:25,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:25,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:25,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 291 [2024-11-24 00:41:25,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 119 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 00:41:25,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:25,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 291 [2024-11-24 00:41:25,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:25,796 INFO L124 PetriNetUnfolderBase]: 8/330 cut-off events. [2024-11-24 00:41:25,796 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-24 00:41:25,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 330 events. 8/330 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 647 event pairs, 0 based on Foata normal form. 7/322 useless extension candidates. Maximal degree in co-relation 386. Up to 40 conditions per place. [2024-11-24 00:41:25,798 INFO L140 encePairwiseOnDemand]: 285/291 looper letters, 14 selfloop transitions, 1 changer transitions 24/114 dead transitions. [2024-11-24 00:41:25,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 114 transitions, 302 flow [2024-11-24 00:41:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-24 00:41:25,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7880870561282932 [2024-11-24 00:41:25,800 INFO L175 Difference]: Start difference. First operand has 135 places, 119 transitions, 278 flow. Second operand 3 states and 688 transitions. [2024-11-24 00:41:25,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 114 transitions, 302 flow [2024-11-24 00:41:25,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 114 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:25,803 INFO L231 Difference]: Finished difference. Result has 129 places, 90 transitions, 216 flow [2024-11-24 00:41:25,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=129, PETRI_TRANSITIONS=90} [2024-11-24 00:41:25,804 INFO L279 CegarLoopForPetriNet]: 135 programPoint places, -6 predicate places. [2024-11-24 00:41:25,804 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 90 transitions, 216 flow [2024-11-24 00:41:25,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 00:41:25,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:25,805 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:25,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:41:25,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-24 00:41:25,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash -360358015, now seen corresponding path program 1 times [2024-11-24 00:41:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999020338] [2024-11-24 00:41:25,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:25,924 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 00:41:25,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:25,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999020338] [2024-11-24 00:41:25,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999020338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:25,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:25,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:25,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322343362] [2024-11-24 00:41:25,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:25,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:25,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:25,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:25,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:25,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 291 [2024-11-24 00:41:25,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 90 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 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 00:41:25,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:25,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 291 [2024-11-24 00:41:25,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:26,026 INFO L124 PetriNetUnfolderBase]: 0/161 cut-off events. [2024-11-24 00:41:26,026 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-24 00:41:26,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 161 events. 0/161 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 71 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2024-11-24 00:41:26,027 INFO L140 encePairwiseOnDemand]: 287/291 looper letters, 10 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-24 00:41:26,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 89 transitions, 240 flow [2024-11-24 00:41:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:26,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:26,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 990 transitions. [2024-11-24 00:41:26,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8505154639175257 [2024-11-24 00:41:26,030 INFO L175 Difference]: Start difference. First operand has 129 places, 90 transitions, 216 flow. Second operand 4 states and 990 transitions. [2024-11-24 00:41:26,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 89 transitions, 240 flow [2024-11-24 00:41:26,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 89 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:26,032 INFO L231 Difference]: Finished difference. Result has 106 places, 89 transitions, 219 flow [2024-11-24 00:41:26,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=106, PETRI_TRANSITIONS=89} [2024-11-24 00:41:26,033 INFO L279 CegarLoopForPetriNet]: 135 programPoint places, -29 predicate places. [2024-11-24 00:41:26,033 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 89 transitions, 219 flow [2024-11-24 00:41:26,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 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 00:41:26,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:26,034 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:26,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:41:26,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-24 00:41:26,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:26,035 INFO L85 PathProgramCache]: Analyzing trace with hash 254088814, now seen corresponding path program 1 times [2024-11-24 00:41:26,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:26,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663736815] [2024-11-24 00:41:26,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:26,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:26,063 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:26,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:26,097 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:26,099 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-24 00:41:26,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-24 00:41:26,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:41:26,100 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:26,101 WARN L246 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:26,101 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-24 00:41:26,168 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:26,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 328 transitions, 796 flow [2024-11-24 00:41:26,238 INFO L124 PetriNetUnfolderBase]: 42/540 cut-off events. [2024-11-24 00:41:26,238 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-24 00:41:26,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 540 events. 42/540 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1423 event pairs, 0 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 591. Up to 16 conditions per place. [2024-11-24 00:41:26,240 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 328 transitions, 796 flow [2024-11-24 00:41:26,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 131 transitions, 335 flow [2024-11-24 00:41:26,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:26,244 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:26,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-24 00:41:26,245 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:26,246 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:26,246 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:26,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:26,246 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:26,247 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-24 00:41:26,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1023312434, now seen corresponding path program 1 times [2024-11-24 00:41:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307924797] [2024-11-24 00:41:26,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:26,269 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 00:41:26,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:26,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307924797] [2024-11-24 00:41:26,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307924797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:26,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:26,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:26,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471955400] [2024-11-24 00:41:26,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:26,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:26,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:26,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:26,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:26,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 328 [2024-11-24 00:41:26,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 131 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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 00:41:26,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:26,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 328 [2024-11-24 00:41:26,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:26,434 INFO L124 PetriNetUnfolderBase]: 17/418 cut-off events. [2024-11-24 00:41:26,434 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-24 00:41:26,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 418 events. 17/418 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1021 event pairs, 8 based on Foata normal form. 17/398 useless extension candidates. Maximal degree in co-relation 465. Up to 62 conditions per place. [2024-11-24 00:41:26,437 INFO L140 encePairwiseOnDemand]: 322/328 looper letters, 17 selfloop transitions, 2 changer transitions 1/127 dead transitions. [2024-11-24 00:41:26,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 127 transitions, 365 flow [2024-11-24 00:41:26,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 821 transitions. [2024-11-24 00:41:26,440 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.834349593495935 [2024-11-24 00:41:26,440 INFO L175 Difference]: Start difference. First operand has 144 places, 131 transitions, 335 flow. Second operand 3 states and 821 transitions. [2024-11-24 00:41:26,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 127 transitions, 365 flow [2024-11-24 00:41:26,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 127 transitions, 334 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:26,443 INFO L231 Difference]: Finished difference. Result has 144 places, 126 transitions, 298 flow [2024-11-24 00:41:26,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=144, PETRI_TRANSITIONS=126} [2024-11-24 00:41:26,443 INFO L279 CegarLoopForPetriNet]: 144 programPoint places, 0 predicate places. [2024-11-24 00:41:26,443 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 126 transitions, 298 flow [2024-11-24 00:41:26,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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 00:41:26,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:26,444 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:26,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:41:26,444 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-24 00:41:26,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 178820990, now seen corresponding path program 1 times [2024-11-24 00:41:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599616353] [2024-11-24 00:41:26,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:26,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:26,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:26,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599616353] [2024-11-24 00:41:26,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599616353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:26,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:26,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:26,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721902643] [2024-11-24 00:41:26,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:26,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:26,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:26,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:26,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:26,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 328 [2024-11-24 00:41:26,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 126 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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 00:41:26,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:26,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 328 [2024-11-24 00:41:26,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:26,596 INFO L124 PetriNetUnfolderBase]: 9/374 cut-off events. [2024-11-24 00:41:26,596 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-24 00:41:26,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 374 events. 9/374 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 749 event pairs, 0 based on Foata normal form. 8/365 useless extension candidates. Maximal degree in co-relation 440. Up to 45 conditions per place. [2024-11-24 00:41:26,598 INFO L140 encePairwiseOnDemand]: 322/328 looper letters, 15 selfloop transitions, 1 changer transitions 24/121 dead transitions. [2024-11-24 00:41:26,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 121 transitions, 324 flow [2024-11-24 00:41:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2024-11-24 00:41:26,601 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7855691056910569 [2024-11-24 00:41:26,601 INFO L175 Difference]: Start difference. First operand has 144 places, 126 transitions, 298 flow. Second operand 3 states and 773 transitions. [2024-11-24 00:41:26,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 121 transitions, 324 flow [2024-11-24 00:41:26,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 121 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:26,605 INFO L231 Difference]: Finished difference. Result has 138 places, 97 transitions, 236 flow [2024-11-24 00:41:26,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=138, PETRI_TRANSITIONS=97} [2024-11-24 00:41:26,606 INFO L279 CegarLoopForPetriNet]: 144 programPoint places, -6 predicate places. [2024-11-24 00:41:26,606 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 97 transitions, 236 flow [2024-11-24 00:41:26,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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 00:41:26,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:26,607 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:26,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:41:26,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-24 00:41:26,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash -847708757, now seen corresponding path program 1 times [2024-11-24 00:41:26,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:26,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265094785] [2024-11-24 00:41:26,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:26,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:26,712 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 00:41:26,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:26,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265094785] [2024-11-24 00:41:26,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265094785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:26,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:26,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:26,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354846107] [2024-11-24 00:41:26,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:26,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:26,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:26,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:26,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:26,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 328 [2024-11-24 00:41:26,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 97 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 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 00:41:26,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:26,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 328 [2024-11-24 00:41:26,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:26,825 INFO L124 PetriNetUnfolderBase]: 0/181 cut-off events. [2024-11-24 00:41:26,826 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-24 00:41:26,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 181 events. 0/181 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 83 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2024-11-24 00:41:26,826 INFO L140 encePairwiseOnDemand]: 324/328 looper letters, 11 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-24 00:41:26,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 96 transitions, 262 flow [2024-11-24 00:41:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1115 transitions. [2024-11-24 00:41:26,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8498475609756098 [2024-11-24 00:41:26,830 INFO L175 Difference]: Start difference. First operand has 138 places, 97 transitions, 236 flow. Second operand 4 states and 1115 transitions. [2024-11-24 00:41:26,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 96 transitions, 262 flow [2024-11-24 00:41:26,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 96 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:26,833 INFO L231 Difference]: Finished difference. Result has 115 places, 96 transitions, 239 flow [2024-11-24 00:41:26,833 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=115, PETRI_TRANSITIONS=96} [2024-11-24 00:41:26,834 INFO L279 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2024-11-24 00:41:26,834 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 96 transitions, 239 flow [2024-11-24 00:41:26,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 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 00:41:26,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:26,835 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:26,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:41:26,835 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-24 00:41:26,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash -217890272, now seen corresponding path program 1 times [2024-11-24 00:41:26,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:26,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590610108] [2024-11-24 00:41:26,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:26,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:26,869 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:26,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:26,901 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-24 00:41:26,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-24 00:41:26,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-24 00:41:26,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-24 00:41:26,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-24 00:41:26,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-24 00:41:26,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-24 00:41:26,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-24 00:41:26,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:41:26,903 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:26,904 WARN L246 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:26,904 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-24 00:41:26,998 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:27,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 365 transitions, 906 flow [2024-11-24 00:41:27,073 INFO L124 PetriNetUnfolderBase]: 47/604 cut-off events. [2024-11-24 00:41:27,074 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-24 00:41:27,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 604 events. 47/604 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1616 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 666. Up to 18 conditions per place. [2024-11-24 00:41:27,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 365 transitions, 906 flow [2024-11-24 00:41:27,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 138 transitions, 367 flow [2024-11-24 00:41:27,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:27,080 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:27,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-24 00:41:27,082 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:27,082 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:27,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:27,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:27,083 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:27,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:41:27,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash -577129170, now seen corresponding path program 1 times [2024-11-24 00:41:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:27,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721677219] [2024-11-24 00:41:27,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:27,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:27,105 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 00:41:27,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:27,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721677219] [2024-11-24 00:41:27,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721677219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:27,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:27,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:27,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124702339] [2024-11-24 00:41:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:27,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:27,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:27,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:27,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:27,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 365 [2024-11-24 00:41:27,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 138 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 00:41:27,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:27,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 365 [2024-11-24 00:41:27,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:27,254 INFO L124 PetriNetUnfolderBase]: 19/467 cut-off events. [2024-11-24 00:41:27,254 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-24 00:41:27,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 467 events. 19/467 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1119 event pairs, 9 based on Foata normal form. 10/436 useless extension candidates. Maximal degree in co-relation 531. Up to 69 conditions per place. [2024-11-24 00:41:27,258 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 18 selfloop transitions, 2 changer transitions 1/134 dead transitions. [2024-11-24 00:41:27,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 134 transitions, 399 flow [2024-11-24 00:41:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2024-11-24 00:41:27,260 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8328767123287671 [2024-11-24 00:41:27,261 INFO L175 Difference]: Start difference. First operand has 153 places, 138 transitions, 367 flow. Second operand 3 states and 912 transitions. [2024-11-24 00:41:27,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 134 transitions, 399 flow [2024-11-24 00:41:27,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 134 transitions, 356 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:27,264 INFO L231 Difference]: Finished difference. Result has 153 places, 133 transitions, 318 flow [2024-11-24 00:41:27,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=153, PETRI_TRANSITIONS=133} [2024-11-24 00:41:27,265 INFO L279 CegarLoopForPetriNet]: 153 programPoint places, 0 predicate places. [2024-11-24 00:41:27,265 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 133 transitions, 318 flow [2024-11-24 00:41:27,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 00:41:27,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:27,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:27,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:41:27,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:41:27,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash -498979861, now seen corresponding path program 1 times [2024-11-24 00:41:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:27,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979322917] [2024-11-24 00:41:27,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:27,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:27,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979322917] [2024-11-24 00:41:27,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979322917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:27,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:27,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:27,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664880502] [2024-11-24 00:41:27,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:27,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:27,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:27,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:27,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:27,342 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 365 [2024-11-24 00:41:27,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 133 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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 00:41:27,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:27,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 365 [2024-11-24 00:41:27,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:27,448 INFO L124 PetriNetUnfolderBase]: 10/418 cut-off events. [2024-11-24 00:41:27,448 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-24 00:41:27,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 418 events. 10/418 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 824 event pairs, 0 based on Foata normal form. 9/408 useless extension candidates. Maximal degree in co-relation 494. Up to 50 conditions per place. [2024-11-24 00:41:27,450 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 16 selfloop transitions, 1 changer transitions 24/128 dead transitions. [2024-11-24 00:41:27,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 128 transitions, 346 flow [2024-11-24 00:41:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 858 transitions. [2024-11-24 00:41:27,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7835616438356164 [2024-11-24 00:41:27,453 INFO L175 Difference]: Start difference. First operand has 153 places, 133 transitions, 318 flow. Second operand 3 states and 858 transitions. [2024-11-24 00:41:27,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 128 transitions, 346 flow [2024-11-24 00:41:27,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 128 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:27,455 INFO L231 Difference]: Finished difference. Result has 147 places, 104 transitions, 256 flow [2024-11-24 00:41:27,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=147, PETRI_TRANSITIONS=104} [2024-11-24 00:41:27,456 INFO L279 CegarLoopForPetriNet]: 153 programPoint places, -6 predicate places. [2024-11-24 00:41:27,456 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 104 transitions, 256 flow [2024-11-24 00:41:27,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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 00:41:27,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:27,457 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:27,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:41:27,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:41:27,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1689419198, now seen corresponding path program 1 times [2024-11-24 00:41:27,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:27,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752156995] [2024-11-24 00:41:27,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:27,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:27,580 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 00:41:27,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:27,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752156995] [2024-11-24 00:41:27,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752156995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:27,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:27,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:27,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144014206] [2024-11-24 00:41:27,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:27,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:27,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:27,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:27,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:27,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 365 [2024-11-24 00:41:27,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 104 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 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 00:41:27,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:27,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 365 [2024-11-24 00:41:27,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:27,701 INFO L124 PetriNetUnfolderBase]: 0/201 cut-off events. [2024-11-24 00:41:27,702 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-24 00:41:27,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 201 events. 0/201 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 95 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-24 00:41:27,703 INFO L140 encePairwiseOnDemand]: 361/365 looper letters, 12 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2024-11-24 00:41:27,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 103 transitions, 284 flow [2024-11-24 00:41:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1240 transitions. [2024-11-24 00:41:27,707 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8493150684931506 [2024-11-24 00:41:27,707 INFO L175 Difference]: Start difference. First operand has 147 places, 104 transitions, 256 flow. Second operand 4 states and 1240 transitions. [2024-11-24 00:41:27,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 103 transitions, 284 flow [2024-11-24 00:41:27,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 103 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:27,710 INFO L231 Difference]: Finished difference. Result has 124 places, 103 transitions, 259 flow [2024-11-24 00:41:27,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2024-11-24 00:41:27,711 INFO L279 CegarLoopForPetriNet]: 153 programPoint places, -29 predicate places. [2024-11-24 00:41:27,711 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 259 flow [2024-11-24 00:41:27,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 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 00:41:27,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:27,712 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:27,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:41:27,712 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:41:27,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1430421120, now seen corresponding path program 1 times [2024-11-24 00:41:27,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:27,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217892136] [2024-11-24 00:41:27,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:27,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:27,742 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:27,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:27,772 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-24 00:41:27,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-24 00:41:27,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-24 00:41:27,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:41:27,775 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:27,775 WARN L246 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:27,775 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-24 00:41:27,851 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:27,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 402 transitions, 1020 flow [2024-11-24 00:41:27,944 INFO L124 PetriNetUnfolderBase]: 52/668 cut-off events. [2024-11-24 00:41:27,945 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-24 00:41:27,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 668 events. 52/668 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1786 event pairs, 0 based on Foata normal form. 0/582 useless extension candidates. Maximal degree in co-relation 742. Up to 20 conditions per place. [2024-11-24 00:41:27,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 402 transitions, 1020 flow [2024-11-24 00:41:28,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 145 transitions, 401 flow [2024-11-24 00:41:28,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:28,004 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:28,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-24 00:41:28,005 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:28,005 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:28,005 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:28,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:28,006 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:28,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-24 00:41:28,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:28,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1585202414, now seen corresponding path program 1 times [2024-11-24 00:41:28,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:28,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052333077] [2024-11-24 00:41:28,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:28,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:28,028 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 00:41:28,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:28,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052333077] [2024-11-24 00:41:28,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052333077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:28,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:28,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:28,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668179585] [2024-11-24 00:41:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:28,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:28,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:28,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:28,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:28,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 402 [2024-11-24 00:41:28,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 145 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 00:41:28,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:28,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 402 [2024-11-24 00:41:28,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:28,239 INFO L124 PetriNetUnfolderBase]: 21/516 cut-off events. [2024-11-24 00:41:28,239 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-24 00:41:28,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 516 events. 21/516 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1253 event pairs, 10 based on Foata normal form. 11/482 useless extension candidates. Maximal degree in co-relation 598. Up to 76 conditions per place. [2024-11-24 00:41:28,243 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 19 selfloop transitions, 2 changer transitions 1/141 dead transitions. [2024-11-24 00:41:28,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 141 transitions, 435 flow [2024-11-24 00:41:28,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2024-11-24 00:41:28,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8316749585406302 [2024-11-24 00:41:28,246 INFO L175 Difference]: Start difference. First operand has 162 places, 145 transitions, 401 flow. Second operand 3 states and 1003 transitions. [2024-11-24 00:41:28,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 141 transitions, 435 flow [2024-11-24 00:41:28,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 141 transitions, 378 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:28,251 INFO L231 Difference]: Finished difference. Result has 162 places, 140 transitions, 338 flow [2024-11-24 00:41:28,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=162, PETRI_TRANSITIONS=140} [2024-11-24 00:41:28,251 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 0 predicate places. [2024-11-24 00:41:28,252 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 140 transitions, 338 flow [2024-11-24 00:41:28,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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 00:41:28,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:28,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:28,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:41:28,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-24 00:41:28,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1602132861, now seen corresponding path program 1 times [2024-11-24 00:41:28,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:28,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884690285] [2024-11-24 00:41:28,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:28,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:28,277 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 00:41:28,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884690285] [2024-11-24 00:41:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884690285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:28,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:28,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:28,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298085478] [2024-11-24 00:41:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:28,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:28,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:28,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:28,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:28,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 402 [2024-11-24 00:41:28,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 140 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 00:41:28,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:28,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 402 [2024-11-24 00:41:28,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:28,433 INFO L124 PetriNetUnfolderBase]: 11/462 cut-off events. [2024-11-24 00:41:28,433 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-24 00:41:28,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 462 events. 11/462 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 923 event pairs, 0 based on Foata normal form. 10/451 useless extension candidates. Maximal degree in co-relation 548. Up to 55 conditions per place. [2024-11-24 00:41:28,436 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 17 selfloop transitions, 1 changer transitions 24/135 dead transitions. [2024-11-24 00:41:28,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 135 transitions, 368 flow [2024-11-24 00:41:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:28,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-11-24 00:41:28,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7819237147595357 [2024-11-24 00:41:28,439 INFO L175 Difference]: Start difference. First operand has 162 places, 140 transitions, 338 flow. Second operand 3 states and 943 transitions. [2024-11-24 00:41:28,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 135 transitions, 368 flow [2024-11-24 00:41:28,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 135 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:28,442 INFO L231 Difference]: Finished difference. Result has 156 places, 111 transitions, 276 flow [2024-11-24 00:41:28,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=156, PETRI_TRANSITIONS=111} [2024-11-24 00:41:28,442 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, -6 predicate places. [2024-11-24 00:41:28,442 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 111 transitions, 276 flow [2024-11-24 00:41:28,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 00:41:28,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:28,443 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:28,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:41:28,443 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-24 00:41:28,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:28,445 INFO L85 PathProgramCache]: Analyzing trace with hash 369393178, now seen corresponding path program 1 times [2024-11-24 00:41:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:28,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073607587] [2024-11-24 00:41:28,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:28,543 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 00:41:28,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:28,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073607587] [2024-11-24 00:41:28,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073607587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:28,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:28,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:28,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802795377] [2024-11-24 00:41:28,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:28,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:28,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:28,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:28,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:28,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 402 [2024-11-24 00:41:28,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 111 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 340.75) internal successors, (1363), 4 states have internal predecessors, (1363), 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 00:41:28,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:28,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 402 [2024-11-24 00:41:28,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:28,689 INFO L124 PetriNetUnfolderBase]: 0/221 cut-off events. [2024-11-24 00:41:28,689 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-24 00:41:28,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 221 events. 0/221 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 107 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2024-11-24 00:41:28,690 INFO L140 encePairwiseOnDemand]: 398/402 looper letters, 13 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2024-11-24 00:41:28,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 110 transitions, 306 flow [2024-11-24 00:41:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:28,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1365 transitions. [2024-11-24 00:41:28,693 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2024-11-24 00:41:28,693 INFO L175 Difference]: Start difference. First operand has 156 places, 111 transitions, 276 flow. Second operand 4 states and 1365 transitions. [2024-11-24 00:41:28,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 110 transitions, 306 flow [2024-11-24 00:41:28,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 110 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:28,696 INFO L231 Difference]: Finished difference. Result has 133 places, 110 transitions, 279 flow [2024-11-24 00:41:28,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=133, PETRI_TRANSITIONS=110} [2024-11-24 00:41:28,696 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, -29 predicate places. [2024-11-24 00:41:28,696 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 110 transitions, 279 flow [2024-11-24 00:41:28,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 340.75) internal successors, (1363), 4 states have internal predecessors, (1363), 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 00:41:28,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:28,697 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:28,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:41:28,697 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-24 00:41:28,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:28,699 INFO L85 PathProgramCache]: Analyzing trace with hash 65404078, now seen corresponding path program 1 times [2024-11-24 00:41:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:28,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707446778] [2024-11-24 00:41:28,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:28,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:28,724 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:28,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:28,758 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:28,758 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-24 00:41:28,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-24 00:41:28,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-24 00:41:28,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-24 00:41:28,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:41:28,761 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:28,761 WARN L246 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:28,761 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-24 00:41:28,857 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:28,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 439 transitions, 1138 flow [2024-11-24 00:41:28,977 INFO L124 PetriNetUnfolderBase]: 57/732 cut-off events. [2024-11-24 00:41:28,977 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-24 00:41:28,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 732 events. 57/732 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1994 event pairs, 0 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 819. Up to 22 conditions per place. [2024-11-24 00:41:28,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 439 transitions, 1138 flow [2024-11-24 00:41:28,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 152 transitions, 437 flow [2024-11-24 00:41:28,986 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:28,986 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:28,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-24 00:41:28,988 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:28,988 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:28,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:28,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:28,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:28,989 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:41:28,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1168715022, now seen corresponding path program 1 times [2024-11-24 00:41:28,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:28,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377079605] [2024-11-24 00:41:28,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:28,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:29,015 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 00:41:29,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:29,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377079605] [2024-11-24 00:41:29,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377079605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:29,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:29,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:29,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851680426] [2024-11-24 00:41:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:29,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:29,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:29,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:29,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 439 [2024-11-24 00:41:29,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 152 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 00:41:29,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:29,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 439 [2024-11-24 00:41:29,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:29,238 INFO L124 PetriNetUnfolderBase]: 23/565 cut-off events. [2024-11-24 00:41:29,238 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-24 00:41:29,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 565 events. 23/565 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1440 event pairs, 11 based on Foata normal form. 23/539 useless extension candidates. Maximal degree in co-relation 666. Up to 83 conditions per place. [2024-11-24 00:41:29,242 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 20 selfloop transitions, 2 changer transitions 1/148 dead transitions. [2024-11-24 00:41:29,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 148 transitions, 473 flow [2024-11-24 00:41:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2024-11-24 00:41:29,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8306757782839788 [2024-11-24 00:41:29,245 INFO L175 Difference]: Start difference. First operand has 171 places, 152 transitions, 437 flow. Second operand 3 states and 1094 transitions. [2024-11-24 00:41:29,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 148 transitions, 473 flow [2024-11-24 00:41:29,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 148 transitions, 400 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:29,251 INFO L231 Difference]: Finished difference. Result has 171 places, 147 transitions, 358 flow [2024-11-24 00:41:29,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=171, PETRI_TRANSITIONS=147} [2024-11-24 00:41:29,255 INFO L279 CegarLoopForPetriNet]: 171 programPoint places, 0 predicate places. [2024-11-24 00:41:29,255 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 147 transitions, 358 flow [2024-11-24 00:41:29,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 00:41:29,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:29,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:29,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 00:41:29,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:41:29,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:29,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2107775436, now seen corresponding path program 1 times [2024-11-24 00:41:29,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:29,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657914863] [2024-11-24 00:41:29,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:29,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:29,278 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 00:41:29,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657914863] [2024-11-24 00:41:29,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657914863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:29,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:29,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:29,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098116044] [2024-11-24 00:41:29,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:29,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:29,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:29,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:29,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:29,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 439 [2024-11-24 00:41:29,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 147 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 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 00:41:29,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:29,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 439 [2024-11-24 00:41:29,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:29,452 INFO L124 PetriNetUnfolderBase]: 12/506 cut-off events. [2024-11-24 00:41:29,452 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-24 00:41:29,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 506 events. 12/506 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1055 event pairs, 0 based on Foata normal form. 11/494 useless extension candidates. Maximal degree in co-relation 602. Up to 60 conditions per place. [2024-11-24 00:41:29,455 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 18 selfloop transitions, 1 changer transitions 24/142 dead transitions. [2024-11-24 00:41:29,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 142 transitions, 390 flow [2024-11-24 00:41:29,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:29,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2024-11-24 00:41:29,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7805618830675778 [2024-11-24 00:41:29,459 INFO L175 Difference]: Start difference. First operand has 171 places, 147 transitions, 358 flow. Second operand 3 states and 1028 transitions. [2024-11-24 00:41:29,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 142 transitions, 390 flow [2024-11-24 00:41:29,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 142 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:29,462 INFO L231 Difference]: Finished difference. Result has 165 places, 118 transitions, 296 flow [2024-11-24 00:41:29,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=165, PETRI_TRANSITIONS=118} [2024-11-24 00:41:29,463 INFO L279 CegarLoopForPetriNet]: 171 programPoint places, -6 predicate places. [2024-11-24 00:41:29,463 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 118 transitions, 296 flow [2024-11-24 00:41:29,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 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 00:41:29,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:29,464 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:29,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:41:29,465 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:41:29,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash 279362847, now seen corresponding path program 1 times [2024-11-24 00:41:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339641079] [2024-11-24 00:41:29,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:29,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:29,577 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 00:41:29,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:29,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339641079] [2024-11-24 00:41:29,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339641079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:29,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:29,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:29,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934351149] [2024-11-24 00:41:29,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:29,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:29,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:29,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:29,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:29,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 439 [2024-11-24 00:41:29,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 118 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 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 00:41:29,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:29,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 439 [2024-11-24 00:41:29,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:29,700 INFO L124 PetriNetUnfolderBase]: 0/241 cut-off events. [2024-11-24 00:41:29,700 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-24 00:41:29,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 241 events. 0/241 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 119 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2024-11-24 00:41:29,701 INFO L140 encePairwiseOnDemand]: 435/439 looper letters, 14 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-11-24 00:41:29,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 117 transitions, 328 flow [2024-11-24 00:41:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1490 transitions. [2024-11-24 00:41:29,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8485193621867881 [2024-11-24 00:41:29,704 INFO L175 Difference]: Start difference. First operand has 165 places, 118 transitions, 296 flow. Second operand 4 states and 1490 transitions. [2024-11-24 00:41:29,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 117 transitions, 328 flow [2024-11-24 00:41:29,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 117 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:29,707 INFO L231 Difference]: Finished difference. Result has 142 places, 117 transitions, 299 flow [2024-11-24 00:41:29,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=142, PETRI_TRANSITIONS=117} [2024-11-24 00:41:29,708 INFO L279 CegarLoopForPetriNet]: 171 programPoint places, -29 predicate places. [2024-11-24 00:41:29,708 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 117 transitions, 299 flow [2024-11-24 00:41:29,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 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 00:41:29,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:29,709 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:29,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:41:29,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:41:29,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1418451914, now seen corresponding path program 1 times [2024-11-24 00:41:29,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:29,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193541033] [2024-11-24 00:41:29,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:29,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:29,737 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:29,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:29,797 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:29,797 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-24 00:41:29,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-24 00:41:29,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-24 00:41:29,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-24 00:41:29,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-24 00:41:29,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-24 00:41:29,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-24 00:41:29,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-24 00:41:29,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-24 00:41:29,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:41:29,799 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:29,800 WARN L246 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:29,800 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-24 00:41:29,906 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:29,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 475 places, 476 transitions, 1260 flow [2024-11-24 00:41:30,075 INFO L124 PetriNetUnfolderBase]: 62/796 cut-off events. [2024-11-24 00:41:30,075 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-24 00:41:30,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 796 events. 62/796 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2219 event pairs, 0 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 897. Up to 24 conditions per place. [2024-11-24 00:41:30,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 475 places, 476 transitions, 1260 flow [2024-11-24 00:41:30,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 159 transitions, 475 flow [2024-11-24 00:41:30,085 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:30,086 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:30,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-24 00:41:30,088 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:30,088 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:30,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:30,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:30,088 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:30,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-24 00:41:30,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:30,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1826591346, now seen corresponding path program 1 times [2024-11-24 00:41:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310625381] [2024-11-24 00:41:30,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:30,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:30,116 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 00:41:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310625381] [2024-11-24 00:41:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310625381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:30,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227622099] [2024-11-24 00:41:30,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:30,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:30,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:30,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:30,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 476 [2024-11-24 00:41:30,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 159 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 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 00:41:30,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:30,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 476 [2024-11-24 00:41:30,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:30,394 INFO L124 PetriNetUnfolderBase]: 25/614 cut-off events. [2024-11-24 00:41:30,394 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-24 00:41:30,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 614 events. 25/614 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1572 event pairs, 12 based on Foata normal form. 25/586 useless extension candidates. Maximal degree in co-relation 735. Up to 90 conditions per place. [2024-11-24 00:41:30,400 INFO L140 encePairwiseOnDemand]: 470/476 looper letters, 21 selfloop transitions, 2 changer transitions 1/155 dead transitions. [2024-11-24 00:41:30,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 155 transitions, 513 flow [2024-11-24 00:41:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1185 transitions. [2024-11-24 00:41:30,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8298319327731093 [2024-11-24 00:41:30,405 INFO L175 Difference]: Start difference. First operand has 180 places, 159 transitions, 475 flow. Second operand 3 states and 1185 transitions. [2024-11-24 00:41:30,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 155 transitions, 513 flow [2024-11-24 00:41:30,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 155 transitions, 422 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:30,411 INFO L231 Difference]: Finished difference. Result has 180 places, 154 transitions, 378 flow [2024-11-24 00:41:30,412 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=180, PETRI_TRANSITIONS=154} [2024-11-24 00:41:30,412 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 0 predicate places. [2024-11-24 00:41:30,412 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 154 transitions, 378 flow [2024-11-24 00:41:30,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 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 00:41:30,413 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:30,413 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:30,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:41:30,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-24 00:41:30,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:30,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1256197136, now seen corresponding path program 1 times [2024-11-24 00:41:30,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:30,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449685469] [2024-11-24 00:41:30,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:30,443 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 00:41:30,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:30,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449685469] [2024-11-24 00:41:30,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449685469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:30,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:30,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:30,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144995670] [2024-11-24 00:41:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:30,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:30,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:30,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:30,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:30,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 476 [2024-11-24 00:41:30,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 154 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 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 00:41:30,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:30,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 476 [2024-11-24 00:41:30,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:30,672 INFO L124 PetriNetUnfolderBase]: 13/550 cut-off events. [2024-11-24 00:41:30,672 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-24 00:41:30,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 550 events. 13/550 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1157 event pairs, 0 based on Foata normal form. 12/537 useless extension candidates. Maximal degree in co-relation 656. Up to 65 conditions per place. [2024-11-24 00:41:30,676 INFO L140 encePairwiseOnDemand]: 470/476 looper letters, 19 selfloop transitions, 1 changer transitions 24/149 dead transitions. [2024-11-24 00:41:30,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 149 transitions, 412 flow [2024-11-24 00:41:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2024-11-24 00:41:30,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794117647058824 [2024-11-24 00:41:30,679 INFO L175 Difference]: Start difference. First operand has 180 places, 154 transitions, 378 flow. Second operand 3 states and 1113 transitions. [2024-11-24 00:41:30,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 149 transitions, 412 flow [2024-11-24 00:41:30,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 149 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:30,682 INFO L231 Difference]: Finished difference. Result has 174 places, 125 transitions, 316 flow [2024-11-24 00:41:30,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=174, PETRI_TRANSITIONS=125} [2024-11-24 00:41:30,683 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, -6 predicate places. [2024-11-24 00:41:30,683 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 125 transitions, 316 flow [2024-11-24 00:41:30,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 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 00:41:30,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:30,684 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:30,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:41:30,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-24 00:41:30,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:30,685 INFO L85 PathProgramCache]: Analyzing trace with hash -211412691, now seen corresponding path program 1 times [2024-11-24 00:41:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:30,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473206182] [2024-11-24 00:41:30,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:30,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:30,828 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 00:41:30,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:30,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473206182] [2024-11-24 00:41:30,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473206182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:30,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:30,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:30,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206598768] [2024-11-24 00:41:30,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:30,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:30,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:30,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:30,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:30,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 476 [2024-11-24 00:41:30,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 125 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 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 00:41:30,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:30,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 476 [2024-11-24 00:41:30,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:30,968 INFO L124 PetriNetUnfolderBase]: 0/261 cut-off events. [2024-11-24 00:41:30,969 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-24 00:41:30,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 261 events. 0/261 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 131 event pairs, 0 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-24 00:41:30,969 INFO L140 encePairwiseOnDemand]: 472/476 looper letters, 15 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2024-11-24 00:41:30,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 124 transitions, 350 flow [2024-11-24 00:41:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:30,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1615 transitions. [2024-11-24 00:41:30,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2024-11-24 00:41:30,973 INFO L175 Difference]: Start difference. First operand has 174 places, 125 transitions, 316 flow. Second operand 4 states and 1615 transitions. [2024-11-24 00:41:30,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 124 transitions, 350 flow [2024-11-24 00:41:30,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 124 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:30,976 INFO L231 Difference]: Finished difference. Result has 151 places, 124 transitions, 319 flow [2024-11-24 00:41:30,977 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=151, PETRI_TRANSITIONS=124} [2024-11-24 00:41:30,977 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, -29 predicate places. [2024-11-24 00:41:30,978 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 124 transitions, 319 flow [2024-11-24 00:41:30,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 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 00:41:30,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:30,979 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:30,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 00:41:30,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-24 00:41:30,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash -135051532, now seen corresponding path program 1 times [2024-11-24 00:41:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:30,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296002818] [2024-11-24 00:41:30,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:30,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:31,014 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:31,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:31,070 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:31,070 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-24 00:41:31,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-24 00:41:31,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-24 00:41:31,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-24 00:41:31,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 00:41:31,073 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:31,073 WARN L246 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:31,074 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-24 00:41:31,183 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:31,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 512 places, 513 transitions, 1386 flow [2024-11-24 00:41:31,340 INFO L124 PetriNetUnfolderBase]: 67/860 cut-off events. [2024-11-24 00:41:31,341 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-24 00:41:31,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 860 events. 67/860 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2335 event pairs, 0 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 976. Up to 26 conditions per place. [2024-11-24 00:41:31,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 512 places, 513 transitions, 1386 flow [2024-11-24 00:41:31,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 166 transitions, 515 flow [2024-11-24 00:41:31,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:31,352 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:31,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-24 00:41:31,353 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:31,354 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:31,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:31,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:31,354 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:31,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:41:31,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:31,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1189217902, now seen corresponding path program 1 times [2024-11-24 00:41:31,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:31,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934744634] [2024-11-24 00:41:31,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:31,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:31,382 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 00:41:31,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:31,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934744634] [2024-11-24 00:41:31,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934744634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:31,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:31,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:31,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554581428] [2024-11-24 00:41:31,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:31,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:31,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:31,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:31,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:31,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 513 [2024-11-24 00:41:31,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 166 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 00:41:31,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:31,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 513 [2024-11-24 00:41:31,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:31,643 INFO L124 PetriNetUnfolderBase]: 27/663 cut-off events. [2024-11-24 00:41:31,643 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-24 00:41:31,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 663 events. 27/663 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1655 event pairs, 13 based on Foata normal form. 14/620 useless extension candidates. Maximal degree in co-relation 805. Up to 97 conditions per place. [2024-11-24 00:41:31,673 INFO L140 encePairwiseOnDemand]: 507/513 looper letters, 22 selfloop transitions, 2 changer transitions 1/162 dead transitions. [2024-11-24 00:41:31,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 162 transitions, 555 flow [2024-11-24 00:41:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1276 transitions. [2024-11-24 00:41:31,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8291098115659519 [2024-11-24 00:41:31,678 INFO L175 Difference]: Start difference. First operand has 189 places, 166 transitions, 515 flow. Second operand 3 states and 1276 transitions. [2024-11-24 00:41:31,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 162 transitions, 555 flow [2024-11-24 00:41:31,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 162 transitions, 444 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:31,683 INFO L231 Difference]: Finished difference. Result has 189 places, 161 transitions, 398 flow [2024-11-24 00:41:31,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=189, PETRI_TRANSITIONS=161} [2024-11-24 00:41:31,684 INFO L279 CegarLoopForPetriNet]: 189 programPoint places, 0 predicate places. [2024-11-24 00:41:31,685 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 161 transitions, 398 flow [2024-11-24 00:41:31,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 00:41:31,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:31,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:31,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 00:41:31,688 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:41:31,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1190851311, now seen corresponding path program 1 times [2024-11-24 00:41:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:31,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44871015] [2024-11-24 00:41:31,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:31,710 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 00:41:31,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:31,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44871015] [2024-11-24 00:41:31,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44871015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:31,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:31,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:31,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147859370] [2024-11-24 00:41:31,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:31,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:31,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:31,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:31,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:31,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 513 [2024-11-24 00:41:31,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 161 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 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 00:41:31,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:31,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 513 [2024-11-24 00:41:31,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:31,917 INFO L124 PetriNetUnfolderBase]: 14/594 cut-off events. [2024-11-24 00:41:31,917 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-24 00:41:31,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 594 events. 14/594 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1220 event pairs, 0 based on Foata normal form. 13/580 useless extension candidates. Maximal degree in co-relation 710. Up to 70 conditions per place. [2024-11-24 00:41:31,922 INFO L140 encePairwiseOnDemand]: 507/513 looper letters, 20 selfloop transitions, 1 changer transitions 24/156 dead transitions. [2024-11-24 00:41:31,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 156 transitions, 434 flow [2024-11-24 00:41:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:31,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1198 transitions. [2024-11-24 00:41:31,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7784275503573749 [2024-11-24 00:41:31,924 INFO L175 Difference]: Start difference. First operand has 189 places, 161 transitions, 398 flow. Second operand 3 states and 1198 transitions. [2024-11-24 00:41:31,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 156 transitions, 434 flow [2024-11-24 00:41:31,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 156 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:31,928 INFO L231 Difference]: Finished difference. Result has 183 places, 132 transitions, 336 flow [2024-11-24 00:41:31,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=183, PETRI_TRANSITIONS=132} [2024-11-24 00:41:31,929 INFO L279 CegarLoopForPetriNet]: 189 programPoint places, -6 predicate places. [2024-11-24 00:41:31,929 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 132 transitions, 336 flow [2024-11-24 00:41:31,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 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 00:41:31,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:31,931 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:31,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-24 00:41:31,931 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:41:31,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1370189660, now seen corresponding path program 1 times [2024-11-24 00:41:31,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:31,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39288759] [2024-11-24 00:41:31,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:31,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:32,053 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 00:41:32,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:32,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39288759] [2024-11-24 00:41:32,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39288759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:32,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:32,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:32,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419570335] [2024-11-24 00:41:32,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:32,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:32,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:32,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:32,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:32,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 513 [2024-11-24 00:41:32,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 132 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 434.5) internal successors, (1738), 4 states have internal predecessors, (1738), 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 00:41:32,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:32,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 513 [2024-11-24 00:41:32,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:32,211 INFO L124 PetriNetUnfolderBase]: 0/281 cut-off events. [2024-11-24 00:41:32,211 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-24 00:41:32,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 281 events. 0/281 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 143 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2024-11-24 00:41:32,212 INFO L140 encePairwiseOnDemand]: 509/513 looper letters, 16 selfloop transitions, 3 changer transitions 0/131 dead transitions. [2024-11-24 00:41:32,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 131 transitions, 372 flow [2024-11-24 00:41:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1740 transitions. [2024-11-24 00:41:32,216 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2024-11-24 00:41:32,216 INFO L175 Difference]: Start difference. First operand has 183 places, 132 transitions, 336 flow. Second operand 4 states and 1740 transitions. [2024-11-24 00:41:32,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 131 transitions, 372 flow [2024-11-24 00:41:32,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 131 transitions, 371 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:32,220 INFO L231 Difference]: Finished difference. Result has 160 places, 131 transitions, 339 flow [2024-11-24 00:41:32,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=339, PETRI_PLACES=160, PETRI_TRANSITIONS=131} [2024-11-24 00:41:32,221 INFO L279 CegarLoopForPetriNet]: 189 programPoint places, -29 predicate places. [2024-11-24 00:41:32,222 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 131 transitions, 339 flow [2024-11-24 00:41:32,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 434.5) internal successors, (1738), 4 states have internal predecessors, (1738), 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 00:41:32,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:32,227 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:32,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-24 00:41:32,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-24 00:41:32,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash -238197172, now seen corresponding path program 1 times [2024-11-24 00:41:32,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:32,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021260767] [2024-11-24 00:41:32,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:32,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:32,267 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:32,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:32,328 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-24 00:41:32,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-24 00:41:32,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-24 00:41:32,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-24 00:41:32,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-24 00:41:32,331 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:32,333 WARN L246 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:32,333 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-24 00:41:32,442 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:32,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 549 places, 550 transitions, 1516 flow [2024-11-24 00:41:32,623 INFO L124 PetriNetUnfolderBase]: 72/924 cut-off events. [2024-11-24 00:41:32,623 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-24 00:41:32,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 924 events. 72/924 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2639 event pairs, 0 based on Foata normal form. 0/806 useless extension candidates. Maximal degree in co-relation 1056. Up to 28 conditions per place. [2024-11-24 00:41:32,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 549 places, 550 transitions, 1516 flow [2024-11-24 00:41:32,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 173 transitions, 557 flow [2024-11-24 00:41:32,635 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:32,636 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:32,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-24 00:41:32,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:32,640 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:32,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:32,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:32,640 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:32,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-24 00:41:32,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:32,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1626208174, now seen corresponding path program 1 times [2024-11-24 00:41:32,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:32,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682661665] [2024-11-24 00:41:32,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:32,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:32,662 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 00:41:32,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:32,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682661665] [2024-11-24 00:41:32,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682661665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:32,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:32,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:32,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749192556] [2024-11-24 00:41:32,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:32,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:32,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:32,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:32,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:32,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 550 [2024-11-24 00:41:32,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 173 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 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 00:41:32,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:32,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 550 [2024-11-24 00:41:32,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:32,954 INFO L124 PetriNetUnfolderBase]: 29/712 cut-off events. [2024-11-24 00:41:32,954 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-24 00:41:32,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 712 events. 29/712 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1775 event pairs, 14 based on Foata normal form. 15/666 useless extension candidates. Maximal degree in co-relation 876. Up to 104 conditions per place. [2024-11-24 00:41:32,960 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 23 selfloop transitions, 2 changer transitions 1/169 dead transitions. [2024-11-24 00:41:32,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 169 transitions, 599 flow [2024-11-24 00:41:32,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:32,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:32,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2024-11-24 00:41:32,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8284848484848485 [2024-11-24 00:41:32,963 INFO L175 Difference]: Start difference. First operand has 198 places, 173 transitions, 557 flow. Second operand 3 states and 1367 transitions. [2024-11-24 00:41:32,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 169 transitions, 599 flow [2024-11-24 00:41:32,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 169 transitions, 466 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:32,969 INFO L231 Difference]: Finished difference. Result has 198 places, 168 transitions, 418 flow [2024-11-24 00:41:32,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=198, PETRI_TRANSITIONS=168} [2024-11-24 00:41:32,969 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 0 predicate places. [2024-11-24 00:41:32,969 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 168 transitions, 418 flow [2024-11-24 00:41:32,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 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 00:41:32,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:32,971 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:32,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-24 00:41:32,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-24 00:41:32,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:32,972 INFO L85 PathProgramCache]: Analyzing trace with hash -858986185, now seen corresponding path program 1 times [2024-11-24 00:41:32,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:32,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166263161] [2024-11-24 00:41:32,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:32,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:32,992 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 00:41:32,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:32,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166263161] [2024-11-24 00:41:32,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166263161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:32,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:32,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771401644] [2024-11-24 00:41:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:32,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:32,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:32,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:33,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 550 [2024-11-24 00:41:33,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 168 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 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 00:41:33,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:33,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 550 [2024-11-24 00:41:33,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:33,219 INFO L124 PetriNetUnfolderBase]: 15/638 cut-off events. [2024-11-24 00:41:33,219 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-24 00:41:33,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 638 events. 15/638 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1319 event pairs, 0 based on Foata normal form. 14/623 useless extension candidates. Maximal degree in co-relation 764. Up to 75 conditions per place. [2024-11-24 00:41:33,224 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 21 selfloop transitions, 1 changer transitions 24/163 dead transitions. [2024-11-24 00:41:33,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 163 transitions, 456 flow [2024-11-24 00:41:33,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2024-11-24 00:41:33,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775757575757576 [2024-11-24 00:41:33,230 INFO L175 Difference]: Start difference. First operand has 198 places, 168 transitions, 418 flow. Second operand 3 states and 1283 transitions. [2024-11-24 00:41:33,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 163 transitions, 456 flow [2024-11-24 00:41:33,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 163 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:33,233 INFO L231 Difference]: Finished difference. Result has 192 places, 139 transitions, 356 flow [2024-11-24 00:41:33,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=192, PETRI_TRANSITIONS=139} [2024-11-24 00:41:33,234 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -6 predicate places. [2024-11-24 00:41:33,234 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 139 transitions, 356 flow [2024-11-24 00:41:33,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 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 00:41:33,235 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:33,235 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:33,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-24 00:41:33,235 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-24 00:41:33,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:33,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1074183708, now seen corresponding path program 1 times [2024-11-24 00:41:33,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:33,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470406596] [2024-11-24 00:41:33,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:33,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:33,412 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 00:41:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470406596] [2024-11-24 00:41:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470406596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:33,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:33,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:33,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620446130] [2024-11-24 00:41:33,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:33,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:33,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:33,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:33,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 550 [2024-11-24 00:41:33,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 139 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 465.75) internal successors, (1863), 4 states have internal predecessors, (1863), 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 00:41:33,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:33,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 550 [2024-11-24 00:41:33,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:33,606 INFO L124 PetriNetUnfolderBase]: 0/301 cut-off events. [2024-11-24 00:41:33,606 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-24 00:41:33,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 301 events. 0/301 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 155 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2024-11-24 00:41:33,607 INFO L140 encePairwiseOnDemand]: 546/550 looper letters, 17 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-24 00:41:33,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 138 transitions, 394 flow [2024-11-24 00:41:33,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1865 transitions. [2024-11-24 00:41:33,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8477272727272728 [2024-11-24 00:41:33,612 INFO L175 Difference]: Start difference. First operand has 192 places, 139 transitions, 356 flow. Second operand 4 states and 1865 transitions. [2024-11-24 00:41:33,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 138 transitions, 394 flow [2024-11-24 00:41:33,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 138 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:33,616 INFO L231 Difference]: Finished difference. Result has 169 places, 138 transitions, 359 flow [2024-11-24 00:41:33,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=169, PETRI_TRANSITIONS=138} [2024-11-24 00:41:33,617 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -29 predicate places. [2024-11-24 00:41:33,617 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 138 transitions, 359 flow [2024-11-24 00:41:33,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 465.75) internal successors, (1863), 4 states have internal predecessors, (1863), 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 00:41:33,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:33,618 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:33,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-24 00:41:33,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-24 00:41:33,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:33,620 INFO L85 PathProgramCache]: Analyzing trace with hash 401629682, now seen corresponding path program 1 times [2024-11-24 00:41:33,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:33,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253457384] [2024-11-24 00:41:33,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:33,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:33,675 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:33,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:33,744 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:33,744 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-24 00:41:33,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-24 00:41:33,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-24 00:41:33,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-24 00:41:33,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-24 00:41:33,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-24 00:41:33,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-24 00:41:33,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-24 00:41:33,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-24 00:41:33,746 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:33,746 WARN L246 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:33,747 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-24 00:41:33,873 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:33,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 587 transitions, 1650 flow [2024-11-24 00:41:34,060 INFO L124 PetriNetUnfolderBase]: 77/988 cut-off events. [2024-11-24 00:41:34,061 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-24 00:41:34,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 988 events. 77/988 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2722 event pairs, 0 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1137. Up to 30 conditions per place. [2024-11-24 00:41:34,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 587 transitions, 1650 flow [2024-11-24 00:41:34,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 180 transitions, 601 flow [2024-11-24 00:41:34,077 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:34,077 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:34,077 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-24 00:41:34,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:34,079 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:34,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:34,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:34,080 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:34,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-24 00:41:34,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash -515620530, now seen corresponding path program 1 times [2024-11-24 00:41:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:34,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264832999] [2024-11-24 00:41:34,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:34,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:34,104 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 00:41:34,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:34,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264832999] [2024-11-24 00:41:34,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264832999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:34,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:34,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:34,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547448994] [2024-11-24 00:41:34,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:34,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:34,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:34,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:34,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:34,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 587 [2024-11-24 00:41:34,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 180 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 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 00:41:34,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:34,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 587 [2024-11-24 00:41:34,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:34,460 INFO L124 PetriNetUnfolderBase]: 31/761 cut-off events. [2024-11-24 00:41:34,460 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-24 00:41:34,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 761 events. 31/761 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1909 event pairs, 15 based on Foata normal form. 16/712 useless extension candidates. Maximal degree in co-relation 948. Up to 111 conditions per place. [2024-11-24 00:41:34,469 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 24 selfloop transitions, 2 changer transitions 1/176 dead transitions. [2024-11-24 00:41:34,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 176 transitions, 645 flow [2024-11-24 00:41:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2024-11-24 00:41:34,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.82793867120954 [2024-11-24 00:41:34,473 INFO L175 Difference]: Start difference. First operand has 207 places, 180 transitions, 601 flow. Second operand 3 states and 1458 transitions. [2024-11-24 00:41:34,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 176 transitions, 645 flow [2024-11-24 00:41:34,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 176 transitions, 488 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:34,479 INFO L231 Difference]: Finished difference. Result has 207 places, 175 transitions, 438 flow [2024-11-24 00:41:34,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=175} [2024-11-24 00:41:34,480 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2024-11-24 00:41:34,480 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 175 transitions, 438 flow [2024-11-24 00:41:34,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 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 00:41:34,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:34,481 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:34,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-24 00:41:34,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-24 00:41:34,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:34,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2043174782, now seen corresponding path program 1 times [2024-11-24 00:41:34,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:34,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764324866] [2024-11-24 00:41:34,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:34,508 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 00:41:34,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:34,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764324866] [2024-11-24 00:41:34,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764324866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:34,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:34,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:34,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658599744] [2024-11-24 00:41:34,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:34,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:34,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:34,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:34,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:34,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 587 [2024-11-24 00:41:34,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 175 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 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 00:41:34,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:34,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 587 [2024-11-24 00:41:34,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:34,776 INFO L124 PetriNetUnfolderBase]: 16/682 cut-off events. [2024-11-24 00:41:34,776 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-24 00:41:34,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 682 events. 16/682 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1418 event pairs, 0 based on Foata normal form. 15/666 useless extension candidates. Maximal degree in co-relation 818. Up to 80 conditions per place. [2024-11-24 00:41:34,782 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 22 selfloop transitions, 1 changer transitions 24/170 dead transitions. [2024-11-24 00:41:34,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 170 transitions, 478 flow [2024-11-24 00:41:34,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:34,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-24 00:41:34,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768313458262351 [2024-11-24 00:41:34,786 INFO L175 Difference]: Start difference. First operand has 207 places, 175 transitions, 438 flow. Second operand 3 states and 1368 transitions. [2024-11-24 00:41:34,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 170 transitions, 478 flow [2024-11-24 00:41:34,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 170 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:34,790 INFO L231 Difference]: Finished difference. Result has 201 places, 146 transitions, 376 flow [2024-11-24 00:41:34,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=201, PETRI_TRANSITIONS=146} [2024-11-24 00:41:34,792 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, -6 predicate places. [2024-11-24 00:41:34,792 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 146 transitions, 376 flow [2024-11-24 00:41:34,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 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 00:41:34,793 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:34,793 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:34,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-24 00:41:34,793 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-24 00:41:34,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:34,795 INFO L85 PathProgramCache]: Analyzing trace with hash -301962419, now seen corresponding path program 1 times [2024-11-24 00:41:34,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:34,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190729614] [2024-11-24 00:41:34,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:34,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:34,915 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 00:41:34,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:34,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190729614] [2024-11-24 00:41:34,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190729614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:34,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:34,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913662428] [2024-11-24 00:41:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:34,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:34,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:34,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:34,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:34,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 587 [2024-11-24 00:41:34,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 146 transitions, 376 flow. Second operand has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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 00:41:34,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:34,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 587 [2024-11-24 00:41:34,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:35,086 INFO L124 PetriNetUnfolderBase]: 0/321 cut-off events. [2024-11-24 00:41:35,087 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-24 00:41:35,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 321 events. 0/321 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 167 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2024-11-24 00:41:35,087 INFO L140 encePairwiseOnDemand]: 583/587 looper letters, 18 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-11-24 00:41:35,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 145 transitions, 416 flow [2024-11-24 00:41:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1990 transitions. [2024-11-24 00:41:35,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8475298126064736 [2024-11-24 00:41:35,091 INFO L175 Difference]: Start difference. First operand has 201 places, 146 transitions, 376 flow. Second operand 4 states and 1990 transitions. [2024-11-24 00:41:35,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 145 transitions, 416 flow [2024-11-24 00:41:35,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 145 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:35,095 INFO L231 Difference]: Finished difference. Result has 178 places, 145 transitions, 379 flow [2024-11-24 00:41:35,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=178, PETRI_TRANSITIONS=145} [2024-11-24 00:41:35,096 INFO L279 CegarLoopForPetriNet]: 207 programPoint places, -29 predicate places. [2024-11-24 00:41:35,096 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 145 transitions, 379 flow [2024-11-24 00:41:35,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 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 00:41:35,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:35,097 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:35,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-24 00:41:35,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-24 00:41:35,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:35,099 INFO L85 PathProgramCache]: Analyzing trace with hash 579822086, now seen corresponding path program 1 times [2024-11-24 00:41:35,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:35,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156999172] [2024-11-24 00:41:35,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:35,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:35,145 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:35,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:35,215 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:35,215 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-24 00:41:35,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-24 00:41:35,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-24 00:41:35,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-24 00:41:35,217 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:35,218 WARN L246 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:35,218 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-24 00:41:35,349 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:35,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 623 places, 624 transitions, 1788 flow [2024-11-24 00:41:35,631 INFO L124 PetriNetUnfolderBase]: 82/1052 cut-off events. [2024-11-24 00:41:35,632 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-24 00:41:35,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 1052 events. 82/1052 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2890 event pairs, 0 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1219. Up to 32 conditions per place. [2024-11-24 00:41:35,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 623 places, 624 transitions, 1788 flow [2024-11-24 00:41:35,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 187 transitions, 647 flow [2024-11-24 00:41:35,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:35,650 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:35,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-24 00:41:35,651 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:35,652 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:35,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:35,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:35,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:35,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:41:35,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash -941300914, now seen corresponding path program 1 times [2024-11-24 00:41:35,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:35,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312533640] [2024-11-24 00:41:35,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:35,678 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 00:41:35,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:35,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312533640] [2024-11-24 00:41:35,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312533640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:35,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:35,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:35,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722881223] [2024-11-24 00:41:35,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:35,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:35,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:35,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:35,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:35,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 624 [2024-11-24 00:41:35,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 187 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 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 00:41:35,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:35,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 624 [2024-11-24 00:41:35,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:36,008 INFO L124 PetriNetUnfolderBase]: 33/810 cut-off events. [2024-11-24 00:41:36,008 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-24 00:41:36,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 810 events. 33/810 cut-off events. For 801/801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2123 event pairs, 16 based on Foata normal form. 33/774 useless extension candidates. Maximal degree in co-relation 1021. Up to 118 conditions per place. [2024-11-24 00:41:36,020 INFO L140 encePairwiseOnDemand]: 618/624 looper letters, 25 selfloop transitions, 2 changer transitions 1/183 dead transitions. [2024-11-24 00:41:36,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 183 transitions, 693 flow [2024-11-24 00:41:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1549 transitions. [2024-11-24 00:41:36,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8274572649572649 [2024-11-24 00:41:36,024 INFO L175 Difference]: Start difference. First operand has 216 places, 187 transitions, 647 flow. Second operand 3 states and 1549 transitions. [2024-11-24 00:41:36,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 183 transitions, 693 flow [2024-11-24 00:41:36,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 183 transitions, 510 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:36,032 INFO L231 Difference]: Finished difference. Result has 216 places, 182 transitions, 458 flow [2024-11-24 00:41:36,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=216, PETRI_TRANSITIONS=182} [2024-11-24 00:41:36,033 INFO L279 CegarLoopForPetriNet]: 216 programPoint places, 0 predicate places. [2024-11-24 00:41:36,034 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 182 transitions, 458 flow [2024-11-24 00:41:36,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 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 00:41:36,035 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:36,036 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:36,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-24 00:41:36,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:41:36,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash -448449806, now seen corresponding path program 1 times [2024-11-24 00:41:36,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:36,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047374730] [2024-11-24 00:41:36,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:36,060 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 00:41:36,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:36,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047374730] [2024-11-24 00:41:36,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047374730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:36,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:36,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077466191] [2024-11-24 00:41:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:36,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:36,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:36,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:36,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 624 [2024-11-24 00:41:36,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 182 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 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 00:41:36,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:36,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 624 [2024-11-24 00:41:36,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:36,332 INFO L124 PetriNetUnfolderBase]: 17/726 cut-off events. [2024-11-24 00:41:36,332 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-24 00:41:36,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 726 events. 17/726 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1566 event pairs, 0 based on Foata normal form. 16/709 useless extension candidates. Maximal degree in co-relation 872. Up to 85 conditions per place. [2024-11-24 00:41:36,338 INFO L140 encePairwiseOnDemand]: 618/624 looper letters, 23 selfloop transitions, 1 changer transitions 24/177 dead transitions. [2024-11-24 00:41:36,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 177 transitions, 500 flow [2024-11-24 00:41:36,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2024-11-24 00:41:36,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7761752136752137 [2024-11-24 00:41:36,341 INFO L175 Difference]: Start difference. First operand has 216 places, 182 transitions, 458 flow. Second operand 3 states and 1453 transitions. [2024-11-24 00:41:36,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 177 transitions, 500 flow [2024-11-24 00:41:36,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 177 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:36,345 INFO L231 Difference]: Finished difference. Result has 210 places, 153 transitions, 396 flow [2024-11-24 00:41:36,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=210, PETRI_TRANSITIONS=153} [2024-11-24 00:41:36,346 INFO L279 CegarLoopForPetriNet]: 216 programPoint places, -6 predicate places. [2024-11-24 00:41:36,346 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 153 transitions, 396 flow [2024-11-24 00:41:36,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 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 00:41:36,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:36,347 INFO L206 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:36,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-24 00:41:36,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:41:36,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:36,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1721013441, now seen corresponding path program 1 times [2024-11-24 00:41:36,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:36,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609828082] [2024-11-24 00:41:36,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:36,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:36,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:36,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609828082] [2024-11-24 00:41:36,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609828082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:36,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:36,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:36,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160435756] [2024-11-24 00:41:36,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:36,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:36,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:36,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:36,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:36,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 624 [2024-11-24 00:41:36,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 153 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 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 00:41:36,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:36,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 624 [2024-11-24 00:41:36,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:36,742 INFO L124 PetriNetUnfolderBase]: 0/341 cut-off events. [2024-11-24 00:41:36,742 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-24 00:41:36,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 341 events. 0/341 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 180 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2024-11-24 00:41:36,743 INFO L140 encePairwiseOnDemand]: 620/624 looper letters, 19 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2024-11-24 00:41:36,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 152 transitions, 438 flow [2024-11-24 00:41:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2115 transitions. [2024-11-24 00:41:36,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8473557692307693 [2024-11-24 00:41:36,746 INFO L175 Difference]: Start difference. First operand has 210 places, 153 transitions, 396 flow. Second operand 4 states and 2115 transitions. [2024-11-24 00:41:36,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 152 transitions, 438 flow [2024-11-24 00:41:36,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 152 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:36,751 INFO L231 Difference]: Finished difference. Result has 187 places, 152 transitions, 399 flow [2024-11-24 00:41:36,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=399, PETRI_PLACES=187, PETRI_TRANSITIONS=152} [2024-11-24 00:41:36,751 INFO L279 CegarLoopForPetriNet]: 216 programPoint places, -29 predicate places. [2024-11-24 00:41:36,752 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 152 transitions, 399 flow [2024-11-24 00:41:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 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 00:41:36,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:36,753 INFO L206 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:36,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-24 00:41:36,753 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:41:36,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash 49450664, now seen corresponding path program 1 times [2024-11-24 00:41:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:36,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558766898] [2024-11-24 00:41:36,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:36,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:36,814 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:36,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:36,894 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:36,894 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-24 00:41:36,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-24 00:41:36,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-24 00:41:36,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-24 00:41:36,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-24 00:41:36,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-24 00:41:36,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-24 00:41:36,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-24 00:41:36,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-24 00:41:36,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-24 00:41:36,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-24 00:41:36,897 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:36,898 WARN L246 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:36,898 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-24 00:41:37,033 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:37,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 660 places, 661 transitions, 1930 flow [2024-11-24 00:41:37,269 INFO L124 PetriNetUnfolderBase]: 87/1116 cut-off events. [2024-11-24 00:41:37,270 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-24 00:41:37,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 1116 events. 87/1116 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3063 event pairs, 0 based on Foata normal form. 0/974 useless extension candidates. Maximal degree in co-relation 1302. Up to 34 conditions per place. [2024-11-24 00:41:37,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 660 places, 661 transitions, 1930 flow [2024-11-24 00:41:37,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 194 transitions, 695 flow [2024-11-24 00:41:37,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:37,286 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:37,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-24 00:41:37,288 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:37,288 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:37,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:37,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:37,288 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:37,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-24 00:41:37,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:37,289 INFO L85 PathProgramCache]: Analyzing trace with hash 349167022, now seen corresponding path program 1 times [2024-11-24 00:41:37,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:37,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892932176] [2024-11-24 00:41:37,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:37,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:37,350 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 00:41:37,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:37,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892932176] [2024-11-24 00:41:37,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892932176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:37,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:37,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129970940] [2024-11-24 00:41:37,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:37,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:37,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:37,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:37,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 536 out of 661 [2024-11-24 00:41:37,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 194 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 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 00:41:37,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:37,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 536 of 661 [2024-11-24 00:41:37,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:37,772 INFO L124 PetriNetUnfolderBase]: 35/859 cut-off events. [2024-11-24 00:41:37,773 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-24 00:41:37,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 859 events. 35/859 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2327 event pairs, 17 based on Foata normal form. 35/821 useless extension candidates. Maximal degree in co-relation 1095. Up to 125 conditions per place. [2024-11-24 00:41:37,783 INFO L140 encePairwiseOnDemand]: 655/661 looper letters, 26 selfloop transitions, 2 changer transitions 1/190 dead transitions. [2024-11-24 00:41:37,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 190 transitions, 743 flow [2024-11-24 00:41:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1640 transitions. [2024-11-24 00:41:37,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.827029752899647 [2024-11-24 00:41:37,787 INFO L175 Difference]: Start difference. First operand has 225 places, 194 transitions, 695 flow. Second operand 3 states and 1640 transitions. [2024-11-24 00:41:37,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 190 transitions, 743 flow [2024-11-24 00:41:37,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 190 transitions, 532 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:37,796 INFO L231 Difference]: Finished difference. Result has 225 places, 189 transitions, 478 flow [2024-11-24 00:41:37,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=225, PETRI_TRANSITIONS=189} [2024-11-24 00:41:37,797 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, 0 predicate places. [2024-11-24 00:41:37,797 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 189 transitions, 478 flow [2024-11-24 00:41:37,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 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 00:41:37,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:37,798 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:37,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-24 00:41:37,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-24 00:41:37,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:37,799 INFO L85 PathProgramCache]: Analyzing trace with hash -369778553, now seen corresponding path program 1 times [2024-11-24 00:41:37,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:37,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983964072] [2024-11-24 00:41:37,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:37,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:37,827 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 00:41:37,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:37,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983964072] [2024-11-24 00:41:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983964072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:37,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:37,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490902906] [2024-11-24 00:41:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:37,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:37,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:37,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:37,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:37,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 661 [2024-11-24 00:41:37,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 189 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 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 00:41:37,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:37,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 661 [2024-11-24 00:41:37,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:38,140 INFO L124 PetriNetUnfolderBase]: 18/770 cut-off events. [2024-11-24 00:41:38,141 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-24 00:41:38,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 770 events. 18/770 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1748 event pairs, 0 based on Foata normal form. 17/752 useless extension candidates. Maximal degree in co-relation 926. Up to 90 conditions per place. [2024-11-24 00:41:38,148 INFO L140 encePairwiseOnDemand]: 655/661 looper letters, 24 selfloop transitions, 1 changer transitions 24/184 dead transitions. [2024-11-24 00:41:38,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 184 transitions, 522 flow [2024-11-24 00:41:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:38,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:38,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1538 transitions. [2024-11-24 00:41:38,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7755925365607665 [2024-11-24 00:41:38,151 INFO L175 Difference]: Start difference. First operand has 225 places, 189 transitions, 478 flow. Second operand 3 states and 1538 transitions. [2024-11-24 00:41:38,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 184 transitions, 522 flow [2024-11-24 00:41:38,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 184 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:38,155 INFO L231 Difference]: Finished difference. Result has 219 places, 160 transitions, 416 flow [2024-11-24 00:41:38,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=219, PETRI_TRANSITIONS=160} [2024-11-24 00:41:38,156 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, -6 predicate places. [2024-11-24 00:41:38,156 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 160 transitions, 416 flow [2024-11-24 00:41:38,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 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 00:41:38,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:38,157 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:38,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-24 00:41:38,157 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-24 00:41:38,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:38,159 INFO L85 PathProgramCache]: Analyzing trace with hash -834617318, now seen corresponding path program 1 times [2024-11-24 00:41:38,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:38,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301705407] [2024-11-24 00:41:38,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:38,268 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 00:41:38,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:38,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301705407] [2024-11-24 00:41:38,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301705407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:38,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:38,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450756771] [2024-11-24 00:41:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:38,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:38,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:38,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:38,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:38,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 661 [2024-11-24 00:41:38,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 160 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 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 00:41:38,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:38,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 661 [2024-11-24 00:41:38,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:38,474 INFO L124 PetriNetUnfolderBase]: 0/361 cut-off events. [2024-11-24 00:41:38,475 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-24 00:41:38,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 361 events. 0/361 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 191 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2024-11-24 00:41:38,476 INFO L140 encePairwiseOnDemand]: 657/661 looper letters, 20 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-24 00:41:38,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 159 transitions, 460 flow [2024-11-24 00:41:38,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2240 transitions. [2024-11-24 00:41:38,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8472012102874432 [2024-11-24 00:41:38,479 INFO L175 Difference]: Start difference. First operand has 219 places, 160 transitions, 416 flow. Second operand 4 states and 2240 transitions. [2024-11-24 00:41:38,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 159 transitions, 460 flow [2024-11-24 00:41:38,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 159 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:38,483 INFO L231 Difference]: Finished difference. Result has 196 places, 159 transitions, 419 flow [2024-11-24 00:41:38,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=419, PETRI_PLACES=196, PETRI_TRANSITIONS=159} [2024-11-24 00:41:38,484 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, -29 predicate places. [2024-11-24 00:41:38,484 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 159 transitions, 419 flow [2024-11-24 00:41:38,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 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 00:41:38,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:38,485 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:38,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-24 00:41:38,486 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-24 00:41:38,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash -525398024, now seen corresponding path program 1 times [2024-11-24 00:41:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:38,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112125755] [2024-11-24 00:41:38,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:38,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:38,533 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:38,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:38,658 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:38,659 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-24 00:41:38,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-24 00:41:38,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-24 00:41:38,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-24 00:41:38,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-24 00:41:38,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-24 00:41:38,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-24 00:41:38,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-24 00:41:38,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-24 00:41:38,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-24 00:41:38,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-24 00:41:38,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-24 00:41:38,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-24 00:41:38,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-24 00:41:38,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-24 00:41:38,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-24 00:41:38,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-24 00:41:38,662 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:38,663 WARN L246 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:38,663 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-24 00:41:38,798 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:38,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 697 places, 698 transitions, 2076 flow [2024-11-24 00:41:39,060 INFO L124 PetriNetUnfolderBase]: 92/1180 cut-off events. [2024-11-24 00:41:39,060 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-24 00:41:39,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 1180 events. 92/1180 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3260 event pairs, 0 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1386. Up to 36 conditions per place. [2024-11-24 00:41:39,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 697 places, 698 transitions, 2076 flow [2024-11-24 00:41:39,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 201 transitions, 745 flow [2024-11-24 00:41:39,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:39,079 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:39,079 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-24 00:41:39,080 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:39,080 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:39,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:39,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:39,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:39,081 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-24 00:41:39,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash -939184018, now seen corresponding path program 1 times [2024-11-24 00:41:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:39,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52830410] [2024-11-24 00:41:39,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:39,105 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 00:41:39,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52830410] [2024-11-24 00:41:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52830410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:39,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:39,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:39,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375131488] [2024-11-24 00:41:39,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:39,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:39,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:39,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:39,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:39,247 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 698 [2024-11-24 00:41:39,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 201 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 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 00:41:39,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:39,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 698 [2024-11-24 00:41:39,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:39,507 INFO L124 PetriNetUnfolderBase]: 37/908 cut-off events. [2024-11-24 00:41:39,507 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-24 00:41:39,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 908 events. 37/908 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2325 event pairs, 18 based on Foata normal form. 19/850 useless extension candidates. Maximal degree in co-relation 1170. Up to 132 conditions per place. [2024-11-24 00:41:39,517 INFO L140 encePairwiseOnDemand]: 692/698 looper letters, 27 selfloop transitions, 2 changer transitions 1/197 dead transitions. [2024-11-24 00:41:39,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 197 transitions, 795 flow [2024-11-24 00:41:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1731 transitions. [2024-11-24 00:41:39,520 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.826647564469914 [2024-11-24 00:41:39,520 INFO L175 Difference]: Start difference. First operand has 234 places, 201 transitions, 745 flow. Second operand 3 states and 1731 transitions. [2024-11-24 00:41:39,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 197 transitions, 795 flow [2024-11-24 00:41:39,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 197 transitions, 554 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:39,528 INFO L231 Difference]: Finished difference. Result has 234 places, 196 transitions, 498 flow [2024-11-24 00:41:39,528 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=234, PETRI_TRANSITIONS=196} [2024-11-24 00:41:39,529 INFO L279 CegarLoopForPetriNet]: 234 programPoint places, 0 predicate places. [2024-11-24 00:41:39,531 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 196 transitions, 498 flow [2024-11-24 00:41:39,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 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 00:41:39,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:39,532 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:39,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-24 00:41:39,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-24 00:41:39,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1807161023, now seen corresponding path program 1 times [2024-11-24 00:41:39,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:39,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991316590] [2024-11-24 00:41:39,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:39,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:39,555 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 00:41:39,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:39,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991316590] [2024-11-24 00:41:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991316590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:39,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:39,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:39,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375266670] [2024-11-24 00:41:39,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:39,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:39,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:39,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:39,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:39,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 698 [2024-11-24 00:41:39,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 196 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 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 00:41:39,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:39,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 698 [2024-11-24 00:41:39,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:39,915 INFO L124 PetriNetUnfolderBase]: 19/814 cut-off events. [2024-11-24 00:41:39,915 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-24 00:41:39,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 814 events. 19/814 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1715 event pairs, 0 based on Foata normal form. 18/795 useless extension candidates. Maximal degree in co-relation 980. Up to 95 conditions per place. [2024-11-24 00:41:39,920 INFO L140 encePairwiseOnDemand]: 692/698 looper letters, 25 selfloop transitions, 1 changer transitions 24/191 dead transitions. [2024-11-24 00:41:39,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 191 transitions, 544 flow [2024-11-24 00:41:39,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:39,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:39,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1623 transitions. [2024-11-24 00:41:39,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7750716332378224 [2024-11-24 00:41:39,923 INFO L175 Difference]: Start difference. First operand has 234 places, 196 transitions, 498 flow. Second operand 3 states and 1623 transitions. [2024-11-24 00:41:39,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 191 transitions, 544 flow [2024-11-24 00:41:39,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 191 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:39,928 INFO L231 Difference]: Finished difference. Result has 228 places, 167 transitions, 436 flow [2024-11-24 00:41:39,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=228, PETRI_TRANSITIONS=167} [2024-11-24 00:41:39,929 INFO L279 CegarLoopForPetriNet]: 234 programPoint places, -6 predicate places. [2024-11-24 00:41:39,929 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 167 transitions, 436 flow [2024-11-24 00:41:39,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 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 00:41:39,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:39,930 INFO L206 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:39,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-24 00:41:39,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-24 00:41:39,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash 784074814, now seen corresponding path program 1 times [2024-11-24 00:41:39,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:39,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249911839] [2024-11-24 00:41:39,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:39,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:40,042 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 00:41:40,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:40,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249911839] [2024-11-24 00:41:40,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249911839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:40,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:40,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:40,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417067796] [2024-11-24 00:41:40,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:40,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:40,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:40,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:40,100 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 698 [2024-11-24 00:41:40,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 167 transitions, 436 flow. Second operand has 4 states, 4 states have (on average 590.75) internal successors, (2363), 4 states have internal predecessors, (2363), 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 00:41:40,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:40,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 698 [2024-11-24 00:41:40,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:40,238 INFO L124 PetriNetUnfolderBase]: 0/381 cut-off events. [2024-11-24 00:41:40,238 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-24 00:41:40,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 381 events. 0/381 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 203 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2024-11-24 00:41:40,239 INFO L140 encePairwiseOnDemand]: 694/698 looper letters, 21 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2024-11-24 00:41:40,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 166 transitions, 482 flow [2024-11-24 00:41:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2365 transitions. [2024-11-24 00:41:40,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8470630372492837 [2024-11-24 00:41:40,243 INFO L175 Difference]: Start difference. First operand has 228 places, 167 transitions, 436 flow. Second operand 4 states and 2365 transitions. [2024-11-24 00:41:40,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 166 transitions, 482 flow [2024-11-24 00:41:40,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 166 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:40,247 INFO L231 Difference]: Finished difference. Result has 205 places, 166 transitions, 439 flow [2024-11-24 00:41:40,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=439, PETRI_PLACES=205, PETRI_TRANSITIONS=166} [2024-11-24 00:41:40,248 INFO L279 CegarLoopForPetriNet]: 234 programPoint places, -29 predicate places. [2024-11-24 00:41:40,248 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 166 transitions, 439 flow [2024-11-24 00:41:40,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 590.75) internal successors, (2363), 4 states have internal predecessors, (2363), 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 00:41:40,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:40,250 INFO L206 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:40,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-24 00:41:40,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-24 00:41:40,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 492768790, now seen corresponding path program 1 times [2024-11-24 00:41:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147873611] [2024-11-24 00:41:40,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:40,298 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:40,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:40,379 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:40,379 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-24 00:41:40,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-24 00:41:40,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-24 00:41:40,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-24 00:41:40,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-24 00:41:40,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-24 00:41:40,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-24 00:41:40,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-24 00:41:40,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-24 00:41:40,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-24 00:41:40,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-24 00:41:40,382 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:40,382 WARN L246 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:40,382 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-24 00:41:40,512 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:40,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 734 places, 735 transitions, 2226 flow [2024-11-24 00:41:40,846 INFO L124 PetriNetUnfolderBase]: 97/1244 cut-off events. [2024-11-24 00:41:40,846 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-24 00:41:40,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 1244 events. 97/1244 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3623 event pairs, 0 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 1471. Up to 38 conditions per place. [2024-11-24 00:41:40,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 734 places, 735 transitions, 2226 flow [2024-11-24 00:41:40,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 208 transitions, 797 flow [2024-11-24 00:41:40,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:40,859 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:40,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-24 00:41:40,860 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:40,860 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:40,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:40,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:40,861 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:40,861 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-24 00:41:40,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:40,861 INFO L85 PathProgramCache]: Analyzing trace with hash -511386738, now seen corresponding path program 1 times [2024-11-24 00:41:40,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:40,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177183921] [2024-11-24 00:41:40,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:40,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:40,883 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 00:41:40,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177183921] [2024-11-24 00:41:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177183921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:40,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:40,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376660530] [2024-11-24 00:41:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:40,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:40,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:40,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:41,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 735 [2024-11-24 00:41:41,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 208 transitions, 797 flow. Second operand has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 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 00:41:41,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:41,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 735 [2024-11-24 00:41:41,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:41,284 INFO L124 PetriNetUnfolderBase]: 39/957 cut-off events. [2024-11-24 00:41:41,285 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-24 00:41:41,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1345 conditions, 957 events. 39/957 cut-off events. For 1312/1312 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2552 event pairs, 19 based on Foata normal form. 39/915 useless extension candidates. Maximal degree in co-relation 1246. Up to 139 conditions per place. [2024-11-24 00:41:41,296 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 28 selfloop transitions, 2 changer transitions 1/204 dead transitions. [2024-11-24 00:41:41,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 204 transitions, 849 flow [2024-11-24 00:41:41,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1822 transitions. [2024-11-24 00:41:41,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8263038548752835 [2024-11-24 00:41:41,299 INFO L175 Difference]: Start difference. First operand has 243 places, 208 transitions, 797 flow. Second operand 3 states and 1822 transitions. [2024-11-24 00:41:41,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 204 transitions, 849 flow [2024-11-24 00:41:41,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 204 transitions, 576 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:41,308 INFO L231 Difference]: Finished difference. Result has 243 places, 203 transitions, 518 flow [2024-11-24 00:41:41,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=243, PETRI_TRANSITIONS=203} [2024-11-24 00:41:41,309 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, 0 predicate places. [2024-11-24 00:41:41,309 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 203 transitions, 518 flow [2024-11-24 00:41:41,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 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 00:41:41,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:41,311 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:41,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-24 00:41:41,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-24 00:41:41,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash -465629920, now seen corresponding path program 1 times [2024-11-24 00:41:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:41,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365178788] [2024-11-24 00:41:41,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:41,335 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 00:41:41,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365178788] [2024-11-24 00:41:41,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365178788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:41,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:41,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907565276] [2024-11-24 00:41:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:41,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:41,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:41,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:41,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:41,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 735 [2024-11-24 00:41:41,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 203 transitions, 518 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) [2024-11-24 00:41:41,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:41,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 735 [2024-11-24 00:41:41,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:41,633 INFO L124 PetriNetUnfolderBase]: 20/858 cut-off events. [2024-11-24 00:41:41,633 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-24 00:41:41,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 858 events. 20/858 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1872 event pairs, 0 based on Foata normal form. 19/838 useless extension candidates. Maximal degree in co-relation 1034. Up to 100 conditions per place. [2024-11-24 00:41:41,642 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 26 selfloop transitions, 1 changer transitions 24/198 dead transitions. [2024-11-24 00:41:41,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 198 transitions, 566 flow [2024-11-24 00:41:41,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:41,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1708 transitions. [2024-11-24 00:41:41,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7746031746031746 [2024-11-24 00:41:41,644 INFO L175 Difference]: Start difference. First operand has 243 places, 203 transitions, 518 flow. Second operand 3 states and 1708 transitions. [2024-11-24 00:41:41,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 198 transitions, 566 flow [2024-11-24 00:41:41,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 198 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:41,649 INFO L231 Difference]: Finished difference. Result has 237 places, 174 transitions, 456 flow [2024-11-24 00:41:41,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=237, PETRI_TRANSITIONS=174} [2024-11-24 00:41:41,650 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-11-24 00:41:41,650 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 174 transitions, 456 flow [2024-11-24 00:41:41,651 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) [2024-11-24 00:41:41,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:41,651 INFO L206 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:41,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-24 00:41:41,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-24 00:41:41,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:41,653 INFO L85 PathProgramCache]: Analyzing trace with hash -637664757, now seen corresponding path program 1 times [2024-11-24 00:41:41,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:41,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034537366] [2024-11-24 00:41:41,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:41,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:41,828 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 00:41:41,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:41,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034537366] [2024-11-24 00:41:41,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034537366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:41,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:41,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:41,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500235464] [2024-11-24 00:41:41,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:41,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:41,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:41,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:41,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:41,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 616 out of 735 [2024-11-24 00:41:41,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 174 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 00:41:41,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:41,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 616 of 735 [2024-11-24 00:41:41,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:42,079 INFO L124 PetriNetUnfolderBase]: 0/401 cut-off events. [2024-11-24 00:41:42,079 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-24 00:41:42,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 401 events. 0/401 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 216 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2024-11-24 00:41:42,080 INFO L140 encePairwiseOnDemand]: 731/735 looper letters, 22 selfloop transitions, 3 changer transitions 0/173 dead transitions. [2024-11-24 00:41:42,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 173 transitions, 504 flow [2024-11-24 00:41:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2490 transitions. [2024-11-24 00:41:42,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8469387755102041 [2024-11-24 00:41:42,084 INFO L175 Difference]: Start difference. First operand has 237 places, 174 transitions, 456 flow. Second operand 4 states and 2490 transitions. [2024-11-24 00:41:42,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 173 transitions, 504 flow [2024-11-24 00:41:42,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 173 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:42,089 INFO L231 Difference]: Finished difference. Result has 214 places, 173 transitions, 459 flow [2024-11-24 00:41:42,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=459, PETRI_PLACES=214, PETRI_TRANSITIONS=173} [2024-11-24 00:41:42,090 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -29 predicate places. [2024-11-24 00:41:42,090 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 173 transitions, 459 flow [2024-11-24 00:41:42,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 00:41:42,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:42,091 INFO L206 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:42,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-24 00:41:42,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-24 00:41:42,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:42,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1093029598, now seen corresponding path program 1 times [2024-11-24 00:41:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:42,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535833292] [2024-11-24 00:41:42,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:42,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:42,155 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:42,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:42,257 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:42,257 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-24 00:41:42,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-24 00:41:42,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-24 00:41:42,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-24 00:41:42,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-24 00:41:42,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-24 00:41:42,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-24 00:41:42,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-24 00:41:42,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-24 00:41:42,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-24 00:41:42,260 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:42,260 WARN L246 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:42,260 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-24 00:41:42,420 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:42,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 771 places, 772 transitions, 2380 flow [2024-11-24 00:41:42,791 INFO L124 PetriNetUnfolderBase]: 102/1308 cut-off events. [2024-11-24 00:41:42,792 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-24 00:41:42,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 1308 events. 102/1308 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3798 event pairs, 0 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 1557. Up to 40 conditions per place. [2024-11-24 00:41:42,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 771 places, 772 transitions, 2380 flow [2024-11-24 00:41:42,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 215 transitions, 851 flow [2024-11-24 00:41:42,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:42,813 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:42,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-24 00:41:42,814 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:42,814 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:42,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:42,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:42,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:42,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 00:41:42,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:42,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1632558862, now seen corresponding path program 1 times [2024-11-24 00:41:42,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:42,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647366530] [2024-11-24 00:41:42,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:42,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:42,842 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 00:41:42,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:42,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647366530] [2024-11-24 00:41:42,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647366530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:42,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:42,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198576418] [2024-11-24 00:41:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:42,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:42,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:42,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:42,956 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 772 [2024-11-24 00:41:42,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 215 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 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 00:41:42,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:42,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 772 [2024-11-24 00:41:42,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:43,310 INFO L124 PetriNetUnfolderBase]: 41/1006 cut-off events. [2024-11-24 00:41:43,310 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-24 00:41:43,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 1006 events. 41/1006 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2575 event pairs, 20 based on Foata normal form. 21/942 useless extension candidates. Maximal degree in co-relation 1323. Up to 146 conditions per place. [2024-11-24 00:41:43,331 INFO L140 encePairwiseOnDemand]: 766/772 looper letters, 29 selfloop transitions, 2 changer transitions 1/211 dead transitions. [2024-11-24 00:41:43,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 211 transitions, 905 flow [2024-11-24 00:41:43,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1913 transitions. [2024-11-24 00:41:43,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.825993091537133 [2024-11-24 00:41:43,334 INFO L175 Difference]: Start difference. First operand has 252 places, 215 transitions, 851 flow. Second operand 3 states and 1913 transitions. [2024-11-24 00:41:43,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 211 transitions, 905 flow [2024-11-24 00:41:43,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 211 transitions, 598 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:43,341 INFO L231 Difference]: Finished difference. Result has 252 places, 210 transitions, 538 flow [2024-11-24 00:41:43,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=252, PETRI_TRANSITIONS=210} [2024-11-24 00:41:43,342 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, 0 predicate places. [2024-11-24 00:41:43,342 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 210 transitions, 538 flow [2024-11-24 00:41:43,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 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 00:41:43,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:43,343 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:43,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-24 00:41:43,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 00:41:43,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:43,344 INFO L85 PathProgramCache]: Analyzing trace with hash -640152540, now seen corresponding path program 1 times [2024-11-24 00:41:43,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:43,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495208533] [2024-11-24 00:41:43,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:43,369 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 00:41:43,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:43,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495208533] [2024-11-24 00:41:43,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495208533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:43,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:43,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:43,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171604680] [2024-11-24 00:41:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:43,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:43,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:43,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:43,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:43,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 772 [2024-11-24 00:41:43,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 210 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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 00:41:43,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:43,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 772 [2024-11-24 00:41:43,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:43,735 INFO L124 PetriNetUnfolderBase]: 21/902 cut-off events. [2024-11-24 00:41:43,735 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-24 00:41:43,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 902 events. 21/902 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1913 event pairs, 0 based on Foata normal form. 20/881 useless extension candidates. Maximal degree in co-relation 1088. Up to 105 conditions per place. [2024-11-24 00:41:43,741 INFO L140 encePairwiseOnDemand]: 766/772 looper letters, 27 selfloop transitions, 1 changer transitions 24/205 dead transitions. [2024-11-24 00:41:43,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 205 transitions, 588 flow [2024-11-24 00:41:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-11-24 00:41:43,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7741796200345423 [2024-11-24 00:41:43,744 INFO L175 Difference]: Start difference. First operand has 252 places, 210 transitions, 538 flow. Second operand 3 states and 1793 transitions. [2024-11-24 00:41:43,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 205 transitions, 588 flow [2024-11-24 00:41:43,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 205 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:43,747 INFO L231 Difference]: Finished difference. Result has 246 places, 181 transitions, 476 flow [2024-11-24 00:41:43,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=246, PETRI_TRANSITIONS=181} [2024-11-24 00:41:43,748 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -6 predicate places. [2024-11-24 00:41:43,748 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 181 transitions, 476 flow [2024-11-24 00:41:43,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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 00:41:43,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:43,749 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:43,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-24 00:41:43,749 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 00:41:43,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1849461729, now seen corresponding path program 1 times [2024-11-24 00:41:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:43,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927045907] [2024-11-24 00:41:43,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:43,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:43,873 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 00:41:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927045907] [2024-11-24 00:41:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927045907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:43,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:43,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:43,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431248070] [2024-11-24 00:41:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:43,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:43,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:43,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:43,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 772 [2024-11-24 00:41:43,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 181 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 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 00:41:43,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:43,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 772 [2024-11-24 00:41:43,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:44,099 INFO L124 PetriNetUnfolderBase]: 0/421 cut-off events. [2024-11-24 00:41:44,099 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-24 00:41:44,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 421 events. 0/421 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 227 event pairs, 0 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2024-11-24 00:41:44,100 INFO L140 encePairwiseOnDemand]: 768/772 looper letters, 23 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-24 00:41:44,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 180 transitions, 526 flow [2024-11-24 00:41:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2615 transitions. [2024-11-24 00:41:44,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8468264248704663 [2024-11-24 00:41:44,104 INFO L175 Difference]: Start difference. First operand has 246 places, 181 transitions, 476 flow. Second operand 4 states and 2615 transitions. [2024-11-24 00:41:44,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 180 transitions, 526 flow [2024-11-24 00:41:44,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 180 transitions, 525 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:44,107 INFO L231 Difference]: Finished difference. Result has 223 places, 180 transitions, 479 flow [2024-11-24 00:41:44,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=479, PETRI_PLACES=223, PETRI_TRANSITIONS=180} [2024-11-24 00:41:44,108 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -29 predicate places. [2024-11-24 00:41:44,108 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 180 transitions, 479 flow [2024-11-24 00:41:44,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 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 00:41:44,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:44,110 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:44,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-24 00:41:44,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 00:41:44,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:44,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1611980484, now seen corresponding path program 1 times [2024-11-24 00:41:44,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:44,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632187664] [2024-11-24 00:41:44,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:44,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:44,153 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:44,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:44,233 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-24 00:41:44,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-24 00:41:44,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-24 00:41:44,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-24 00:41:44,234 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:44,235 WARN L246 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:44,235 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-24 00:41:44,368 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:44,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 808 places, 809 transitions, 2538 flow [2024-11-24 00:41:44,710 INFO L124 PetriNetUnfolderBase]: 107/1372 cut-off events. [2024-11-24 00:41:44,710 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-24 00:41:44,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1372 events. 107/1372 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3997 event pairs, 0 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 1644. Up to 42 conditions per place. [2024-11-24 00:41:44,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 808 places, 809 transitions, 2538 flow [2024-11-24 00:41:44,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 222 transitions, 907 flow [2024-11-24 00:41:44,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:44,731 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:44,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-24 00:41:44,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:44,733 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:44,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:44,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:44,733 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:44,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 00:41:44,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:44,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1197685486, now seen corresponding path program 1 times [2024-11-24 00:41:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:44,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982182181] [2024-11-24 00:41:44,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:44,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:44,756 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 00:41:44,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:44,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982182181] [2024-11-24 00:41:44,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982182181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:44,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:44,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257679125] [2024-11-24 00:41:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:44,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:44,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:44,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:44,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:44,899 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 656 out of 809 [2024-11-24 00:41:44,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 222 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 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 00:41:44,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:44,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 656 of 809 [2024-11-24 00:41:44,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:45,221 INFO L124 PetriNetUnfolderBase]: 43/1055 cut-off events. [2024-11-24 00:41:45,221 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-24 00:41:45,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1055 events. 43/1055 cut-off events. For 1751/1751 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2706 event pairs, 21 based on Foata normal form. 22/988 useless extension candidates. Maximal degree in co-relation 1401. Up to 153 conditions per place. [2024-11-24 00:41:45,231 INFO L140 encePairwiseOnDemand]: 803/809 looper letters, 30 selfloop transitions, 2 changer transitions 1/218 dead transitions. [2024-11-24 00:41:45,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 218 transitions, 963 flow [2024-11-24 00:41:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2004 transitions. [2024-11-24 00:41:45,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8257107540173053 [2024-11-24 00:41:45,234 INFO L175 Difference]: Start difference. First operand has 261 places, 222 transitions, 907 flow. Second operand 3 states and 2004 transitions. [2024-11-24 00:41:45,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 218 transitions, 963 flow [2024-11-24 00:41:45,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 218 transitions, 620 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:45,242 INFO L231 Difference]: Finished difference. Result has 261 places, 217 transitions, 558 flow [2024-11-24 00:41:45,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=261, PETRI_TRANSITIONS=217} [2024-11-24 00:41:45,244 INFO L279 CegarLoopForPetriNet]: 261 programPoint places, 0 predicate places. [2024-11-24 00:41:45,244 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 217 transitions, 558 flow [2024-11-24 00:41:45,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 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 00:41:45,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:45,245 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:45,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-24 00:41:45,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 00:41:45,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1964238413, now seen corresponding path program 1 times [2024-11-24 00:41:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38358932] [2024-11-24 00:41:45,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:45,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:45,270 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 00:41:45,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:45,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38358932] [2024-11-24 00:41:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38358932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:45,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:45,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:45,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725271133] [2024-11-24 00:41:45,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:45,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:45,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:45,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:45,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:45,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 809 [2024-11-24 00:41:45,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 217 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 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 00:41:45,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:45,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 809 [2024-11-24 00:41:45,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:45,573 INFO L124 PetriNetUnfolderBase]: 22/946 cut-off events. [2024-11-24 00:41:45,573 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-24 00:41:45,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 946 events. 22/946 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2012 event pairs, 0 based on Foata normal form. 21/924 useless extension candidates. Maximal degree in co-relation 1142. Up to 110 conditions per place. [2024-11-24 00:41:45,579 INFO L140 encePairwiseOnDemand]: 803/809 looper letters, 28 selfloop transitions, 1 changer transitions 24/212 dead transitions. [2024-11-24 00:41:45,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 212 transitions, 610 flow [2024-11-24 00:41:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:45,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1878 transitions. [2024-11-24 00:41:45,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7737948084054388 [2024-11-24 00:41:45,581 INFO L175 Difference]: Start difference. First operand has 261 places, 217 transitions, 558 flow. Second operand 3 states and 1878 transitions. [2024-11-24 00:41:45,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 212 transitions, 610 flow [2024-11-24 00:41:45,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 212 transitions, 606 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:45,585 INFO L231 Difference]: Finished difference. Result has 255 places, 188 transitions, 496 flow [2024-11-24 00:41:45,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=255, PETRI_TRANSITIONS=188} [2024-11-24 00:41:45,585 INFO L279 CegarLoopForPetriNet]: 261 programPoint places, -6 predicate places. [2024-11-24 00:41:45,585 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 188 transitions, 496 flow [2024-11-24 00:41:45,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 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 00:41:45,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:45,586 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:45,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-24 00:41:45,587 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 00:41:45,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:45,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1181918240, now seen corresponding path program 1 times [2024-11-24 00:41:45,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:45,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530841928] [2024-11-24 00:41:45,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:45,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:45,703 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 00:41:45,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:45,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530841928] [2024-11-24 00:41:45,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530841928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:45,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:45,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:45,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639748835] [2024-11-24 00:41:45,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:45,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:45,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:45,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:45,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:45,803 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 809 [2024-11-24 00:41:45,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 188 transitions, 496 flow. Second operand has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 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 00:41:45,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:45,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 809 [2024-11-24 00:41:45,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:45,971 INFO L124 PetriNetUnfolderBase]: 0/441 cut-off events. [2024-11-24 00:41:45,971 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-24 00:41:45,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 441 events. 0/441 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 239 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2024-11-24 00:41:45,972 INFO L140 encePairwiseOnDemand]: 805/809 looper letters, 24 selfloop transitions, 3 changer transitions 0/187 dead transitions. [2024-11-24 00:41:45,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 187 transitions, 548 flow [2024-11-24 00:41:45,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:45,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2740 transitions. [2024-11-24 00:41:45,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8467243510506799 [2024-11-24 00:41:45,976 INFO L175 Difference]: Start difference. First operand has 255 places, 188 transitions, 496 flow. Second operand 4 states and 2740 transitions. [2024-11-24 00:41:45,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 187 transitions, 548 flow [2024-11-24 00:41:45,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 187 transitions, 547 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:45,980 INFO L231 Difference]: Finished difference. Result has 232 places, 187 transitions, 499 flow [2024-11-24 00:41:45,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=499, PETRI_PLACES=232, PETRI_TRANSITIONS=187} [2024-11-24 00:41:45,981 INFO L279 CegarLoopForPetriNet]: 261 programPoint places, -29 predicate places. [2024-11-24 00:41:45,981 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 187 transitions, 499 flow [2024-11-24 00:41:45,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 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 00:41:45,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:45,983 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:45,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-24 00:41:45,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-24 00:41:45,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -947091836, now seen corresponding path program 1 times [2024-11-24 00:41:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995815439] [2024-11-24 00:41:45,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:46,037 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:46,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:46,140 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:46,140 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-24 00:41:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-24 00:41:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-24 00:41:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-24 00:41:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-24 00:41:46,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-24 00:41:46,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-24 00:41:46,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-24 00:41:46,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-24 00:41:46,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-24 00:41:46,143 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:46,143 WARN L246 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:46,143 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-24 00:41:46,267 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:46,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 845 places, 846 transitions, 2700 flow [2024-11-24 00:41:46,653 INFO L124 PetriNetUnfolderBase]: 112/1436 cut-off events. [2024-11-24 00:41:46,653 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-24 00:41:46,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 1436 events. 112/1436 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4139 event pairs, 0 based on Foata normal form. 0/1254 useless extension candidates. Maximal degree in co-relation 1732. Up to 44 conditions per place. [2024-11-24 00:41:46,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 845 places, 846 transitions, 2700 flow [2024-11-24 00:41:46,674 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 229 transitions, 965 flow [2024-11-24 00:41:46,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:46,676 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:46,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-24 00:41:46,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:46,677 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:46,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:46,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:46,677 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:46,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-24 00:41:46,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1816006866, now seen corresponding path program 1 times [2024-11-24 00:41:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:46,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884853910] [2024-11-24 00:41:46,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:46,706 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 00:41:46,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:46,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884853910] [2024-11-24 00:41:46,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884853910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:46,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:46,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646172090] [2024-11-24 00:41:46,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:46,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:46,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:46,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:46,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 686 out of 846 [2024-11-24 00:41:46,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 229 transitions, 965 flow. Second operand has 3 states, 3 states have (on average 687.3333333333334) internal successors, (2062), 3 states have internal predecessors, (2062), 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 00:41:46,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:46,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 686 of 846 [2024-11-24 00:41:46,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:47,191 INFO L124 PetriNetUnfolderBase]: 45/1104 cut-off events. [2024-11-24 00:41:47,192 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-24 00:41:47,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 1104 events. 45/1104 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2958 event pairs, 22 based on Foata normal form. 45/1056 useless extension candidates. Maximal degree in co-relation 1480. Up to 160 conditions per place. [2024-11-24 00:41:47,206 INFO L140 encePairwiseOnDemand]: 840/846 looper letters, 31 selfloop transitions, 2 changer transitions 1/225 dead transitions. [2024-11-24 00:41:47,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 225 transitions, 1023 flow [2024-11-24 00:41:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2095 transitions. [2024-11-24 00:41:47,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8254531126871553 [2024-11-24 00:41:47,210 INFO L175 Difference]: Start difference. First operand has 270 places, 229 transitions, 965 flow. Second operand 3 states and 2095 transitions. [2024-11-24 00:41:47,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 225 transitions, 1023 flow [2024-11-24 00:41:47,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 225 transitions, 642 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:47,220 INFO L231 Difference]: Finished difference. Result has 270 places, 224 transitions, 578 flow [2024-11-24 00:41:47,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=270, PETRI_TRANSITIONS=224} [2024-11-24 00:41:47,221 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 0 predicate places. [2024-11-24 00:41:47,221 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 224 transitions, 578 flow [2024-11-24 00:41:47,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 687.3333333333334) internal successors, (2062), 3 states have internal predecessors, (2062), 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 00:41:47,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:47,222 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:47,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-24 00:41:47,222 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-24 00:41:47,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1242391653, now seen corresponding path program 1 times [2024-11-24 00:41:47,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:47,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389063109] [2024-11-24 00:41:47,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:47,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:47,250 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 00:41:47,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:47,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389063109] [2024-11-24 00:41:47,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389063109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:47,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:47,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:47,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845005682] [2024-11-24 00:41:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:47,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:47,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:47,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:47,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:47,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 846 [2024-11-24 00:41:47,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 224 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 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 00:41:47,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:47,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 846 [2024-11-24 00:41:47,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:47,634 INFO L124 PetriNetUnfolderBase]: 23/990 cut-off events. [2024-11-24 00:41:47,634 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-24 00:41:47,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 990 events. 23/990 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2177 event pairs, 0 based on Foata normal form. 22/967 useless extension candidates. Maximal degree in co-relation 1196. Up to 115 conditions per place. [2024-11-24 00:41:47,641 INFO L140 encePairwiseOnDemand]: 840/846 looper letters, 29 selfloop transitions, 1 changer transitions 24/219 dead transitions. [2024-11-24 00:41:47,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 219 transitions, 632 flow [2024-11-24 00:41:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1963 transitions. [2024-11-24 00:41:47,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7734436564223798 [2024-11-24 00:41:47,643 INFO L175 Difference]: Start difference. First operand has 270 places, 224 transitions, 578 flow. Second operand 3 states and 1963 transitions. [2024-11-24 00:41:47,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 219 transitions, 632 flow [2024-11-24 00:41:47,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 219 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:47,647 INFO L231 Difference]: Finished difference. Result has 264 places, 195 transitions, 516 flow [2024-11-24 00:41:47,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=264, PETRI_TRANSITIONS=195} [2024-11-24 00:41:47,647 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, -6 predicate places. [2024-11-24 00:41:47,647 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 195 transitions, 516 flow [2024-11-24 00:41:47,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 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 00:41:47,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:47,648 INFO L206 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:47,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-24 00:41:47,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-24 00:41:47,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:47,651 INFO L85 PathProgramCache]: Analyzing trace with hash 328231208, now seen corresponding path program 1 times [2024-11-24 00:41:47,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:47,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035006000] [2024-11-24 00:41:47,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:47,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:47,769 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 00:41:47,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:47,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035006000] [2024-11-24 00:41:47,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035006000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:47,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294965149] [2024-11-24 00:41:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:47,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:47,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:47,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:47,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 709 out of 846 [2024-11-24 00:41:47,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 195 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 715.75) internal successors, (2863), 4 states have internal predecessors, (2863), 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 00:41:47,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:47,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 709 of 846 [2024-11-24 00:41:47,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:48,081 INFO L124 PetriNetUnfolderBase]: 0/461 cut-off events. [2024-11-24 00:41:48,081 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-24 00:41:48,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 461 events. 0/461 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 251 event pairs, 0 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2024-11-24 00:41:48,082 INFO L140 encePairwiseOnDemand]: 842/846 looper letters, 25 selfloop transitions, 3 changer transitions 0/194 dead transitions. [2024-11-24 00:41:48,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 194 transitions, 570 flow [2024-11-24 00:41:48,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2865 transitions. [2024-11-24 00:41:48,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8466312056737588 [2024-11-24 00:41:48,087 INFO L175 Difference]: Start difference. First operand has 264 places, 195 transitions, 516 flow. Second operand 4 states and 2865 transitions. [2024-11-24 00:41:48,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 194 transitions, 570 flow [2024-11-24 00:41:48,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 194 transitions, 569 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:48,092 INFO L231 Difference]: Finished difference. Result has 241 places, 194 transitions, 519 flow [2024-11-24 00:41:48,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=519, PETRI_PLACES=241, PETRI_TRANSITIONS=194} [2024-11-24 00:41:48,092 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, -29 predicate places. [2024-11-24 00:41:48,093 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 194 transitions, 519 flow [2024-11-24 00:41:48,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 715.75) internal successors, (2863), 4 states have internal predecessors, (2863), 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 00:41:48,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:48,094 INFO L206 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:48,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-24 00:41:48,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-24 00:41:48,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1184631066, now seen corresponding path program 1 times [2024-11-24 00:41:48,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:48,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636334855] [2024-11-24 00:41:48,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:48,163 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:48,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:48,292 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:48,292 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-24 00:41:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-24 00:41:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-24 00:41:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-24 00:41:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-24 00:41:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-24 00:41:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-24 00:41:48,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-24 00:41:48,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-24 00:41:48,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-24 00:41:48,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-24 00:41:48,297 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:48,297 WARN L246 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:48,297 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-24 00:41:48,457 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:48,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 882 places, 883 transitions, 2866 flow [2024-11-24 00:41:48,902 INFO L124 PetriNetUnfolderBase]: 117/1500 cut-off events. [2024-11-24 00:41:48,902 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-24 00:41:48,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1866 conditions, 1500 events. 117/1500 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4249 event pairs, 0 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1821. Up to 46 conditions per place. [2024-11-24 00:41:48,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 882 places, 883 transitions, 2866 flow [2024-11-24 00:41:48,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 236 transitions, 1025 flow [2024-11-24 00:41:48,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:48,919 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:48,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-24 00:41:48,920 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:48,920 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:48,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:48,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:48,920 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:48,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-24 00:41:48,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1181416398, now seen corresponding path program 1 times [2024-11-24 00:41:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447026556] [2024-11-24 00:41:48,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:48,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:48,946 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 00:41:48,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:48,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447026556] [2024-11-24 00:41:48,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447026556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:48,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:48,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:48,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466990444] [2024-11-24 00:41:48,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:48,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:48,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:48,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:48,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:49,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 883 [2024-11-24 00:41:49,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 236 transitions, 1025 flow. Second operand has 3 states, 3 states have (on average 717.3333333333334) internal successors, (2152), 3 states have internal predecessors, (2152), 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 00:41:49,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:49,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 883 [2024-11-24 00:41:49,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:49,425 INFO L124 PetriNetUnfolderBase]: 47/1153 cut-off events. [2024-11-24 00:41:49,426 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-24 00:41:49,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1153 events. 47/1153 cut-off events. For 2278/2278 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3150 event pairs, 23 based on Foata normal form. 24/1080 useless extension candidates. Maximal degree in co-relation 1560. Up to 167 conditions per place. [2024-11-24 00:41:49,439 INFO L140 encePairwiseOnDemand]: 877/883 looper letters, 32 selfloop transitions, 2 changer transitions 1/232 dead transitions. [2024-11-24 00:41:49,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 232 transitions, 1085 flow [2024-11-24 00:41:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:49,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2186 transitions. [2024-11-24 00:41:49,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8252170630426576 [2024-11-24 00:41:49,442 INFO L175 Difference]: Start difference. First operand has 279 places, 236 transitions, 1025 flow. Second operand 3 states and 2186 transitions. [2024-11-24 00:41:49,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 232 transitions, 1085 flow [2024-11-24 00:41:49,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 232 transitions, 664 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:49,451 INFO L231 Difference]: Finished difference. Result has 279 places, 231 transitions, 598 flow [2024-11-24 00:41:49,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=279, PETRI_TRANSITIONS=231} [2024-11-24 00:41:49,455 INFO L279 CegarLoopForPetriNet]: 279 programPoint places, 0 predicate places. [2024-11-24 00:41:49,455 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 231 transitions, 598 flow [2024-11-24 00:41:49,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 717.3333333333334) internal successors, (2152), 3 states have internal predecessors, (2152), 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 00:41:49,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:49,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:49,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-24 00:41:49,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-24 00:41:49,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1670108146, now seen corresponding path program 1 times [2024-11-24 00:41:49,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:49,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149883364] [2024-11-24 00:41:49,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:49,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:49,483 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 00:41:49,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:49,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149883364] [2024-11-24 00:41:49,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149883364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:49,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:49,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:49,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473051593] [2024-11-24 00:41:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:49,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:49,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:49,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:49,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:49,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 670 out of 883 [2024-11-24 00:41:49,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 231 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 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 00:41:49,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:49,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 670 of 883 [2024-11-24 00:41:49,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:49,865 INFO L124 PetriNetUnfolderBase]: 24/1034 cut-off events. [2024-11-24 00:41:49,865 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-24 00:41:49,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 1034 events. 24/1034 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2343 event pairs, 0 based on Foata normal form. 23/1010 useless extension candidates. Maximal degree in co-relation 1250. Up to 120 conditions per place. [2024-11-24 00:41:49,877 INFO L140 encePairwiseOnDemand]: 877/883 looper letters, 30 selfloop transitions, 1 changer transitions 24/226 dead transitions. [2024-11-24 00:41:49,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 226 transitions, 654 flow [2024-11-24 00:41:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:49,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2048 transitions. [2024-11-24 00:41:49,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.773121932804832 [2024-11-24 00:41:49,880 INFO L175 Difference]: Start difference. First operand has 279 places, 231 transitions, 598 flow. Second operand 3 states and 2048 transitions. [2024-11-24 00:41:49,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 226 transitions, 654 flow [2024-11-24 00:41:49,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 226 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:49,951 INFO L231 Difference]: Finished difference. Result has 273 places, 202 transitions, 536 flow [2024-11-24 00:41:49,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=273, PETRI_TRANSITIONS=202} [2024-11-24 00:41:49,951 INFO L279 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2024-11-24 00:41:49,951 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 202 transitions, 536 flow [2024-11-24 00:41:49,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 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 00:41:49,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:49,952 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:49,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-24 00:41:49,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-24 00:41:49,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash -248833703, now seen corresponding path program 1 times [2024-11-24 00:41:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:49,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382348901] [2024-11-24 00:41:49,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:50,069 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 00:41:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:50,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382348901] [2024-11-24 00:41:50,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382348901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:50,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:50,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606778109] [2024-11-24 00:41:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:50,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:50,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:50,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:50,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:50,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 740 out of 883 [2024-11-24 00:41:50,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 202 transitions, 536 flow. Second operand has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 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 00:41:50,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:50,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 740 of 883 [2024-11-24 00:41:50,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:50,324 INFO L124 PetriNetUnfolderBase]: 0/481 cut-off events. [2024-11-24 00:41:50,324 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-24 00:41:50,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 481 events. 0/481 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 263 event pairs, 0 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2024-11-24 00:41:50,325 INFO L140 encePairwiseOnDemand]: 879/883 looper letters, 26 selfloop transitions, 3 changer transitions 0/201 dead transitions. [2024-11-24 00:41:50,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 201 transitions, 592 flow [2024-11-24 00:41:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2990 transitions. [2024-11-24 00:41:50,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8465458663646659 [2024-11-24 00:41:50,328 INFO L175 Difference]: Start difference. First operand has 273 places, 202 transitions, 536 flow. Second operand 4 states and 2990 transitions. [2024-11-24 00:41:50,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 201 transitions, 592 flow [2024-11-24 00:41:50,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 201 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:50,332 INFO L231 Difference]: Finished difference. Result has 250 places, 201 transitions, 539 flow [2024-11-24 00:41:50,332 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=539, PETRI_PLACES=250, PETRI_TRANSITIONS=201} [2024-11-24 00:41:50,333 INFO L279 CegarLoopForPetriNet]: 279 programPoint places, -29 predicate places. [2024-11-24 00:41:50,333 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 201 transitions, 539 flow [2024-11-24 00:41:50,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 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 00:41:50,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:50,334 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:50,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-24 00:41:50,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-24 00:41:50,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:50,337 INFO L85 PathProgramCache]: Analyzing trace with hash -65744610, now seen corresponding path program 1 times [2024-11-24 00:41:50,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044569081] [2024-11-24 00:41:50,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:50,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:50,385 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:50,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:50,499 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-24 00:41:50,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-24 00:41:50,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-24 00:41:50,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-24 00:41:50,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-24 00:41:50,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-24 00:41:50,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-24 00:41:50,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-24 00:41:50,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-24 00:41:50,502 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:50,502 WARN L246 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:50,502 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-24 00:41:50,649 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:50,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 919 places, 920 transitions, 3036 flow [2024-11-24 00:41:51,058 INFO L124 PetriNetUnfolderBase]: 122/1564 cut-off events. [2024-11-24 00:41:51,058 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-24 00:41:51,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1958 conditions, 1564 events. 122/1564 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4394 event pairs, 0 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 1911. Up to 48 conditions per place. [2024-11-24 00:41:51,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 919 places, 920 transitions, 3036 flow [2024-11-24 00:41:51,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 288 places, 243 transitions, 1087 flow [2024-11-24 00:41:51,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:51,078 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:51,078 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-24 00:41:51,080 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:51,080 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:51,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:51,080 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:51,080 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:51,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-24 00:41:51,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1600020686, now seen corresponding path program 1 times [2024-11-24 00:41:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:51,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990865063] [2024-11-24 00:41:51,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:51,108 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 00:41:51,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:51,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990865063] [2024-11-24 00:41:51,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990865063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:51,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:51,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:51,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792314065] [2024-11-24 00:41:51,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:51,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:51,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:51,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:51,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:51,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 746 out of 920 [2024-11-24 00:41:51,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 243 transitions, 1087 flow. Second operand has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 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 00:41:51,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:51,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 746 of 920 [2024-11-24 00:41:51,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:51,638 INFO L124 PetriNetUnfolderBase]: 49/1202 cut-off events. [2024-11-24 00:41:51,639 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-24 00:41:51,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1202 events. 49/1202 cut-off events. For 2577/2577 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3110 event pairs, 24 based on Foata normal form. 25/1126 useless extension candidates. Maximal degree in co-relation 1641. Up to 174 conditions per place. [2024-11-24 00:41:51,656 INFO L140 encePairwiseOnDemand]: 914/920 looper letters, 33 selfloop transitions, 2 changer transitions 1/239 dead transitions. [2024-11-24 00:41:51,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 239 transitions, 1149 flow [2024-11-24 00:41:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:51,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2277 transitions. [2024-11-24 00:41:51,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.825 [2024-11-24 00:41:51,659 INFO L175 Difference]: Start difference. First operand has 288 places, 243 transitions, 1087 flow. Second operand 3 states and 2277 transitions. [2024-11-24 00:41:51,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 239 transitions, 1149 flow [2024-11-24 00:41:51,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 239 transitions, 686 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:51,670 INFO L231 Difference]: Finished difference. Result has 288 places, 238 transitions, 618 flow [2024-11-24 00:41:51,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=288, PETRI_TRANSITIONS=238} [2024-11-24 00:41:51,671 INFO L279 CegarLoopForPetriNet]: 288 programPoint places, 0 predicate places. [2024-11-24 00:41:51,672 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 238 transitions, 618 flow [2024-11-24 00:41:51,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 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 00:41:51,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:51,673 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:51,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-24 00:41:51,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-24 00:41:51,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 681088934, now seen corresponding path program 1 times [2024-11-24 00:41:51,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:51,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500450147] [2024-11-24 00:41:51,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:51,760 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 00:41:51,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:51,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500450147] [2024-11-24 00:41:51,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500450147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:51,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:51,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004646234] [2024-11-24 00:41:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:51,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:51,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:51,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:51,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:51,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 920 [2024-11-24 00:41:51,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 238 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 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 00:41:51,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:51,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 920 [2024-11-24 00:41:51,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:52,130 INFO L124 PetriNetUnfolderBase]: 25/1078 cut-off events. [2024-11-24 00:41:52,130 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-24 00:41:52,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 1078 events. 25/1078 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2310 event pairs, 0 based on Foata normal form. 24/1053 useless extension candidates. Maximal degree in co-relation 1304. Up to 125 conditions per place. [2024-11-24 00:41:52,138 INFO L140 encePairwiseOnDemand]: 914/920 looper letters, 31 selfloop transitions, 1 changer transitions 24/233 dead transitions. [2024-11-24 00:41:52,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 233 transitions, 676 flow [2024-11-24 00:41:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2133 transitions. [2024-11-24 00:41:52,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7728260869565218 [2024-11-24 00:41:52,141 INFO L175 Difference]: Start difference. First operand has 288 places, 238 transitions, 618 flow. Second operand 3 states and 2133 transitions. [2024-11-24 00:41:52,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 233 transitions, 676 flow [2024-11-24 00:41:52,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 233 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:52,146 INFO L231 Difference]: Finished difference. Result has 282 places, 209 transitions, 556 flow [2024-11-24 00:41:52,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=282, PETRI_TRANSITIONS=209} [2024-11-24 00:41:52,147 INFO L279 CegarLoopForPetriNet]: 288 programPoint places, -6 predicate places. [2024-11-24 00:41:52,147 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 209 transitions, 556 flow [2024-11-24 00:41:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 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 00:41:52,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:52,148 INFO L206 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:52,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-24 00:41:52,148 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-24 00:41:52,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash 363664147, now seen corresponding path program 1 times [2024-11-24 00:41:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:52,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888278031] [2024-11-24 00:41:52,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:52,291 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 00:41:52,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:52,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888278031] [2024-11-24 00:41:52,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888278031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:52,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:52,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:52,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736489360] [2024-11-24 00:41:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:52,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:52,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:52,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:52,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 771 out of 920 [2024-11-24 00:41:52,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 209 transitions, 556 flow. Second operand has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 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 00:41:52,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:52,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 771 of 920 [2024-11-24 00:41:52,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:52,550 INFO L124 PetriNetUnfolderBase]: 0/501 cut-off events. [2024-11-24 00:41:52,550 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-24 00:41:52,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 501 events. 0/501 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 276 event pairs, 0 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2024-11-24 00:41:52,551 INFO L140 encePairwiseOnDemand]: 916/920 looper letters, 27 selfloop transitions, 3 changer transitions 0/208 dead transitions. [2024-11-24 00:41:52,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 208 transitions, 614 flow [2024-11-24 00:41:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:52,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3115 transitions. [2024-11-24 00:41:52,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8464673913043478 [2024-11-24 00:41:52,556 INFO L175 Difference]: Start difference. First operand has 282 places, 209 transitions, 556 flow. Second operand 4 states and 3115 transitions. [2024-11-24 00:41:52,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 208 transitions, 614 flow [2024-11-24 00:41:52,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 208 transitions, 613 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:52,560 INFO L231 Difference]: Finished difference. Result has 259 places, 208 transitions, 559 flow [2024-11-24 00:41:52,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=559, PETRI_PLACES=259, PETRI_TRANSITIONS=208} [2024-11-24 00:41:52,561 INFO L279 CegarLoopForPetriNet]: 288 programPoint places, -29 predicate places. [2024-11-24 00:41:52,561 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 208 transitions, 559 flow [2024-11-24 00:41:52,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 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 00:41:52,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:52,562 INFO L206 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:52,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-24 00:41:52,563 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-24 00:41:52,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1614346576, now seen corresponding path program 1 times [2024-11-24 00:41:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:52,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037642215] [2024-11-24 00:41:52,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:52,619 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:52,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:52,739 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-24 00:41:52,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-24 00:41:52,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-24 00:41:52,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-24 00:41:52,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-24 00:41:52,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-24 00:41:52,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-24 00:41:52,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-24 00:41:52,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-24 00:41:52,742 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:52,742 WARN L246 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:52,742 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-24 00:41:52,876 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:52,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 956 places, 957 transitions, 3210 flow [2024-11-24 00:41:53,326 INFO L124 PetriNetUnfolderBase]: 127/1628 cut-off events. [2024-11-24 00:41:53,326 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-24 00:41:53,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2051 conditions, 1628 events. 127/1628 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4616 event pairs, 0 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 2002. Up to 50 conditions per place. [2024-11-24 00:41:53,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 956 places, 957 transitions, 3210 flow [2024-11-24 00:41:53,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 250 transitions, 1151 flow [2024-11-24 00:41:53,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:53,358 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:53,358 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-24 00:41:53,359 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:53,359 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:53,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:53,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:53,359 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:53,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:53,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash -560194002, now seen corresponding path program 1 times [2024-11-24 00:41:53,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:53,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878181375] [2024-11-24 00:41:53,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:53,395 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 00:41:53,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:53,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878181375] [2024-11-24 00:41:53,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878181375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:53,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:53,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065674732] [2024-11-24 00:41:53,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:53,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:53,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:53,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:53,575 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 776 out of 957 [2024-11-24 00:41:53,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 250 transitions, 1151 flow. Second operand has 3 states, 3 states have (on average 777.3333333333334) internal successors, (2332), 3 states have internal predecessors, (2332), 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 00:41:53,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:53,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 776 of 957 [2024-11-24 00:41:53,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:53,976 INFO L124 PetriNetUnfolderBase]: 51/1251 cut-off events. [2024-11-24 00:41:53,976 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-24 00:41:53,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 1251 events. 51/1251 cut-off events. For 2901/2901 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3384 event pairs, 25 based on Foata normal form. 51/1197 useless extension candidates. Maximal degree in co-relation 1723. Up to 181 conditions per place. [2024-11-24 00:41:53,993 INFO L140 encePairwiseOnDemand]: 951/957 looper letters, 34 selfloop transitions, 2 changer transitions 1/246 dead transitions. [2024-11-24 00:41:53,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 246 transitions, 1215 flow [2024-11-24 00:41:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2368 transitions. [2024-11-24 00:41:53,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8247997213514455 [2024-11-24 00:41:53,996 INFO L175 Difference]: Start difference. First operand has 297 places, 250 transitions, 1151 flow. Second operand 3 states and 2368 transitions. [2024-11-24 00:41:53,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 246 transitions, 1215 flow [2024-11-24 00:41:54,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 246 transitions, 708 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:54,002 INFO L231 Difference]: Finished difference. Result has 297 places, 245 transitions, 638 flow [2024-11-24 00:41:54,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=297, PETRI_TRANSITIONS=245} [2024-11-24 00:41:54,003 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, 0 predicate places. [2024-11-24 00:41:54,003 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 245 transitions, 638 flow [2024-11-24 00:41:54,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 777.3333333333334) internal successors, (2332), 3 states have internal predecessors, (2332), 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 00:41:54,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:54,004 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:54,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-24 00:41:54,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:54,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1516232291, now seen corresponding path program 1 times [2024-11-24 00:41:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:54,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458088429] [2024-11-24 00:41:54,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:54,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:54,035 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 00:41:54,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458088429] [2024-11-24 00:41:54,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458088429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:54,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:54,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:54,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840829745] [2024-11-24 00:41:54,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:54,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:54,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:54,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:54,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:54,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 957 [2024-11-24 00:41:54,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 245 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 727.0) internal successors, (2181), 3 states have internal predecessors, (2181), 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 00:41:54,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:54,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 957 [2024-11-24 00:41:54,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:54,508 INFO L124 PetriNetUnfolderBase]: 26/1122 cut-off events. [2024-11-24 00:41:54,508 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-24 00:41:54,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 1122 events. 26/1122 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2483 event pairs, 0 based on Foata normal form. 25/1096 useless extension candidates. Maximal degree in co-relation 1358. Up to 130 conditions per place. [2024-11-24 00:41:54,517 INFO L140 encePairwiseOnDemand]: 951/957 looper letters, 32 selfloop transitions, 1 changer transitions 24/240 dead transitions. [2024-11-24 00:41:54,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 240 transitions, 698 flow [2024-11-24 00:41:54,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:54,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2218 transitions. [2024-11-24 00:41:54,520 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7725531173807035 [2024-11-24 00:41:54,520 INFO L175 Difference]: Start difference. First operand has 297 places, 245 transitions, 638 flow. Second operand 3 states and 2218 transitions. [2024-11-24 00:41:54,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 240 transitions, 698 flow [2024-11-24 00:41:54,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 240 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:54,524 INFO L231 Difference]: Finished difference. Result has 291 places, 216 transitions, 576 flow [2024-11-24 00:41:54,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=291, PETRI_TRANSITIONS=216} [2024-11-24 00:41:54,525 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, -6 predicate places. [2024-11-24 00:41:54,525 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 216 transitions, 576 flow [2024-11-24 00:41:54,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 727.0) internal successors, (2181), 3 states have internal predecessors, (2181), 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 00:41:54,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:54,526 INFO L206 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:54,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-24 00:41:54,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:54,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1040569526, now seen corresponding path program 1 times [2024-11-24 00:41:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031115832] [2024-11-24 00:41:54,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:54,657 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 00:41:54,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031115832] [2024-11-24 00:41:54,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031115832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:54,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:54,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:54,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207912811] [2024-11-24 00:41:54,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:54,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:54,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:54,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:54,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:54,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 957 [2024-11-24 00:41:54,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 216 transitions, 576 flow. Second operand has 4 states, 4 states have (on average 809.5) internal successors, (3238), 4 states have internal predecessors, (3238), 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 00:41:54,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:54,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 957 [2024-11-24 00:41:54,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:54,908 INFO L124 PetriNetUnfolderBase]: 0/521 cut-off events. [2024-11-24 00:41:54,908 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-24 00:41:54,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 521 events. 0/521 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 287 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2024-11-24 00:41:54,908 INFO L140 encePairwiseOnDemand]: 953/957 looper letters, 28 selfloop transitions, 3 changer transitions 0/215 dead transitions. [2024-11-24 00:41:54,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 215 transitions, 636 flow [2024-11-24 00:41:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3240 transitions. [2024-11-24 00:41:54,911 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8463949843260188 [2024-11-24 00:41:54,911 INFO L175 Difference]: Start difference. First operand has 291 places, 216 transitions, 576 flow. Second operand 4 states and 3240 transitions. [2024-11-24 00:41:54,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 215 transitions, 636 flow [2024-11-24 00:41:54,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 215 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:54,915 INFO L231 Difference]: Finished difference. Result has 268 places, 215 transitions, 579 flow [2024-11-24 00:41:54,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=579, PETRI_PLACES=268, PETRI_TRANSITIONS=215} [2024-11-24 00:41:54,916 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, -29 predicate places. [2024-11-24 00:41:54,916 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 215 transitions, 579 flow [2024-11-24 00:41:54,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 809.5) internal successors, (3238), 4 states have internal predecessors, (3238), 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 00:41:54,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:54,917 INFO L206 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:54,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-24 00:41:54,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:54,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1938805232, now seen corresponding path program 1 times [2024-11-24 00:41:54,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:54,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028947471] [2024-11-24 00:41:54,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:54,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:54,974 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:55,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:55,098 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:55,098 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-24 00:41:55,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-24 00:41:55,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-24 00:41:55,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-24 00:41:55,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-24 00:41:55,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-24 00:41:55,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-24 00:41:55,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-24 00:41:55,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-24 00:41:55,101 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:55,101 WARN L246 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:55,102 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-24 00:41:55,301 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:55,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 994 transitions, 3388 flow [2024-11-24 00:41:55,921 INFO L124 PetriNetUnfolderBase]: 132/1692 cut-off events. [2024-11-24 00:41:55,921 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-24 00:41:55,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2145 conditions, 1692 events. 132/1692 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4857 event pairs, 0 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 2094. Up to 52 conditions per place. [2024-11-24 00:41:55,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 993 places, 994 transitions, 3388 flow [2024-11-24 00:41:55,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 257 transitions, 1217 flow [2024-11-24 00:41:55,944 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:55,945 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:55,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-24 00:41:55,947 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:55,947 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:55,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:55,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:55,947 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:55,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-24 00:41:55,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1004260370, now seen corresponding path program 1 times [2024-11-24 00:41:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:55,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050849467] [2024-11-24 00:41:55,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:55,991 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 00:41:55,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:55,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050849467] [2024-11-24 00:41:55,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050849467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:55,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:55,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:55,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767808279] [2024-11-24 00:41:55,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:55,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:55,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:55,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:55,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:56,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 806 out of 994 [2024-11-24 00:41:56,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 257 transitions, 1217 flow. Second operand has 3 states, 3 states have (on average 807.3333333333334) internal successors, (2422), 3 states have internal predecessors, (2422), 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 00:41:56,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:56,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 806 of 994 [2024-11-24 00:41:56,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:56,498 INFO L124 PetriNetUnfolderBase]: 53/1300 cut-off events. [2024-11-24 00:41:56,498 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-24 00:41:56,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1300 events. 53/1300 cut-off events. For 3251/3251 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3509 event pairs, 26 based on Foata normal form. 53/1244 useless extension candidates. Maximal degree in co-relation 1806. Up to 188 conditions per place. [2024-11-24 00:41:56,510 INFO L140 encePairwiseOnDemand]: 988/994 looper letters, 35 selfloop transitions, 2 changer transitions 1/253 dead transitions. [2024-11-24 00:41:56,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 253 transitions, 1283 flow [2024-11-24 00:41:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2459 transitions. [2024-11-24 00:41:56,513 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8246143527833669 [2024-11-24 00:41:56,513 INFO L175 Difference]: Start difference. First operand has 306 places, 257 transitions, 1217 flow. Second operand 3 states and 2459 transitions. [2024-11-24 00:41:56,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 253 transitions, 1283 flow [2024-11-24 00:41:56,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 253 transitions, 730 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:56,525 INFO L231 Difference]: Finished difference. Result has 306 places, 252 transitions, 658 flow [2024-11-24 00:41:56,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=306, PETRI_TRANSITIONS=252} [2024-11-24 00:41:56,526 INFO L279 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2024-11-24 00:41:56,526 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 252 transitions, 658 flow [2024-11-24 00:41:56,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 807.3333333333334) internal successors, (2422), 3 states have internal predecessors, (2422), 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 00:41:56,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:56,527 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:56,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-24 00:41:56,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-24 00:41:56,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:56,527 INFO L85 PathProgramCache]: Analyzing trace with hash 835321925, now seen corresponding path program 1 times [2024-11-24 00:41:56,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:56,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733949768] [2024-11-24 00:41:56,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:56,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:56,559 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 00:41:56,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:56,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733949768] [2024-11-24 00:41:56,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733949768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:56,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:56,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:56,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045397500] [2024-11-24 00:41:56,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:56,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:56,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:56,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:56,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:56,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 994 [2024-11-24 00:41:56,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 252 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 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 00:41:56,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:56,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 994 [2024-11-24 00:41:56,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:57,018 INFO L124 PetriNetUnfolderBase]: 27/1166 cut-off events. [2024-11-24 00:41:57,018 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-24 00:41:57,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1166 events. 27/1166 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2586 event pairs, 0 based on Foata normal form. 26/1139 useless extension candidates. Maximal degree in co-relation 1412. Up to 135 conditions per place. [2024-11-24 00:41:57,027 INFO L140 encePairwiseOnDemand]: 988/994 looper letters, 33 selfloop transitions, 1 changer transitions 24/247 dead transitions. [2024-11-24 00:41:57,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 247 transitions, 720 flow [2024-11-24 00:41:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2303 transitions. [2024-11-24 00:41:57,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7723004694835681 [2024-11-24 00:41:57,030 INFO L175 Difference]: Start difference. First operand has 306 places, 252 transitions, 658 flow. Second operand 3 states and 2303 transitions. [2024-11-24 00:41:57,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 247 transitions, 720 flow [2024-11-24 00:41:57,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 247 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:57,034 INFO L231 Difference]: Finished difference. Result has 300 places, 223 transitions, 596 flow [2024-11-24 00:41:57,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=300, PETRI_TRANSITIONS=223} [2024-11-24 00:41:57,035 INFO L279 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2024-11-24 00:41:57,035 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 223 transitions, 596 flow [2024-11-24 00:41:57,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 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 00:41:57,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:57,036 INFO L206 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:57,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-24 00:41:57,037 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-24 00:41:57,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash -187040606, now seen corresponding path program 1 times [2024-11-24 00:41:57,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:57,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995882919] [2024-11-24 00:41:57,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:57,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:57,163 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 00:41:57,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:57,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995882919] [2024-11-24 00:41:57,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995882919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:57,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:57,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:57,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162025542] [2024-11-24 00:41:57,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:57,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:57,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:57,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:57,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:57,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 833 out of 994 [2024-11-24 00:41:57,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 223 transitions, 596 flow. Second operand has 4 states, 4 states have (on average 840.75) internal successors, (3363), 4 states have internal predecessors, (3363), 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 00:41:57,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:57,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 833 of 994 [2024-11-24 00:41:57,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:57,472 INFO L124 PetriNetUnfolderBase]: 0/541 cut-off events. [2024-11-24 00:41:57,473 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-24 00:41:57,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 541 events. 0/541 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 300 event pairs, 0 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2024-11-24 00:41:57,474 INFO L140 encePairwiseOnDemand]: 990/994 looper letters, 29 selfloop transitions, 3 changer transitions 0/222 dead transitions. [2024-11-24 00:41:57,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 222 transitions, 658 flow [2024-11-24 00:41:57,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:41:57,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:41:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3365 transitions. [2024-11-24 00:41:57,478 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.846327967806841 [2024-11-24 00:41:57,478 INFO L175 Difference]: Start difference. First operand has 300 places, 223 transitions, 596 flow. Second operand 4 states and 3365 transitions. [2024-11-24 00:41:57,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 222 transitions, 658 flow [2024-11-24 00:41:57,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 222 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:57,482 INFO L231 Difference]: Finished difference. Result has 277 places, 222 transitions, 599 flow [2024-11-24 00:41:57,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=599, PETRI_PLACES=277, PETRI_TRANSITIONS=222} [2024-11-24 00:41:57,483 INFO L279 CegarLoopForPetriNet]: 306 programPoint places, -29 predicate places. [2024-11-24 00:41:57,483 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 222 transitions, 599 flow [2024-11-24 00:41:57,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 840.75) internal successors, (3363), 4 states have internal predecessors, (3363), 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 00:41:57,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:57,484 INFO L206 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:57,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-24 00:41:57,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-24 00:41:57,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -82748674, now seen corresponding path program 1 times [2024-11-24 00:41:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:57,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081975191] [2024-11-24 00:41:57,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:57,542 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:41:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:41:57,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:41:57,779 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-24 00:41:57,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-24 00:41:57,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-24 00:41:57,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-24 00:41:57,781 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:41:57,782 WARN L246 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:41:57,782 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-24 00:41:57,917 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:41:57,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1030 places, 1031 transitions, 3570 flow [2024-11-24 00:41:58,389 INFO L124 PetriNetUnfolderBase]: 137/1756 cut-off events. [2024-11-24 00:41:58,389 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-24 00:41:58,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2240 conditions, 1756 events. 137/1756 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4980 event pairs, 0 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2187. Up to 54 conditions per place. [2024-11-24 00:41:58,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 1030 places, 1031 transitions, 3570 flow [2024-11-24 00:41:58,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 264 transitions, 1285 flow [2024-11-24 00:41:58,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:41:58,410 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:41:58,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-24 00:41:58,411 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:41:58,411 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:41:58,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:41:58,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:58,411 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:58,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-24 00:41:58,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:58,411 INFO L85 PathProgramCache]: Analyzing trace with hash 267821582, now seen corresponding path program 1 times [2024-11-24 00:41:58,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:58,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793108121] [2024-11-24 00:41:58,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:58,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:58,433 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 00:41:58,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:58,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793108121] [2024-11-24 00:41:58,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793108121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:58,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093994535] [2024-11-24 00:41:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:58,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:58,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:58,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:58,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:58,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 836 out of 1031 [2024-11-24 00:41:58,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 264 transitions, 1285 flow. Second operand has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 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 00:41:58,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:58,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 836 of 1031 [2024-11-24 00:41:58,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:59,015 INFO L124 PetriNetUnfolderBase]: 55/1349 cut-off events. [2024-11-24 00:41:59,016 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-24 00:41:59,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2005 conditions, 1349 events. 55/1349 cut-off events. For 3628/3628 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3512 event pairs, 27 based on Foata normal form. 28/1264 useless extension candidates. Maximal degree in co-relation 1890. Up to 195 conditions per place. [2024-11-24 00:41:59,034 INFO L140 encePairwiseOnDemand]: 1025/1031 looper letters, 36 selfloop transitions, 2 changer transitions 1/260 dead transitions. [2024-11-24 00:41:59,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 260 transitions, 1353 flow [2024-11-24 00:41:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2550 transitions. [2024-11-24 00:41:59,037 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8244422890397672 [2024-11-24 00:41:59,037 INFO L175 Difference]: Start difference. First operand has 315 places, 264 transitions, 1285 flow. Second operand 3 states and 2550 transitions. [2024-11-24 00:41:59,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 260 transitions, 1353 flow [2024-11-24 00:41:59,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 260 transitions, 752 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:59,045 INFO L231 Difference]: Finished difference. Result has 315 places, 259 transitions, 678 flow [2024-11-24 00:41:59,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=315, PETRI_TRANSITIONS=259} [2024-11-24 00:41:59,046 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, 0 predicate places. [2024-11-24 00:41:59,046 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 259 transitions, 678 flow [2024-11-24 00:41:59,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 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 00:41:59,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:59,047 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:41:59,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-24 00:41:59,047 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-24 00:41:59,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:59,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1361642164, now seen corresponding path program 1 times [2024-11-24 00:41:59,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:59,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965977670] [2024-11-24 00:41:59,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:59,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:59,074 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 00:41:59,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:59,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965977670] [2024-11-24 00:41:59,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965977670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:59,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:59,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:59,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443191731] [2024-11-24 00:41:59,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:59,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:59,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:59,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:59,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:59,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 782 out of 1031 [2024-11-24 00:41:59,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 259 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 783.0) internal successors, (2349), 3 states have internal predecessors, (2349), 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 00:41:59,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:59,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 782 of 1031 [2024-11-24 00:41:59,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:59,503 INFO L124 PetriNetUnfolderBase]: 28/1210 cut-off events. [2024-11-24 00:41:59,503 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-24 00:41:59,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 1210 events. 28/1210 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2606 event pairs, 0 based on Foata normal form. 27/1182 useless extension candidates. Maximal degree in co-relation 1466. Up to 140 conditions per place. [2024-11-24 00:41:59,514 INFO L140 encePairwiseOnDemand]: 1025/1031 looper letters, 34 selfloop transitions, 1 changer transitions 24/254 dead transitions. [2024-11-24 00:41:59,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 254 transitions, 742 flow [2024-11-24 00:41:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2388 transitions. [2024-11-24 00:41:59,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7720659553831232 [2024-11-24 00:41:59,517 INFO L175 Difference]: Start difference. First operand has 315 places, 259 transitions, 678 flow. Second operand 3 states and 2388 transitions. [2024-11-24 00:41:59,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 254 transitions, 742 flow [2024-11-24 00:41:59,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 254 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:59,521 INFO L231 Difference]: Finished difference. Result has 309 places, 230 transitions, 616 flow [2024-11-24 00:41:59,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=309, PETRI_TRANSITIONS=230} [2024-11-24 00:41:59,522 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -6 predicate places. [2024-11-24 00:41:59,522 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 230 transitions, 616 flow [2024-11-24 00:41:59,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 783.0) internal successors, (2349), 3 states have internal predecessors, (2349), 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 00:41:59,522 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:59,523 INFO L206 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:59,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-24 00:41:59,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-24 00:41:59,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash -718059209, now seen corresponding path program 1 times [2024-11-24 00:41:59,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:59,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238825730] [2024-11-24 00:41:59,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:59,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:59,735 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 00:41:59,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:59,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238825730] [2024-11-24 00:41:59,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238825730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:59,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:59,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:41:59,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124084095] [2024-11-24 00:41:59,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:59,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:41:59,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:59,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:41:59,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:41:59,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 864 out of 1031 [2024-11-24 00:41:59,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 230 transitions, 616 flow. Second operand has 4 states, 4 states have (on average 872.0) internal successors, (3488), 4 states have internal predecessors, (3488), 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 00:41:59,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:59,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 864 of 1031 [2024-11-24 00:41:59,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:00,090 INFO L124 PetriNetUnfolderBase]: 0/561 cut-off events. [2024-11-24 00:42:00,090 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-24 00:42:00,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 561 events. 0/561 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 311 event pairs, 0 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2024-11-24 00:42:00,091 INFO L140 encePairwiseOnDemand]: 1027/1031 looper letters, 30 selfloop transitions, 3 changer transitions 0/229 dead transitions. [2024-11-24 00:42:00,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 229 transitions, 680 flow [2024-11-24 00:42:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3490 transitions. [2024-11-24 00:42:00,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8462657613967022 [2024-11-24 00:42:00,096 INFO L175 Difference]: Start difference. First operand has 309 places, 230 transitions, 616 flow. Second operand 4 states and 3490 transitions. [2024-11-24 00:42:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 229 transitions, 680 flow [2024-11-24 00:42:00,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 229 transitions, 679 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:00,101 INFO L231 Difference]: Finished difference. Result has 286 places, 229 transitions, 619 flow [2024-11-24 00:42:00,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=619, PETRI_PLACES=286, PETRI_TRANSITIONS=229} [2024-11-24 00:42:00,102 INFO L279 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-11-24 00:42:00,102 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 229 transitions, 619 flow [2024-11-24 00:42:00,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 872.0) internal successors, (3488), 4 states have internal predecessors, (3488), 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 00:42:00,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:00,104 INFO L206 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:00,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-24 00:42:00,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-24 00:42:00,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:00,108 INFO L85 PathProgramCache]: Analyzing trace with hash 434817530, now seen corresponding path program 1 times [2024-11-24 00:42:00,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:00,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873539273] [2024-11-24 00:42:00,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:00,176 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:00,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:00,327 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:00,327 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-24 00:42:00,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-24 00:42:00,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-24 00:42:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-24 00:42:00,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-24 00:42:00,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-24 00:42:00,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-24 00:42:00,330 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:00,331 WARN L246 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:00,331 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-24 00:42:00,471 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:00,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1067 places, 1068 transitions, 3756 flow [2024-11-24 00:42:00,829 INFO L124 PetriNetUnfolderBase]: 142/1820 cut-off events. [2024-11-24 00:42:00,829 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-24 00:42:00,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1820 events. 142/1820 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5088 event pairs, 0 based on Foata normal form. 0/1590 useless extension candidates. Maximal degree in co-relation 2281. Up to 56 conditions per place. [2024-11-24 00:42:00,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 1067 places, 1068 transitions, 3756 flow [2024-11-24 00:42:00,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 271 transitions, 1355 flow [2024-11-24 00:42:00,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:00,850 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:00,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-24 00:42:00,852 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:00,852 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:00,852 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:00,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:00,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:00,852 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-24 00:42:00,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:00,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1038915442, now seen corresponding path program 1 times [2024-11-24 00:42:00,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:00,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821684491] [2024-11-24 00:42:00,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:00,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:00,874 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 00:42:00,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:00,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821684491] [2024-11-24 00:42:00,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821684491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:00,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333391286] [2024-11-24 00:42:00,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:00,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:00,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:00,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:00,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:01,012 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1068 [2024-11-24 00:42:01,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 271 transitions, 1355 flow. Second operand has 3 states, 3 states have (on average 867.3333333333334) internal successors, (2602), 3 states have internal predecessors, (2602), 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 00:42:01,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:01,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1068 [2024-11-24 00:42:01,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:01,348 INFO L124 PetriNetUnfolderBase]: 57/1398 cut-off events. [2024-11-24 00:42:01,348 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-24 00:42:01,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 1398 events. 57/1398 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3779 event pairs, 28 based on Foata normal form. 57/1338 useless extension candidates. Maximal degree in co-relation 1975. Up to 202 conditions per place. [2024-11-24 00:42:01,366 INFO L140 encePairwiseOnDemand]: 1062/1068 looper letters, 37 selfloop transitions, 2 changer transitions 1/267 dead transitions. [2024-11-24 00:42:01,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 267 transitions, 1425 flow [2024-11-24 00:42:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2641 transitions. [2024-11-24 00:42:01,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8242821473158551 [2024-11-24 00:42:01,369 INFO L175 Difference]: Start difference. First operand has 324 places, 271 transitions, 1355 flow. Second operand 3 states and 2641 transitions. [2024-11-24 00:42:01,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 267 transitions, 1425 flow [2024-11-24 00:42:01,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 267 transitions, 774 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:01,383 INFO L231 Difference]: Finished difference. Result has 324 places, 266 transitions, 698 flow [2024-11-24 00:42:01,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=324, PETRI_TRANSITIONS=266} [2024-11-24 00:42:01,384 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, 0 predicate places. [2024-11-24 00:42:01,384 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 266 transitions, 698 flow [2024-11-24 00:42:01,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 867.3333333333334) internal successors, (2602), 3 states have internal predecessors, (2602), 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 00:42:01,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:01,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:01,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-24 00:42:01,386 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-24 00:42:01,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash -779692680, now seen corresponding path program 1 times [2024-11-24 00:42:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:01,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505810893] [2024-11-24 00:42:01,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:01,418 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 00:42:01,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:01,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505810893] [2024-11-24 00:42:01,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505810893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:01,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:01,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14462220] [2024-11-24 00:42:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:01,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:01,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:01,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:01,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 810 out of 1068 [2024-11-24 00:42:01,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 266 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 811.0) internal successors, (2433), 3 states have internal predecessors, (2433), 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 00:42:01,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:01,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 810 of 1068 [2024-11-24 00:42:01,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:01,942 INFO L124 PetriNetUnfolderBase]: 29/1254 cut-off events. [2024-11-24 00:42:01,943 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-24 00:42:01,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1254 events. 29/1254 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2789 event pairs, 0 based on Foata normal form. 28/1225 useless extension candidates. Maximal degree in co-relation 1520. Up to 145 conditions per place. [2024-11-24 00:42:01,951 INFO L140 encePairwiseOnDemand]: 1062/1068 looper letters, 35 selfloop transitions, 1 changer transitions 24/261 dead transitions. [2024-11-24 00:42:01,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 261 transitions, 764 flow [2024-11-24 00:42:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:01,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:01,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2473 transitions. [2024-11-24 00:42:01,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7718476903870163 [2024-11-24 00:42:01,953 INFO L175 Difference]: Start difference. First operand has 324 places, 266 transitions, 698 flow. Second operand 3 states and 2473 transitions. [2024-11-24 00:42:01,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 261 transitions, 764 flow [2024-11-24 00:42:01,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 261 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:01,956 INFO L231 Difference]: Finished difference. Result has 318 places, 237 transitions, 636 flow [2024-11-24 00:42:01,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=318, PETRI_TRANSITIONS=237} [2024-11-24 00:42:01,956 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, -6 predicate places. [2024-11-24 00:42:01,956 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 237 transitions, 636 flow [2024-11-24 00:42:01,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 811.0) internal successors, (2433), 3 states have internal predecessors, (2433), 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 00:42:01,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:01,957 INFO L206 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:01,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-24 00:42:01,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-24 00:42:01,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -391079723, now seen corresponding path program 1 times [2024-11-24 00:42:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552197525] [2024-11-24 00:42:01,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:02,094 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 00:42:02,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:02,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552197525] [2024-11-24 00:42:02,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552197525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:02,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:02,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:02,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527828491] [2024-11-24 00:42:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:02,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:02,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:02,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:02,191 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 895 out of 1068 [2024-11-24 00:42:02,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 237 transitions, 636 flow. Second operand has 4 states, 4 states have (on average 903.25) internal successors, (3613), 4 states have internal predecessors, (3613), 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 00:42:02,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:02,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 895 of 1068 [2024-11-24 00:42:02,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:02,363 INFO L124 PetriNetUnfolderBase]: 0/581 cut-off events. [2024-11-24 00:42:02,363 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-24 00:42:02,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 581 events. 0/581 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 323 event pairs, 0 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2024-11-24 00:42:02,364 INFO L140 encePairwiseOnDemand]: 1064/1068 looper letters, 31 selfloop transitions, 3 changer transitions 0/236 dead transitions. [2024-11-24 00:42:02,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 236 transitions, 702 flow [2024-11-24 00:42:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3615 transitions. [2024-11-24 00:42:02,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8462078651685393 [2024-11-24 00:42:02,366 INFO L175 Difference]: Start difference. First operand has 318 places, 237 transitions, 636 flow. Second operand 4 states and 3615 transitions. [2024-11-24 00:42:02,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 236 transitions, 702 flow [2024-11-24 00:42:02,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 236 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:02,371 INFO L231 Difference]: Finished difference. Result has 295 places, 236 transitions, 639 flow [2024-11-24 00:42:02,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=295, PETRI_TRANSITIONS=236} [2024-11-24 00:42:02,371 INFO L279 CegarLoopForPetriNet]: 324 programPoint places, -29 predicate places. [2024-11-24 00:42:02,371 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 236 transitions, 639 flow [2024-11-24 00:42:02,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 903.25) internal successors, (3613), 4 states have internal predecessors, (3613), 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 00:42:02,372 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:02,372 INFO L206 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:02,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-24 00:42:02,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-24 00:42:02,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:02,376 INFO L85 PathProgramCache]: Analyzing trace with hash -126859516, now seen corresponding path program 1 times [2024-11-24 00:42:02,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:02,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427977951] [2024-11-24 00:42:02,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:02,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:02,435 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:02,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:02,587 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-24 00:42:02,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-24 00:42:02,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-24 00:42:02,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-24 00:42:02,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-24 00:42:02,590 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:02,591 WARN L246 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:02,591 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-24 00:42:02,742 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:02,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1104 places, 1105 transitions, 3946 flow [2024-11-24 00:42:03,142 INFO L124 PetriNetUnfolderBase]: 147/1884 cut-off events. [2024-11-24 00:42:03,142 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-24 00:42:03,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1884 events. 147/1884 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5237 event pairs, 0 based on Foata normal form. 0/1646 useless extension candidates. Maximal degree in co-relation 2376. Up to 58 conditions per place. [2024-11-24 00:42:03,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 1104 places, 1105 transitions, 3946 flow [2024-11-24 00:42:03,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 278 transitions, 1427 flow [2024-11-24 00:42:03,168 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:03,168 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:03,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-24 00:42:03,170 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:03,170 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:03,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:03,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:03,170 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:03,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-24 00:42:03,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash -629504146, now seen corresponding path program 1 times [2024-11-24 00:42:03,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:03,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117511050] [2024-11-24 00:42:03,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:03,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:03,199 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 00:42:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117511050] [2024-11-24 00:42:03,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117511050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:03,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:03,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:03,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505146753] [2024-11-24 00:42:03,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:03,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:03,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:03,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:03,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:03,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 896 out of 1105 [2024-11-24 00:42:03,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 278 transitions, 1427 flow. Second operand has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 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 00:42:03,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:03,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 896 of 1105 [2024-11-24 00:42:03,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:03,960 INFO L124 PetriNetUnfolderBase]: 59/1447 cut-off events. [2024-11-24 00:42:03,960 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-24 00:42:03,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 1447 events. 59/1447 cut-off events. For 4467/4467 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3922 event pairs, 29 based on Foata normal form. 59/1385 useless extension candidates. Maximal degree in co-relation 2061. Up to 209 conditions per place. [2024-11-24 00:42:03,977 INFO L140 encePairwiseOnDemand]: 1099/1105 looper letters, 38 selfloop transitions, 2 changer transitions 1/274 dead transitions. [2024-11-24 00:42:03,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 274 transitions, 1499 flow [2024-11-24 00:42:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:03,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2732 transitions. [2024-11-24 00:42:03,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8241327300150829 [2024-11-24 00:42:03,981 INFO L175 Difference]: Start difference. First operand has 333 places, 278 transitions, 1427 flow. Second operand 3 states and 2732 transitions. [2024-11-24 00:42:03,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 274 transitions, 1499 flow [2024-11-24 00:42:03,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 274 transitions, 796 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:03,999 INFO L231 Difference]: Finished difference. Result has 333 places, 273 transitions, 718 flow [2024-11-24 00:42:04,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=333, PETRI_TRANSITIONS=273} [2024-11-24 00:42:04,001 INFO L279 CegarLoopForPetriNet]: 333 programPoint places, 0 predicate places. [2024-11-24 00:42:04,001 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 273 transitions, 718 flow [2024-11-24 00:42:04,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 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 00:42:04,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:04,002 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:04,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-24 00:42:04,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-24 00:42:04,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1713796919, now seen corresponding path program 1 times [2024-11-24 00:42:04,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:04,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539923535] [2024-11-24 00:42:04,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:04,063 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 00:42:04,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:04,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539923535] [2024-11-24 00:42:04,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539923535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:04,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:04,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:04,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511976071] [2024-11-24 00:42:04,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:04,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:04,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:04,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:04,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:04,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 838 out of 1105 [2024-11-24 00:42:04,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 273 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 839.0) internal successors, (2517), 3 states have internal predecessors, (2517), 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 00:42:04,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:04,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 838 of 1105 [2024-11-24 00:42:04,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:04,666 INFO L124 PetriNetUnfolderBase]: 30/1298 cut-off events. [2024-11-24 00:42:04,666 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-24 00:42:04,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 1298 events. 30/1298 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2893 event pairs, 0 based on Foata normal form. 29/1268 useless extension candidates. Maximal degree in co-relation 1574. Up to 150 conditions per place. [2024-11-24 00:42:04,678 INFO L140 encePairwiseOnDemand]: 1099/1105 looper letters, 36 selfloop transitions, 1 changer transitions 24/268 dead transitions. [2024-11-24 00:42:04,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 268 transitions, 786 flow [2024-11-24 00:42:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2558 transitions. [2024-11-24 00:42:04,681 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7716440422322776 [2024-11-24 00:42:04,681 INFO L175 Difference]: Start difference. First operand has 333 places, 273 transitions, 718 flow. Second operand 3 states and 2558 transitions. [2024-11-24 00:42:04,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 268 transitions, 786 flow [2024-11-24 00:42:04,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 268 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:04,685 INFO L231 Difference]: Finished difference. Result has 327 places, 244 transitions, 656 flow [2024-11-24 00:42:04,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=327, PETRI_TRANSITIONS=244} [2024-11-24 00:42:04,686 INFO L279 CegarLoopForPetriNet]: 333 programPoint places, -6 predicate places. [2024-11-24 00:42:04,686 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 244 transitions, 656 flow [2024-11-24 00:42:04,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 839.0) internal successors, (2517), 3 states have internal predecessors, (2517), 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 00:42:04,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:04,687 INFO L206 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:04,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-24 00:42:04,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-24 00:42:04,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:04,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1094052316, now seen corresponding path program 1 times [2024-11-24 00:42:04,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:04,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523541369] [2024-11-24 00:42:04,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:04,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:04,856 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 00:42:04,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:04,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523541369] [2024-11-24 00:42:04,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523541369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:04,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:04,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651348513] [2024-11-24 00:42:04,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:04,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:04,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:04,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:04,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:04,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 1105 [2024-11-24 00:42:04,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 244 transitions, 656 flow. Second operand has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 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 00:42:04,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:04,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 1105 [2024-11-24 00:42:04,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:05,150 INFO L124 PetriNetUnfolderBase]: 0/601 cut-off events. [2024-11-24 00:42:05,150 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-24 00:42:05,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 601 events. 0/601 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 336 event pairs, 0 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2024-11-24 00:42:05,151 INFO L140 encePairwiseOnDemand]: 1101/1105 looper letters, 32 selfloop transitions, 3 changer transitions 0/243 dead transitions. [2024-11-24 00:42:05,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 243 transitions, 724 flow [2024-11-24 00:42:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3740 transitions. [2024-11-24 00:42:05,155 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2024-11-24 00:42:05,155 INFO L175 Difference]: Start difference. First operand has 327 places, 244 transitions, 656 flow. Second operand 4 states and 3740 transitions. [2024-11-24 00:42:05,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 243 transitions, 724 flow [2024-11-24 00:42:05,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 243 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:05,160 INFO L231 Difference]: Finished difference. Result has 304 places, 243 transitions, 659 flow [2024-11-24 00:42:05,160 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=659, PETRI_PLACES=304, PETRI_TRANSITIONS=243} [2024-11-24 00:42:05,161 INFO L279 CegarLoopForPetriNet]: 333 programPoint places, -29 predicate places. [2024-11-24 00:42:05,161 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 243 transitions, 659 flow [2024-11-24 00:42:05,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 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 00:42:05,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:05,162 INFO L206 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:05,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-24 00:42:05,163 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-24 00:42:05,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash 249756220, now seen corresponding path program 1 times [2024-11-24 00:42:05,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:05,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966751328] [2024-11-24 00:42:05,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:05,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:05,234 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:05,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:05,411 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:05,411 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-24 00:42:05,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-24 00:42:05,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-24 00:42:05,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-24 00:42:05,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-24 00:42:05,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-24 00:42:05,415 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:05,415 WARN L246 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:05,415 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-24 00:42:05,581 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:05,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1141 places, 1142 transitions, 4140 flow [2024-11-24 00:42:06,029 INFO L124 PetriNetUnfolderBase]: 152/1948 cut-off events. [2024-11-24 00:42:06,029 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-24 00:42:06,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2531 conditions, 1948 events. 152/1948 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5538 event pairs, 0 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2472. Up to 60 conditions per place. [2024-11-24 00:42:06,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 1141 places, 1142 transitions, 4140 flow [2024-11-24 00:42:06,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 342 places, 285 transitions, 1501 flow [2024-11-24 00:42:06,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:06,057 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:06,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-24 00:42:06,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:06,059 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:06,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:06,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:06,059 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:06,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 00:42:06,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1496055470, now seen corresponding path program 1 times [2024-11-24 00:42:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:06,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399070080] [2024-11-24 00:42:06,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:06,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:06,086 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 00:42:06,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:06,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399070080] [2024-11-24 00:42:06,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399070080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:06,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:06,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:06,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696532459] [2024-11-24 00:42:06,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:06,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:06,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:06,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:06,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:06,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 1142 [2024-11-24 00:42:06,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 285 transitions, 1501 flow. Second operand has 3 states, 3 states have (on average 927.3333333333334) internal successors, (2782), 3 states have internal predecessors, (2782), 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 00:42:06,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:06,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 1142 [2024-11-24 00:42:06,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:06,704 INFO L124 PetriNetUnfolderBase]: 61/1496 cut-off events. [2024-11-24 00:42:06,704 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-24 00:42:06,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1496 events. 61/1496 cut-off events. For 4931/4931 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3913 event pairs, 30 based on Foata normal form. 31/1402 useless extension candidates. Maximal degree in co-relation 2148. Up to 216 conditions per place. [2024-11-24 00:42:06,721 INFO L140 encePairwiseOnDemand]: 1136/1142 looper letters, 39 selfloop transitions, 2 changer transitions 1/281 dead transitions. [2024-11-24 00:42:06,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 281 transitions, 1575 flow [2024-11-24 00:42:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2823 transitions. [2024-11-24 00:42:06,724 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8239929947460596 [2024-11-24 00:42:06,724 INFO L175 Difference]: Start difference. First operand has 342 places, 285 transitions, 1501 flow. Second operand 3 states and 2823 transitions. [2024-11-24 00:42:06,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 281 transitions, 1575 flow [2024-11-24 00:42:06,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 281 transitions, 818 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:06,733 INFO L231 Difference]: Finished difference. Result has 342 places, 280 transitions, 738 flow [2024-11-24 00:42:06,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=342, PETRI_TRANSITIONS=280} [2024-11-24 00:42:06,734 INFO L279 CegarLoopForPetriNet]: 342 programPoint places, 0 predicate places. [2024-11-24 00:42:06,734 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 280 transitions, 738 flow [2024-11-24 00:42:06,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 927.3333333333334) internal successors, (2782), 3 states have internal predecessors, (2782), 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 00:42:06,734 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:06,735 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:06,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-24 00:42:06,735 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 00:42:06,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:06,735 INFO L85 PathProgramCache]: Analyzing trace with hash 131012415, now seen corresponding path program 1 times [2024-11-24 00:42:06,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:06,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990478630] [2024-11-24 00:42:06,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:06,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:06,767 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 00:42:06,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:06,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990478630] [2024-11-24 00:42:06,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990478630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:06,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:06,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:06,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337983132] [2024-11-24 00:42:06,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:06,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:06,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:06,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:06,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:06,871 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1142 [2024-11-24 00:42:06,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 280 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 867.0) internal successors, (2601), 3 states have internal predecessors, (2601), 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 00:42:06,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:06,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1142 [2024-11-24 00:42:06,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:07,234 INFO L124 PetriNetUnfolderBase]: 31/1342 cut-off events. [2024-11-24 00:42:07,234 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-24 00:42:07,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 1342 events. 31/1342 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2904 event pairs, 0 based on Foata normal form. 30/1311 useless extension candidates. Maximal degree in co-relation 1628. Up to 155 conditions per place. [2024-11-24 00:42:07,246 INFO L140 encePairwiseOnDemand]: 1136/1142 looper letters, 37 selfloop transitions, 1 changer transitions 24/275 dead transitions. [2024-11-24 00:42:07,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 275 transitions, 808 flow [2024-11-24 00:42:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2643 transitions. [2024-11-24 00:42:07,249 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7714535901926445 [2024-11-24 00:42:07,249 INFO L175 Difference]: Start difference. First operand has 342 places, 280 transitions, 738 flow. Second operand 3 states and 2643 transitions. [2024-11-24 00:42:07,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 275 transitions, 808 flow [2024-11-24 00:42:07,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 275 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:07,254 INFO L231 Difference]: Finished difference. Result has 336 places, 251 transitions, 676 flow [2024-11-24 00:42:07,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=336, PETRI_TRANSITIONS=251} [2024-11-24 00:42:07,254 INFO L279 CegarLoopForPetriNet]: 342 programPoint places, -6 predicate places. [2024-11-24 00:42:07,255 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 251 transitions, 676 flow [2024-11-24 00:42:07,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 867.0) internal successors, (2601), 3 states have internal predecessors, (2601), 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 00:42:07,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:07,255 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:07,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-24 00:42:07,255 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 00:42:07,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash -300131668, now seen corresponding path program 1 times [2024-11-24 00:42:07,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:07,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56271943] [2024-11-24 00:42:07,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:07,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:42:07,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56271943] [2024-11-24 00:42:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56271943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:07,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:07,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:07,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123130437] [2024-11-24 00:42:07,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:07,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:07,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:07,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:07,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:07,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 957 out of 1142 [2024-11-24 00:42:07,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 251 transitions, 676 flow. Second operand has 4 states, 4 states have (on average 965.75) internal successors, (3863), 4 states have internal predecessors, (3863), 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 00:42:07,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:07,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 957 of 1142 [2024-11-24 00:42:07,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:07,662 INFO L124 PetriNetUnfolderBase]: 0/621 cut-off events. [2024-11-24 00:42:07,662 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-24 00:42:07,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 621 events. 0/621 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 348 event pairs, 0 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2024-11-24 00:42:07,663 INFO L140 encePairwiseOnDemand]: 1138/1142 looper letters, 33 selfloop transitions, 3 changer transitions 0/250 dead transitions. [2024-11-24 00:42:07,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 250 transitions, 746 flow [2024-11-24 00:42:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3865 transitions. [2024-11-24 00:42:07,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8461033274956217 [2024-11-24 00:42:07,666 INFO L175 Difference]: Start difference. First operand has 336 places, 251 transitions, 676 flow. Second operand 4 states and 3865 transitions. [2024-11-24 00:42:07,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 250 transitions, 746 flow [2024-11-24 00:42:07,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 250 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:07,670 INFO L231 Difference]: Finished difference. Result has 313 places, 250 transitions, 679 flow [2024-11-24 00:42:07,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=679, PETRI_PLACES=313, PETRI_TRANSITIONS=250} [2024-11-24 00:42:07,670 INFO L279 CegarLoopForPetriNet]: 342 programPoint places, -29 predicate places. [2024-11-24 00:42:07,670 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 250 transitions, 679 flow [2024-11-24 00:42:07,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 965.75) internal successors, (3863), 4 states have internal predecessors, (3863), 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 00:42:07,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:07,671 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:07,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-24 00:42:07,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-24 00:42:07,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:07,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1222046782, now seen corresponding path program 1 times [2024-11-24 00:42:07,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:07,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58889868] [2024-11-24 00:42:07,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:07,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:07,744 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:07,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:07,933 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:07,933 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-24 00:42:07,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-24 00:42:07,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-24 00:42:07,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-24 00:42:07,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-24 00:42:07,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-24 00:42:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-24 00:42:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-24 00:42:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-24 00:42:07,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-24 00:42:07,937 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:07,937 WARN L246 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:07,937 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-24 00:42:08,110 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:08,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1178 places, 1179 transitions, 4338 flow [2024-11-24 00:42:08,817 INFO L124 PetriNetUnfolderBase]: 157/2012 cut-off events. [2024-11-24 00:42:08,817 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-24 00:42:08,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 2012 events. 157/2012 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5629 event pairs, 0 based on Foata normal form. 0/1758 useless extension candidates. Maximal degree in co-relation 2569. Up to 62 conditions per place. [2024-11-24 00:42:08,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 1178 places, 1179 transitions, 4338 flow [2024-11-24 00:42:08,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 292 transitions, 1577 flow [2024-11-24 00:42:08,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:08,834 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:08,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-24 00:42:08,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:08,835 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:08,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:08,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:08,835 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:08,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-24 00:42:08,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1042796110, now seen corresponding path program 1 times [2024-11-24 00:42:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:08,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839382742] [2024-11-24 00:42:08,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:08,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:08,865 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 00:42:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839382742] [2024-11-24 00:42:08,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839382742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:08,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:08,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:08,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301718535] [2024-11-24 00:42:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:08,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:08,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:08,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:08,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:09,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1179 [2024-11-24 00:42:09,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 292 transitions, 1577 flow. Second operand has 3 states, 3 states have (on average 957.3333333333334) internal successors, (2872), 3 states have internal predecessors, (2872), 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 00:42:09,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:09,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1179 [2024-11-24 00:42:09,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:09,583 INFO L124 PetriNetUnfolderBase]: 63/1545 cut-off events. [2024-11-24 00:42:09,583 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-24 00:42:09,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2359 conditions, 1545 events. 63/1545 cut-off events. For 5426/5426 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4358 event pairs, 31 based on Foata normal form. 63/1479 useless extension candidates. Maximal degree in co-relation 2236. Up to 223 conditions per place. [2024-11-24 00:42:09,603 INFO L140 encePairwiseOnDemand]: 1173/1179 looper letters, 40 selfloop transitions, 2 changer transitions 1/288 dead transitions. [2024-11-24 00:42:09,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 288 transitions, 1653 flow [2024-11-24 00:42:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2914 transitions. [2024-11-24 00:42:09,606 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8238620299689002 [2024-11-24 00:42:09,606 INFO L175 Difference]: Start difference. First operand has 351 places, 292 transitions, 1577 flow. Second operand 3 states and 2914 transitions. [2024-11-24 00:42:09,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 288 transitions, 1653 flow [2024-11-24 00:42:09,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 288 transitions, 840 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:09,620 INFO L231 Difference]: Finished difference. Result has 351 places, 287 transitions, 758 flow [2024-11-24 00:42:09,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=351, PETRI_TRANSITIONS=287} [2024-11-24 00:42:09,621 INFO L279 CegarLoopForPetriNet]: 351 programPoint places, 0 predicate places. [2024-11-24 00:42:09,621 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 287 transitions, 758 flow [2024-11-24 00:42:09,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 957.3333333333334) internal successors, (2872), 3 states have internal predecessors, (2872), 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 00:42:09,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:09,621 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:09,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-24 00:42:09,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-24 00:42:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash 459768026, now seen corresponding path program 1 times [2024-11-24 00:42:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:09,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351674544] [2024-11-24 00:42:09,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:09,659 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 00:42:09,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:09,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351674544] [2024-11-24 00:42:09,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351674544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:09,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:09,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:09,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133245224] [2024-11-24 00:42:09,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:09,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:09,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:09,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:09,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:09,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1179 [2024-11-24 00:42:09,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 287 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 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 00:42:09,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:09,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1179 [2024-11-24 00:42:09,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:10,230 INFO L124 PetriNetUnfolderBase]: 32/1386 cut-off events. [2024-11-24 00:42:10,230 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-24 00:42:10,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 1386 events. 32/1386 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3246 event pairs, 0 based on Foata normal form. 31/1354 useless extension candidates. Maximal degree in co-relation 1682. Up to 160 conditions per place. [2024-11-24 00:42:10,245 INFO L140 encePairwiseOnDemand]: 1173/1179 looper letters, 38 selfloop transitions, 1 changer transitions 24/282 dead transitions. [2024-11-24 00:42:10,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 282 transitions, 830 flow [2024-11-24 00:42:10,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2728 transitions. [2024-11-24 00:42:10,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7712750918857789 [2024-11-24 00:42:10,248 INFO L175 Difference]: Start difference. First operand has 351 places, 287 transitions, 758 flow. Second operand 3 states and 2728 transitions. [2024-11-24 00:42:10,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 282 transitions, 830 flow [2024-11-24 00:42:10,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 282 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:10,253 INFO L231 Difference]: Finished difference. Result has 345 places, 258 transitions, 696 flow [2024-11-24 00:42:10,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=345, PETRI_TRANSITIONS=258} [2024-11-24 00:42:10,253 INFO L279 CegarLoopForPetriNet]: 351 programPoint places, -6 predicate places. [2024-11-24 00:42:10,254 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 258 transitions, 696 flow [2024-11-24 00:42:10,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 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 00:42:10,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:10,254 INFO L206 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:10,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-24 00:42:10,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-24 00:42:10,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:10,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1826761125, now seen corresponding path program 1 times [2024-11-24 00:42:10,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:10,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053173355] [2024-11-24 00:42:10,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:10,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:10,375 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 00:42:10,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:10,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053173355] [2024-11-24 00:42:10,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053173355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:10,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:10,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:10,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713692709] [2024-11-24 00:42:10,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:10,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:10,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:10,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:10,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 988 out of 1179 [2024-11-24 00:42:10,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 258 transitions, 696 flow. Second operand has 4 states, 4 states have (on average 997.0) internal successors, (3988), 4 states have internal predecessors, (3988), 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 00:42:10,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:10,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 988 of 1179 [2024-11-24 00:42:10,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:10,680 INFO L124 PetriNetUnfolderBase]: 0/641 cut-off events. [2024-11-24 00:42:10,680 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-24 00:42:10,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 641 events. 0/641 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 359 event pairs, 0 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2024-11-24 00:42:10,681 INFO L140 encePairwiseOnDemand]: 1175/1179 looper letters, 34 selfloop transitions, 3 changer transitions 0/257 dead transitions. [2024-11-24 00:42:10,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 257 transitions, 768 flow [2024-11-24 00:42:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3990 transitions. [2024-11-24 00:42:10,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8460559796437659 [2024-11-24 00:42:10,684 INFO L175 Difference]: Start difference. First operand has 345 places, 258 transitions, 696 flow. Second operand 4 states and 3990 transitions. [2024-11-24 00:42:10,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 257 transitions, 768 flow [2024-11-24 00:42:10,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 257 transitions, 767 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:10,688 INFO L231 Difference]: Finished difference. Result has 322 places, 257 transitions, 699 flow [2024-11-24 00:42:10,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=699, PETRI_PLACES=322, PETRI_TRANSITIONS=257} [2024-11-24 00:42:10,689 INFO L279 CegarLoopForPetriNet]: 351 programPoint places, -29 predicate places. [2024-11-24 00:42:10,689 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 257 transitions, 699 flow [2024-11-24 00:42:10,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 997.0) internal successors, (3988), 4 states have internal predecessors, (3988), 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 00:42:10,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:10,690 INFO L206 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:10,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-24 00:42:10,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-24 00:42:10,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:10,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1526357066, now seen corresponding path program 1 times [2024-11-24 00:42:10,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:10,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410719312] [2024-11-24 00:42:10,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:10,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:10,744 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:10,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:10,944 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-24 00:42:10,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-24 00:42:10,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-24 00:42:10,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-24 00:42:10,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-24 00:42:10,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-24 00:42:10,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-24 00:42:10,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-24 00:42:10,948 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:10,948 WARN L246 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:10,948 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-24 00:42:11,132 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:11,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1215 places, 1216 transitions, 4540 flow [2024-11-24 00:42:11,902 INFO L124 PetriNetUnfolderBase]: 162/2076 cut-off events. [2024-11-24 00:42:11,902 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-24 00:42:11,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 2076 events. 162/2076 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5864 event pairs, 0 based on Foata normal form. 0/1814 useless extension candidates. Maximal degree in co-relation 2667. Up to 64 conditions per place. [2024-11-24 00:42:11,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 1215 places, 1216 transitions, 4540 flow [2024-11-24 00:42:11,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 299 transitions, 1655 flow [2024-11-24 00:42:11,933 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:11,933 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:11,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-24 00:42:11,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:11,935 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:11,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:11,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:11,935 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:11,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-24 00:42:11,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:11,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1989282226, now seen corresponding path program 1 times [2024-11-24 00:42:11,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:11,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985232670] [2024-11-24 00:42:11,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:11,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:11,966 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 00:42:11,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:11,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985232670] [2024-11-24 00:42:11,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985232670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:11,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:11,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:11,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634516491] [2024-11-24 00:42:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:11,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:11,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:11,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:11,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:12,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1216 [2024-11-24 00:42:12,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 299 transitions, 1655 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 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 00:42:12,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:12,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1216 [2024-11-24 00:42:12,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:12,638 INFO L124 PetriNetUnfolderBase]: 65/1594 cut-off events. [2024-11-24 00:42:12,638 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-24 00:42:12,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 1594 events. 65/1594 cut-off events. For 5953/5953 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4172 event pairs, 32 based on Foata normal form. 33/1494 useless extension candidates. Maximal degree in co-relation 2325. Up to 230 conditions per place. [2024-11-24 00:42:12,658 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 41 selfloop transitions, 2 changer transitions 1/295 dead transitions. [2024-11-24 00:42:12,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 295 transitions, 1733 flow [2024-11-24 00:42:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:12,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3005 transitions. [2024-11-24 00:42:12,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8237390350877193 [2024-11-24 00:42:12,660 INFO L175 Difference]: Start difference. First operand has 360 places, 299 transitions, 1655 flow. Second operand 3 states and 3005 transitions. [2024-11-24 00:42:12,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 295 transitions, 1733 flow [2024-11-24 00:42:12,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 295 transitions, 862 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:12,674 INFO L231 Difference]: Finished difference. Result has 360 places, 294 transitions, 778 flow [2024-11-24 00:42:12,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=360, PETRI_TRANSITIONS=294} [2024-11-24 00:42:12,674 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 0 predicate places. [2024-11-24 00:42:12,674 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 294 transitions, 778 flow [2024-11-24 00:42:12,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 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 00:42:12,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:12,675 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:12,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-24 00:42:12,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-24 00:42:12,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:12,675 INFO L85 PathProgramCache]: Analyzing trace with hash -727530086, now seen corresponding path program 1 times [2024-11-24 00:42:12,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:12,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745927509] [2024-11-24 00:42:12,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:12,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:12,704 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 00:42:12,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:12,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745927509] [2024-11-24 00:42:12,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745927509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:12,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:12,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303146732] [2024-11-24 00:42:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:12,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:12,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:12,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:12,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 922 out of 1216 [2024-11-24 00:42:12,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 294 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 923.0) internal successors, (2769), 3 states have internal predecessors, (2769), 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 00:42:12,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:12,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 922 of 1216 [2024-11-24 00:42:12,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:13,233 INFO L124 PetriNetUnfolderBase]: 33/1430 cut-off events. [2024-11-24 00:42:13,233 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-24 00:42:13,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 1430 events. 33/1430 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3102 event pairs, 0 based on Foata normal form. 32/1397 useless extension candidates. Maximal degree in co-relation 1736. Up to 165 conditions per place. [2024-11-24 00:42:13,247 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 39 selfloop transitions, 1 changer transitions 24/289 dead transitions. [2024-11-24 00:42:13,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 289 transitions, 852 flow [2024-11-24 00:42:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:13,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2813 transitions. [2024-11-24 00:42:13,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7711074561403509 [2024-11-24 00:42:13,250 INFO L175 Difference]: Start difference. First operand has 360 places, 294 transitions, 778 flow. Second operand 3 states and 2813 transitions. [2024-11-24 00:42:13,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 289 transitions, 852 flow [2024-11-24 00:42:13,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 289 transitions, 848 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:13,253 INFO L231 Difference]: Finished difference. Result has 354 places, 265 transitions, 716 flow [2024-11-24 00:42:13,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=354, PETRI_TRANSITIONS=265} [2024-11-24 00:42:13,254 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -6 predicate places. [2024-11-24 00:42:13,254 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 265 transitions, 716 flow [2024-11-24 00:42:13,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 923.0) internal successors, (2769), 3 states have internal predecessors, (2769), 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 00:42:13,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:13,255 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:13,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-24 00:42:13,255 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-24 00:42:13,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:13,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1252346585, now seen corresponding path program 1 times [2024-11-24 00:42:13,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:13,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414665515] [2024-11-24 00:42:13,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:13,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:13,368 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 00:42:13,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:13,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414665515] [2024-11-24 00:42:13,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414665515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:13,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:13,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:13,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747147451] [2024-11-24 00:42:13,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:13,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:13,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:13,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:13,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1216 [2024-11-24 00:42:13,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 265 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 1028.25) internal successors, (4113), 4 states have internal predecessors, (4113), 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 00:42:13,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:13,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1216 [2024-11-24 00:42:13,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:13,720 INFO L124 PetriNetUnfolderBase]: 0/661 cut-off events. [2024-11-24 00:42:13,720 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-24 00:42:13,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 661 events. 0/661 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 372 event pairs, 0 based on Foata normal form. 0/661 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2024-11-24 00:42:13,721 INFO L140 encePairwiseOnDemand]: 1212/1216 looper letters, 35 selfloop transitions, 3 changer transitions 0/264 dead transitions. [2024-11-24 00:42:13,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 264 transitions, 790 flow [2024-11-24 00:42:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4115 transitions. [2024-11-24 00:42:13,724 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8460115131578947 [2024-11-24 00:42:13,724 INFO L175 Difference]: Start difference. First operand has 354 places, 265 transitions, 716 flow. Second operand 4 states and 4115 transitions. [2024-11-24 00:42:13,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 264 transitions, 790 flow [2024-11-24 00:42:13,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 264 transitions, 789 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:13,728 INFO L231 Difference]: Finished difference. Result has 331 places, 264 transitions, 719 flow [2024-11-24 00:42:13,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=719, PETRI_PLACES=331, PETRI_TRANSITIONS=264} [2024-11-24 00:42:13,728 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-24 00:42:13,728 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 264 transitions, 719 flow [2024-11-24 00:42:13,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1028.25) internal successors, (4113), 4 states have internal predecessors, (4113), 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 00:42:13,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:13,729 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:13,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-24 00:42:13,729 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-24 00:42:13,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1529812424, now seen corresponding path program 1 times [2024-11-24 00:42:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:13,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848612827] [2024-11-24 00:42:13,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:13,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:13,783 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:14,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:14,044 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-24 00:42:14,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-24 00:42:14,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-24 00:42:14,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-24 00:42:14,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-24 00:42:14,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-24 00:42:14,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-24 00:42:14,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-24 00:42:14,048 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:14,048 WARN L246 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:14,048 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-24 00:42:14,247 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:14,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1252 places, 1253 transitions, 4746 flow [2024-11-24 00:42:14,999 INFO L124 PetriNetUnfolderBase]: 167/2140 cut-off events. [2024-11-24 00:42:14,999 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-24 00:42:15,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2831 conditions, 2140 events. 167/2140 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6103 event pairs, 0 based on Foata normal form. 0/1870 useless extension candidates. Maximal degree in co-relation 2766. Up to 66 conditions per place. [2024-11-24 00:42:15,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 1252 places, 1253 transitions, 4746 flow [2024-11-24 00:42:15,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 306 transitions, 1735 flow [2024-11-24 00:42:15,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:15,037 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:15,037 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-24 00:42:15,040 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:15,040 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:15,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:15,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:15,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:15,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-24 00:42:15,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:15,041 INFO L85 PathProgramCache]: Analyzing trace with hash 989755054, now seen corresponding path program 1 times [2024-11-24 00:42:15,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:15,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006729672] [2024-11-24 00:42:15,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:15,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:15,099 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 00:42:15,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:15,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006729672] [2024-11-24 00:42:15,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006729672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:15,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:15,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:15,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899598607] [2024-11-24 00:42:15,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:15,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:15,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:15,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:15,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:15,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1253 [2024-11-24 00:42:15,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 306 transitions, 1735 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 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 00:42:15,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:15,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1253 [2024-11-24 00:42:15,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:15,939 INFO L124 PetriNetUnfolderBase]: 67/1643 cut-off events. [2024-11-24 00:42:15,939 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-24 00:42:15,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2542 conditions, 1643 events. 67/1643 cut-off events. For 6513/6513 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4303 event pairs, 33 based on Foata normal form. 34/1540 useless extension candidates. Maximal degree in co-relation 2415. Up to 237 conditions per place. [2024-11-24 00:42:15,961 INFO L140 encePairwiseOnDemand]: 1247/1253 looper letters, 42 selfloop transitions, 2 changer transitions 1/302 dead transitions. [2024-11-24 00:42:15,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 302 transitions, 1815 flow [2024-11-24 00:42:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3096 transitions. [2024-11-24 00:42:15,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8236233040702314 [2024-11-24 00:42:15,966 INFO L175 Difference]: Start difference. First operand has 369 places, 306 transitions, 1735 flow. Second operand 3 states and 3096 transitions. [2024-11-24 00:42:15,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 302 transitions, 1815 flow [2024-11-24 00:42:15,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 302 transitions, 884 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:15,985 INFO L231 Difference]: Finished difference. Result has 369 places, 301 transitions, 798 flow [2024-11-24 00:42:15,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=369, PETRI_TRANSITIONS=301} [2024-11-24 00:42:15,985 INFO L279 CegarLoopForPetriNet]: 369 programPoint places, 0 predicate places. [2024-11-24 00:42:15,985 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 301 transitions, 798 flow [2024-11-24 00:42:15,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 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 00:42:15,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:15,986 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:15,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-24 00:42:15,986 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-24 00:42:15,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:15,987 INFO L85 PathProgramCache]: Analyzing trace with hash 864085375, now seen corresponding path program 1 times [2024-11-24 00:42:15,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:15,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283302120] [2024-11-24 00:42:15,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:15,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:16,034 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 00:42:16,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283302120] [2024-11-24 00:42:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283302120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:16,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:16,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065948464] [2024-11-24 00:42:16,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:16,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:16,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:16,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:16,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:16,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 950 out of 1253 [2024-11-24 00:42:16,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 301 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 951.0) internal successors, (2853), 3 states have internal predecessors, (2853), 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 00:42:16,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:16,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 950 of 1253 [2024-11-24 00:42:16,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:16,674 INFO L124 PetriNetUnfolderBase]: 34/1474 cut-off events. [2024-11-24 00:42:16,674 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-24 00:42:16,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1843 conditions, 1474 events. 34/1474 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3201 event pairs, 0 based on Foata normal form. 33/1440 useless extension candidates. Maximal degree in co-relation 1790. Up to 170 conditions per place. [2024-11-24 00:42:16,693 INFO L140 encePairwiseOnDemand]: 1247/1253 looper letters, 40 selfloop transitions, 1 changer transitions 24/296 dead transitions. [2024-11-24 00:42:16,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 296 transitions, 874 flow [2024-11-24 00:42:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2898 transitions. [2024-11-24 00:42:16,696 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.770949720670391 [2024-11-24 00:42:16,697 INFO L175 Difference]: Start difference. First operand has 369 places, 301 transitions, 798 flow. Second operand 3 states and 2898 transitions. [2024-11-24 00:42:16,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 296 transitions, 874 flow [2024-11-24 00:42:16,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 296 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:16,701 INFO L231 Difference]: Finished difference. Result has 363 places, 272 transitions, 736 flow [2024-11-24 00:42:16,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=363, PETRI_TRANSITIONS=272} [2024-11-24 00:42:16,701 INFO L279 CegarLoopForPetriNet]: 369 programPoint places, -6 predicate places. [2024-11-24 00:42:16,702 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 272 transitions, 736 flow [2024-11-24 00:42:16,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 951.0) internal successors, (2853), 3 states have internal predecessors, (2853), 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 00:42:16,702 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:16,702 INFO L206 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:16,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-24 00:42:16,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-24 00:42:16,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash 22969234, now seen corresponding path program 1 times [2024-11-24 00:42:16,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:16,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840592516] [2024-11-24 00:42:16,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:16,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:16,897 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 00:42:16,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:16,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840592516] [2024-11-24 00:42:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840592516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:16,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:16,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:16,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594556221] [2024-11-24 00:42:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:16,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:16,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:16,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:17,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1050 out of 1253 [2024-11-24 00:42:17,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 272 transitions, 736 flow. Second operand has 4 states, 4 states have (on average 1059.5) internal successors, (4238), 4 states have internal predecessors, (4238), 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 00:42:17,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:17,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1050 of 1253 [2024-11-24 00:42:17,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:17,279 INFO L124 PetriNetUnfolderBase]: 0/681 cut-off events. [2024-11-24 00:42:17,279 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-24 00:42:17,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 681 events. 0/681 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 384 event pairs, 0 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2024-11-24 00:42:17,281 INFO L140 encePairwiseOnDemand]: 1249/1253 looper letters, 36 selfloop transitions, 3 changer transitions 0/271 dead transitions. [2024-11-24 00:42:17,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 271 transitions, 812 flow [2024-11-24 00:42:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4240 transitions. [2024-11-24 00:42:17,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8459696727853152 [2024-11-24 00:42:17,285 INFO L175 Difference]: Start difference. First operand has 363 places, 272 transitions, 736 flow. Second operand 4 states and 4240 transitions. [2024-11-24 00:42:17,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 271 transitions, 812 flow [2024-11-24 00:42:17,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 271 transitions, 811 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:17,291 INFO L231 Difference]: Finished difference. Result has 340 places, 271 transitions, 739 flow [2024-11-24 00:42:17,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=340, PETRI_TRANSITIONS=271} [2024-11-24 00:42:17,292 INFO L279 CegarLoopForPetriNet]: 369 programPoint places, -29 predicate places. [2024-11-24 00:42:17,292 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 271 transitions, 739 flow [2024-11-24 00:42:17,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1059.5) internal successors, (4238), 4 states have internal predecessors, (4238), 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 00:42:17,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:17,293 INFO L206 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:17,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-24 00:42:17,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-24 00:42:17,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash 11536232, now seen corresponding path program 1 times [2024-11-24 00:42:17,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528050923] [2024-11-24 00:42:17,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:17,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:17,366 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:17,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:17,530 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-24 00:42:17,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-24 00:42:17,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-24 00:42:17,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-24 00:42:17,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-24 00:42:17,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-24 00:42:17,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-24 00:42:17,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-24 00:42:17,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-24 00:42:17,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-24 00:42:17,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-24 00:42:17,534 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:17,534 WARN L246 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:17,534 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-24 00:42:17,720 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:17,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1289 places, 1290 transitions, 4956 flow [2024-11-24 00:42:18,444 INFO L124 PetriNetUnfolderBase]: 172/2204 cut-off events. [2024-11-24 00:42:18,444 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-24 00:42:18,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 2204 events. 172/2204 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6254 event pairs, 0 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2866. Up to 68 conditions per place. [2024-11-24 00:42:18,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 1289 places, 1290 transitions, 4956 flow [2024-11-24 00:42:18,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 378 places, 313 transitions, 1817 flow [2024-11-24 00:42:18,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:18,483 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:18,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-24 00:42:18,484 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:18,484 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:18,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:18,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:18,484 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:18,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-24 00:42:18,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:18,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1389973358, now seen corresponding path program 1 times [2024-11-24 00:42:18,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:18,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883791906] [2024-11-24 00:42:18,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:18,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:18,520 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 00:42:18,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883791906] [2024-11-24 00:42:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883791906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:18,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:18,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:18,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579350480] [2024-11-24 00:42:18,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:18,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:18,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:18,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:18,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:18,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1046 out of 1290 [2024-11-24 00:42:18,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 313 transitions, 1817 flow. Second operand has 3 states, 3 states have (on average 1047.3333333333333) internal successors, (3142), 3 states have internal predecessors, (3142), 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 00:42:18,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:18,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1046 of 1290 [2024-11-24 00:42:18,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:19,352 INFO L124 PetriNetUnfolderBase]: 69/1692 cut-off events. [2024-11-24 00:42:19,352 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-24 00:42:19,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1692 events. 69/1692 cut-off events. For 7107/7107 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4614 event pairs, 34 based on Foata normal form. 69/1620 useless extension candidates. Maximal degree in co-relation 2506. Up to 244 conditions per place. [2024-11-24 00:42:19,377 INFO L140 encePairwiseOnDemand]: 1284/1290 looper letters, 43 selfloop transitions, 2 changer transitions 1/309 dead transitions. [2024-11-24 00:42:19,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 309 transitions, 1899 flow [2024-11-24 00:42:19,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3187 transitions. [2024-11-24 00:42:19,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8235142118863049 [2024-11-24 00:42:19,380 INFO L175 Difference]: Start difference. First operand has 378 places, 313 transitions, 1817 flow. Second operand 3 states and 3187 transitions. [2024-11-24 00:42:19,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 309 transitions, 1899 flow [2024-11-24 00:42:19,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 309 transitions, 906 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:19,398 INFO L231 Difference]: Finished difference. Result has 378 places, 308 transitions, 818 flow [2024-11-24 00:42:19,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=818, PETRI_PLACES=378, PETRI_TRANSITIONS=308} [2024-11-24 00:42:19,398 INFO L279 CegarLoopForPetriNet]: 378 programPoint places, 0 predicate places. [2024-11-24 00:42:19,398 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 308 transitions, 818 flow [2024-11-24 00:42:19,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1047.3333333333333) internal successors, (3142), 3 states have internal predecessors, (3142), 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 00:42:19,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:19,399 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:19,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-24 00:42:19,399 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-24 00:42:19,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:19,399 INFO L85 PathProgramCache]: Analyzing trace with hash 939647113, now seen corresponding path program 1 times [2024-11-24 00:42:19,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:19,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919339849] [2024-11-24 00:42:19,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:19,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:19,433 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 00:42:19,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:19,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919339849] [2024-11-24 00:42:19,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919339849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:19,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:19,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:19,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234931600] [2024-11-24 00:42:19,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:19,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:19,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:19,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:19,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:19,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 978 out of 1290 [2024-11-24 00:42:19,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 308 transitions, 818 flow. Second operand has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 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 00:42:19,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:19,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 978 of 1290 [2024-11-24 00:42:19,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:20,071 INFO L124 PetriNetUnfolderBase]: 35/1518 cut-off events. [2024-11-24 00:42:20,071 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-24 00:42:20,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1898 conditions, 1518 events. 35/1518 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3402 event pairs, 0 based on Foata normal form. 34/1483 useless extension candidates. Maximal degree in co-relation 1844. Up to 175 conditions per place. [2024-11-24 00:42:20,090 INFO L140 encePairwiseOnDemand]: 1284/1290 looper letters, 41 selfloop transitions, 1 changer transitions 24/303 dead transitions. [2024-11-24 00:42:20,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 303 transitions, 896 flow [2024-11-24 00:42:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2983 transitions. [2024-11-24 00:42:20,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708010335917312 [2024-11-24 00:42:20,093 INFO L175 Difference]: Start difference. First operand has 378 places, 308 transitions, 818 flow. Second operand 3 states and 2983 transitions. [2024-11-24 00:42:20,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 303 transitions, 896 flow [2024-11-24 00:42:20,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 303 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:20,097 INFO L231 Difference]: Finished difference. Result has 372 places, 279 transitions, 756 flow [2024-11-24 00:42:20,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=372, PETRI_TRANSITIONS=279} [2024-11-24 00:42:20,097 INFO L279 CegarLoopForPetriNet]: 378 programPoint places, -6 predicate places. [2024-11-24 00:42:20,097 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 279 transitions, 756 flow [2024-11-24 00:42:20,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 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 00:42:20,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:20,098 INFO L206 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:20,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-24 00:42:20,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-24 00:42:20,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1878727494, now seen corresponding path program 1 times [2024-11-24 00:42:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:20,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342771328] [2024-11-24 00:42:20,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:20,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:20,245 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 00:42:20,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342771328] [2024-11-24 00:42:20,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342771328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:20,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:20,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:20,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322825137] [2024-11-24 00:42:20,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:20,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:20,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:20,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:20,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:20,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1081 out of 1290 [2024-11-24 00:42:20,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 279 transitions, 756 flow. Second operand has 4 states, 4 states have (on average 1090.75) internal successors, (4363), 4 states have internal predecessors, (4363), 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 00:42:20,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:20,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1081 of 1290 [2024-11-24 00:42:20,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:20,628 INFO L124 PetriNetUnfolderBase]: 0/701 cut-off events. [2024-11-24 00:42:20,629 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-24 00:42:20,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 701 events. 0/701 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 395 event pairs, 0 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2024-11-24 00:42:20,629 INFO L140 encePairwiseOnDemand]: 1286/1290 looper letters, 37 selfloop transitions, 3 changer transitions 0/278 dead transitions. [2024-11-24 00:42:20,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 278 transitions, 834 flow [2024-11-24 00:42:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4365 transitions. [2024-11-24 00:42:20,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8459302325581395 [2024-11-24 00:42:20,632 INFO L175 Difference]: Start difference. First operand has 372 places, 279 transitions, 756 flow. Second operand 4 states and 4365 transitions. [2024-11-24 00:42:20,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 278 transitions, 834 flow [2024-11-24 00:42:20,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 278 transitions, 833 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:20,635 INFO L231 Difference]: Finished difference. Result has 349 places, 278 transitions, 759 flow [2024-11-24 00:42:20,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=759, PETRI_PLACES=349, PETRI_TRANSITIONS=278} [2024-11-24 00:42:20,636 INFO L279 CegarLoopForPetriNet]: 378 programPoint places, -29 predicate places. [2024-11-24 00:42:20,636 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 278 transitions, 759 flow [2024-11-24 00:42:20,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1090.75) internal successors, (4363), 4 states have internal predecessors, (4363), 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 00:42:20,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:20,636 INFO L206 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:20,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-24 00:42:20,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-24 00:42:20,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:20,639 INFO L85 PathProgramCache]: Analyzing trace with hash -330488986, now seen corresponding path program 1 times [2024-11-24 00:42:20,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:20,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415130513] [2024-11-24 00:42:20,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:20,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:20,688 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:20,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:20,821 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:20,821 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-24 00:42:20,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-24 00:42:20,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-24 00:42:20,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-24 00:42:20,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-24 00:42:20,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-24 00:42:20,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-24 00:42:20,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-24 00:42:20,825 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:20,825 WARN L246 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:20,825 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-24 00:42:20,985 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:20,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1326 places, 1327 transitions, 5170 flow [2024-11-24 00:42:21,588 INFO L124 PetriNetUnfolderBase]: 177/2268 cut-off events. [2024-11-24 00:42:21,588 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-24 00:42:21,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3036 conditions, 2268 events. 177/2268 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6475 event pairs, 0 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 2967. Up to 70 conditions per place. [2024-11-24 00:42:21,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 1326 places, 1327 transitions, 5170 flow [2024-11-24 00:42:21,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 387 places, 320 transitions, 1901 flow [2024-11-24 00:42:21,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:21,616 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:21,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-24 00:42:21,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:21,617 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:21,617 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:21,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:21,617 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:21,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-24 00:42:21,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash -788627314, now seen corresponding path program 1 times [2024-11-24 00:42:21,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:21,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747193242] [2024-11-24 00:42:21,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:21,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:21,648 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 00:42:21,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:21,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747193242] [2024-11-24 00:42:21,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747193242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:21,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:21,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718437671] [2024-11-24 00:42:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:21,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:21,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:21,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:21,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:21,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 1327 [2024-11-24 00:42:21,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 320 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 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 00:42:21,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:21,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 1327 [2024-11-24 00:42:21,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:22,410 INFO L124 PetriNetUnfolderBase]: 71/1741 cut-off events. [2024-11-24 00:42:22,410 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-24 00:42:22,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 1741 events. 71/1741 cut-off events. For 7736/7736 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4603 event pairs, 35 based on Foata normal form. 36/1632 useless extension candidates. Maximal degree in co-relation 2598. Up to 251 conditions per place. [2024-11-24 00:42:22,432 INFO L140 encePairwiseOnDemand]: 1321/1327 looper letters, 44 selfloop transitions, 2 changer transitions 1/316 dead transitions. [2024-11-24 00:42:22,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 316 transitions, 1985 flow [2024-11-24 00:42:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:22,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3278 transitions. [2024-11-24 00:42:22,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8234112032152725 [2024-11-24 00:42:22,435 INFO L175 Difference]: Start difference. First operand has 387 places, 320 transitions, 1901 flow. Second operand 3 states and 3278 transitions. [2024-11-24 00:42:22,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 316 transitions, 1985 flow [2024-11-24 00:42:22,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 316 transitions, 928 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:22,453 INFO L231 Difference]: Finished difference. Result has 387 places, 315 transitions, 838 flow [2024-11-24 00:42:22,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=387, PETRI_TRANSITIONS=315} [2024-11-24 00:42:22,453 INFO L279 CegarLoopForPetriNet]: 387 programPoint places, 0 predicate places. [2024-11-24 00:42:22,453 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 315 transitions, 838 flow [2024-11-24 00:42:22,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 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 00:42:22,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:22,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:22,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-24 00:42:22,455 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-24 00:42:22,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash -500844872, now seen corresponding path program 1 times [2024-11-24 00:42:22,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:22,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539374677] [2024-11-24 00:42:22,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:22,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:22,490 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 00:42:22,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:22,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539374677] [2024-11-24 00:42:22,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539374677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:22,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:22,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:22,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995682299] [2024-11-24 00:42:22,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:22,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:22,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:22,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:22,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:22,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1006 out of 1327 [2024-11-24 00:42:22,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 315 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 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 00:42:22,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:22,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1006 of 1327 [2024-11-24 00:42:22,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:23,081 INFO L124 PetriNetUnfolderBase]: 36/1562 cut-off events. [2024-11-24 00:42:23,082 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-24 00:42:23,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 1562 events. 36/1562 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3398 event pairs, 0 based on Foata normal form. 35/1526 useless extension candidates. Maximal degree in co-relation 1898. Up to 180 conditions per place. [2024-11-24 00:42:23,099 INFO L140 encePairwiseOnDemand]: 1321/1327 looper letters, 42 selfloop transitions, 1 changer transitions 24/310 dead transitions. [2024-11-24 00:42:23,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 310 transitions, 918 flow [2024-11-24 00:42:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:23,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:23,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3068 transitions. [2024-11-24 00:42:23,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7706606380306456 [2024-11-24 00:42:23,102 INFO L175 Difference]: Start difference. First operand has 387 places, 315 transitions, 838 flow. Second operand 3 states and 3068 transitions. [2024-11-24 00:42:23,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 310 transitions, 918 flow [2024-11-24 00:42:23,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 310 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:23,106 INFO L231 Difference]: Finished difference. Result has 381 places, 286 transitions, 776 flow [2024-11-24 00:42:23,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=381, PETRI_TRANSITIONS=286} [2024-11-24 00:42:23,107 INFO L279 CegarLoopForPetriNet]: 387 programPoint places, -6 predicate places. [2024-11-24 00:42:23,107 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 286 transitions, 776 flow [2024-11-24 00:42:23,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 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 00:42:23,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:23,108 INFO L206 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:23,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-24 00:42:23,108 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-24 00:42:23,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1541188957, now seen corresponding path program 1 times [2024-11-24 00:42:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:23,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074045724] [2024-11-24 00:42:23,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:23,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:23,252 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 00:42:23,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:23,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074045724] [2024-11-24 00:42:23,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074045724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:23,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:23,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:23,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035629086] [2024-11-24 00:42:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:23,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:23,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:23,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:23,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:23,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1112 out of 1327 [2024-11-24 00:42:23,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 286 transitions, 776 flow. Second operand has 4 states, 4 states have (on average 1122.0) internal successors, (4488), 4 states have internal predecessors, (4488), 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 00:42:23,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:23,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1112 of 1327 [2024-11-24 00:42:23,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:23,694 INFO L124 PetriNetUnfolderBase]: 0/721 cut-off events. [2024-11-24 00:42:23,694 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-24 00:42:23,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 721 events. 0/721 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 407 event pairs, 0 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2024-11-24 00:42:23,695 INFO L140 encePairwiseOnDemand]: 1323/1327 looper letters, 38 selfloop transitions, 3 changer transitions 0/285 dead transitions. [2024-11-24 00:42:23,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 285 transitions, 856 flow [2024-11-24 00:42:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:23,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4490 transitions. [2024-11-24 00:42:23,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8458929917106255 [2024-11-24 00:42:23,699 INFO L175 Difference]: Start difference. First operand has 381 places, 286 transitions, 776 flow. Second operand 4 states and 4490 transitions. [2024-11-24 00:42:23,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 285 transitions, 856 flow [2024-11-24 00:42:23,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 285 transitions, 855 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:23,703 INFO L231 Difference]: Finished difference. Result has 358 places, 285 transitions, 779 flow [2024-11-24 00:42:23,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=779, PETRI_PLACES=358, PETRI_TRANSITIONS=285} [2024-11-24 00:42:23,704 INFO L279 CegarLoopForPetriNet]: 387 programPoint places, -29 predicate places. [2024-11-24 00:42:23,704 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 285 transitions, 779 flow [2024-11-24 00:42:23,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1122.0) internal successors, (4488), 4 states have internal predecessors, (4488), 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 00:42:23,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:23,705 INFO L206 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:23,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-24 00:42:23,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-24 00:42:23,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1460627026, now seen corresponding path program 1 times [2024-11-24 00:42:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835442430] [2024-11-24 00:42:23,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:23,777 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:23,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:23,953 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:23,953 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-24 00:42:23,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-24 00:42:23,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-24 00:42:23,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-24 00:42:23,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-24 00:42:23,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-24 00:42:23,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-24 00:42:23,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-24 00:42:23,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-24 00:42:23,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-24 00:42:23,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-24 00:42:23,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-24 00:42:23,957 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:23,957 WARN L246 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:23,957 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-24 00:42:24,137 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:24,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1363 places, 1364 transitions, 5388 flow [2024-11-24 00:42:24,952 INFO L124 PetriNetUnfolderBase]: 182/2332 cut-off events. [2024-11-24 00:42:24,953 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-24 00:42:24,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 2332 events. 182/2332 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6706 event pairs, 0 based on Foata normal form. 0/2038 useless extension candidates. Maximal degree in co-relation 3069. Up to 72 conditions per place. [2024-11-24 00:42:24,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 1363 places, 1364 transitions, 5388 flow [2024-11-24 00:42:24,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 396 places, 327 transitions, 1987 flow [2024-11-24 00:42:24,992 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:24,992 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:24,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-24 00:42:24,994 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:24,994 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:24,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:24,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:24,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:24,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-24 00:42:24,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1251079666, now seen corresponding path program 1 times [2024-11-24 00:42:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:24,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041302792] [2024-11-24 00:42:24,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:25,054 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 00:42:25,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:25,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041302792] [2024-11-24 00:42:25,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041302792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:25,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:25,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274690370] [2024-11-24 00:42:25,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:25,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:25,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:25,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:25,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:25,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1106 out of 1364 [2024-11-24 00:42:25,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 327 transitions, 1987 flow. Second operand has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 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 00:42:25,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:25,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1106 of 1364 [2024-11-24 00:42:25,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:25,929 INFO L124 PetriNetUnfolderBase]: 73/1790 cut-off events. [2024-11-24 00:42:25,929 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-24 00:42:25,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1790 events. 73/1790 cut-off events. For 8401/8401 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4732 event pairs, 36 based on Foata normal form. 37/1678 useless extension candidates. Maximal degree in co-relation 2691. Up to 258 conditions per place. [2024-11-24 00:42:25,958 INFO L140 encePairwiseOnDemand]: 1358/1364 looper letters, 45 selfloop transitions, 2 changer transitions 1/323 dead transitions. [2024-11-24 00:42:25,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 323 transitions, 2073 flow [2024-11-24 00:42:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3369 transitions. [2024-11-24 00:42:25,961 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8233137829912024 [2024-11-24 00:42:25,961 INFO L175 Difference]: Start difference. First operand has 396 places, 327 transitions, 1987 flow. Second operand 3 states and 3369 transitions. [2024-11-24 00:42:25,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 323 transitions, 2073 flow [2024-11-24 00:42:25,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 323 transitions, 950 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:25,982 INFO L231 Difference]: Finished difference. Result has 396 places, 322 transitions, 858 flow [2024-11-24 00:42:25,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=396, PETRI_TRANSITIONS=322} [2024-11-24 00:42:25,982 INFO L279 CegarLoopForPetriNet]: 396 programPoint places, 0 predicate places. [2024-11-24 00:42:25,983 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 322 transitions, 858 flow [2024-11-24 00:42:25,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 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 00:42:25,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:25,983 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:25,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-24 00:42:25,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-24 00:42:25,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash 837576716, now seen corresponding path program 1 times [2024-11-24 00:42:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:25,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005219045] [2024-11-24 00:42:25,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:25,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:26,024 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 00:42:26,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:26,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005219045] [2024-11-24 00:42:26,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005219045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:26,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:26,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:26,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999734354] [2024-11-24 00:42:26,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:26,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:26,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:26,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:26,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:26,142 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 1364 [2024-11-24 00:42:26,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 322 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 1035.0) internal successors, (3105), 3 states have internal predecessors, (3105), 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 00:42:26,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:26,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 1364 [2024-11-24 00:42:26,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:26,745 INFO L124 PetriNetUnfolderBase]: 37/1606 cut-off events. [2024-11-24 00:42:26,745 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-24 00:42:26,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 1606 events. 37/1606 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3498 event pairs, 0 based on Foata normal form. 36/1569 useless extension candidates. Maximal degree in co-relation 1952. Up to 185 conditions per place. [2024-11-24 00:42:26,767 INFO L140 encePairwiseOnDemand]: 1358/1364 looper letters, 43 selfloop transitions, 1 changer transitions 24/317 dead transitions. [2024-11-24 00:42:26,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 317 transitions, 940 flow [2024-11-24 00:42:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3153 transitions. [2024-11-24 00:42:26,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7705278592375366 [2024-11-24 00:42:26,770 INFO L175 Difference]: Start difference. First operand has 396 places, 322 transitions, 858 flow. Second operand 3 states and 3153 transitions. [2024-11-24 00:42:26,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 317 transitions, 940 flow [2024-11-24 00:42:26,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 317 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:26,775 INFO L231 Difference]: Finished difference. Result has 390 places, 293 transitions, 796 flow [2024-11-24 00:42:26,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=796, PETRI_PLACES=390, PETRI_TRANSITIONS=293} [2024-11-24 00:42:26,776 INFO L279 CegarLoopForPetriNet]: 396 programPoint places, -6 predicate places. [2024-11-24 00:42:26,776 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 293 transitions, 796 flow [2024-11-24 00:42:26,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1035.0) internal successors, (3105), 3 states have internal predecessors, (3105), 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 00:42:26,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:26,776 INFO L206 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:26,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-24 00:42:26,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-24 00:42:26,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2128543753, now seen corresponding path program 1 times [2024-11-24 00:42:26,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:26,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068880284] [2024-11-24 00:42:26,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:26,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:26,931 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 00:42:26,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:26,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068880284] [2024-11-24 00:42:26,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068880284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:26,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:26,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:26,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502008461] [2024-11-24 00:42:26,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:26,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:26,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:26,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:26,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:27,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1143 out of 1364 [2024-11-24 00:42:27,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 293 transitions, 796 flow. Second operand has 4 states, 4 states have (on average 1153.25) internal successors, (4613), 4 states have internal predecessors, (4613), 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 00:42:27,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:27,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1143 of 1364 [2024-11-24 00:42:27,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:27,362 INFO L124 PetriNetUnfolderBase]: 0/741 cut-off events. [2024-11-24 00:42:27,362 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-24 00:42:27,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 741 events. 0/741 cut-off events. For 698/698 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 420 event pairs, 0 based on Foata normal form. 0/741 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2024-11-24 00:42:27,363 INFO L140 encePairwiseOnDemand]: 1360/1364 looper letters, 39 selfloop transitions, 3 changer transitions 0/292 dead transitions. [2024-11-24 00:42:27,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 292 transitions, 878 flow [2024-11-24 00:42:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4615 transitions. [2024-11-24 00:42:27,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.845857771260997 [2024-11-24 00:42:27,366 INFO L175 Difference]: Start difference. First operand has 390 places, 293 transitions, 796 flow. Second operand 4 states and 4615 transitions. [2024-11-24 00:42:27,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 292 transitions, 878 flow [2024-11-24 00:42:27,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 292 transitions, 877 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:27,371 INFO L231 Difference]: Finished difference. Result has 367 places, 292 transitions, 799 flow [2024-11-24 00:42:27,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=799, PETRI_PLACES=367, PETRI_TRANSITIONS=292} [2024-11-24 00:42:27,371 INFO L279 CegarLoopForPetriNet]: 396 programPoint places, -29 predicate places. [2024-11-24 00:42:27,371 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 292 transitions, 799 flow [2024-11-24 00:42:27,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1153.25) internal successors, (4613), 4 states have internal predecessors, (4613), 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 00:42:27,372 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:27,372 INFO L206 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-24 00:42:27,372 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-24 00:42:27,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2066548660, now seen corresponding path program 1 times [2024-11-24 00:42:27,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:27,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038139963] [2024-11-24 00:42:27,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:27,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:27,448 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:27,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:27,677 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-24 00:42:27,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-24 00:42:27,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-24 00:42:27,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-24 00:42:27,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-24 00:42:27,679 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:27,680 WARN L246 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:27,680 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-24 00:42:27,989 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:28,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1400 places, 1401 transitions, 5610 flow [2024-11-24 00:42:29,152 INFO L124 PetriNetUnfolderBase]: 187/2396 cut-off events. [2024-11-24 00:42:29,152 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-24 00:42:29,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3245 conditions, 2396 events. 187/2396 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6704 event pairs, 0 based on Foata normal form. 0/2094 useless extension candidates. Maximal degree in co-relation 3172. Up to 74 conditions per place. [2024-11-24 00:42:29,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 1400 places, 1401 transitions, 5610 flow [2024-11-24 00:42:29,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 405 places, 334 transitions, 2075 flow [2024-11-24 00:42:29,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:29,206 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:29,206 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-24 00:42:29,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:29,208 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:29,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:29,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:29,209 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:29,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-24 00:42:29,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:29,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2616302, now seen corresponding path program 1 times [2024-11-24 00:42:29,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:29,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665328962] [2024-11-24 00:42:29,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:29,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:29,279 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 00:42:29,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:29,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665328962] [2024-11-24 00:42:29,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665328962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:29,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:29,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:29,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127794606] [2024-11-24 00:42:29,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:29,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:29,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:29,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:29,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:29,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1136 out of 1401 [2024-11-24 00:42:29,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 334 transitions, 2075 flow. Second operand has 3 states, 3 states have (on average 1137.3333333333333) internal successors, (3412), 3 states have internal predecessors, (3412), 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 00:42:29,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:29,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1136 of 1401 [2024-11-24 00:42:29,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:30,344 INFO L124 PetriNetUnfolderBase]: 75/1839 cut-off events. [2024-11-24 00:42:30,344 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-24 00:42:30,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 1839 events. 75/1839 cut-off events. For 9103/9103 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5027 event pairs, 37 based on Foata normal form. 75/1761 useless extension candidates. Maximal degree in co-relation 2785. Up to 265 conditions per place. [2024-11-24 00:42:30,376 INFO L140 encePairwiseOnDemand]: 1395/1401 looper letters, 46 selfloop transitions, 2 changer transitions 1/330 dead transitions. [2024-11-24 00:42:30,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 330 transitions, 2163 flow [2024-11-24 00:42:30,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3460 transitions. [2024-11-24 00:42:30,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8232215084463479 [2024-11-24 00:42:30,379 INFO L175 Difference]: Start difference. First operand has 405 places, 334 transitions, 2075 flow. Second operand 3 states and 3460 transitions. [2024-11-24 00:42:30,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 330 transitions, 2163 flow [2024-11-24 00:42:30,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 330 transitions, 972 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:30,400 INFO L231 Difference]: Finished difference. Result has 405 places, 329 transitions, 878 flow [2024-11-24 00:42:30,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=405, PETRI_TRANSITIONS=329} [2024-11-24 00:42:30,401 INFO L279 CegarLoopForPetriNet]: 405 programPoint places, 0 predicate places. [2024-11-24 00:42:30,401 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 329 transitions, 878 flow [2024-11-24 00:42:30,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1137.3333333333333) internal successors, (3412), 3 states have internal predecessors, (3412), 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 00:42:30,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:30,401 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:30,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-24 00:42:30,402 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-24 00:42:30,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:30,402 INFO L85 PathProgramCache]: Analyzing trace with hash 659944581, now seen corresponding path program 1 times [2024-11-24 00:42:30,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:30,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701867912] [2024-11-24 00:42:30,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:30,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:30,446 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 00:42:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:30,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701867912] [2024-11-24 00:42:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701867912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:30,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:30,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806697510] [2024-11-24 00:42:30,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:30,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:30,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:30,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:30,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1062 out of 1401 [2024-11-24 00:42:30,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 329 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 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 00:42:30,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:30,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1062 of 1401 [2024-11-24 00:42:30,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:31,258 INFO L124 PetriNetUnfolderBase]: 38/1650 cut-off events. [2024-11-24 00:42:31,258 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-24 00:42:31,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 1650 events. 38/1650 cut-off events. For 737/737 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3708 event pairs, 0 based on Foata normal form. 37/1612 useless extension candidates. Maximal degree in co-relation 2006. Up to 190 conditions per place. [2024-11-24 00:42:31,282 INFO L140 encePairwiseOnDemand]: 1395/1401 looper letters, 44 selfloop transitions, 1 changer transitions 24/324 dead transitions. [2024-11-24 00:42:31,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 324 transitions, 962 flow [2024-11-24 00:42:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3238 transitions. [2024-11-24 00:42:31,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7704020937425649 [2024-11-24 00:42:31,285 INFO L175 Difference]: Start difference. First operand has 405 places, 329 transitions, 878 flow. Second operand 3 states and 3238 transitions. [2024-11-24 00:42:31,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 324 transitions, 962 flow [2024-11-24 00:42:31,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 324 transitions, 958 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:31,290 INFO L231 Difference]: Finished difference. Result has 399 places, 300 transitions, 816 flow [2024-11-24 00:42:31,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=399, PETRI_TRANSITIONS=300} [2024-11-24 00:42:31,290 INFO L279 CegarLoopForPetriNet]: 405 programPoint places, -6 predicate places. [2024-11-24 00:42:31,290 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 300 transitions, 816 flow [2024-11-24 00:42:31,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 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 00:42:31,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:31,291 INFO L206 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:31,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-24 00:42:31,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-24 00:42:31,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 352002520, now seen corresponding path program 1 times [2024-11-24 00:42:31,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:31,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024270002] [2024-11-24 00:42:31,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:31,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:31,495 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 00:42:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024270002] [2024-11-24 00:42:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024270002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:31,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513285825] [2024-11-24 00:42:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:31,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:31,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:31,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:31,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 1401 [2024-11-24 00:42:31,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 300 transitions, 816 flow. Second operand has 4 states, 4 states have (on average 1184.5) internal successors, (4738), 4 states have internal predecessors, (4738), 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 00:42:31,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:31,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 1401 [2024-11-24 00:42:31,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:32,006 INFO L124 PetriNetUnfolderBase]: 0/761 cut-off events. [2024-11-24 00:42:32,006 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-24 00:42:32,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 761 events. 0/761 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 432 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2024-11-24 00:42:32,008 INFO L140 encePairwiseOnDemand]: 1397/1401 looper letters, 40 selfloop transitions, 3 changer transitions 0/299 dead transitions. [2024-11-24 00:42:32,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 299 transitions, 900 flow [2024-11-24 00:42:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:32,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4740 transitions. [2024-11-24 00:42:32,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8458244111349036 [2024-11-24 00:42:32,012 INFO L175 Difference]: Start difference. First operand has 399 places, 300 transitions, 816 flow. Second operand 4 states and 4740 transitions. [2024-11-24 00:42:32,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 299 transitions, 900 flow [2024-11-24 00:42:32,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 299 transitions, 899 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:32,016 INFO L231 Difference]: Finished difference. Result has 376 places, 299 transitions, 819 flow [2024-11-24 00:42:32,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=819, PETRI_PLACES=376, PETRI_TRANSITIONS=299} [2024-11-24 00:42:32,017 INFO L279 CegarLoopForPetriNet]: 405 programPoint places, -29 predicate places. [2024-11-24 00:42:32,017 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 299 transitions, 819 flow [2024-11-24 00:42:32,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1184.5) internal successors, (4738), 4 states have internal predecessors, (4738), 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 00:42:32,018 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:32,018 INFO L206 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:32,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-24 00:42:32,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-24 00:42:32,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash -853474956, now seen corresponding path program 1 times [2024-11-24 00:42:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:32,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696141342] [2024-11-24 00:42:32,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:32,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:32,097 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:32,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:32,300 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-24 00:42:32,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-24 00:42:32,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-24 00:42:32,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-24 00:42:32,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-24 00:42:32,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-24 00:42:32,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-24 00:42:32,305 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:32,305 WARN L246 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:32,305 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-24 00:42:32,482 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:32,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1437 places, 1438 transitions, 5836 flow [2024-11-24 00:42:33,582 INFO L124 PetriNetUnfolderBase]: 192/2460 cut-off events. [2024-11-24 00:42:33,582 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-24 00:42:33,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3351 conditions, 2460 events. 192/2460 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6917 event pairs, 0 based on Foata normal form. 0/2150 useless extension candidates. Maximal degree in co-relation 3276. Up to 76 conditions per place. [2024-11-24 00:42:33,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 1437 places, 1438 transitions, 5836 flow [2024-11-24 00:42:33,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 341 transitions, 2165 flow [2024-11-24 00:42:33,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:33,616 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:33,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-24 00:42:33,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:33,618 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:33,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:33,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:33,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:33,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-24 00:42:33,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:33,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1322506706, now seen corresponding path program 1 times [2024-11-24 00:42:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:33,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216708139] [2024-11-24 00:42:33,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:33,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:33,665 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 00:42:33,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:33,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216708139] [2024-11-24 00:42:33,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216708139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:33,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:33,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497701361] [2024-11-24 00:42:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:33,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:33,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:33,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:33,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:33,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1166 out of 1438 [2024-11-24 00:42:33,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 341 transitions, 2165 flow. Second operand has 3 states, 3 states have (on average 1167.3333333333333) internal successors, (3502), 3 states have internal predecessors, (3502), 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 00:42:33,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:33,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1166 of 1438 [2024-11-24 00:42:33,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:34,571 INFO L124 PetriNetUnfolderBase]: 77/1888 cut-off events. [2024-11-24 00:42:34,572 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-24 00:42:34,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3017 conditions, 1888 events. 77/1888 cut-off events. For 9843/9843 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5187 event pairs, 38 based on Foata normal form. 77/1808 useless extension candidates. Maximal degree in co-relation 2880. Up to 272 conditions per place. [2024-11-24 00:42:34,604 INFO L140 encePairwiseOnDemand]: 1432/1438 looper letters, 47 selfloop transitions, 2 changer transitions 1/337 dead transitions. [2024-11-24 00:42:34,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 337 transitions, 2255 flow [2024-11-24 00:42:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:34,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3551 transitions. [2024-11-24 00:42:34,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8231339823829392 [2024-11-24 00:42:34,607 INFO L175 Difference]: Start difference. First operand has 414 places, 341 transitions, 2165 flow. Second operand 3 states and 3551 transitions. [2024-11-24 00:42:34,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 337 transitions, 2255 flow [2024-11-24 00:42:34,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 337 transitions, 994 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:34,630 INFO L231 Difference]: Finished difference. Result has 414 places, 336 transitions, 898 flow [2024-11-24 00:42:34,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=414, PETRI_TRANSITIONS=336} [2024-11-24 00:42:34,630 INFO L279 CegarLoopForPetriNet]: 414 programPoint places, 0 predicate places. [2024-11-24 00:42:34,630 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 336 transitions, 898 flow [2024-11-24 00:42:34,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1167.3333333333333) internal successors, (3502), 3 states have internal predecessors, (3502), 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 00:42:34,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:34,631 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:34,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-24 00:42:34,631 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-24 00:42:34,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:34,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1033741277, now seen corresponding path program 1 times [2024-11-24 00:42:34,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:34,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318990766] [2024-11-24 00:42:34,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:34,681 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 00:42:34,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:34,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318990766] [2024-11-24 00:42:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318990766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626693519] [2024-11-24 00:42:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:34,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:34,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:34,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:34,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1438 [2024-11-24 00:42:34,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 336 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 1091.0) internal successors, (3273), 3 states have internal predecessors, (3273), 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 00:42:34,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:34,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1438 [2024-11-24 00:42:34,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:35,494 INFO L124 PetriNetUnfolderBase]: 39/1694 cut-off events. [2024-11-24 00:42:35,494 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-24 00:42:35,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 1694 events. 39/1694 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3810 event pairs, 0 based on Foata normal form. 38/1655 useless extension candidates. Maximal degree in co-relation 2060. Up to 195 conditions per place. [2024-11-24 00:42:35,519 INFO L140 encePairwiseOnDemand]: 1432/1438 looper letters, 45 selfloop transitions, 1 changer transitions 24/331 dead transitions. [2024-11-24 00:42:35,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 331 transitions, 984 flow [2024-11-24 00:42:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:35,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3323 transitions. [2024-11-24 00:42:35,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7702828001854427 [2024-11-24 00:42:35,522 INFO L175 Difference]: Start difference. First operand has 414 places, 336 transitions, 898 flow. Second operand 3 states and 3323 transitions. [2024-11-24 00:42:35,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 331 transitions, 984 flow [2024-11-24 00:42:35,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 331 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:35,527 INFO L231 Difference]: Finished difference. Result has 408 places, 307 transitions, 836 flow [2024-11-24 00:42:35,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=408, PETRI_TRANSITIONS=307} [2024-11-24 00:42:35,527 INFO L279 CegarLoopForPetriNet]: 414 programPoint places, -6 predicate places. [2024-11-24 00:42:35,528 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 307 transitions, 836 flow [2024-11-24 00:42:35,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.0) internal successors, (3273), 3 states have internal predecessors, (3273), 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 00:42:35,528 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:35,528 INFO L206 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:35,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-24 00:42:35,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-24 00:42:35,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:35,532 INFO L85 PathProgramCache]: Analyzing trace with hash 3790448, now seen corresponding path program 1 times [2024-11-24 00:42:35,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:35,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548434165] [2024-11-24 00:42:35,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:35,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:35,834 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 00:42:35,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548434165] [2024-11-24 00:42:35,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548434165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:35,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:35,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:35,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730521551] [2024-11-24 00:42:35,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:35,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:35,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:35,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:35,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:35,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1438 [2024-11-24 00:42:35,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 307 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 1215.75) internal successors, (4863), 4 states have internal predecessors, (4863), 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 00:42:35,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:35,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1438 [2024-11-24 00:42:35,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:36,323 INFO L124 PetriNetUnfolderBase]: 0/781 cut-off events. [2024-11-24 00:42:36,323 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-24 00:42:36,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 781 events. 0/781 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 443 event pairs, 0 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2024-11-24 00:42:36,324 INFO L140 encePairwiseOnDemand]: 1434/1438 looper letters, 41 selfloop transitions, 3 changer transitions 0/306 dead transitions. [2024-11-24 00:42:36,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 306 transitions, 922 flow [2024-11-24 00:42:36,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4865 transitions. [2024-11-24 00:42:36,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8457927677329624 [2024-11-24 00:42:36,329 INFO L175 Difference]: Start difference. First operand has 408 places, 307 transitions, 836 flow. Second operand 4 states and 4865 transitions. [2024-11-24 00:42:36,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 306 transitions, 922 flow [2024-11-24 00:42:36,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 306 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:36,336 INFO L231 Difference]: Finished difference. Result has 385 places, 306 transitions, 839 flow [2024-11-24 00:42:36,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=839, PETRI_PLACES=385, PETRI_TRANSITIONS=306} [2024-11-24 00:42:36,336 INFO L279 CegarLoopForPetriNet]: 414 programPoint places, -29 predicate places. [2024-11-24 00:42:36,336 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 306 transitions, 839 flow [2024-11-24 00:42:36,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1215.75) internal successors, (4863), 4 states have internal predecessors, (4863), 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 00:42:36,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:36,337 INFO L206 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:36,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-24 00:42:36,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-24 00:42:36,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:36,341 INFO L85 PathProgramCache]: Analyzing trace with hash -521688598, now seen corresponding path program 1 times [2024-11-24 00:42:36,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:36,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353665983] [2024-11-24 00:42:36,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:36,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:36,422 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:36,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:36,627 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-24 00:42:36,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-24 00:42:36,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-24 00:42:36,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-24 00:42:36,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-24 00:42:36,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-24 00:42:36,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-24 00:42:36,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-24 00:42:36,630 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:36,630 WARN L246 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:36,630 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-24 00:42:36,901 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:36,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1474 places, 1475 transitions, 6066 flow [2024-11-24 00:42:38,166 INFO L124 PetriNetUnfolderBase]: 197/2524 cut-off events. [2024-11-24 00:42:38,167 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-24 00:42:38,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3458 conditions, 2524 events. 197/2524 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7270 event pairs, 0 based on Foata normal form. 0/2206 useless extension candidates. Maximal degree in co-relation 3381. Up to 78 conditions per place. [2024-11-24 00:42:38,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 1474 places, 1475 transitions, 6066 flow [2024-11-24 00:42:38,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 348 transitions, 2257 flow [2024-11-24 00:42:38,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:38,225 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:38,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-24 00:42:38,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:38,228 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:38,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:38,229 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:38,229 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:38,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-24 00:42:38,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash -931481394, now seen corresponding path program 1 times [2024-11-24 00:42:38,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:38,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447708161] [2024-11-24 00:42:38,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:38,320 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 00:42:38,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:38,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447708161] [2024-11-24 00:42:38,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447708161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:38,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:38,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:38,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760782664] [2024-11-24 00:42:38,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:38,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:38,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:38,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:38,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:38,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1196 out of 1475 [2024-11-24 00:42:38,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 348 transitions, 2257 flow. Second operand has 3 states, 3 states have (on average 1197.3333333333333) internal successors, (3592), 3 states have internal predecessors, (3592), 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 00:42:38,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:38,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1196 of 1475 [2024-11-24 00:42:38,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:39,572 INFO L124 PetriNetUnfolderBase]: 79/1937 cut-off events. [2024-11-24 00:42:39,572 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-24 00:42:39,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 1937 events. 79/1937 cut-off events. For 10622/10622 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5311 event pairs, 39 based on Foata normal form. 79/1855 useless extension candidates. Maximal degree in co-relation 2976. Up to 279 conditions per place. [2024-11-24 00:42:39,609 INFO L140 encePairwiseOnDemand]: 1469/1475 looper letters, 48 selfloop transitions, 2 changer transitions 1/344 dead transitions. [2024-11-24 00:42:39,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 344 transitions, 2349 flow [2024-11-24 00:42:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3642 transitions. [2024-11-24 00:42:39,614 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8230508474576271 [2024-11-24 00:42:39,614 INFO L175 Difference]: Start difference. First operand has 423 places, 348 transitions, 2257 flow. Second operand 3 states and 3642 transitions. [2024-11-24 00:42:39,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 344 transitions, 2349 flow [2024-11-24 00:42:39,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 344 transitions, 1016 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:39,643 INFO L231 Difference]: Finished difference. Result has 423 places, 343 transitions, 918 flow [2024-11-24 00:42:39,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=423, PETRI_TRANSITIONS=343} [2024-11-24 00:42:39,644 INFO L279 CegarLoopForPetriNet]: 423 programPoint places, 0 predicate places. [2024-11-24 00:42:39,644 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 343 transitions, 918 flow [2024-11-24 00:42:39,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1197.3333333333333) internal successors, (3592), 3 states have internal predecessors, (3592), 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 00:42:39,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:39,645 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:39,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-24 00:42:39,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-24 00:42:39,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:39,645 INFO L85 PathProgramCache]: Analyzing trace with hash 51486438, now seen corresponding path program 1 times [2024-11-24 00:42:39,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:39,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035684665] [2024-11-24 00:42:39,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:39,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:39,803 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 00:42:39,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:39,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035684665] [2024-11-24 00:42:39,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035684665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:39,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:39,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:39,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309320704] [2024-11-24 00:42:39,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:39,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:39,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:39,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:39,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:39,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1118 out of 1475 [2024-11-24 00:42:39,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 343 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 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 00:42:39,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:39,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1118 of 1475 [2024-11-24 00:42:39,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:40,626 INFO L124 PetriNetUnfolderBase]: 40/1738 cut-off events. [2024-11-24 00:42:40,627 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-24 00:42:40,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1738 events. 40/1738 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3911 event pairs, 0 based on Foata normal form. 39/1698 useless extension candidates. Maximal degree in co-relation 2114. Up to 200 conditions per place. [2024-11-24 00:42:40,651 INFO L140 encePairwiseOnDemand]: 1469/1475 looper letters, 46 selfloop transitions, 1 changer transitions 24/338 dead transitions. [2024-11-24 00:42:40,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 338 transitions, 1006 flow [2024-11-24 00:42:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3408 transitions. [2024-11-24 00:42:40,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7701694915254237 [2024-11-24 00:42:40,654 INFO L175 Difference]: Start difference. First operand has 423 places, 343 transitions, 918 flow. Second operand 3 states and 3408 transitions. [2024-11-24 00:42:40,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 338 transitions, 1006 flow [2024-11-24 00:42:40,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 338 transitions, 1002 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:40,659 INFO L231 Difference]: Finished difference. Result has 417 places, 314 transitions, 856 flow [2024-11-24 00:42:40,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=417, PETRI_TRANSITIONS=314} [2024-11-24 00:42:40,660 INFO L279 CegarLoopForPetriNet]: 423 programPoint places, -6 predicate places. [2024-11-24 00:42:40,660 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 314 transitions, 856 flow [2024-11-24 00:42:40,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 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 00:42:40,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:40,660 INFO L206 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:40,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-24 00:42:40,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-24 00:42:40,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:40,665 INFO L85 PathProgramCache]: Analyzing trace with hash 738352177, now seen corresponding path program 1 times [2024-11-24 00:42:40,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:40,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822193166] [2024-11-24 00:42:40,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:40,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:40,858 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 00:42:40,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:40,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822193166] [2024-11-24 00:42:40,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822193166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:40,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:40,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:40,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204444691] [2024-11-24 00:42:40,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:40,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:40,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:40,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:41,029 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1236 out of 1475 [2024-11-24 00:42:41,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 314 transitions, 856 flow. Second operand has 4 states, 4 states have (on average 1247.0) internal successors, (4988), 4 states have internal predecessors, (4988), 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 00:42:41,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:41,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1236 of 1475 [2024-11-24 00:42:41,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:41,467 INFO L124 PetriNetUnfolderBase]: 0/801 cut-off events. [2024-11-24 00:42:41,467 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-24 00:42:41,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 801 events. 0/801 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 455 event pairs, 0 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2024-11-24 00:42:41,469 INFO L140 encePairwiseOnDemand]: 1471/1475 looper letters, 42 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2024-11-24 00:42:41,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 313 transitions, 944 flow [2024-11-24 00:42:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:41,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4990 transitions. [2024-11-24 00:42:41,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8457627118644068 [2024-11-24 00:42:41,473 INFO L175 Difference]: Start difference. First operand has 417 places, 314 transitions, 856 flow. Second operand 4 states and 4990 transitions. [2024-11-24 00:42:41,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 313 transitions, 944 flow [2024-11-24 00:42:41,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 313 transitions, 943 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:41,481 INFO L231 Difference]: Finished difference. Result has 394 places, 313 transitions, 859 flow [2024-11-24 00:42:41,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=859, PETRI_PLACES=394, PETRI_TRANSITIONS=313} [2024-11-24 00:42:41,482 INFO L279 CegarLoopForPetriNet]: 423 programPoint places, -29 predicate places. [2024-11-24 00:42:41,482 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 313 transitions, 859 flow [2024-11-24 00:42:41,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1247.0) internal successors, (4988), 4 states have internal predecessors, (4988), 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 00:42:41,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:41,483 INFO L206 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:41,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-24 00:42:41,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-24 00:42:41,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:41,490 INFO L85 PathProgramCache]: Analyzing trace with hash -156100146, now seen corresponding path program 1 times [2024-11-24 00:42:41,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:41,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265896594] [2024-11-24 00:42:41,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:41,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:41,610 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:41,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:41,946 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-24 00:42:41,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-24 00:42:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-24 00:42:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-24 00:42:41,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-24 00:42:41,948 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:41,949 WARN L246 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:41,949 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-24 00:42:42,126 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:42,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1511 places, 1512 transitions, 6300 flow [2024-11-24 00:42:43,342 INFO L124 PetriNetUnfolderBase]: 202/2588 cut-off events. [2024-11-24 00:42:43,342 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-24 00:42:43,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 2588 events. 202/2588 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7570 event pairs, 0 based on Foata normal form. 0/2262 useless extension candidates. Maximal degree in co-relation 3487. Up to 80 conditions per place. [2024-11-24 00:42:43,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 1511 places, 1512 transitions, 6300 flow [2024-11-24 00:42:43,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 355 transitions, 2351 flow [2024-11-24 00:42:43,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:43,377 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:43,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-24 00:42:43,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:43,378 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:43,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:43,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:43,378 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:43,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-24 00:42:43,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:43,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1175692238, now seen corresponding path program 1 times [2024-11-24 00:42:43,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:43,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449516157] [2024-11-24 00:42:43,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:43,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:43,424 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 00:42:43,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:43,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449516157] [2024-11-24 00:42:43,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449516157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:43,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:43,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:43,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505371731] [2024-11-24 00:42:43,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:43,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:43,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:43,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:43,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:43,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1226 out of 1512 [2024-11-24 00:42:43,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 355 transitions, 2351 flow. Second operand has 3 states, 3 states have (on average 1227.3333333333333) internal successors, (3682), 3 states have internal predecessors, (3682), 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 00:42:43,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:43,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1226 of 1512 [2024-11-24 00:42:43,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:44,432 INFO L124 PetriNetUnfolderBase]: 81/1986 cut-off events. [2024-11-24 00:42:44,432 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-24 00:42:44,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1986 events. 81/1986 cut-off events. For 11441/11441 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5442 event pairs, 40 based on Foata normal form. 81/1902 useless extension candidates. Maximal degree in co-relation 3073. Up to 286 conditions per place. [2024-11-24 00:42:44,457 INFO L140 encePairwiseOnDemand]: 1506/1512 looper letters, 49 selfloop transitions, 2 changer transitions 1/351 dead transitions. [2024-11-24 00:42:44,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 351 transitions, 2445 flow [2024-11-24 00:42:44,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3733 transitions. [2024-11-24 00:42:44,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8229717813051146 [2024-11-24 00:42:44,459 INFO L175 Difference]: Start difference. First operand has 432 places, 355 transitions, 2351 flow. Second operand 3 states and 3733 transitions. [2024-11-24 00:42:44,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 351 transitions, 2445 flow [2024-11-24 00:42:44,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 351 transitions, 1038 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:44,483 INFO L231 Difference]: Finished difference. Result has 432 places, 350 transitions, 938 flow [2024-11-24 00:42:44,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=432, PETRI_TRANSITIONS=350} [2024-11-24 00:42:44,484 INFO L279 CegarLoopForPetriNet]: 432 programPoint places, 0 predicate places. [2024-11-24 00:42:44,484 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 350 transitions, 938 flow [2024-11-24 00:42:44,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1227.3333333333333) internal successors, (3682), 3 states have internal predecessors, (3682), 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 00:42:44,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:44,485 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:44,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-24 00:42:44,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-24 00:42:44,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -379339570, now seen corresponding path program 1 times [2024-11-24 00:42:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:44,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565917350] [2024-11-24 00:42:44,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:44,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:44,540 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 00:42:44,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:44,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565917350] [2024-11-24 00:42:44,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565917350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:44,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:44,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:44,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752041561] [2024-11-24 00:42:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:44,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:44,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:44,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:44,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:44,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1146 out of 1512 [2024-11-24 00:42:44,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 350 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 1147.0) internal successors, (3441), 3 states have internal predecessors, (3441), 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 00:42:44,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:44,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1146 of 1512 [2024-11-24 00:42:44,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:45,404 INFO L124 PetriNetUnfolderBase]: 41/1782 cut-off events. [2024-11-24 00:42:45,404 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-24 00:42:45,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1782 events. 41/1782 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4014 event pairs, 0 based on Foata normal form. 40/1741 useless extension candidates. Maximal degree in co-relation 2168. Up to 205 conditions per place. [2024-11-24 00:42:45,431 INFO L140 encePairwiseOnDemand]: 1506/1512 looper letters, 47 selfloop transitions, 1 changer transitions 24/345 dead transitions. [2024-11-24 00:42:45,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 345 transitions, 1028 flow [2024-11-24 00:42:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3493 transitions. [2024-11-24 00:42:45,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7700617283950617 [2024-11-24 00:42:45,435 INFO L175 Difference]: Start difference. First operand has 432 places, 350 transitions, 938 flow. Second operand 3 states and 3493 transitions. [2024-11-24 00:42:45,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 345 transitions, 1028 flow [2024-11-24 00:42:45,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 345 transitions, 1024 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:45,442 INFO L231 Difference]: Finished difference. Result has 426 places, 321 transitions, 876 flow [2024-11-24 00:42:45,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=426, PETRI_TRANSITIONS=321} [2024-11-24 00:42:45,443 INFO L279 CegarLoopForPetriNet]: 432 programPoint places, -6 predicate places. [2024-11-24 00:42:45,443 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 321 transitions, 876 flow [2024-11-24 00:42:45,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1147.0) internal successors, (3441), 3 states have internal predecessors, (3441), 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 00:42:45,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:45,443 INFO L206 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:45,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-24 00:42:45,443 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-24 00:42:45,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1032917371, now seen corresponding path program 1 times [2024-11-24 00:42:45,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:45,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360710166] [2024-11-24 00:42:45,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:45,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:45,649 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 00:42:45,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:45,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360710166] [2024-11-24 00:42:45,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360710166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:45,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:45,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:45,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541760726] [2024-11-24 00:42:45,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:45,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:45,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:45,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:45,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:45,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1267 out of 1512 [2024-11-24 00:42:45,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 321 transitions, 876 flow. Second operand has 4 states, 4 states have (on average 1278.25) internal successors, (5113), 4 states have internal predecessors, (5113), 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 00:42:45,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:45,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1267 of 1512 [2024-11-24 00:42:45,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:46,160 INFO L124 PetriNetUnfolderBase]: 0/821 cut-off events. [2024-11-24 00:42:46,160 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-24 00:42:46,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 821 events. 0/821 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 468 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2024-11-24 00:42:46,162 INFO L140 encePairwiseOnDemand]: 1508/1512 looper letters, 43 selfloop transitions, 3 changer transitions 0/320 dead transitions. [2024-11-24 00:42:46,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 320 transitions, 966 flow [2024-11-24 00:42:46,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5115 transitions. [2024-11-24 00:42:46,166 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.845734126984127 [2024-11-24 00:42:46,166 INFO L175 Difference]: Start difference. First operand has 426 places, 321 transitions, 876 flow. Second operand 4 states and 5115 transitions. [2024-11-24 00:42:46,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 320 transitions, 966 flow [2024-11-24 00:42:46,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 320 transitions, 965 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:46,171 INFO L231 Difference]: Finished difference. Result has 403 places, 320 transitions, 879 flow [2024-11-24 00:42:46,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=879, PETRI_PLACES=403, PETRI_TRANSITIONS=320} [2024-11-24 00:42:46,171 INFO L279 CegarLoopForPetriNet]: 432 programPoint places, -29 predicate places. [2024-11-24 00:42:46,171 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 320 transitions, 879 flow [2024-11-24 00:42:46,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1278.25) internal successors, (5113), 4 states have internal predecessors, (5113), 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 00:42:46,172 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:46,172 INFO L206 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:46,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-24 00:42:46,172 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-24 00:42:46,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1029732672, now seen corresponding path program 1 times [2024-11-24 00:42:46,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:46,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674648836] [2024-11-24 00:42:46,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:46,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:46,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:46,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:46,678 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:46,678 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-24 00:42:46,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-24 00:42:46,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-24 00:42:46,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-24 00:42:46,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-24 00:42:46,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-24 00:42:46,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-24 00:42:46,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-24 00:42:46,681 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:46,682 WARN L246 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:46,682 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-24 00:42:46,924 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:46,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1548 places, 1549 transitions, 6538 flow [2024-11-24 00:42:48,251 INFO L124 PetriNetUnfolderBase]: 207/2652 cut-off events. [2024-11-24 00:42:48,252 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-24 00:42:48,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3675 conditions, 2652 events. 207/2652 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7585 event pairs, 0 based on Foata normal form. 0/2318 useless extension candidates. Maximal degree in co-relation 3594. Up to 82 conditions per place. [2024-11-24 00:42:48,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 1548 places, 1549 transitions, 6538 flow [2024-11-24 00:42:48,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 362 transitions, 2447 flow [2024-11-24 00:42:48,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:48,311 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:48,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-24 00:42:48,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:48,313 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:48,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:48,314 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:48,314 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:48,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-24 00:42:48,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:48,314 INFO L85 PathProgramCache]: Analyzing trace with hash 704046894, now seen corresponding path program 1 times [2024-11-24 00:42:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:48,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551544249] [2024-11-24 00:42:48,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:48,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:48,403 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 00:42:48,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:48,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551544249] [2024-11-24 00:42:48,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551544249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:48,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:48,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:48,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989343411] [2024-11-24 00:42:48,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:48,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:48,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:48,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:48,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:48,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1256 out of 1549 [2024-11-24 00:42:48,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 362 transitions, 2447 flow. Second operand has 3 states, 3 states have (on average 1257.3333333333333) internal successors, (3772), 3 states have internal predecessors, (3772), 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 00:42:48,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:48,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1256 of 1549 [2024-11-24 00:42:48,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:49,763 INFO L124 PetriNetUnfolderBase]: 83/2035 cut-off events. [2024-11-24 00:42:49,763 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-24 00:42:49,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3314 conditions, 2035 events. 83/2035 cut-off events. For 12301/12301 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5394 event pairs, 41 based on Foata normal form. 42/1908 useless extension candidates. Maximal degree in co-relation 3171. Up to 293 conditions per place. [2024-11-24 00:42:49,801 INFO L140 encePairwiseOnDemand]: 1543/1549 looper letters, 50 selfloop transitions, 2 changer transitions 1/358 dead transitions. [2024-11-24 00:42:49,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 358 transitions, 2543 flow [2024-11-24 00:42:49,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3824 transitions. [2024-11-24 00:42:49,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8228964923606628 [2024-11-24 00:42:49,806 INFO L175 Difference]: Start difference. First operand has 441 places, 362 transitions, 2447 flow. Second operand 3 states and 3824 transitions. [2024-11-24 00:42:49,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 358 transitions, 2543 flow [2024-11-24 00:42:49,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 358 transitions, 1060 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:49,841 INFO L231 Difference]: Finished difference. Result has 441 places, 357 transitions, 958 flow [2024-11-24 00:42:49,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=441, PETRI_TRANSITIONS=357} [2024-11-24 00:42:49,842 INFO L279 CegarLoopForPetriNet]: 441 programPoint places, 0 predicate places. [2024-11-24 00:42:49,843 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 357 transitions, 958 flow [2024-11-24 00:42:49,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1257.3333333333333) internal successors, (3772), 3 states have internal predecessors, (3772), 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 00:42:49,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:49,844 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:49,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-24 00:42:49,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-24 00:42:49,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:49,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1968747995, now seen corresponding path program 1 times [2024-11-24 00:42:49,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:49,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728492319] [2024-11-24 00:42:49,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:49,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:49,943 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 00:42:49,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:49,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728492319] [2024-11-24 00:42:49,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728492319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:49,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:49,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:49,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539421867] [2024-11-24 00:42:49,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:49,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:49,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:49,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:49,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:50,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 1549 [2024-11-24 00:42:50,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 357 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 1175.0) internal successors, (3525), 3 states have internal predecessors, (3525), 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 00:42:50,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:50,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 1549 [2024-11-24 00:42:50,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:51,116 INFO L124 PetriNetUnfolderBase]: 42/1826 cut-off events. [2024-11-24 00:42:51,116 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-24 00:42:51,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2283 conditions, 1826 events. 42/1826 cut-off events. For 899/899 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4033 event pairs, 0 based on Foata normal form. 41/1784 useless extension candidates. Maximal degree in co-relation 2222. Up to 210 conditions per place. [2024-11-24 00:42:51,129 INFO L140 encePairwiseOnDemand]: 1543/1549 looper letters, 48 selfloop transitions, 1 changer transitions 24/352 dead transitions. [2024-11-24 00:42:51,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 352 transitions, 1050 flow [2024-11-24 00:42:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3578 transitions. [2024-11-24 00:42:51,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7699591134064988 [2024-11-24 00:42:51,132 INFO L175 Difference]: Start difference. First operand has 441 places, 357 transitions, 958 flow. Second operand 3 states and 3578 transitions. [2024-11-24 00:42:51,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 352 transitions, 1050 flow [2024-11-24 00:42:51,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 352 transitions, 1046 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:51,136 INFO L231 Difference]: Finished difference. Result has 435 places, 328 transitions, 896 flow [2024-11-24 00:42:51,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=435, PETRI_TRANSITIONS=328} [2024-11-24 00:42:51,136 INFO L279 CegarLoopForPetriNet]: 441 programPoint places, -6 predicate places. [2024-11-24 00:42:51,136 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 328 transitions, 896 flow [2024-11-24 00:42:51,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1175.0) internal successors, (3525), 3 states have internal predecessors, (3525), 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 00:42:51,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:51,137 INFO L206 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:51,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-24 00:42:51,137 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-24 00:42:51,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1213762386, now seen corresponding path program 1 times [2024-11-24 00:42:51,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:51,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008778149] [2024-11-24 00:42:51,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:51,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:51,347 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 00:42:51,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:51,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008778149] [2024-11-24 00:42:51,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008778149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:51,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:51,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:51,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199730320] [2024-11-24 00:42:51,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:51,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:51,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:51,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:51,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:51,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1298 out of 1549 [2024-11-24 00:42:51,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 328 transitions, 896 flow. Second operand has 4 states, 4 states have (on average 1309.5) internal successors, (5238), 4 states have internal predecessors, (5238), 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 00:42:51,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:51,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1298 of 1549 [2024-11-24 00:42:51,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:52,076 INFO L124 PetriNetUnfolderBase]: 0/841 cut-off events. [2024-11-24 00:42:52,076 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-24 00:42:52,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 841 events. 0/841 cut-off events. For 898/898 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 479 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2024-11-24 00:42:52,077 INFO L140 encePairwiseOnDemand]: 1545/1549 looper letters, 44 selfloop transitions, 3 changer transitions 0/327 dead transitions. [2024-11-24 00:42:52,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 327 transitions, 988 flow [2024-11-24 00:42:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5240 transitions. [2024-11-24 00:42:52,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8457069076823758 [2024-11-24 00:42:52,080 INFO L175 Difference]: Start difference. First operand has 435 places, 328 transitions, 896 flow. Second operand 4 states and 5240 transitions. [2024-11-24 00:42:52,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 327 transitions, 988 flow [2024-11-24 00:42:52,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 327 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:52,084 INFO L231 Difference]: Finished difference. Result has 412 places, 327 transitions, 899 flow [2024-11-24 00:42:52,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=899, PETRI_PLACES=412, PETRI_TRANSITIONS=327} [2024-11-24 00:42:52,084 INFO L279 CegarLoopForPetriNet]: 441 programPoint places, -29 predicate places. [2024-11-24 00:42:52,085 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 327 transitions, 899 flow [2024-11-24 00:42:52,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1309.5) internal successors, (5238), 4 states have internal predecessors, (5238), 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 00:42:52,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:52,086 INFO L206 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:52,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-24 00:42:52,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-24 00:42:52,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash -178261920, now seen corresponding path program 1 times [2024-11-24 00:42:52,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:52,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736493715] [2024-11-24 00:42:52,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:52,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:52,184 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:52,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:52,445 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:52,445 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-24 00:42:52,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-24 00:42:52,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-24 00:42:52,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-24 00:42:52,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-24 00:42:52,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-24 00:42:52,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-24 00:42:52,448 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:52,449 WARN L246 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:52,449 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-24 00:42:52,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:52,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1585 places, 1586 transitions, 6780 flow [2024-11-24 00:42:53,857 INFO L124 PetriNetUnfolderBase]: 212/2716 cut-off events. [2024-11-24 00:42:53,858 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-24 00:42:53,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3785 conditions, 2716 events. 212/2716 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7762 event pairs, 0 based on Foata normal form. 0/2374 useless extension candidates. Maximal degree in co-relation 3702. Up to 84 conditions per place. [2024-11-24 00:42:53,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 1585 places, 1586 transitions, 6780 flow [2024-11-24 00:42:53,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 450 places, 369 transitions, 2545 flow [2024-11-24 00:42:53,920 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:53,920 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:53,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-24 00:42:53,921 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:53,921 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:53,921 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:53,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:53,921 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:53,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-24 00:42:53,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:53,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1948549870, now seen corresponding path program 1 times [2024-11-24 00:42:53,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:53,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020860916] [2024-11-24 00:42:53,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:53,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:53,977 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 00:42:53,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:53,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020860916] [2024-11-24 00:42:53,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020860916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:53,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:53,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:53,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157458215] [2024-11-24 00:42:53,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:53,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:53,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:53,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:53,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:54,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1286 out of 1586 [2024-11-24 00:42:54,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 369 transitions, 2545 flow. Second operand has 3 states, 3 states have (on average 1287.3333333333333) internal successors, (3862), 3 states have internal predecessors, (3862), 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 00:42:54,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:54,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1286 of 1586 [2024-11-24 00:42:54,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:55,024 INFO L124 PetriNetUnfolderBase]: 85/2084 cut-off events. [2024-11-24 00:42:55,025 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-24 00:42:55,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 2084 events. 85/2084 cut-off events. For 13203/13203 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5711 event pairs, 42 based on Foata normal form. 85/1996 useless extension candidates. Maximal degree in co-relation 3271. Up to 300 conditions per place. [2024-11-24 00:42:55,064 INFO L140 encePairwiseOnDemand]: 1580/1586 looper letters, 51 selfloop transitions, 2 changer transitions 1/365 dead transitions. [2024-11-24 00:42:55,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 365 transitions, 2643 flow [2024-11-24 00:42:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3915 transitions. [2024-11-24 00:42:55,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8228247162673392 [2024-11-24 00:42:55,068 INFO L175 Difference]: Start difference. First operand has 450 places, 369 transitions, 2545 flow. Second operand 3 states and 3915 transitions. [2024-11-24 00:42:55,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 365 transitions, 2643 flow [2024-11-24 00:42:55,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 365 transitions, 1082 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:55,097 INFO L231 Difference]: Finished difference. Result has 450 places, 364 transitions, 978 flow [2024-11-24 00:42:55,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=978, PETRI_PLACES=450, PETRI_TRANSITIONS=364} [2024-11-24 00:42:55,097 INFO L279 CegarLoopForPetriNet]: 450 programPoint places, 0 predicate places. [2024-11-24 00:42:55,097 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 364 transitions, 978 flow [2024-11-24 00:42:55,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1287.3333333333333) internal successors, (3862), 3 states have internal predecessors, (3862), 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 00:42:55,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:55,098 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:55,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-24 00:42:55,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-24 00:42:55,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:55,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1494185459, now seen corresponding path program 1 times [2024-11-24 00:42:55,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:55,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011143323] [2024-11-24 00:42:55,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:55,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:55,153 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 00:42:55,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011143323] [2024-11-24 00:42:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011143323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:55,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:55,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:55,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461852468] [2024-11-24 00:42:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:55,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:55,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:55,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:55,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:55,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1202 out of 1586 [2024-11-24 00:42:55,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 364 transitions, 978 flow. Second operand has 3 states, 3 states have (on average 1203.0) internal successors, (3609), 3 states have internal predecessors, (3609), 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 00:42:55,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:55,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1202 of 1586 [2024-11-24 00:42:55,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:56,111 INFO L124 PetriNetUnfolderBase]: 43/1870 cut-off events. [2024-11-24 00:42:56,111 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-24 00:42:56,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 1870 events. 43/1870 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4218 event pairs, 0 based on Foata normal form. 42/1827 useless extension candidates. Maximal degree in co-relation 2276. Up to 215 conditions per place. [2024-11-24 00:42:56,141 INFO L140 encePairwiseOnDemand]: 1580/1586 looper letters, 49 selfloop transitions, 1 changer transitions 24/359 dead transitions. [2024-11-24 00:42:56,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 359 transitions, 1072 flow [2024-11-24 00:42:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:42:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:42:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3663 transitions. [2024-11-24 00:42:56,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7698612862547288 [2024-11-24 00:42:56,145 INFO L175 Difference]: Start difference. First operand has 450 places, 364 transitions, 978 flow. Second operand 3 states and 3663 transitions. [2024-11-24 00:42:56,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 359 transitions, 1072 flow [2024-11-24 00:42:56,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 359 transitions, 1068 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:42:56,150 INFO L231 Difference]: Finished difference. Result has 444 places, 335 transitions, 916 flow [2024-11-24 00:42:56,150 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=444, PETRI_TRANSITIONS=335} [2024-11-24 00:42:56,151 INFO L279 CegarLoopForPetriNet]: 450 programPoint places, -6 predicate places. [2024-11-24 00:42:56,151 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 335 transitions, 916 flow [2024-11-24 00:42:56,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1203.0) internal successors, (3609), 3 states have internal predecessors, (3609), 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 00:42:56,151 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:56,151 INFO L206 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:56,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-24 00:42:56,152 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-24 00:42:56,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:56,156 INFO L85 PathProgramCache]: Analyzing trace with hash -105110486, now seen corresponding path program 1 times [2024-11-24 00:42:56,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:56,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24364722] [2024-11-24 00:42:56,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:56,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:56,426 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 00:42:56,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:56,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24364722] [2024-11-24 00:42:56,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24364722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:56,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:56,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:42:56,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690649334] [2024-11-24 00:42:56,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:56,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:42:56,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:56,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:42:56,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:42:56,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1329 out of 1586 [2024-11-24 00:42:56,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 335 transitions, 916 flow. Second operand has 4 states, 4 states have (on average 1340.75) internal successors, (5363), 4 states have internal predecessors, (5363), 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 00:42:56,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:56,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1329 of 1586 [2024-11-24 00:42:56,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:42:56,959 INFO L124 PetriNetUnfolderBase]: 0/861 cut-off events. [2024-11-24 00:42:56,960 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-24 00:42:56,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 861 events. 0/861 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 492 event pairs, 0 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2024-11-24 00:42:56,961 INFO L140 encePairwiseOnDemand]: 1582/1586 looper letters, 45 selfloop transitions, 3 changer transitions 0/334 dead transitions. [2024-11-24 00:42:56,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 334 transitions, 1010 flow [2024-11-24 00:42:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:42:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:42:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5365 transitions. [2024-11-24 00:42:56,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8456809583858764 [2024-11-24 00:42:56,965 INFO L175 Difference]: Start difference. First operand has 444 places, 335 transitions, 916 flow. Second operand 4 states and 5365 transitions. [2024-11-24 00:42:56,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 334 transitions, 1010 flow [2024-11-24 00:42:56,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 334 transitions, 1009 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:42:56,970 INFO L231 Difference]: Finished difference. Result has 421 places, 334 transitions, 919 flow [2024-11-24 00:42:56,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=919, PETRI_PLACES=421, PETRI_TRANSITIONS=334} [2024-11-24 00:42:56,971 INFO L279 CegarLoopForPetriNet]: 450 programPoint places, -29 predicate places. [2024-11-24 00:42:56,971 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 334 transitions, 919 flow [2024-11-24 00:42:56,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1340.75) internal successors, (5363), 4 states have internal predecessors, (5363), 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 00:42:56,972 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:56,973 INFO L206 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:42:56,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-24 00:42:56,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-24 00:42:56,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:56,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1872582834, now seen corresponding path program 1 times [2024-11-24 00:42:56,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:56,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192697210] [2024-11-24 00:42:56,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:56,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:57,124 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:42:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:42:57,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:42:57,423 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-24 00:42:57,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-24 00:42:57,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-24 00:42:57,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-24 00:42:57,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-24 00:42:57,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-24 00:42:57,426 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:42:57,426 WARN L246 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:42:57,426 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-24 00:42:57,622 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:42:57,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1622 places, 1623 transitions, 7026 flow [2024-11-24 00:42:58,894 INFO L124 PetriNetUnfolderBase]: 217/2780 cut-off events. [2024-11-24 00:42:58,895 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-24 00:42:58,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3896 conditions, 2780 events. 217/2780 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7898 event pairs, 0 based on Foata normal form. 0/2430 useless extension candidates. Maximal degree in co-relation 3811. Up to 86 conditions per place. [2024-11-24 00:42:58,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 1622 places, 1623 transitions, 7026 flow [2024-11-24 00:42:58,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 376 transitions, 2645 flow [2024-11-24 00:42:58,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:42:58,963 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:42:58,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-24 00:42:58,964 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:42:58,964 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:42:58,964 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:42:58,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:42:58,964 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:42:58,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-24 00:42:58,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:42:58,965 INFO L85 PathProgramCache]: Analyzing trace with hash 614233870, now seen corresponding path program 1 times [2024-11-24 00:42:58,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:42:58,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182938266] [2024-11-24 00:42:58,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:42:58,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:42:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:42:59,021 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 00:42:59,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:42:59,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182938266] [2024-11-24 00:42:59,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182938266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:42:59,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:42:59,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:42:59,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227311604] [2024-11-24 00:42:59,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:42:59,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:42:59,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:42:59,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:42:59,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:42:59,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1316 out of 1623 [2024-11-24 00:42:59,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 376 transitions, 2645 flow. Second operand has 3 states, 3 states have (on average 1317.3333333333333) internal successors, (3952), 3 states have internal predecessors, (3952), 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 00:42:59,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:42:59,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1316 of 1623 [2024-11-24 00:42:59,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:00,033 INFO L124 PetriNetUnfolderBase]: 87/2133 cut-off events. [2024-11-24 00:43:00,033 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-24 00:43:00,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3517 conditions, 2133 events. 87/2133 cut-off events. For 14148/14148 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5652 event pairs, 43 based on Foata normal form. 44/2000 useless extension candidates. Maximal degree in co-relation 3372. Up to 307 conditions per place. [2024-11-24 00:43:00,067 INFO L140 encePairwiseOnDemand]: 1617/1623 looper letters, 52 selfloop transitions, 2 changer transitions 1/372 dead transitions. [2024-11-24 00:43:00,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 372 transitions, 2745 flow [2024-11-24 00:43:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4006 transitions. [2024-11-24 00:43:00,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822756212774697 [2024-11-24 00:43:00,070 INFO L175 Difference]: Start difference. First operand has 459 places, 376 transitions, 2645 flow. Second operand 3 states and 4006 transitions. [2024-11-24 00:43:00,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 372 transitions, 2745 flow [2024-11-24 00:43:00,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 372 transitions, 1104 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:00,097 INFO L231 Difference]: Finished difference. Result has 459 places, 371 transitions, 998 flow [2024-11-24 00:43:00,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=998, PETRI_PLACES=459, PETRI_TRANSITIONS=371} [2024-11-24 00:43:00,097 INFO L279 CegarLoopForPetriNet]: 459 programPoint places, 0 predicate places. [2024-11-24 00:43:00,097 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 371 transitions, 998 flow [2024-11-24 00:43:00,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1317.3333333333333) internal successors, (3952), 3 states have internal predecessors, (3952), 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 00:43:00,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:00,098 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:00,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-24 00:43:00,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-24 00:43:00,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2116761956, now seen corresponding path program 1 times [2024-11-24 00:43:00,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:00,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825269640] [2024-11-24 00:43:00,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:00,150 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 00:43:00,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:00,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825269640] [2024-11-24 00:43:00,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825269640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:00,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:00,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:00,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13823840] [2024-11-24 00:43:00,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:00,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:00,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:00,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:00,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:00,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1230 out of 1623 [2024-11-24 00:43:00,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 371 transitions, 998 flow. Second operand has 3 states, 3 states have (on average 1231.0) internal successors, (3693), 3 states have internal predecessors, (3693), 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 00:43:00,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:00,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1230 of 1623 [2024-11-24 00:43:00,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:01,043 INFO L124 PetriNetUnfolderBase]: 44/1914 cut-off events. [2024-11-24 00:43:01,043 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-24 00:43:01,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 1914 events. 44/1914 cut-off events. For 986/986 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4191 event pairs, 0 based on Foata normal form. 43/1870 useless extension candidates. Maximal degree in co-relation 2330. Up to 220 conditions per place. [2024-11-24 00:43:01,068 INFO L140 encePairwiseOnDemand]: 1617/1623 looper letters, 50 selfloop transitions, 1 changer transitions 24/366 dead transitions. [2024-11-24 00:43:01,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 366 transitions, 1094 flow [2024-11-24 00:43:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:01,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3748 transitions. [2024-11-24 00:43:01,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7697679194906552 [2024-11-24 00:43:01,071 INFO L175 Difference]: Start difference. First operand has 459 places, 371 transitions, 998 flow. Second operand 3 states and 3748 transitions. [2024-11-24 00:43:01,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 366 transitions, 1094 flow [2024-11-24 00:43:01,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 366 transitions, 1090 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:01,075 INFO L231 Difference]: Finished difference. Result has 453 places, 342 transitions, 936 flow [2024-11-24 00:43:01,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=453, PETRI_TRANSITIONS=342} [2024-11-24 00:43:01,076 INFO L279 CegarLoopForPetriNet]: 459 programPoint places, -6 predicate places. [2024-11-24 00:43:01,076 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 342 transitions, 936 flow [2024-11-24 00:43:01,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1231.0) internal successors, (3693), 3 states have internal predecessors, (3693), 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 00:43:01,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:01,077 INFO L206 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:01,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-24 00:43:01,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-24 00:43:01,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash 984276559, now seen corresponding path program 1 times [2024-11-24 00:43:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:01,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902340130] [2024-11-24 00:43:01,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:01,236 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 00:43:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902340130] [2024-11-24 00:43:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902340130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:01,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:01,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:01,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707174198] [2024-11-24 00:43:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:01,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:01,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:01,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:01,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1360 out of 1623 [2024-11-24 00:43:01,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 342 transitions, 936 flow. Second operand has 4 states, 4 states have (on average 1372.0) internal successors, (5488), 4 states have internal predecessors, (5488), 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 00:43:01,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:01,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1360 of 1623 [2024-11-24 00:43:01,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:01,791 INFO L124 PetriNetUnfolderBase]: 0/881 cut-off events. [2024-11-24 00:43:01,791 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-24 00:43:01,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 881 events. 0/881 cut-off events. For 985/985 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 504 event pairs, 0 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2024-11-24 00:43:01,792 INFO L140 encePairwiseOnDemand]: 1619/1623 looper letters, 46 selfloop transitions, 3 changer transitions 0/341 dead transitions. [2024-11-24 00:43:01,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 341 transitions, 1032 flow [2024-11-24 00:43:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:01,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:01,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5490 transitions. [2024-11-24 00:43:01,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8456561922365989 [2024-11-24 00:43:01,795 INFO L175 Difference]: Start difference. First operand has 453 places, 342 transitions, 936 flow. Second operand 4 states and 5490 transitions. [2024-11-24 00:43:01,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 341 transitions, 1032 flow [2024-11-24 00:43:01,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 341 transitions, 1031 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:01,799 INFO L231 Difference]: Finished difference. Result has 430 places, 341 transitions, 939 flow [2024-11-24 00:43:01,800 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=430, PETRI_TRANSITIONS=341} [2024-11-24 00:43:01,800 INFO L279 CegarLoopForPetriNet]: 459 programPoint places, -29 predicate places. [2024-11-24 00:43:01,800 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 341 transitions, 939 flow [2024-11-24 00:43:01,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1372.0) internal successors, (5488), 4 states have internal predecessors, (5488), 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 00:43:01,801 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:01,801 INFO L206 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:01,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-24 00:43:01,801 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-24 00:43:01,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash 932693546, now seen corresponding path program 1 times [2024-11-24 00:43:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276107229] [2024-11-24 00:43:01,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:01,891 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:02,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:02,141 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:02,141 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-24 00:43:02,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-24 00:43:02,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-24 00:43:02,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-24 00:43:02,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-24 00:43:02,143 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:02,143 WARN L246 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:02,143 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-24 00:43:02,317 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:02,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1659 places, 1660 transitions, 7276 flow [2024-11-24 00:43:03,241 INFO L124 PetriNetUnfolderBase]: 222/2844 cut-off events. [2024-11-24 00:43:03,241 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-24 00:43:03,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4008 conditions, 2844 events. 222/2844 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8146 event pairs, 0 based on Foata normal form. 0/2486 useless extension candidates. Maximal degree in co-relation 3921. Up to 88 conditions per place. [2024-11-24 00:43:03,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 1659 places, 1660 transitions, 7276 flow [2024-11-24 00:43:03,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 383 transitions, 2747 flow [2024-11-24 00:43:03,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:03,300 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:03,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-24 00:43:03,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:03,301 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:03,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:03,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:03,302 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:03,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-24 00:43:03,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash 996066190, now seen corresponding path program 1 times [2024-11-24 00:43:03,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:03,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549638552] [2024-11-24 00:43:03,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:03,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:03,353 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 00:43:03,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:03,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549638552] [2024-11-24 00:43:03,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549638552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:03,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:03,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:03,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984728238] [2024-11-24 00:43:03,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:03,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:03,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:03,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:03,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:03,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1346 out of 1660 [2024-11-24 00:43:03,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 383 transitions, 2747 flow. Second operand has 3 states, 3 states have (on average 1347.3333333333333) internal successors, (4042), 3 states have internal predecessors, (4042), 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 00:43:03,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:03,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1346 of 1660 [2024-11-24 00:43:03,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:04,450 INFO L124 PetriNetUnfolderBase]: 89/2182 cut-off events. [2024-11-24 00:43:04,451 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-24 00:43:04,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3620 conditions, 2182 events. 89/2182 cut-off events. For 15137/15137 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6027 event pairs, 44 based on Foata normal form. 89/2090 useless extension candidates. Maximal degree in co-relation 3474. Up to 314 conditions per place. [2024-11-24 00:43:04,475 INFO L140 encePairwiseOnDemand]: 1654/1660 looper letters, 53 selfloop transitions, 2 changer transitions 1/379 dead transitions. [2024-11-24 00:43:04,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 379 transitions, 2849 flow [2024-11-24 00:43:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4097 transitions. [2024-11-24 00:43:04,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8226907630522088 [2024-11-24 00:43:04,477 INFO L175 Difference]: Start difference. First operand has 468 places, 383 transitions, 2747 flow. Second operand 3 states and 4097 transitions. [2024-11-24 00:43:04,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 379 transitions, 2849 flow [2024-11-24 00:43:04,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 379 transitions, 1126 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:04,504 INFO L231 Difference]: Finished difference. Result has 468 places, 378 transitions, 1018 flow [2024-11-24 00:43:04,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1018, PETRI_PLACES=468, PETRI_TRANSITIONS=378} [2024-11-24 00:43:04,504 INFO L279 CegarLoopForPetriNet]: 468 programPoint places, 0 predicate places. [2024-11-24 00:43:04,504 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 378 transitions, 1018 flow [2024-11-24 00:43:04,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1347.3333333333333) internal successors, (4042), 3 states have internal predecessors, (4042), 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 00:43:04,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:04,505 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:04,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-24 00:43:04,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-24 00:43:04,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:04,505 INFO L85 PathProgramCache]: Analyzing trace with hash -83311648, now seen corresponding path program 1 times [2024-11-24 00:43:04,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:04,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939487023] [2024-11-24 00:43:04,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:04,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:04,555 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 00:43:04,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939487023] [2024-11-24 00:43:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939487023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:04,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:04,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013349523] [2024-11-24 00:43:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:04,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:04,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:04,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:04,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:04,676 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1258 out of 1660 [2024-11-24 00:43:04,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 378 transitions, 1018 flow. Second operand has 3 states, 3 states have (on average 1259.0) internal successors, (3777), 3 states have internal predecessors, (3777), 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 00:43:04,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:04,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1258 of 1660 [2024-11-24 00:43:04,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:05,463 INFO L124 PetriNetUnfolderBase]: 45/1958 cut-off events. [2024-11-24 00:43:05,463 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-11-24 00:43:05,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 1958 events. 45/1958 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4421 event pairs, 0 based on Foata normal form. 44/1913 useless extension candidates. Maximal degree in co-relation 2384. Up to 225 conditions per place. [2024-11-24 00:43:05,480 INFO L140 encePairwiseOnDemand]: 1654/1660 looper letters, 51 selfloop transitions, 1 changer transitions 24/373 dead transitions. [2024-11-24 00:43:05,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 373 transitions, 1116 flow [2024-11-24 00:43:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-24 00:43:05,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7696787148594377 [2024-11-24 00:43:05,483 INFO L175 Difference]: Start difference. First operand has 468 places, 378 transitions, 1018 flow. Second operand 3 states and 3833 transitions. [2024-11-24 00:43:05,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 373 transitions, 1116 flow [2024-11-24 00:43:05,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 373 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:05,488 INFO L231 Difference]: Finished difference. Result has 462 places, 349 transitions, 956 flow [2024-11-24 00:43:05,489 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=462, PETRI_TRANSITIONS=349} [2024-11-24 00:43:05,489 INFO L279 CegarLoopForPetriNet]: 468 programPoint places, -6 predicate places. [2024-11-24 00:43:05,489 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 349 transitions, 956 flow [2024-11-24 00:43:05,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1259.0) internal successors, (3777), 3 states have internal predecessors, (3777), 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 00:43:05,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:05,490 INFO L206 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:05,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-24 00:43:05,490 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-24 00:43:05,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1629191811, now seen corresponding path program 1 times [2024-11-24 00:43:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390909560] [2024-11-24 00:43:05,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:05,732 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 00:43:05,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:05,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390909560] [2024-11-24 00:43:05,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390909560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:05,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:05,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:05,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235323922] [2024-11-24 00:43:05,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:05,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:05,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:05,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:05,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:05,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1391 out of 1660 [2024-11-24 00:43:05,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 349 transitions, 956 flow. Second operand has 4 states, 4 states have (on average 1403.25) internal successors, (5613), 4 states have internal predecessors, (5613), 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 00:43:05,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:05,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1391 of 1660 [2024-11-24 00:43:05,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:06,229 INFO L124 PetriNetUnfolderBase]: 0/901 cut-off events. [2024-11-24 00:43:06,229 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-11-24 00:43:06,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 901 events. 0/901 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 515 event pairs, 0 based on Foata normal form. 0/901 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2024-11-24 00:43:06,230 INFO L140 encePairwiseOnDemand]: 1656/1660 looper letters, 47 selfloop transitions, 3 changer transitions 0/348 dead transitions. [2024-11-24 00:43:06,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 348 transitions, 1054 flow [2024-11-24 00:43:06,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:06,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5615 transitions. [2024-11-24 00:43:06,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8456325301204819 [2024-11-24 00:43:06,234 INFO L175 Difference]: Start difference. First operand has 462 places, 349 transitions, 956 flow. Second operand 4 states and 5615 transitions. [2024-11-24 00:43:06,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 348 transitions, 1054 flow [2024-11-24 00:43:06,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 348 transitions, 1053 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:06,239 INFO L231 Difference]: Finished difference. Result has 439 places, 348 transitions, 959 flow [2024-11-24 00:43:06,239 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=959, PETRI_PLACES=439, PETRI_TRANSITIONS=348} [2024-11-24 00:43:06,239 INFO L279 CegarLoopForPetriNet]: 468 programPoint places, -29 predicate places. [2024-11-24 00:43:06,239 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 348 transitions, 959 flow [2024-11-24 00:43:06,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1403.25) internal successors, (5613), 4 states have internal predecessors, (5613), 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 00:43:06,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:06,240 INFO L206 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:06,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-24 00:43:06,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-24 00:43:06,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:06,244 INFO L85 PathProgramCache]: Analyzing trace with hash 409171220, now seen corresponding path program 1 times [2024-11-24 00:43:06,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:06,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544546656] [2024-11-24 00:43:06,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:06,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:06,335 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:06,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:06,601 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:06,601 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-24 00:43:06,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-24 00:43:06,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-24 00:43:06,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-24 00:43:06,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-24 00:43:06,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-24 00:43:06,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-24 00:43:06,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-24 00:43:06,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-11-24 00:43:06,604 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:06,605 WARN L246 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:06,605 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-11-24 00:43:06,795 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:06,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1696 places, 1697 transitions, 7530 flow [2024-11-24 00:43:07,702 INFO L124 PetriNetUnfolderBase]: 227/2908 cut-off events. [2024-11-24 00:43:07,702 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2024-11-24 00:43:07,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2908 events. 227/2908 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8291 event pairs, 0 based on Foata normal form. 0/2542 useless extension candidates. Maximal degree in co-relation 4032. Up to 90 conditions per place. [2024-11-24 00:43:07,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 1696 places, 1697 transitions, 7530 flow [2024-11-24 00:43:07,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 477 places, 390 transitions, 2851 flow [2024-11-24 00:43:07,764 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:07,764 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:07,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-24 00:43:07,765 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:07,765 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:07,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:07,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:07,766 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:07,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-24 00:43:07,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:07,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1200920466, now seen corresponding path program 1 times [2024-11-24 00:43:07,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:07,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653842007] [2024-11-24 00:43:07,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:07,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:07,817 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 00:43:07,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:07,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653842007] [2024-11-24 00:43:07,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653842007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:07,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:07,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:07,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650102682] [2024-11-24 00:43:07,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:07,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:07,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:07,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:07,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:07,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1376 out of 1697 [2024-11-24 00:43:07,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 390 transitions, 2851 flow. Second operand has 3 states, 3 states have (on average 1377.3333333333333) internal successors, (4132), 3 states have internal predecessors, (4132), 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 00:43:07,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:07,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1376 of 1697 [2024-11-24 00:43:07,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:08,844 INFO L124 PetriNetUnfolderBase]: 91/2231 cut-off events. [2024-11-24 00:43:08,844 INFO L125 PetriNetUnfolderBase]: For 16171/16171 co-relation queries the response was YES. [2024-11-24 00:43:08,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 2231 events. 91/2231 cut-off events. For 16171/16171 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5919 event pairs, 45 based on Foata normal form. 46/2092 useless extension candidates. Maximal degree in co-relation 3577. Up to 321 conditions per place. [2024-11-24 00:43:08,891 INFO L140 encePairwiseOnDemand]: 1691/1697 looper letters, 54 selfloop transitions, 2 changer transitions 1/386 dead transitions. [2024-11-24 00:43:08,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 386 transitions, 2955 flow [2024-11-24 00:43:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:08,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4188 transitions. [2024-11-24 00:43:08,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8226281673541543 [2024-11-24 00:43:08,894 INFO L175 Difference]: Start difference. First operand has 477 places, 390 transitions, 2851 flow. Second operand 3 states and 4188 transitions. [2024-11-24 00:43:08,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 386 transitions, 2955 flow [2024-11-24 00:43:08,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 386 transitions, 1148 flow, removed 903 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:08,948 INFO L231 Difference]: Finished difference. Result has 477 places, 385 transitions, 1038 flow [2024-11-24 00:43:08,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1038, PETRI_PLACES=477, PETRI_TRANSITIONS=385} [2024-11-24 00:43:08,948 INFO L279 CegarLoopForPetriNet]: 477 programPoint places, 0 predicate places. [2024-11-24 00:43:08,948 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 385 transitions, 1038 flow [2024-11-24 00:43:08,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1377.3333333333333) internal successors, (4132), 3 states have internal predecessors, (4132), 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 00:43:08,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:08,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:08,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-24 00:43:08,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-24 00:43:08,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:08,949 INFO L85 PathProgramCache]: Analyzing trace with hash 495528321, now seen corresponding path program 1 times [2024-11-24 00:43:08,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:08,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318658102] [2024-11-24 00:43:08,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:08,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:08,998 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 00:43:08,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:08,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318658102] [2024-11-24 00:43:08,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318658102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:08,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:08,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:08,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831744663] [2024-11-24 00:43:08,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:08,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:08,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:08,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:08,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:09,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1286 out of 1697 [2024-11-24 00:43:09,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 385 transitions, 1038 flow. Second operand has 3 states, 3 states have (on average 1287.0) internal successors, (3861), 3 states have internal predecessors, (3861), 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 00:43:09,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:09,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1286 of 1697 [2024-11-24 00:43:09,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:10,057 INFO L124 PetriNetUnfolderBase]: 46/2002 cut-off events. [2024-11-24 00:43:10,057 INFO L125 PetriNetUnfolderBase]: For 1077/1077 co-relation queries the response was YES. [2024-11-24 00:43:10,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 2002 events. 46/2002 cut-off events. For 1077/1077 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4388 event pairs, 0 based on Foata normal form. 45/1956 useless extension candidates. Maximal degree in co-relation 2438. Up to 230 conditions per place. [2024-11-24 00:43:10,089 INFO L140 encePairwiseOnDemand]: 1691/1697 looper letters, 52 selfloop transitions, 1 changer transitions 24/380 dead transitions. [2024-11-24 00:43:10,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 380 transitions, 1138 flow [2024-11-24 00:43:10,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3918 transitions. [2024-11-24 00:43:10,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769593400117855 [2024-11-24 00:43:10,093 INFO L175 Difference]: Start difference. First operand has 477 places, 385 transitions, 1038 flow. Second operand 3 states and 3918 transitions. [2024-11-24 00:43:10,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 380 transitions, 1138 flow [2024-11-24 00:43:10,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 380 transitions, 1134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:10,101 INFO L231 Difference]: Finished difference. Result has 471 places, 356 transitions, 976 flow [2024-11-24 00:43:10,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=976, PETRI_PLACES=471, PETRI_TRANSITIONS=356} [2024-11-24 00:43:10,102 INFO L279 CegarLoopForPetriNet]: 477 programPoint places, -6 predicate places. [2024-11-24 00:43:10,102 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 356 transitions, 976 flow [2024-11-24 00:43:10,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1287.0) internal successors, (3861), 3 states have internal predecessors, (3861), 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 00:43:10,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:10,102 INFO L206 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:10,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2024-11-24 00:43:10,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-24 00:43:10,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1977676780, now seen corresponding path program 1 times [2024-11-24 00:43:10,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:10,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171094189] [2024-11-24 00:43:10,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:10,381 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 00:43:10,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:10,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171094189] [2024-11-24 00:43:10,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171094189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:10,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:10,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:10,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328886754] [2024-11-24 00:43:10,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:10,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:10,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:10,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:10,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:10,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1422 out of 1697 [2024-11-24 00:43:10,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 356 transitions, 976 flow. Second operand has 4 states, 4 states have (on average 1434.5) internal successors, (5738), 4 states have internal predecessors, (5738), 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 00:43:10,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:10,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1422 of 1697 [2024-11-24 00:43:10,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:11,009 INFO L124 PetriNetUnfolderBase]: 0/921 cut-off events. [2024-11-24 00:43:11,009 INFO L125 PetriNetUnfolderBase]: For 1076/1076 co-relation queries the response was YES. [2024-11-24 00:43:11,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 921 events. 0/921 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 527 event pairs, 0 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2024-11-24 00:43:11,010 INFO L140 encePairwiseOnDemand]: 1693/1697 looper letters, 48 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2024-11-24 00:43:11,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 355 transitions, 1076 flow [2024-11-24 00:43:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5740 transitions. [2024-11-24 00:43:11,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8456098998232174 [2024-11-24 00:43:11,016 INFO L175 Difference]: Start difference. First operand has 471 places, 356 transitions, 976 flow. Second operand 4 states and 5740 transitions. [2024-11-24 00:43:11,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 355 transitions, 1076 flow [2024-11-24 00:43:11,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 355 transitions, 1075 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:11,022 INFO L231 Difference]: Finished difference. Result has 448 places, 355 transitions, 979 flow [2024-11-24 00:43:11,022 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=979, PETRI_PLACES=448, PETRI_TRANSITIONS=355} [2024-11-24 00:43:11,023 INFO L279 CegarLoopForPetriNet]: 477 programPoint places, -29 predicate places. [2024-11-24 00:43:11,023 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 355 transitions, 979 flow [2024-11-24 00:43:11,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1434.5) internal successors, (5738), 4 states have internal predecessors, (5738), 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 00:43:11,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:11,024 INFO L206 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:11,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2024-11-24 00:43:11,024 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-24 00:43:11,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash -677979092, now seen corresponding path program 1 times [2024-11-24 00:43:11,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:11,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509696201] [2024-11-24 00:43:11,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:11,174 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:11,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:11,730 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 52 remaining) [2024-11-24 00:43:11,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2024-11-24 00:43:11,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2024-11-24 00:43:11,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2024-11-24 00:43:11,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2024-11-24 00:43:11,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-11-24 00:43:11,733 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:11,734 WARN L246 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:11,734 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2024-11-24 00:43:11,977 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:11,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1733 places, 1734 transitions, 7788 flow [2024-11-24 00:43:13,172 INFO L124 PetriNetUnfolderBase]: 232/2972 cut-off events. [2024-11-24 00:43:13,172 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2024-11-24 00:43:13,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4235 conditions, 2972 events. 232/2972 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8614 event pairs, 0 based on Foata normal form. 0/2598 useless extension candidates. Maximal degree in co-relation 4144. Up to 92 conditions per place. [2024-11-24 00:43:13,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 1733 places, 1734 transitions, 7788 flow [2024-11-24 00:43:13,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 486 places, 397 transitions, 2957 flow [2024-11-24 00:43:13,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:13,234 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:13,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-24 00:43:13,235 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:13,235 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:13,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:13,236 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:13,236 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:13,236 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-24 00:43:13,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:13,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1681758802, now seen corresponding path program 1 times [2024-11-24 00:43:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505712285] [2024-11-24 00:43:13,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:13,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:13,287 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 00:43:13,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505712285] [2024-11-24 00:43:13,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505712285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:13,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:13,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:13,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644411868] [2024-11-24 00:43:13,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:13,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:13,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:13,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:13,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:13,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1406 out of 1734 [2024-11-24 00:43:13,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 397 transitions, 2957 flow. Second operand has 3 states, 3 states have (on average 1407.3333333333333) internal successors, (4222), 3 states have internal predecessors, (4222), 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 00:43:13,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:13,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1406 of 1734 [2024-11-24 00:43:13,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:14,390 INFO L124 PetriNetUnfolderBase]: 93/2280 cut-off events. [2024-11-24 00:43:14,390 INFO L125 PetriNetUnfolderBase]: For 17251/17251 co-relation queries the response was YES. [2024-11-24 00:43:14,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3829 conditions, 2280 events. 93/2280 cut-off events. For 17251/17251 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6261 event pairs, 46 based on Foata normal form. 93/2184 useless extension candidates. Maximal degree in co-relation 3681. Up to 328 conditions per place. [2024-11-24 00:43:14,431 INFO L140 encePairwiseOnDemand]: 1728/1734 looper letters, 55 selfloop transitions, 2 changer transitions 1/393 dead transitions. [2024-11-24 00:43:14,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 393 transitions, 3063 flow [2024-11-24 00:43:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:14,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4279 transitions. [2024-11-24 00:43:14,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8225682429834679 [2024-11-24 00:43:14,433 INFO L175 Difference]: Start difference. First operand has 486 places, 397 transitions, 2957 flow. Second operand 3 states and 4279 transitions. [2024-11-24 00:43:14,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 393 transitions, 3063 flow [2024-11-24 00:43:14,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 393 transitions, 1170 flow, removed 946 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:14,502 INFO L231 Difference]: Finished difference. Result has 486 places, 392 transitions, 1058 flow [2024-11-24 00:43:14,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1734, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1058, PETRI_PLACES=486, PETRI_TRANSITIONS=392} [2024-11-24 00:43:14,503 INFO L279 CegarLoopForPetriNet]: 486 programPoint places, 0 predicate places. [2024-11-24 00:43:14,503 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 392 transitions, 1058 flow [2024-11-24 00:43:14,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1407.3333333333333) internal successors, (4222), 3 states have internal predecessors, (4222), 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 00:43:14,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:14,503 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:14,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2024-11-24 00:43:14,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-24 00:43:14,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -441685433, now seen corresponding path program 1 times [2024-11-24 00:43:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:14,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642627583] [2024-11-24 00:43:14,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:14,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:14,562 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 00:43:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642627583] [2024-11-24 00:43:14,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642627583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:14,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:14,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43212797] [2024-11-24 00:43:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:14,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:14,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:14,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:14,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:14,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1314 out of 1734 [2024-11-24 00:43:14,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 392 transitions, 1058 flow. Second operand has 3 states, 3 states have (on average 1315.0) internal successors, (3945), 3 states have internal predecessors, (3945), 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 00:43:14,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:14,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1314 of 1734 [2024-11-24 00:43:14,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:15,504 INFO L124 PetriNetUnfolderBase]: 47/2046 cut-off events. [2024-11-24 00:43:15,504 INFO L125 PetriNetUnfolderBase]: For 1124/1124 co-relation queries the response was YES. [2024-11-24 00:43:15,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 2046 events. 47/2046 cut-off events. For 1124/1124 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4626 event pairs, 0 based on Foata normal form. 46/1999 useless extension candidates. Maximal degree in co-relation 2492. Up to 235 conditions per place. [2024-11-24 00:43:15,537 INFO L140 encePairwiseOnDemand]: 1728/1734 looper letters, 53 selfloop transitions, 1 changer transitions 24/387 dead transitions. [2024-11-24 00:43:15,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 387 transitions, 1160 flow [2024-11-24 00:43:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4003 transitions. [2024-11-24 00:43:15,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7695117262591311 [2024-11-24 00:43:15,540 INFO L175 Difference]: Start difference. First operand has 486 places, 392 transitions, 1058 flow. Second operand 3 states and 4003 transitions. [2024-11-24 00:43:15,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 387 transitions, 1160 flow [2024-11-24 00:43:15,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 387 transitions, 1156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:15,546 INFO L231 Difference]: Finished difference. Result has 480 places, 363 transitions, 996 flow [2024-11-24 00:43:15,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1734, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=996, PETRI_PLACES=480, PETRI_TRANSITIONS=363} [2024-11-24 00:43:15,546 INFO L279 CegarLoopForPetriNet]: 486 programPoint places, -6 predicate places. [2024-11-24 00:43:15,546 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 363 transitions, 996 flow [2024-11-24 00:43:15,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1315.0) internal successors, (3945), 3 states have internal predecessors, (3945), 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 00:43:15,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:15,547 INFO L206 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:15,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2024-11-24 00:43:15,547 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-24 00:43:15,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1283824756, now seen corresponding path program 1 times [2024-11-24 00:43:15,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:15,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939547468] [2024-11-24 00:43:15,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:15,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:15,748 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 00:43:15,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:15,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939547468] [2024-11-24 00:43:15,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939547468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:15,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:15,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636845976] [2024-11-24 00:43:15,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:15,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:15,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:15,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:15,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:15,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1453 out of 1734 [2024-11-24 00:43:15,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 363 transitions, 996 flow. Second operand has 4 states, 4 states have (on average 1465.75) internal successors, (5863), 4 states have internal predecessors, (5863), 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 00:43:15,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:15,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1453 of 1734 [2024-11-24 00:43:15,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:16,246 INFO L124 PetriNetUnfolderBase]: 0/941 cut-off events. [2024-11-24 00:43:16,246 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-24 00:43:16,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 941 events. 0/941 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 540 event pairs, 0 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2024-11-24 00:43:16,247 INFO L140 encePairwiseOnDemand]: 1730/1734 looper letters, 49 selfloop transitions, 3 changer transitions 0/362 dead transitions. [2024-11-24 00:43:16,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 362 transitions, 1098 flow [2024-11-24 00:43:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:16,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:16,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5865 transitions. [2024-11-24 00:43:16,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8455882352941176 [2024-11-24 00:43:16,251 INFO L175 Difference]: Start difference. First operand has 480 places, 363 transitions, 996 flow. Second operand 4 states and 5865 transitions. [2024-11-24 00:43:16,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 362 transitions, 1098 flow [2024-11-24 00:43:16,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 362 transitions, 1097 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:16,255 INFO L231 Difference]: Finished difference. Result has 457 places, 362 transitions, 999 flow [2024-11-24 00:43:16,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1734, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=999, PETRI_PLACES=457, PETRI_TRANSITIONS=362} [2024-11-24 00:43:16,256 INFO L279 CegarLoopForPetriNet]: 486 programPoint places, -29 predicate places. [2024-11-24 00:43:16,256 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 362 transitions, 999 flow [2024-11-24 00:43:16,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1465.75) internal successors, (5863), 4 states have internal predecessors, (5863), 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 00:43:16,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:16,257 INFO L206 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:16,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2024-11-24 00:43:16,257 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-24 00:43:16,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:16,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1960303726, now seen corresponding path program 1 times [2024-11-24 00:43:16,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043521846] [2024-11-24 00:43:16,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:16,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:16,353 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:16,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:16,646 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:16,646 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-11-24 00:43:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2024-11-24 00:43:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2024-11-24 00:43:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2024-11-24 00:43:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2024-11-24 00:43:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2024-11-24 00:43:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2024-11-24 00:43:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2024-11-24 00:43:16,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2024-11-24 00:43:16,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2024-11-24 00:43:16,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2024-11-24 00:43:16,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2024-11-24 00:43:16,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2024-11-24 00:43:16,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2024-11-24 00:43:16,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2024-11-24 00:43:16,649 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:16,649 WARN L246 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:16,649 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2024-11-24 00:43:16,846 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:16,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1770 places, 1771 transitions, 8050 flow [2024-11-24 00:43:17,873 INFO L124 PetriNetUnfolderBase]: 237/3036 cut-off events. [2024-11-24 00:43:17,873 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2024-11-24 00:43:17,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4350 conditions, 3036 events. 237/3036 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8793 event pairs, 0 based on Foata normal form. 0/2654 useless extension candidates. Maximal degree in co-relation 4257. Up to 94 conditions per place. [2024-11-24 00:43:17,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 1770 places, 1771 transitions, 8050 flow [2024-11-24 00:43:17,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 495 places, 404 transitions, 3065 flow [2024-11-24 00:43:17,940 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:17,940 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:17,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2024-11-24 00:43:17,941 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:17,941 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:17,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:17,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:17,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:17,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-24 00:43:17,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash -446448818, now seen corresponding path program 1 times [2024-11-24 00:43:17,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:17,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413408692] [2024-11-24 00:43:17,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:17,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:17,995 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 00:43:17,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413408692] [2024-11-24 00:43:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413408692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:17,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:17,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:17,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515858553] [2024-11-24 00:43:17,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:17,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:17,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:17,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:18,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1436 out of 1771 [2024-11-24 00:43:18,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 404 transitions, 3065 flow. Second operand has 3 states, 3 states have (on average 1437.3333333333333) internal successors, (4312), 3 states have internal predecessors, (4312), 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 00:43:18,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:18,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1436 of 1771 [2024-11-24 00:43:18,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:19,133 INFO L124 PetriNetUnfolderBase]: 95/2329 cut-off events. [2024-11-24 00:43:19,133 INFO L125 PetriNetUnfolderBase]: For 18378/18378 co-relation queries the response was YES. [2024-11-24 00:43:19,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3935 conditions, 2329 events. 95/2329 cut-off events. For 18378/18378 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6437 event pairs, 47 based on Foata normal form. 95/2231 useless extension candidates. Maximal degree in co-relation 3786. Up to 335 conditions per place. [2024-11-24 00:43:19,174 INFO L140 encePairwiseOnDemand]: 1765/1771 looper letters, 56 selfloop transitions, 2 changer transitions 1/400 dead transitions. [2024-11-24 00:43:19,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 400 transitions, 3173 flow [2024-11-24 00:43:19,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4370 transitions. [2024-11-24 00:43:19,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8225108225108225 [2024-11-24 00:43:19,177 INFO L175 Difference]: Start difference. First operand has 495 places, 404 transitions, 3065 flow. Second operand 3 states and 4370 transitions. [2024-11-24 00:43:19,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 400 transitions, 3173 flow [2024-11-24 00:43:19,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 400 transitions, 1192 flow, removed 990 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:19,216 INFO L231 Difference]: Finished difference. Result has 495 places, 399 transitions, 1078 flow [2024-11-24 00:43:19,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1771, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1078, PETRI_PLACES=495, PETRI_TRANSITIONS=399} [2024-11-24 00:43:19,217 INFO L279 CegarLoopForPetriNet]: 495 programPoint places, 0 predicate places. [2024-11-24 00:43:19,217 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 399 transitions, 1078 flow [2024-11-24 00:43:19,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1437.3333333333333) internal successors, (4312), 3 states have internal predecessors, (4312), 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 00:43:19,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:19,218 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:19,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2024-11-24 00:43:19,218 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-24 00:43:19,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1400014386, now seen corresponding path program 1 times [2024-11-24 00:43:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:19,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511574627] [2024-11-24 00:43:19,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:19,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:19,293 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 00:43:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:19,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511574627] [2024-11-24 00:43:19,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511574627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:19,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:19,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:19,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771022400] [2024-11-24 00:43:19,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:19,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:19,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:19,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:19,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1342 out of 1771 [2024-11-24 00:43:19,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 399 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 1343.0) internal successors, (4029), 3 states have internal predecessors, (4029), 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 00:43:19,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:19,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1342 of 1771 [2024-11-24 00:43:19,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:20,248 INFO L124 PetriNetUnfolderBase]: 48/2090 cut-off events. [2024-11-24 00:43:20,248 INFO L125 PetriNetUnfolderBase]: For 1172/1172 co-relation queries the response was YES. [2024-11-24 00:43:20,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 2090 events. 48/2090 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4727 event pairs, 0 based on Foata normal form. 47/2042 useless extension candidates. Maximal degree in co-relation 2546. Up to 240 conditions per place. [2024-11-24 00:43:20,279 INFO L140 encePairwiseOnDemand]: 1765/1771 looper letters, 54 selfloop transitions, 1 changer transitions 24/394 dead transitions. [2024-11-24 00:43:20,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 394 transitions, 1182 flow [2024-11-24 00:43:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:20,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4088 transitions. [2024-11-24 00:43:20,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769433465085639 [2024-11-24 00:43:20,282 INFO L175 Difference]: Start difference. First operand has 495 places, 399 transitions, 1078 flow. Second operand 3 states and 4088 transitions. [2024-11-24 00:43:20,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 394 transitions, 1182 flow [2024-11-24 00:43:20,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 394 transitions, 1178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:20,288 INFO L231 Difference]: Finished difference. Result has 489 places, 370 transitions, 1016 flow [2024-11-24 00:43:20,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1771, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1016, PETRI_PLACES=489, PETRI_TRANSITIONS=370} [2024-11-24 00:43:20,288 INFO L279 CegarLoopForPetriNet]: 495 programPoint places, -6 predicate places. [2024-11-24 00:43:20,289 INFO L471 AbstractCegarLoop]: Abstraction has has 489 places, 370 transitions, 1016 flow [2024-11-24 00:43:20,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1343.0) internal successors, (4029), 3 states have internal predecessors, (4029), 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 00:43:20,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:20,289 INFO L206 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:20,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2024-11-24 00:43:20,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-24 00:43:20,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:20,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1265135869, now seen corresponding path program 1 times [2024-11-24 00:43:20,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:20,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829663828] [2024-11-24 00:43:20,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:20,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:20,544 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 00:43:20,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:20,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829663828] [2024-11-24 00:43:20,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829663828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:20,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:20,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:20,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613824725] [2024-11-24 00:43:20,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:20,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:20,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:20,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:20,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:20,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1484 out of 1771 [2024-11-24 00:43:20,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 370 transitions, 1016 flow. Second operand has 4 states, 4 states have (on average 1497.0) internal successors, (5988), 4 states have internal predecessors, (5988), 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 00:43:20,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:20,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1484 of 1771 [2024-11-24 00:43:20,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:21,033 INFO L124 PetriNetUnfolderBase]: 0/961 cut-off events. [2024-11-24 00:43:21,033 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2024-11-24 00:43:21,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 961 events. 0/961 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 551 event pairs, 0 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2024-11-24 00:43:21,034 INFO L140 encePairwiseOnDemand]: 1767/1771 looper letters, 50 selfloop transitions, 3 changer transitions 0/369 dead transitions. [2024-11-24 00:43:21,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 369 transitions, 1120 flow [2024-11-24 00:43:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5990 transitions. [2024-11-24 00:43:21,038 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8455674760022586 [2024-11-24 00:43:21,038 INFO L175 Difference]: Start difference. First operand has 489 places, 370 transitions, 1016 flow. Second operand 4 states and 5990 transitions. [2024-11-24 00:43:21,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 369 transitions, 1120 flow [2024-11-24 00:43:21,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 369 transitions, 1119 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:21,042 INFO L231 Difference]: Finished difference. Result has 466 places, 369 transitions, 1019 flow [2024-11-24 00:43:21,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1771, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1019, PETRI_PLACES=466, PETRI_TRANSITIONS=369} [2024-11-24 00:43:21,043 INFO L279 CegarLoopForPetriNet]: 495 programPoint places, -29 predicate places. [2024-11-24 00:43:21,043 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 369 transitions, 1019 flow [2024-11-24 00:43:21,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1497.0) internal successors, (5988), 4 states have internal predecessors, (5988), 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 00:43:21,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:21,044 INFO L206 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:21,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2024-11-24 00:43:21,044 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-24 00:43:21,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1704299674, now seen corresponding path program 1 times [2024-11-24 00:43:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:21,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737694970] [2024-11-24 00:43:21,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:21,148 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:21,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:21,610 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2024-11-24 00:43:21,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2024-11-24 00:43:21,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2024-11-24 00:43:21,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2024-11-24 00:43:21,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2024-11-24 00:43:21,612 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:21,613 WARN L246 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:21,613 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2024-11-24 00:43:21,930 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:21,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1807 places, 1808 transitions, 8316 flow [2024-11-24 00:43:23,621 INFO L124 PetriNetUnfolderBase]: 242/3100 cut-off events. [2024-11-24 00:43:23,621 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2024-11-24 00:43:23,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4466 conditions, 3100 events. 242/3100 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8949 event pairs, 0 based on Foata normal form. 0/2710 useless extension candidates. Maximal degree in co-relation 4371. Up to 96 conditions per place. [2024-11-24 00:43:23,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 1807 places, 1808 transitions, 8316 flow [2024-11-24 00:43:23,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 504 places, 411 transitions, 3175 flow [2024-11-24 00:43:23,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:23,719 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:23,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-24 00:43:23,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:23,721 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:23,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:23,721 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:23,721 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:23,721 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-24 00:43:23,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:23,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1789957810, now seen corresponding path program 1 times [2024-11-24 00:43:23,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:23,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58482978] [2024-11-24 00:43:23,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:23,787 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 00:43:23,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:23,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58482978] [2024-11-24 00:43:23,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58482978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:23,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:23,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126435404] [2024-11-24 00:43:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:23,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:23,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:23,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:23,991 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1466 out of 1808 [2024-11-24 00:43:23,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 411 transitions, 3175 flow. Second operand has 3 states, 3 states have (on average 1467.3333333333333) internal successors, (4402), 3 states have internal predecessors, (4402), 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 00:43:23,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:23,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1466 of 1808 [2024-11-24 00:43:23,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:25,023 INFO L124 PetriNetUnfolderBase]: 97/2378 cut-off events. [2024-11-24 00:43:25,023 INFO L125 PetriNetUnfolderBase]: For 19553/19553 co-relation queries the response was YES. [2024-11-24 00:43:25,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4042 conditions, 2378 events. 97/2378 cut-off events. For 19553/19553 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6567 event pairs, 48 based on Foata normal form. 97/2278 useless extension candidates. Maximal degree in co-relation 3892. Up to 342 conditions per place. [2024-11-24 00:43:25,066 INFO L140 encePairwiseOnDemand]: 1802/1808 looper letters, 57 selfloop transitions, 2 changer transitions 1/407 dead transitions. [2024-11-24 00:43:25,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 407 transitions, 3285 flow [2024-11-24 00:43:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4461 transitions. [2024-11-24 00:43:25,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8224557522123894 [2024-11-24 00:43:25,068 INFO L175 Difference]: Start difference. First operand has 504 places, 411 transitions, 3175 flow. Second operand 3 states and 4461 transitions. [2024-11-24 00:43:25,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 407 transitions, 3285 flow [2024-11-24 00:43:25,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 407 transitions, 1214 flow, removed 1035 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:25,106 INFO L231 Difference]: Finished difference. Result has 504 places, 406 transitions, 1098 flow [2024-11-24 00:43:25,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1808, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=504, PETRI_TRANSITIONS=406} [2024-11-24 00:43:25,106 INFO L279 CegarLoopForPetriNet]: 504 programPoint places, 0 predicate places. [2024-11-24 00:43:25,106 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 406 transitions, 1098 flow [2024-11-24 00:43:25,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1467.3333333333333) internal successors, (4402), 3 states have internal predecessors, (4402), 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 00:43:25,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:25,107 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:25,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2024-11-24 00:43:25,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-24 00:43:25,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:25,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1725660482, now seen corresponding path program 1 times [2024-11-24 00:43:25,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:25,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370257430] [2024-11-24 00:43:25,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:25,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:25,165 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 00:43:25,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:25,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370257430] [2024-11-24 00:43:25,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370257430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:25,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:25,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:25,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403607222] [2024-11-24 00:43:25,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:25,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:25,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:25,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:25,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:25,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1370 out of 1808 [2024-11-24 00:43:25,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 406 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 1371.0) internal successors, (4113), 3 states have internal predecessors, (4113), 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 00:43:25,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:25,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1370 of 1808 [2024-11-24 00:43:25,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:26,249 INFO L124 PetriNetUnfolderBase]: 49/2134 cut-off events. [2024-11-24 00:43:26,249 INFO L125 PetriNetUnfolderBase]: For 1221/1221 co-relation queries the response was YES. [2024-11-24 00:43:26,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 2134 events. 49/2134 cut-off events. For 1221/1221 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4829 event pairs, 0 based on Foata normal form. 48/2085 useless extension candidates. Maximal degree in co-relation 2600. Up to 245 conditions per place. [2024-11-24 00:43:26,271 INFO L140 encePairwiseOnDemand]: 1802/1808 looper letters, 55 selfloop transitions, 1 changer transitions 24/401 dead transitions. [2024-11-24 00:43:26,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 401 transitions, 1204 flow [2024-11-24 00:43:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:26,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4173 transitions. [2024-11-24 00:43:26,274 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769358407079646 [2024-11-24 00:43:26,274 INFO L175 Difference]: Start difference. First operand has 504 places, 406 transitions, 1098 flow. Second operand 3 states and 4173 transitions. [2024-11-24 00:43:26,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 401 transitions, 1204 flow [2024-11-24 00:43:26,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 401 transitions, 1200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:26,279 INFO L231 Difference]: Finished difference. Result has 498 places, 377 transitions, 1036 flow [2024-11-24 00:43:26,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1808, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1036, PETRI_PLACES=498, PETRI_TRANSITIONS=377} [2024-11-24 00:43:26,279 INFO L279 CegarLoopForPetriNet]: 504 programPoint places, -6 predicate places. [2024-11-24 00:43:26,279 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 377 transitions, 1036 flow [2024-11-24 00:43:26,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1371.0) internal successors, (4113), 3 states have internal predecessors, (4113), 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 00:43:26,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:26,280 INFO L206 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2024-11-24 00:43:26,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-24 00:43:26,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:26,285 INFO L85 PathProgramCache]: Analyzing trace with hash -982718449, now seen corresponding path program 1 times [2024-11-24 00:43:26,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:26,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298373828] [2024-11-24 00:43:26,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:26,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:26,474 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 00:43:26,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:26,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298373828] [2024-11-24 00:43:26,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298373828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:26,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:26,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:26,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450311304] [2024-11-24 00:43:26,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:26,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:26,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:26,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:26,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:26,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1515 out of 1808 [2024-11-24 00:43:26,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 377 transitions, 1036 flow. Second operand has 4 states, 4 states have (on average 1528.25) internal successors, (6113), 4 states have internal predecessors, (6113), 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 00:43:26,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:26,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1515 of 1808 [2024-11-24 00:43:26,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:27,011 INFO L124 PetriNetUnfolderBase]: 0/981 cut-off events. [2024-11-24 00:43:27,011 INFO L125 PetriNetUnfolderBase]: For 1220/1220 co-relation queries the response was YES. [2024-11-24 00:43:27,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 981 events. 0/981 cut-off events. For 1220/1220 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 563 event pairs, 0 based on Foata normal form. 0/981 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2024-11-24 00:43:27,012 INFO L140 encePairwiseOnDemand]: 1804/1808 looper letters, 51 selfloop transitions, 3 changer transitions 0/376 dead transitions. [2024-11-24 00:43:27,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 376 transitions, 1142 flow [2024-11-24 00:43:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:27,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6115 transitions. [2024-11-24 00:43:27,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8455475663716814 [2024-11-24 00:43:27,016 INFO L175 Difference]: Start difference. First operand has 498 places, 377 transitions, 1036 flow. Second operand 4 states and 6115 transitions. [2024-11-24 00:43:27,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 376 transitions, 1142 flow [2024-11-24 00:43:27,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 376 transitions, 1141 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:27,020 INFO L231 Difference]: Finished difference. Result has 475 places, 376 transitions, 1039 flow [2024-11-24 00:43:27,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1808, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1039, PETRI_PLACES=475, PETRI_TRANSITIONS=376} [2024-11-24 00:43:27,021 INFO L279 CegarLoopForPetriNet]: 504 programPoint places, -29 predicate places. [2024-11-24 00:43:27,021 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 376 transitions, 1039 flow [2024-11-24 00:43:27,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1528.25) internal successors, (6113), 4 states have internal predecessors, (6113), 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 00:43:27,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:27,022 INFO L206 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:27,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2024-11-24 00:43:27,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-24 00:43:27,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:27,026 INFO L85 PathProgramCache]: Analyzing trace with hash -456789048, now seen corresponding path program 1 times [2024-11-24 00:43:27,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:27,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31285947] [2024-11-24 00:43:27,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:27,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:27,183 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:27,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:27,549 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-24 00:43:27,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-24 00:43:27,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-24 00:43:27,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-24 00:43:27,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-24 00:43:27,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-24 00:43:27,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-24 00:43:27,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-24 00:43:27,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2024-11-24 00:43:27,553 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:27,553 WARN L246 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:27,553 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2024-11-24 00:43:27,804 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:27,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1844 places, 1845 transitions, 8586 flow [2024-11-24 00:43:29,349 INFO L124 PetriNetUnfolderBase]: 247/3164 cut-off events. [2024-11-24 00:43:29,349 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2024-11-24 00:43:29,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4583 conditions, 3164 events. 247/3164 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8950 event pairs, 0 based on Foata normal form. 0/2766 useless extension candidates. Maximal degree in co-relation 4486. Up to 98 conditions per place. [2024-11-24 00:43:29,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 1844 places, 1845 transitions, 8586 flow [2024-11-24 00:43:29,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 513 places, 418 transitions, 3287 flow [2024-11-24 00:43:29,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:29,435 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:29,435 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-24 00:43:29,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:29,437 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:29,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:29,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:29,437 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:29,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-24 00:43:29,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1417318482, now seen corresponding path program 1 times [2024-11-24 00:43:29,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:29,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309318603] [2024-11-24 00:43:29,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:29,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:29,530 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 00:43:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309318603] [2024-11-24 00:43:29,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309318603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:29,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:29,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:29,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789500358] [2024-11-24 00:43:29,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:29,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:29,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:29,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:29,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:29,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1496 out of 1845 [2024-11-24 00:43:29,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 418 transitions, 3287 flow. Second operand has 3 states, 3 states have (on average 1497.3333333333333) internal successors, (4492), 3 states have internal predecessors, (4492), 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 00:43:29,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:29,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1496 of 1845 [2024-11-24 00:43:29,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:31,058 INFO L124 PetriNetUnfolderBase]: 99/2427 cut-off events. [2024-11-24 00:43:31,059 INFO L125 PetriNetUnfolderBase]: For 20777/20777 co-relation queries the response was YES. [2024-11-24 00:43:31,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4150 conditions, 2427 events. 99/2427 cut-off events. For 20777/20777 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6447 event pairs, 49 based on Foata normal form. 50/2276 useless extension candidates. Maximal degree in co-relation 3999. Up to 349 conditions per place. [2024-11-24 00:43:31,088 INFO L140 encePairwiseOnDemand]: 1839/1845 looper letters, 58 selfloop transitions, 2 changer transitions 1/414 dead transitions. [2024-11-24 00:43:31,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 414 transitions, 3399 flow [2024-11-24 00:43:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4552 transitions. [2024-11-24 00:43:31,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8224028906955736 [2024-11-24 00:43:31,091 INFO L175 Difference]: Start difference. First operand has 513 places, 418 transitions, 3287 flow. Second operand 3 states and 4552 transitions. [2024-11-24 00:43:31,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 414 transitions, 3399 flow [2024-11-24 00:43:31,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 414 transitions, 1236 flow, removed 1081 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:31,129 INFO L231 Difference]: Finished difference. Result has 513 places, 413 transitions, 1118 flow [2024-11-24 00:43:31,129 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=513, PETRI_TRANSITIONS=413} [2024-11-24 00:43:31,129 INFO L279 CegarLoopForPetriNet]: 513 programPoint places, 0 predicate places. [2024-11-24 00:43:31,129 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 413 transitions, 1118 flow [2024-11-24 00:43:31,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1497.3333333333333) internal successors, (4492), 3 states have internal predecessors, (4492), 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 00:43:31,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:31,130 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:31,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2024-11-24 00:43:31,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-24 00:43:31,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:31,130 INFO L85 PathProgramCache]: Analyzing trace with hash 535252855, now seen corresponding path program 1 times [2024-11-24 00:43:31,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:31,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876214391] [2024-11-24 00:43:31,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:31,187 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 00:43:31,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876214391] [2024-11-24 00:43:31,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876214391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:31,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:31,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153072332] [2024-11-24 00:43:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:31,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:31,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:31,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:31,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1398 out of 1845 [2024-11-24 00:43:31,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 413 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 1399.0) internal successors, (4197), 3 states have internal predecessors, (4197), 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 00:43:31,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:31,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1398 of 1845 [2024-11-24 00:43:31,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:32,319 INFO L124 PetriNetUnfolderBase]: 50/2178 cut-off events. [2024-11-24 00:43:32,319 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-24 00:43:32,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2723 conditions, 2178 events. 50/2178 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4784 event pairs, 0 based on Foata normal form. 49/2128 useless extension candidates. Maximal degree in co-relation 2654. Up to 250 conditions per place. [2024-11-24 00:43:32,355 INFO L140 encePairwiseOnDemand]: 1839/1845 looper letters, 56 selfloop transitions, 1 changer transitions 24/408 dead transitions. [2024-11-24 00:43:32,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 408 transitions, 1226 flow [2024-11-24 00:43:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4258 transitions. [2024-11-24 00:43:32,358 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7692863595302619 [2024-11-24 00:43:32,358 INFO L175 Difference]: Start difference. First operand has 513 places, 413 transitions, 1118 flow. Second operand 3 states and 4258 transitions. [2024-11-24 00:43:32,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 408 transitions, 1226 flow [2024-11-24 00:43:32,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 408 transitions, 1222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:32,367 INFO L231 Difference]: Finished difference. Result has 507 places, 384 transitions, 1056 flow [2024-11-24 00:43:32,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1056, PETRI_PLACES=507, PETRI_TRANSITIONS=384} [2024-11-24 00:43:32,368 INFO L279 CegarLoopForPetriNet]: 513 programPoint places, -6 predicate places. [2024-11-24 00:43:32,368 INFO L471 AbstractCegarLoop]: Abstraction has has 507 places, 384 transitions, 1056 flow [2024-11-24 00:43:32,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1399.0) internal successors, (4197), 3 states have internal predecessors, (4197), 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 00:43:32,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:32,369 INFO L206 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:32,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2024-11-24 00:43:32,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-24 00:43:32,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:32,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1379762186, now seen corresponding path program 1 times [2024-11-24 00:43:32,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:32,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799223623] [2024-11-24 00:43:32,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:32,601 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 00:43:32,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:32,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799223623] [2024-11-24 00:43:32,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799223623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:32,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:32,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:32,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365767994] [2024-11-24 00:43:32,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:32,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:32,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:32,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:32,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:32,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1546 out of 1845 [2024-11-24 00:43:32,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 384 transitions, 1056 flow. Second operand has 4 states, 4 states have (on average 1559.5) internal successors, (6238), 4 states have internal predecessors, (6238), 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 00:43:32,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:32,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1546 of 1845 [2024-11-24 00:43:32,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:33,173 INFO L124 PetriNetUnfolderBase]: 0/1001 cut-off events. [2024-11-24 00:43:33,173 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-24 00:43:33,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 1001 events. 0/1001 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 575 event pairs, 0 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2024-11-24 00:43:33,175 INFO L140 encePairwiseOnDemand]: 1841/1845 looper letters, 52 selfloop transitions, 3 changer transitions 0/383 dead transitions. [2024-11-24 00:43:33,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 383 transitions, 1164 flow [2024-11-24 00:43:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:33,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6240 transitions. [2024-11-24 00:43:33,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8455284552845529 [2024-11-24 00:43:33,179 INFO L175 Difference]: Start difference. First operand has 507 places, 384 transitions, 1056 flow. Second operand 4 states and 6240 transitions. [2024-11-24 00:43:33,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 383 transitions, 1164 flow [2024-11-24 00:43:33,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 383 transitions, 1163 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:33,184 INFO L231 Difference]: Finished difference. Result has 484 places, 383 transitions, 1059 flow [2024-11-24 00:43:33,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1845, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1059, PETRI_PLACES=484, PETRI_TRANSITIONS=383} [2024-11-24 00:43:33,184 INFO L279 CegarLoopForPetriNet]: 513 programPoint places, -29 predicate places. [2024-11-24 00:43:33,184 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 383 transitions, 1059 flow [2024-11-24 00:43:33,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1559.5) internal successors, (6238), 4 states have internal predecessors, (6238), 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 00:43:33,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:33,186 INFO L206 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:33,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2024-11-24 00:43:33,186 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-24 00:43:33,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:33,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1896887080, now seen corresponding path program 1 times [2024-11-24 00:43:33,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:33,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076330891] [2024-11-24 00:43:33,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:33,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:33,310 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:33,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:33,731 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2024-11-24 00:43:33,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2024-11-24 00:43:33,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2024-11-24 00:43:33,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2024-11-24 00:43:33,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2024-11-24 00:43:33,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2024-11-24 00:43:33,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2024-11-24 00:43:33,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2024-11-24 00:43:33,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2024-11-24 00:43:33,734 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:33,734 WARN L246 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:33,734 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2024-11-24 00:43:33,946 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:33,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1881 places, 1882 transitions, 8860 flow [2024-11-24 00:43:35,274 INFO L124 PetriNetUnfolderBase]: 252/3228 cut-off events. [2024-11-24 00:43:35,274 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2024-11-24 00:43:35,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 3228 events. 252/3228 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9246 event pairs, 0 based on Foata normal form. 0/2822 useless extension candidates. Maximal degree in co-relation 4602. Up to 100 conditions per place. [2024-11-24 00:43:35,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 1881 places, 1882 transitions, 8860 flow [2024-11-24 00:43:35,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 425 transitions, 3401 flow [2024-11-24 00:43:35,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:35,363 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:35,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-11-24 00:43:35,364 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:35,364 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:35,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:35,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:35,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:35,364 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-24 00:43:35,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash 671469166, now seen corresponding path program 1 times [2024-11-24 00:43:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:35,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095111932] [2024-11-24 00:43:35,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:35,435 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 00:43:35,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:35,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095111932] [2024-11-24 00:43:35,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095111932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:35,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:35,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:35,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948593825] [2024-11-24 00:43:35,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:35,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:35,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:35,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:35,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:35,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1526 out of 1882 [2024-11-24 00:43:35,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 425 transitions, 3401 flow. Second operand has 3 states, 3 states have (on average 1527.3333333333333) internal successors, (4582), 3 states have internal predecessors, (4582), 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 00:43:35,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:35,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1526 of 1882 [2024-11-24 00:43:35,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:36,823 INFO L124 PetriNetUnfolderBase]: 101/2476 cut-off events. [2024-11-24 00:43:36,823 INFO L125 PetriNetUnfolderBase]: For 22051/22051 co-relation queries the response was YES. [2024-11-24 00:43:36,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4259 conditions, 2476 events. 101/2476 cut-off events. For 22051/22051 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6866 event pairs, 50 based on Foata normal form. 51/2322 useless extension candidates. Maximal degree in co-relation 4107. Up to 356 conditions per place. [2024-11-24 00:43:36,854 INFO L140 encePairwiseOnDemand]: 1876/1882 looper letters, 59 selfloop transitions, 2 changer transitions 1/421 dead transitions. [2024-11-24 00:43:36,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 421 transitions, 3515 flow [2024-11-24 00:43:36,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:36,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4643 transitions. [2024-11-24 00:43:36,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822352107686858 [2024-11-24 00:43:36,857 INFO L175 Difference]: Start difference. First operand has 522 places, 425 transitions, 3401 flow. Second operand 3 states and 4643 transitions. [2024-11-24 00:43:36,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 421 transitions, 3515 flow [2024-11-24 00:43:36,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 421 transitions, 1258 flow, removed 1128 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:36,899 INFO L231 Difference]: Finished difference. Result has 522 places, 420 transitions, 1138 flow [2024-11-24 00:43:36,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1882, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1138, PETRI_PLACES=522, PETRI_TRANSITIONS=420} [2024-11-24 00:43:36,900 INFO L279 CegarLoopForPetriNet]: 522 programPoint places, 0 predicate places. [2024-11-24 00:43:36,900 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 420 transitions, 1138 flow [2024-11-24 00:43:36,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1527.3333333333333) internal successors, (4582), 3 states have internal predecessors, (4582), 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 00:43:36,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:36,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:36,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2024-11-24 00:43:36,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-24 00:43:36,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:36,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2123758801, now seen corresponding path program 1 times [2024-11-24 00:43:36,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:36,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615584816] [2024-11-24 00:43:36,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:36,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:36,970 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 00:43:36,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:36,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615584816] [2024-11-24 00:43:36,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615584816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:36,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:36,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340149766] [2024-11-24 00:43:36,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:36,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:36,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:36,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:36,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:37,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1426 out of 1882 [2024-11-24 00:43:37,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 420 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 1427.0) internal successors, (4281), 3 states have internal predecessors, (4281), 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 00:43:37,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:37,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1426 of 1882 [2024-11-24 00:43:37,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:38,033 INFO L124 PetriNetUnfolderBase]: 51/2222 cut-off events. [2024-11-24 00:43:38,033 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2024-11-24 00:43:38,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 2222 events. 51/2222 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5137 event pairs, 0 based on Foata normal form. 50/2171 useless extension candidates. Maximal degree in co-relation 2708. Up to 255 conditions per place. [2024-11-24 00:43:38,070 INFO L140 encePairwiseOnDemand]: 1876/1882 looper letters, 57 selfloop transitions, 1 changer transitions 24/415 dead transitions. [2024-11-24 00:43:38,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 415 transitions, 1248 flow [2024-11-24 00:43:38,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4343 transitions. [2024-11-24 00:43:38,073 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769217144881332 [2024-11-24 00:43:38,073 INFO L175 Difference]: Start difference. First operand has 522 places, 420 transitions, 1138 flow. Second operand 3 states and 4343 transitions. [2024-11-24 00:43:38,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 415 transitions, 1248 flow [2024-11-24 00:43:38,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 415 transitions, 1244 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:38,079 INFO L231 Difference]: Finished difference. Result has 516 places, 391 transitions, 1076 flow [2024-11-24 00:43:38,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1882, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1076, PETRI_PLACES=516, PETRI_TRANSITIONS=391} [2024-11-24 00:43:38,079 INFO L279 CegarLoopForPetriNet]: 522 programPoint places, -6 predicate places. [2024-11-24 00:43:38,079 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 391 transitions, 1076 flow [2024-11-24 00:43:38,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1427.0) internal successors, (4281), 3 states have internal predecessors, (4281), 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 00:43:38,080 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:38,080 INFO L206 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:38,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2024-11-24 00:43:38,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-24 00:43:38,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1035589454, now seen corresponding path program 1 times [2024-11-24 00:43:38,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:38,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439508089] [2024-11-24 00:43:38,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:38,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:38,350 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 00:43:38,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:38,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439508089] [2024-11-24 00:43:38,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439508089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:38,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:38,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:38,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178955738] [2024-11-24 00:43:38,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:38,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:38,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:38,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:38,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:38,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1577 out of 1882 [2024-11-24 00:43:38,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 391 transitions, 1076 flow. Second operand has 4 states, 4 states have (on average 1590.75) internal successors, (6363), 4 states have internal predecessors, (6363), 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 00:43:38,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:38,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1577 of 1882 [2024-11-24 00:43:38,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:38,973 INFO L124 PetriNetUnfolderBase]: 0/1021 cut-off events. [2024-11-24 00:43:38,973 INFO L125 PetriNetUnfolderBase]: For 1321/1321 co-relation queries the response was YES. [2024-11-24 00:43:38,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 1021 events. 0/1021 cut-off events. For 1321/1321 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 587 event pairs, 0 based on Foata normal form. 0/1021 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2024-11-24 00:43:38,975 INFO L140 encePairwiseOnDemand]: 1878/1882 looper letters, 53 selfloop transitions, 3 changer transitions 0/390 dead transitions. [2024-11-24 00:43:38,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 390 transitions, 1186 flow [2024-11-24 00:43:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:38,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6365 transitions. [2024-11-24 00:43:38,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.845510095642933 [2024-11-24 00:43:38,980 INFO L175 Difference]: Start difference. First operand has 516 places, 391 transitions, 1076 flow. Second operand 4 states and 6365 transitions. [2024-11-24 00:43:38,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 390 transitions, 1186 flow [2024-11-24 00:43:38,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 390 transitions, 1185 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:38,986 INFO L231 Difference]: Finished difference. Result has 493 places, 390 transitions, 1079 flow [2024-11-24 00:43:38,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1882, PETRI_DIFFERENCE_MINUEND_FLOW=1073, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1079, PETRI_PLACES=493, PETRI_TRANSITIONS=390} [2024-11-24 00:43:38,987 INFO L279 CegarLoopForPetriNet]: 522 programPoint places, -29 predicate places. [2024-11-24 00:43:38,987 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 390 transitions, 1079 flow [2024-11-24 00:43:38,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1590.75) internal successors, (6363), 4 states have internal predecessors, (6363), 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 00:43:38,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:38,988 INFO L206 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:38,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2024-11-24 00:43:38,988 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-24 00:43:38,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash -694016330, now seen corresponding path program 1 times [2024-11-24 00:43:38,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:38,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772693917] [2024-11-24 00:43:38,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:38,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:39,177 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:39,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:39,763 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:39,763 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 57 remaining) [2024-11-24 00:43:39,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 57 remaining) [2024-11-24 00:43:39,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 57 remaining) [2024-11-24 00:43:39,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 57 remaining) [2024-11-24 00:43:39,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 57 remaining) [2024-11-24 00:43:39,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 57 remaining) [2024-11-24 00:43:39,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 57 remaining) [2024-11-24 00:43:39,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 57 remaining) [2024-11-24 00:43:39,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2024-11-24 00:43:39,767 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:39,767 WARN L246 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:39,767 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2024-11-24 00:43:40,008 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:40,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1918 places, 1919 transitions, 9138 flow [2024-11-24 00:43:41,249 INFO L124 PetriNetUnfolderBase]: 257/3292 cut-off events. [2024-11-24 00:43:41,250 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2024-11-24 00:43:41,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4820 conditions, 3292 events. 257/3292 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9342 event pairs, 0 based on Foata normal form. 0/2878 useless extension candidates. Maximal degree in co-relation 4719. Up to 102 conditions per place. [2024-11-24 00:43:41,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 1918 places, 1919 transitions, 9138 flow [2024-11-24 00:43:41,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 531 places, 432 transitions, 3517 flow [2024-11-24 00:43:41,334 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:41,334 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:41,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-24 00:43:41,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:41,336 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:41,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:41,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:41,336 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:41,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-24 00:43:41,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 181437838, now seen corresponding path program 1 times [2024-11-24 00:43:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823936201] [2024-11-24 00:43:41,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:41,406 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 00:43:41,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:41,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823936201] [2024-11-24 00:43:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823936201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:41,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:41,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037656477] [2024-11-24 00:43:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:41,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:41,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:41,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:41,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1556 out of 1919 [2024-11-24 00:43:41,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 432 transitions, 3517 flow. Second operand has 3 states, 3 states have (on average 1557.3333333333333) internal successors, (4672), 3 states have internal predecessors, (4672), 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 00:43:41,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:41,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1556 of 1919 [2024-11-24 00:43:41,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:42,815 INFO L124 PetriNetUnfolderBase]: 103/2525 cut-off events. [2024-11-24 00:43:42,815 INFO L125 PetriNetUnfolderBase]: For 23376/23376 co-relation queries the response was YES. [2024-11-24 00:43:42,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4369 conditions, 2525 events. 103/2525 cut-off events. For 23376/23376 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6721 event pairs, 51 based on Foata normal form. 52/2368 useless extension candidates. Maximal degree in co-relation 4216. Up to 363 conditions per place. [2024-11-24 00:43:42,860 INFO L140 encePairwiseOnDemand]: 1913/1919 looper letters, 60 selfloop transitions, 2 changer transitions 1/428 dead transitions. [2024-11-24 00:43:42,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 428 transitions, 3633 flow [2024-11-24 00:43:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4734 transitions. [2024-11-24 00:43:42,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822303282959875 [2024-11-24 00:43:42,863 INFO L175 Difference]: Start difference. First operand has 531 places, 432 transitions, 3517 flow. Second operand 3 states and 4734 transitions. [2024-11-24 00:43:42,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 428 transitions, 3633 flow [2024-11-24 00:43:42,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 428 transitions, 1280 flow, removed 1176 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:42,917 INFO L231 Difference]: Finished difference. Result has 531 places, 427 transitions, 1158 flow [2024-11-24 00:43:42,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1919, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=531, PETRI_TRANSITIONS=427} [2024-11-24 00:43:42,918 INFO L279 CegarLoopForPetriNet]: 531 programPoint places, 0 predicate places. [2024-11-24 00:43:42,918 INFO L471 AbstractCegarLoop]: Abstraction has has 531 places, 427 transitions, 1158 flow [2024-11-24 00:43:42,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1557.3333333333333) internal successors, (4672), 3 states have internal predecessors, (4672), 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 00:43:42,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:42,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:42,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2024-11-24 00:43:42,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-24 00:43:42,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:42,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2098756272, now seen corresponding path program 1 times [2024-11-24 00:43:42,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:42,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733796085] [2024-11-24 00:43:42,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:42,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:43,012 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 00:43:43,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:43,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733796085] [2024-11-24 00:43:43,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733796085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:43,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:43,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:43,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123360783] [2024-11-24 00:43:43,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:43,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:43,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:43,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:43,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:43,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1454 out of 1919 [2024-11-24 00:43:43,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 427 transitions, 1158 flow. Second operand has 3 states, 3 states have (on average 1455.0) internal successors, (4365), 3 states have internal predecessors, (4365), 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 00:43:43,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:43,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1454 of 1919 [2024-11-24 00:43:43,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:44,156 INFO L124 PetriNetUnfolderBase]: 52/2266 cut-off events. [2024-11-24 00:43:44,156 INFO L125 PetriNetUnfolderBase]: For 1374/1374 co-relation queries the response was YES. [2024-11-24 00:43:44,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 2266 events. 52/2266 cut-off events. For 1374/1374 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4983 event pairs, 0 based on Foata normal form. 51/2214 useless extension candidates. Maximal degree in co-relation 2762. Up to 260 conditions per place. [2024-11-24 00:43:44,193 INFO L140 encePairwiseOnDemand]: 1913/1919 looper letters, 58 selfloop transitions, 1 changer transitions 24/422 dead transitions. [2024-11-24 00:43:44,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 422 transitions, 1270 flow [2024-11-24 00:43:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4428 transitions. [2024-11-24 00:43:44,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7691505992704534 [2024-11-24 00:43:44,196 INFO L175 Difference]: Start difference. First operand has 531 places, 427 transitions, 1158 flow. Second operand 3 states and 4428 transitions. [2024-11-24 00:43:44,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 422 transitions, 1270 flow [2024-11-24 00:43:44,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 422 transitions, 1266 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:44,202 INFO L231 Difference]: Finished difference. Result has 525 places, 398 transitions, 1096 flow [2024-11-24 00:43:44,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1919, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=525, PETRI_TRANSITIONS=398} [2024-11-24 00:43:44,202 INFO L279 CegarLoopForPetriNet]: 531 programPoint places, -6 predicate places. [2024-11-24 00:43:44,202 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 398 transitions, 1096 flow [2024-11-24 00:43:44,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1455.0) internal successors, (4365), 3 states have internal predecessors, (4365), 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 00:43:44,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:44,203 INFO L206 CegarLoopForPetriNet]: trace histogram [51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:44,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2024-11-24 00:43:44,203 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-24 00:43:44,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:44,208 INFO L85 PathProgramCache]: Analyzing trace with hash -559502277, now seen corresponding path program 1 times [2024-11-24 00:43:44,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:44,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19127173] [2024-11-24 00:43:44,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:44,396 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 00:43:44,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:44,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19127173] [2024-11-24 00:43:44,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19127173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:44,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:44,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:44,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113175593] [2024-11-24 00:43:44,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:44,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:44,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:44,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:44,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:44,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1608 out of 1919 [2024-11-24 00:43:44,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 398 transitions, 1096 flow. Second operand has 4 states, 4 states have (on average 1622.0) internal successors, (6488), 4 states have internal predecessors, (6488), 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 00:43:44,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:44,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1608 of 1919 [2024-11-24 00:43:44,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:44,969 INFO L124 PetriNetUnfolderBase]: 0/1041 cut-off events. [2024-11-24 00:43:44,969 INFO L125 PetriNetUnfolderBase]: For 1373/1373 co-relation queries the response was YES. [2024-11-24 00:43:44,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 1041 events. 0/1041 cut-off events. For 1373/1373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 600 event pairs, 0 based on Foata normal form. 0/1041 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2024-11-24 00:43:44,970 INFO L140 encePairwiseOnDemand]: 1915/1919 looper letters, 54 selfloop transitions, 3 changer transitions 0/397 dead transitions. [2024-11-24 00:43:44,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 397 transitions, 1208 flow [2024-11-24 00:43:44,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6490 transitions. [2024-11-24 00:43:44,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454924439812402 [2024-11-24 00:43:44,974 INFO L175 Difference]: Start difference. First operand has 525 places, 398 transitions, 1096 flow. Second operand 4 states and 6490 transitions. [2024-11-24 00:43:44,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 397 transitions, 1208 flow [2024-11-24 00:43:44,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 397 transitions, 1207 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:44,979 INFO L231 Difference]: Finished difference. Result has 502 places, 397 transitions, 1099 flow [2024-11-24 00:43:44,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1919, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1099, PETRI_PLACES=502, PETRI_TRANSITIONS=397} [2024-11-24 00:43:44,979 INFO L279 CegarLoopForPetriNet]: 531 programPoint places, -29 predicate places. [2024-11-24 00:43:44,979 INFO L471 AbstractCegarLoop]: Abstraction has has 502 places, 397 transitions, 1099 flow [2024-11-24 00:43:44,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1622.0) internal successors, (6488), 4 states have internal predecessors, (6488), 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 00:43:44,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:44,981 INFO L206 CegarLoopForPetriNet]: trace histogram [51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:44,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2024-11-24 00:43:44,981 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-24 00:43:44,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:44,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1288972674, now seen corresponding path program 1 times [2024-11-24 00:43:44,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:44,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41818134] [2024-11-24 00:43:44,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:44,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:45,108 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:45,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:45,601 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-24 00:43:45,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-24 00:43:45,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-24 00:43:45,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-24 00:43:45,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-24 00:43:45,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2024-11-24 00:43:45,604 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:45,604 WARN L246 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:45,604 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2024-11-24 00:43:45,816 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:45,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1955 places, 1956 transitions, 9420 flow [2024-11-24 00:43:47,172 INFO L124 PetriNetUnfolderBase]: 262/3356 cut-off events. [2024-11-24 00:43:47,172 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2024-11-24 00:43:47,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4940 conditions, 3356 events. 262/3356 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9692 event pairs, 0 based on Foata normal form. 0/2934 useless extension candidates. Maximal degree in co-relation 4837. Up to 104 conditions per place. [2024-11-24 00:43:47,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 1955 places, 1956 transitions, 9420 flow [2024-11-24 00:43:47,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 540 places, 439 transitions, 3635 flow [2024-11-24 00:43:47,260 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:47,260 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:47,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-11-24 00:43:47,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:47,262 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:47,262 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:47,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:47,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:47,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-24 00:43:47,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:47,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1407554830, now seen corresponding path program 1 times [2024-11-24 00:43:47,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:47,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570181838] [2024-11-24 00:43:47,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:47,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:47,332 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 00:43:47,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:47,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570181838] [2024-11-24 00:43:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570181838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:47,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:47,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:47,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12299512] [2024-11-24 00:43:47,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:47,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:47,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:47,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:47,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1586 out of 1956 [2024-11-24 00:43:47,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 439 transitions, 3635 flow. Second operand has 3 states, 3 states have (on average 1587.3333333333333) internal successors, (4762), 3 states have internal predecessors, (4762), 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 00:43:47,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:47,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1586 of 1956 [2024-11-24 00:43:47,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:48,691 INFO L124 PetriNetUnfolderBase]: 105/2574 cut-off events. [2024-11-24 00:43:48,691 INFO L125 PetriNetUnfolderBase]: For 24753/24753 co-relation queries the response was YES. [2024-11-24 00:43:48,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4480 conditions, 2574 events. 105/2574 cut-off events. For 24753/24753 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7089 event pairs, 52 based on Foata normal form. 105/2466 useless extension candidates. Maximal degree in co-relation 4326. Up to 370 conditions per place. [2024-11-24 00:43:48,746 INFO L140 encePairwiseOnDemand]: 1950/1956 looper letters, 61 selfloop transitions, 2 changer transitions 1/435 dead transitions. [2024-11-24 00:43:48,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 435 transitions, 3753 flow [2024-11-24 00:43:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:48,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4825 transitions. [2024-11-24 00:43:48,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222563053851397 [2024-11-24 00:43:48,749 INFO L175 Difference]: Start difference. First operand has 540 places, 439 transitions, 3635 flow. Second operand 3 states and 4825 transitions. [2024-11-24 00:43:48,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 435 transitions, 3753 flow [2024-11-24 00:43:48,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 435 transitions, 1302 flow, removed 1225 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:48,794 INFO L231 Difference]: Finished difference. Result has 540 places, 434 transitions, 1178 flow [2024-11-24 00:43:48,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1956, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1178, PETRI_PLACES=540, PETRI_TRANSITIONS=434} [2024-11-24 00:43:48,795 INFO L279 CegarLoopForPetriNet]: 540 programPoint places, 0 predicate places. [2024-11-24 00:43:48,795 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 434 transitions, 1178 flow [2024-11-24 00:43:48,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1587.3333333333333) internal successors, (4762), 3 states have internal predecessors, (4762), 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 00:43:48,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:48,796 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:48,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2024-11-24 00:43:48,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-24 00:43:48,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash 752609524, now seen corresponding path program 1 times [2024-11-24 00:43:48,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:48,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079853439] [2024-11-24 00:43:48,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:48,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:48,871 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 00:43:48,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:48,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079853439] [2024-11-24 00:43:48,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079853439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:48,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:48,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931840695] [2024-11-24 00:43:48,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:48,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:48,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:48,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:48,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:49,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1482 out of 1956 [2024-11-24 00:43:49,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 434 transitions, 1178 flow. Second operand has 3 states, 3 states have (on average 1483.0) internal successors, (4449), 3 states have internal predecessors, (4449), 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 00:43:49,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:49,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1482 of 1956 [2024-11-24 00:43:49,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:50,132 INFO L124 PetriNetUnfolderBase]: 53/2310 cut-off events. [2024-11-24 00:43:50,132 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-24 00:43:50,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2888 conditions, 2310 events. 53/2310 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5238 event pairs, 0 based on Foata normal form. 52/2257 useless extension candidates. Maximal degree in co-relation 2816. Up to 265 conditions per place. [2024-11-24 00:43:50,164 INFO L140 encePairwiseOnDemand]: 1950/1956 looper letters, 59 selfloop transitions, 1 changer transitions 24/429 dead transitions. [2024-11-24 00:43:50,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 429 transitions, 1292 flow [2024-11-24 00:43:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:50,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4513 transitions. [2024-11-24 00:43:50,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690865712338105 [2024-11-24 00:43:50,167 INFO L175 Difference]: Start difference. First operand has 540 places, 434 transitions, 1178 flow. Second operand 3 states and 4513 transitions. [2024-11-24 00:43:50,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 429 transitions, 1292 flow [2024-11-24 00:43:50,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 429 transitions, 1288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:50,172 INFO L231 Difference]: Finished difference. Result has 534 places, 405 transitions, 1116 flow [2024-11-24 00:43:50,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1956, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=534, PETRI_TRANSITIONS=405} [2024-11-24 00:43:50,173 INFO L279 CegarLoopForPetriNet]: 540 programPoint places, -6 predicate places. [2024-11-24 00:43:50,173 INFO L471 AbstractCegarLoop]: Abstraction has has 534 places, 405 transitions, 1116 flow [2024-11-24 00:43:50,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1483.0) internal successors, (4449), 3 states have internal predecessors, (4449), 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 00:43:50,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:50,174 INFO L206 CegarLoopForPetriNet]: trace histogram [52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:50,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2024-11-24 00:43:50,174 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-24 00:43:50,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:50,179 INFO L85 PathProgramCache]: Analyzing trace with hash 148757809, now seen corresponding path program 1 times [2024-11-24 00:43:50,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:50,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420950875] [2024-11-24 00:43:50,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:50,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:50,372 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 00:43:50,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:50,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420950875] [2024-11-24 00:43:50,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420950875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:50,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:50,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:50,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183730705] [2024-11-24 00:43:50,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:50,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:50,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:50,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:50,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:50,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1639 out of 1956 [2024-11-24 00:43:50,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 405 transitions, 1116 flow. Second operand has 4 states, 4 states have (on average 1653.25) internal successors, (6613), 4 states have internal predecessors, (6613), 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 00:43:50,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:50,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1639 of 1956 [2024-11-24 00:43:50,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:51,008 INFO L124 PetriNetUnfolderBase]: 0/1061 cut-off events. [2024-11-24 00:43:51,008 INFO L125 PetriNetUnfolderBase]: For 1426/1426 co-relation queries the response was YES. [2024-11-24 00:43:51,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 1061 events. 0/1061 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 612 event pairs, 0 based on Foata normal form. 0/1061 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2024-11-24 00:43:51,010 INFO L140 encePairwiseOnDemand]: 1952/1956 looper letters, 55 selfloop transitions, 3 changer transitions 0/404 dead transitions. [2024-11-24 00:43:51,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 404 transitions, 1230 flow [2024-11-24 00:43:51,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:51,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6615 transitions. [2024-11-24 00:43:51,013 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454754601226994 [2024-11-24 00:43:51,013 INFO L175 Difference]: Start difference. First operand has 534 places, 405 transitions, 1116 flow. Second operand 4 states and 6615 transitions. [2024-11-24 00:43:51,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 404 transitions, 1230 flow [2024-11-24 00:43:51,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 404 transitions, 1229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:51,019 INFO L231 Difference]: Finished difference. Result has 511 places, 404 transitions, 1119 flow [2024-11-24 00:43:51,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1956, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1119, PETRI_PLACES=511, PETRI_TRANSITIONS=404} [2024-11-24 00:43:51,019 INFO L279 CegarLoopForPetriNet]: 540 programPoint places, -29 predicate places. [2024-11-24 00:43:51,019 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 404 transitions, 1119 flow [2024-11-24 00:43:51,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1653.25) internal successors, (6613), 4 states have internal predecessors, (6613), 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 00:43:51,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:51,020 INFO L206 CegarLoopForPetriNet]: trace histogram [52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:51,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2024-11-24 00:43:51,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-24 00:43:51,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash -697172644, now seen corresponding path program 1 times [2024-11-24 00:43:51,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:51,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864076067] [2024-11-24 00:43:51,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:51,155 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:51,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:51,567 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:51,567 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 59 remaining) [2024-11-24 00:43:51,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2024-11-24 00:43:51,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2024-11-24 00:43:51,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2024-11-24 00:43:51,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2024-11-24 00:43:51,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2024-11-24 00:43:51,570 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:51,571 WARN L246 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:51,571 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2024-11-24 00:43:51,791 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:51,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1992 places, 1993 transitions, 9706 flow [2024-11-24 00:43:53,509 INFO L124 PetriNetUnfolderBase]: 267/3420 cut-off events. [2024-11-24 00:43:53,509 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2024-11-24 00:43:53,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5061 conditions, 3420 events. 267/3420 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10047 event pairs, 0 based on Foata normal form. 0/2990 useless extension candidates. Maximal degree in co-relation 4956. Up to 106 conditions per place. [2024-11-24 00:43:53,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 1992 places, 1993 transitions, 9706 flow [2024-11-24 00:43:53,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 549 places, 446 transitions, 3755 flow [2024-11-24 00:43:53,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:53,584 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:53,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-24 00:43:53,585 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:53,585 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:43:53,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:53,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:53,586 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:53,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-24 00:43:53,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash 54852846, now seen corresponding path program 1 times [2024-11-24 00:43:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:53,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179042254] [2024-11-24 00:43:53,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:53,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:53,665 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 00:43:53,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:53,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179042254] [2024-11-24 00:43:53,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179042254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:53,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:53,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:53,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156303764] [2024-11-24 00:43:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:53,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:53,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:53,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:53,889 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1616 out of 1993 [2024-11-24 00:43:53,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 446 transitions, 3755 flow. Second operand has 3 states, 3 states have (on average 1617.3333333333333) internal successors, (4852), 3 states have internal predecessors, (4852), 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 00:43:53,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:53,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1616 of 1993 [2024-11-24 00:43:53,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:55,344 INFO L124 PetriNetUnfolderBase]: 107/2623 cut-off events. [2024-11-24 00:43:55,345 INFO L125 PetriNetUnfolderBase]: For 26183/26183 co-relation queries the response was YES. [2024-11-24 00:43:55,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4592 conditions, 2623 events. 107/2623 cut-off events. For 26183/26183 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6995 event pairs, 53 based on Foata normal form. 54/2460 useless extension candidates. Maximal degree in co-relation 4437. Up to 377 conditions per place. [2024-11-24 00:43:55,373 INFO L140 encePairwiseOnDemand]: 1987/1993 looper letters, 62 selfloop transitions, 2 changer transitions 1/442 dead transitions. [2024-11-24 00:43:55,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 442 transitions, 3875 flow [2024-11-24 00:43:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4916 transitions. [2024-11-24 00:43:55,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822211072085633 [2024-11-24 00:43:55,376 INFO L175 Difference]: Start difference. First operand has 549 places, 446 transitions, 3755 flow. Second operand 3 states and 4916 transitions. [2024-11-24 00:43:55,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 442 transitions, 3875 flow [2024-11-24 00:43:55,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 442 transitions, 1324 flow, removed 1275 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:55,428 INFO L231 Difference]: Finished difference. Result has 549 places, 441 transitions, 1198 flow [2024-11-24 00:43:55,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1993, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1198, PETRI_PLACES=549, PETRI_TRANSITIONS=441} [2024-11-24 00:43:55,429 INFO L279 CegarLoopForPetriNet]: 549 programPoint places, 0 predicate places. [2024-11-24 00:43:55,429 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 441 transitions, 1198 flow [2024-11-24 00:43:55,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1617.3333333333333) internal successors, (4852), 3 states have internal predecessors, (4852), 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 00:43:55,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:55,429 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:55,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2024-11-24 00:43:55,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-24 00:43:55,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2087921597, now seen corresponding path program 1 times [2024-11-24 00:43:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561324082] [2024-11-24 00:43:55,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:55,504 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 00:43:55,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:55,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561324082] [2024-11-24 00:43:55,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561324082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:55,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:55,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254015622] [2024-11-24 00:43:55,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:55,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:55,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:55,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:55,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:55,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1510 out of 1993 [2024-11-24 00:43:55,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 441 transitions, 1198 flow. Second operand has 3 states, 3 states have (on average 1511.0) internal successors, (4533), 3 states have internal predecessors, (4533), 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 00:43:55,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:55,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1510 of 1993 [2024-11-24 00:43:55,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:56,743 INFO L124 PetriNetUnfolderBase]: 54/2354 cut-off events. [2024-11-24 00:43:56,743 INFO L125 PetriNetUnfolderBase]: For 1481/1481 co-relation queries the response was YES. [2024-11-24 00:43:56,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2943 conditions, 2354 events. 54/2354 cut-off events. For 1481/1481 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5180 event pairs, 0 based on Foata normal form. 53/2300 useless extension candidates. Maximal degree in co-relation 2870. Up to 270 conditions per place. [2024-11-24 00:43:56,772 INFO L140 encePairwiseOnDemand]: 1987/1993 looper letters, 60 selfloop transitions, 1 changer transitions 24/436 dead transitions. [2024-11-24 00:43:56,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 436 transitions, 1314 flow [2024-11-24 00:43:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4598 transitions. [2024-11-24 00:43:56,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690249205552768 [2024-11-24 00:43:56,775 INFO L175 Difference]: Start difference. First operand has 549 places, 441 transitions, 1198 flow. Second operand 3 states and 4598 transitions. [2024-11-24 00:43:56,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 436 transitions, 1314 flow [2024-11-24 00:43:56,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 436 transitions, 1310 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:56,780 INFO L231 Difference]: Finished difference. Result has 543 places, 412 transitions, 1136 flow [2024-11-24 00:43:56,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1993, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1136, PETRI_PLACES=543, PETRI_TRANSITIONS=412} [2024-11-24 00:43:56,780 INFO L279 CegarLoopForPetriNet]: 549 programPoint places, -6 predicate places. [2024-11-24 00:43:56,780 INFO L471 AbstractCegarLoop]: Abstraction has has 543 places, 412 transitions, 1136 flow [2024-11-24 00:43:56,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1511.0) internal successors, (4533), 3 states have internal predecessors, (4533), 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 00:43:56,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:56,781 INFO L206 CegarLoopForPetriNet]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:56,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2024-11-24 00:43:56,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-24 00:43:56,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:56,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1157732208, now seen corresponding path program 1 times [2024-11-24 00:43:56,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:56,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844805892] [2024-11-24 00:43:56,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:56,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:57,107 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 00:43:57,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:57,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844805892] [2024-11-24 00:43:57,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844805892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:57,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:57,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:43:57,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691288879] [2024-11-24 00:43:57,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:57,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:57,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:57,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:57,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:57,263 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1670 out of 1993 [2024-11-24 00:43:57,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 412 transitions, 1136 flow. Second operand has 4 states, 4 states have (on average 1684.5) internal successors, (6738), 4 states have internal predecessors, (6738), 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 00:43:57,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:57,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1670 of 1993 [2024-11-24 00:43:57,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:57,978 INFO L124 PetriNetUnfolderBase]: 0/1081 cut-off events. [2024-11-24 00:43:57,978 INFO L125 PetriNetUnfolderBase]: For 1480/1480 co-relation queries the response was YES. [2024-11-24 00:43:57,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1081 events. 0/1081 cut-off events. For 1480/1480 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 623 event pairs, 0 based on Foata normal form. 0/1081 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2024-11-24 00:43:57,980 INFO L140 encePairwiseOnDemand]: 1989/1993 looper letters, 56 selfloop transitions, 3 changer transitions 0/411 dead transitions. [2024-11-24 00:43:57,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 411 transitions, 1252 flow [2024-11-24 00:43:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:57,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6740 transitions. [2024-11-24 00:43:57,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454591068740592 [2024-11-24 00:43:57,986 INFO L175 Difference]: Start difference. First operand has 543 places, 412 transitions, 1136 flow. Second operand 4 states and 6740 transitions. [2024-11-24 00:43:57,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 411 transitions, 1252 flow [2024-11-24 00:43:57,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 411 transitions, 1251 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:57,994 INFO L231 Difference]: Finished difference. Result has 520 places, 411 transitions, 1139 flow [2024-11-24 00:43:57,994 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1993, PETRI_DIFFERENCE_MINUEND_FLOW=1133, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1139, PETRI_PLACES=520, PETRI_TRANSITIONS=411} [2024-11-24 00:43:57,995 INFO L279 CegarLoopForPetriNet]: 549 programPoint places, -29 predicate places. [2024-11-24 00:43:57,995 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 411 transitions, 1139 flow [2024-11-24 00:43:57,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1684.5) internal successors, (6738), 4 states have internal predecessors, (6738), 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 00:43:57,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:57,997 INFO L206 CegarLoopForPetriNet]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:57,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2024-11-24 00:43:57,997 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-24 00:43:58,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash -745223580, now seen corresponding path program 1 times [2024-11-24 00:43:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:58,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286458474] [2024-11-24 00:43:58,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:58,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:58,299 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:43:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:43:58,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:43:58,867 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2024-11-24 00:43:58,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2024-11-24 00:43:58,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2024-11-24 00:43:58,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2024-11-24 00:43:58,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2024-11-24 00:43:58,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2024-11-24 00:43:58,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2024-11-24 00:43:58,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2024-11-24 00:43:58,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2024-11-24 00:43:58,870 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:43:58,870 WARN L246 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:43:58,870 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2024-11-24 00:43:59,087 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:43:59,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2029 places, 2030 transitions, 9996 flow [2024-11-24 00:44:00,556 INFO L124 PetriNetUnfolderBase]: 272/3484 cut-off events. [2024-11-24 00:44:00,556 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2024-11-24 00:44:00,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5183 conditions, 3484 events. 272/3484 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10105 event pairs, 0 based on Foata normal form. 0/3046 useless extension candidates. Maximal degree in co-relation 5076. Up to 108 conditions per place. [2024-11-24 00:44:00,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 2029 places, 2030 transitions, 9996 flow [2024-11-24 00:44:00,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 558 places, 453 transitions, 3877 flow [2024-11-24 00:44:00,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:00,658 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:00,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-24 00:44:00,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:00,659 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:00,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:00,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:00,660 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:00,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-24 00:44:00,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:00,660 INFO L85 PathProgramCache]: Analyzing trace with hash 418299182, now seen corresponding path program 1 times [2024-11-24 00:44:00,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:00,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68905253] [2024-11-24 00:44:00,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:00,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:00,736 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 00:44:00,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:00,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68905253] [2024-11-24 00:44:00,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68905253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:00,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:00,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:00,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480944384] [2024-11-24 00:44:00,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:00,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:00,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:00,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:00,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1646 out of 2030 [2024-11-24 00:44:00,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 453 transitions, 3877 flow. Second operand has 3 states, 3 states have (on average 1647.3333333333333) internal successors, (4942), 3 states have internal predecessors, (4942), 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 00:44:00,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:00,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1646 of 2030 [2024-11-24 00:44:00,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:02,238 INFO L124 PetriNetUnfolderBase]: 109/2672 cut-off events. [2024-11-24 00:44:02,238 INFO L125 PetriNetUnfolderBase]: For 27667/27667 co-relation queries the response was YES. [2024-11-24 00:44:02,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4705 conditions, 2672 events. 109/2672 cut-off events. For 27667/27667 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7157 event pairs, 54 based on Foata normal form. 55/2506 useless extension candidates. Maximal degree in co-relation 4549. Up to 384 conditions per place. [2024-11-24 00:44:02,302 INFO L140 encePairwiseOnDemand]: 2024/2030 looper letters, 63 selfloop transitions, 2 changer transitions 1/449 dead transitions. [2024-11-24 00:44:02,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 449 transitions, 3999 flow [2024-11-24 00:44:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:02,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5007 transitions. [2024-11-24 00:44:02,306 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822167487684729 [2024-11-24 00:44:02,306 INFO L175 Difference]: Start difference. First operand has 558 places, 453 transitions, 3877 flow. Second operand 3 states and 5007 transitions. [2024-11-24 00:44:02,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 449 transitions, 3999 flow [2024-11-24 00:44:02,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 449 transitions, 1346 flow, removed 1326 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:02,372 INFO L231 Difference]: Finished difference. Result has 558 places, 448 transitions, 1218 flow [2024-11-24 00:44:02,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2030, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1218, PETRI_PLACES=558, PETRI_TRANSITIONS=448} [2024-11-24 00:44:02,373 INFO L279 CegarLoopForPetriNet]: 558 programPoint places, 0 predicate places. [2024-11-24 00:44:02,373 INFO L471 AbstractCegarLoop]: Abstraction has has 558 places, 448 transitions, 1218 flow [2024-11-24 00:44:02,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1647.3333333333333) internal successors, (4942), 3 states have internal predecessors, (4942), 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 00:44:02,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:02,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:02,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2024-11-24 00:44:02,374 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-24 00:44:02,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:02,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1907179947, now seen corresponding path program 1 times [2024-11-24 00:44:02,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:02,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633805316] [2024-11-24 00:44:02,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:02,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:02,457 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 00:44:02,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:02,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633805316] [2024-11-24 00:44:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633805316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:02,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126138780] [2024-11-24 00:44:02,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:02,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:02,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:02,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:02,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:02,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1538 out of 2030 [2024-11-24 00:44:02,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 448 transitions, 1218 flow. Second operand has 3 states, 3 states have (on average 1539.0) internal successors, (4617), 3 states have internal predecessors, (4617), 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 00:44:02,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:02,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1538 of 2030 [2024-11-24 00:44:02,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:03,849 INFO L124 PetriNetUnfolderBase]: 55/2398 cut-off events. [2024-11-24 00:44:03,849 INFO L125 PetriNetUnfolderBase]: For 1536/1536 co-relation queries the response was YES. [2024-11-24 00:44:03,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2998 conditions, 2398 events. 55/2398 cut-off events. For 1536/1536 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5280 event pairs, 0 based on Foata normal form. 54/2343 useless extension candidates. Maximal degree in co-relation 2924. Up to 275 conditions per place. [2024-11-24 00:44:03,893 INFO L140 encePairwiseOnDemand]: 2024/2030 looper letters, 61 selfloop transitions, 1 changer transitions 24/443 dead transitions. [2024-11-24 00:44:03,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 443 transitions, 1336 flow [2024-11-24 00:44:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4683 transitions. [2024-11-24 00:44:03,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7689655172413793 [2024-11-24 00:44:03,897 INFO L175 Difference]: Start difference. First operand has 558 places, 448 transitions, 1218 flow. Second operand 3 states and 4683 transitions. [2024-11-24 00:44:03,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 443 transitions, 1336 flow [2024-11-24 00:44:03,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 443 transitions, 1332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:03,903 INFO L231 Difference]: Finished difference. Result has 552 places, 419 transitions, 1156 flow [2024-11-24 00:44:03,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2030, PETRI_DIFFERENCE_MINUEND_FLOW=1204, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1156, PETRI_PLACES=552, PETRI_TRANSITIONS=419} [2024-11-24 00:44:03,903 INFO L279 CegarLoopForPetriNet]: 558 programPoint places, -6 predicate places. [2024-11-24 00:44:03,904 INFO L471 AbstractCegarLoop]: Abstraction has has 552 places, 419 transitions, 1156 flow [2024-11-24 00:44:03,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1539.0) internal successors, (4617), 3 states have internal predecessors, (4617), 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 00:44:03,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:03,904 INFO L206 CegarLoopForPetriNet]: trace histogram [54, 54, 54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:03,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2024-11-24 00:44:03,904 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-24 00:44:03,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:03,911 INFO L85 PathProgramCache]: Analyzing trace with hash 664562872, now seen corresponding path program 1 times [2024-11-24 00:44:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:03,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766745236] [2024-11-24 00:44:03,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:03,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:04,249 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 00:44:04,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:04,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766745236] [2024-11-24 00:44:04,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766745236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:04,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:04,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:04,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852885111] [2024-11-24 00:44:04,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:04,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:04,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:04,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:04,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:04,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 2030 [2024-11-24 00:44:04,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 419 transitions, 1156 flow. Second operand has 4 states, 4 states have (on average 1715.75) internal successors, (6863), 4 states have internal predecessors, (6863), 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 00:44:04,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:04,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 2030 [2024-11-24 00:44:04,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:05,035 INFO L124 PetriNetUnfolderBase]: 0/1101 cut-off events. [2024-11-24 00:44:05,035 INFO L125 PetriNetUnfolderBase]: For 1535/1535 co-relation queries the response was YES. [2024-11-24 00:44:05,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 1101 events. 0/1101 cut-off events. For 1535/1535 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 636 event pairs, 0 based on Foata normal form. 0/1101 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2024-11-24 00:44:05,036 INFO L140 encePairwiseOnDemand]: 2026/2030 looper letters, 57 selfloop transitions, 3 changer transitions 0/418 dead transitions. [2024-11-24 00:44:05,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 418 transitions, 1274 flow [2024-11-24 00:44:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6865 transitions. [2024-11-24 00:44:05,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454433497536946 [2024-11-24 00:44:05,042 INFO L175 Difference]: Start difference. First operand has 552 places, 419 transitions, 1156 flow. Second operand 4 states and 6865 transitions. [2024-11-24 00:44:05,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 418 transitions, 1274 flow [2024-11-24 00:44:05,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 418 transitions, 1273 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:05,052 INFO L231 Difference]: Finished difference. Result has 529 places, 418 transitions, 1159 flow [2024-11-24 00:44:05,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2030, PETRI_DIFFERENCE_MINUEND_FLOW=1153, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1159, PETRI_PLACES=529, PETRI_TRANSITIONS=418} [2024-11-24 00:44:05,053 INFO L279 CegarLoopForPetriNet]: 558 programPoint places, -29 predicate places. [2024-11-24 00:44:05,053 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 418 transitions, 1159 flow [2024-11-24 00:44:05,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1715.75) internal successors, (6863), 4 states have internal predecessors, (6863), 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 00:44:05,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:05,055 INFO L206 CegarLoopForPetriNet]: trace histogram [54, 54, 54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:05,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2024-11-24 00:44:05,056 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-24 00:44:05,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash -851789638, now seen corresponding path program 1 times [2024-11-24 00:44:05,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:05,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638234289] [2024-11-24 00:44:05,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:05,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:05,278 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:05,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:44:05,916 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-11-24 00:44:05,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-11-24 00:44:05,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-11-24 00:44:05,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-11-24 00:44:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-11-24 00:44:05,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2024-11-24 00:44:05,919 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:44:05,919 WARN L246 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:44:05,920 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2024-11-24 00:44:06,141 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:44:06,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2066 places, 2067 transitions, 10290 flow [2024-11-24 00:44:07,843 INFO L124 PetriNetUnfolderBase]: 277/3548 cut-off events. [2024-11-24 00:44:07,843 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2024-11-24 00:44:07,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5306 conditions, 3548 events. 277/3548 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10185 event pairs, 0 based on Foata normal form. 0/3102 useless extension candidates. Maximal degree in co-relation 5197. Up to 110 conditions per place. [2024-11-24 00:44:07,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 2066 places, 2067 transitions, 10290 flow [2024-11-24 00:44:07,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 567 places, 460 transitions, 4001 flow [2024-11-24 00:44:07,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:07,952 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:07,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-24 00:44:07,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:07,954 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:07,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:07,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:07,954 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:07,954 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-24 00:44:07,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1797073458, now seen corresponding path program 1 times [2024-11-24 00:44:07,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:07,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100552976] [2024-11-24 00:44:07,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:07,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:08,032 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 00:44:08,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:08,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100552976] [2024-11-24 00:44:08,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100552976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:08,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:08,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:08,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087403014] [2024-11-24 00:44:08,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:08,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:08,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:08,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:08,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:08,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1676 out of 2067 [2024-11-24 00:44:08,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 460 transitions, 4001 flow. Second operand has 3 states, 3 states have (on average 1677.3333333333333) internal successors, (5032), 3 states have internal predecessors, (5032), 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 00:44:08,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:08,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1676 of 2067 [2024-11-24 00:44:08,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:09,829 INFO L124 PetriNetUnfolderBase]: 111/2721 cut-off events. [2024-11-24 00:44:09,829 INFO L125 PetriNetUnfolderBase]: For 29206/29206 co-relation queries the response was YES. [2024-11-24 00:44:09,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4819 conditions, 2721 events. 111/2721 cut-off events. For 29206/29206 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7543 event pairs, 55 based on Foata normal form. 111/2607 useless extension candidates. Maximal degree in co-relation 4662. Up to 391 conditions per place. [2024-11-24 00:44:09,902 INFO L140 encePairwiseOnDemand]: 2061/2067 looper letters, 64 selfloop transitions, 2 changer transitions 1/456 dead transitions. [2024-11-24 00:44:09,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 456 transitions, 4125 flow [2024-11-24 00:44:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:09,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5098 transitions. [2024-11-24 00:44:09,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8221254636348976 [2024-11-24 00:44:09,906 INFO L175 Difference]: Start difference. First operand has 567 places, 460 transitions, 4001 flow. Second operand 3 states and 5098 transitions. [2024-11-24 00:44:09,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 456 transitions, 4125 flow [2024-11-24 00:44:09,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 456 transitions, 1368 flow, removed 1378 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:09,962 INFO L231 Difference]: Finished difference. Result has 567 places, 455 transitions, 1238 flow [2024-11-24 00:44:09,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2067, PETRI_DIFFERENCE_MINUEND_FLOW=1236, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1238, PETRI_PLACES=567, PETRI_TRANSITIONS=455} [2024-11-24 00:44:09,962 INFO L279 CegarLoopForPetriNet]: 567 programPoint places, 0 predicate places. [2024-11-24 00:44:09,962 INFO L471 AbstractCegarLoop]: Abstraction has has 567 places, 455 transitions, 1238 flow [2024-11-24 00:44:09,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1677.3333333333333) internal successors, (5032), 3 states have internal predecessors, (5032), 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 00:44:09,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:09,963 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:09,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2024-11-24 00:44:09,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-24 00:44:09,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash 210384574, now seen corresponding path program 1 times [2024-11-24 00:44:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:09,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698104172] [2024-11-24 00:44:09,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:09,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:10,044 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 00:44:10,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:10,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698104172] [2024-11-24 00:44:10,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698104172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:10,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:10,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:10,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319827258] [2024-11-24 00:44:10,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:10,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:10,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:10,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:10,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:10,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1566 out of 2067 [2024-11-24 00:44:10,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 455 transitions, 1238 flow. Second operand has 3 states, 3 states have (on average 1567.0) internal successors, (4701), 3 states have internal predecessors, (4701), 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 00:44:10,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:10,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1566 of 2067 [2024-11-24 00:44:10,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:11,917 INFO L124 PetriNetUnfolderBase]: 56/2442 cut-off events. [2024-11-24 00:44:11,918 INFO L125 PetriNetUnfolderBase]: For 1592/1592 co-relation queries the response was YES. [2024-11-24 00:44:11,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3053 conditions, 2442 events. 56/2442 cut-off events. For 1592/1592 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5543 event pairs, 0 based on Foata normal form. 55/2386 useless extension candidates. Maximal degree in co-relation 2978. Up to 280 conditions per place. [2024-11-24 00:44:11,940 INFO L140 encePairwiseOnDemand]: 2061/2067 looper letters, 62 selfloop transitions, 1 changer transitions 24/450 dead transitions. [2024-11-24 00:44:11,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 450 transitions, 1358 flow [2024-11-24 00:44:11,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4768 transitions. [2024-11-24 00:44:11,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7689082406063538 [2024-11-24 00:44:11,943 INFO L175 Difference]: Start difference. First operand has 567 places, 455 transitions, 1238 flow. Second operand 3 states and 4768 transitions. [2024-11-24 00:44:11,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 450 transitions, 1358 flow [2024-11-24 00:44:11,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 450 transitions, 1354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:11,949 INFO L231 Difference]: Finished difference. Result has 561 places, 426 transitions, 1176 flow [2024-11-24 00:44:11,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2067, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1176, PETRI_PLACES=561, PETRI_TRANSITIONS=426} [2024-11-24 00:44:11,950 INFO L279 CegarLoopForPetriNet]: 567 programPoint places, -6 predicate places. [2024-11-24 00:44:11,950 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 426 transitions, 1176 flow [2024-11-24 00:44:11,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1567.0) internal successors, (4701), 3 states have internal predecessors, (4701), 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 00:44:11,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:11,951 INFO L206 CegarLoopForPetriNet]: trace histogram [55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:11,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2024-11-24 00:44:11,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-24 00:44:11,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:11,958 INFO L85 PathProgramCache]: Analyzing trace with hash 972105737, now seen corresponding path program 1 times [2024-11-24 00:44:11,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:11,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233046550] [2024-11-24 00:44:11,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:12,214 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 00:44:12,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:12,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233046550] [2024-11-24 00:44:12,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233046550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:12,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:12,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:12,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123587940] [2024-11-24 00:44:12,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:12,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:12,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:12,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:12,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:12,403 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1732 out of 2067 [2024-11-24 00:44:12,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 426 transitions, 1176 flow. Second operand has 4 states, 4 states have (on average 1747.0) internal successors, (6988), 4 states have internal predecessors, (6988), 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 00:44:12,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:12,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1732 of 2067 [2024-11-24 00:44:12,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:13,060 INFO L124 PetriNetUnfolderBase]: 0/1121 cut-off events. [2024-11-24 00:44:13,060 INFO L125 PetriNetUnfolderBase]: For 1591/1591 co-relation queries the response was YES. [2024-11-24 00:44:13,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 1121 events. 0/1121 cut-off events. For 1591/1591 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 647 event pairs, 0 based on Foata normal form. 0/1121 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2024-11-24 00:44:13,061 INFO L140 encePairwiseOnDemand]: 2063/2067 looper letters, 58 selfloop transitions, 3 changer transitions 0/425 dead transitions. [2024-11-24 00:44:13,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 425 transitions, 1296 flow [2024-11-24 00:44:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:13,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6990 transitions. [2024-11-24 00:44:13,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454281567489115 [2024-11-24 00:44:13,065 INFO L175 Difference]: Start difference. First operand has 561 places, 426 transitions, 1176 flow. Second operand 4 states and 6990 transitions. [2024-11-24 00:44:13,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 425 transitions, 1296 flow [2024-11-24 00:44:13,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 425 transitions, 1295 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:13,071 INFO L231 Difference]: Finished difference. Result has 538 places, 425 transitions, 1179 flow [2024-11-24 00:44:13,071 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2067, PETRI_DIFFERENCE_MINUEND_FLOW=1173, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1179, PETRI_PLACES=538, PETRI_TRANSITIONS=425} [2024-11-24 00:44:13,071 INFO L279 CegarLoopForPetriNet]: 567 programPoint places, -29 predicate places. [2024-11-24 00:44:13,071 INFO L471 AbstractCegarLoop]: Abstraction has has 538 places, 425 transitions, 1179 flow [2024-11-24 00:44:13,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1747.0) internal successors, (6988), 4 states have internal predecessors, (6988), 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 00:44:13,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:13,072 INFO L206 CegarLoopForPetriNet]: trace histogram [55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:13,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2024-11-24 00:44:13,072 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-24 00:44:13,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 159314046, now seen corresponding path program 1 times [2024-11-24 00:44:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:13,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549298978] [2024-11-24 00:44:13,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:13,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:13,221 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:13,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:44:13,811 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (61 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 62 remaining) [2024-11-24 00:44:13,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2024-11-24 00:44:13,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2024-11-24 00:44:13,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2024-11-24 00:44:13,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2024-11-24 00:44:13,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2024-11-24 00:44:13,814 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:44:13,815 WARN L246 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:44:13,815 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2024-11-24 00:44:14,050 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:44:14,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2103 places, 2104 transitions, 10588 flow [2024-11-24 00:44:15,824 INFO L124 PetriNetUnfolderBase]: 282/3612 cut-off events. [2024-11-24 00:44:15,824 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2024-11-24 00:44:15,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5430 conditions, 3612 events. 282/3612 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10562 event pairs, 0 based on Foata normal form. 0/3158 useless extension candidates. Maximal degree in co-relation 5319. Up to 112 conditions per place. [2024-11-24 00:44:15,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 2103 places, 2104 transitions, 10588 flow [2024-11-24 00:44:15,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 576 places, 467 transitions, 4127 flow [2024-11-24 00:44:15,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:15,928 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:15,928 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-24 00:44:15,930 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:15,930 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:15,930 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:15,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:15,930 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:15,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-24 00:44:15,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:15,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1998669518, now seen corresponding path program 1 times [2024-11-24 00:44:15,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:15,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039393622] [2024-11-24 00:44:15,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:15,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:16,011 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 00:44:16,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:16,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039393622] [2024-11-24 00:44:16,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039393622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:16,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:16,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213798474] [2024-11-24 00:44:16,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:16,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:16,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:16,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:16,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:16,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1706 out of 2104 [2024-11-24 00:44:16,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 467 transitions, 4127 flow. Second operand has 3 states, 3 states have (on average 1707.3333333333333) internal successors, (5122), 3 states have internal predecessors, (5122), 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 00:44:16,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:16,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1706 of 2104 [2024-11-24 00:44:16,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:17,795 INFO L124 PetriNetUnfolderBase]: 113/2770 cut-off events. [2024-11-24 00:44:17,795 INFO L125 PetriNetUnfolderBase]: For 30801/30801 co-relation queries the response was YES. [2024-11-24 00:44:17,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4934 conditions, 2770 events. 113/2770 cut-off events. For 30801/30801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7697 event pairs, 56 based on Foata normal form. 113/2654 useless extension candidates. Maximal degree in co-relation 4776. Up to 398 conditions per place. [2024-11-24 00:44:17,830 INFO L140 encePairwiseOnDemand]: 2098/2104 looper letters, 65 selfloop transitions, 2 changer transitions 1/463 dead transitions. [2024-11-24 00:44:17,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 463 transitions, 4253 flow [2024-11-24 00:44:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5189 transitions. [2024-11-24 00:44:17,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822084917617237 [2024-11-24 00:44:17,833 INFO L175 Difference]: Start difference. First operand has 576 places, 467 transitions, 4127 flow. Second operand 3 states and 5189 transitions. [2024-11-24 00:44:17,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 463 transitions, 4253 flow [2024-11-24 00:44:17,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 463 transitions, 1390 flow, removed 1431 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:17,887 INFO L231 Difference]: Finished difference. Result has 576 places, 462 transitions, 1258 flow [2024-11-24 00:44:17,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2104, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1258, PETRI_PLACES=576, PETRI_TRANSITIONS=462} [2024-11-24 00:44:17,887 INFO L279 CegarLoopForPetriNet]: 576 programPoint places, 0 predicate places. [2024-11-24 00:44:17,887 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 462 transitions, 1258 flow [2024-11-24 00:44:17,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1707.3333333333333) internal successors, (5122), 3 states have internal predecessors, (5122), 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 00:44:17,888 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:17,888 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:17,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2024-11-24 00:44:17,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-24 00:44:17,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1292502774, now seen corresponding path program 1 times [2024-11-24 00:44:17,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:17,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679308117] [2024-11-24 00:44:17,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:17,964 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 00:44:17,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:17,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679308117] [2024-11-24 00:44:17,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679308117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:17,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:17,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:17,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097182195] [2024-11-24 00:44:17,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:17,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:17,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:17,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:17,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:18,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1594 out of 2104 [2024-11-24 00:44:18,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 462 transitions, 1258 flow. Second operand has 3 states, 3 states have (on average 1595.0) internal successors, (4785), 3 states have internal predecessors, (4785), 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 00:44:18,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:18,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1594 of 2104 [2024-11-24 00:44:18,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:19,348 INFO L124 PetriNetUnfolderBase]: 57/2486 cut-off events. [2024-11-24 00:44:19,348 INFO L125 PetriNetUnfolderBase]: For 1649/1649 co-relation queries the response was YES. [2024-11-24 00:44:19,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3108 conditions, 2486 events. 57/2486 cut-off events. For 1649/1649 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5703 event pairs, 0 based on Foata normal form. 56/2429 useless extension candidates. Maximal degree in co-relation 3032. Up to 285 conditions per place. [2024-11-24 00:44:19,385 INFO L140 encePairwiseOnDemand]: 2098/2104 looper letters, 63 selfloop transitions, 1 changer transitions 24/457 dead transitions. [2024-11-24 00:44:19,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 457 transitions, 1380 flow [2024-11-24 00:44:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4853 transitions. [2024-11-24 00:44:19,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7688529784537389 [2024-11-24 00:44:19,388 INFO L175 Difference]: Start difference. First operand has 576 places, 462 transitions, 1258 flow. Second operand 3 states and 4853 transitions. [2024-11-24 00:44:19,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 457 transitions, 1380 flow [2024-11-24 00:44:19,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 570 places, 457 transitions, 1376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:19,394 INFO L231 Difference]: Finished difference. Result has 570 places, 433 transitions, 1196 flow [2024-11-24 00:44:19,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2104, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=570, PETRI_TRANSITIONS=433} [2024-11-24 00:44:19,394 INFO L279 CegarLoopForPetriNet]: 576 programPoint places, -6 predicate places. [2024-11-24 00:44:19,394 INFO L471 AbstractCegarLoop]: Abstraction has has 570 places, 433 transitions, 1196 flow [2024-11-24 00:44:19,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1595.0) internal successors, (4785), 3 states have internal predecessors, (4785), 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 00:44:19,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:19,395 INFO L206 CegarLoopForPetriNet]: trace histogram [56, 56, 56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:19,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2024-11-24 00:44:19,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-24 00:44:19,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1240794909, now seen corresponding path program 1 times [2024-11-24 00:44:19,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:19,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601670769] [2024-11-24 00:44:19,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:19,630 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 00:44:19,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:19,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601670769] [2024-11-24 00:44:19,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601670769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:19,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:19,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:19,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036068865] [2024-11-24 00:44:19,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:19,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:19,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:19,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:19,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:19,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1763 out of 2104 [2024-11-24 00:44:19,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 433 transitions, 1196 flow. Second operand has 4 states, 4 states have (on average 1778.25) internal successors, (7113), 4 states have internal predecessors, (7113), 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 00:44:19,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:19,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1763 of 2104 [2024-11-24 00:44:19,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:20,340 INFO L124 PetriNetUnfolderBase]: 0/1141 cut-off events. [2024-11-24 00:44:20,340 INFO L125 PetriNetUnfolderBase]: For 1648/1648 co-relation queries the response was YES. [2024-11-24 00:44:20,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1141 events. 0/1141 cut-off events. For 1648/1648 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 660 event pairs, 0 based on Foata normal form. 0/1141 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2024-11-24 00:44:20,342 INFO L140 encePairwiseOnDemand]: 2100/2104 looper letters, 59 selfloop transitions, 3 changer transitions 0/432 dead transitions. [2024-11-24 00:44:20,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 432 transitions, 1318 flow [2024-11-24 00:44:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:20,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7115 transitions. [2024-11-24 00:44:20,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454134980988594 [2024-11-24 00:44:20,346 INFO L175 Difference]: Start difference. First operand has 570 places, 433 transitions, 1196 flow. Second operand 4 states and 7115 transitions. [2024-11-24 00:44:20,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 432 transitions, 1318 flow [2024-11-24 00:44:20,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 432 transitions, 1317 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:20,352 INFO L231 Difference]: Finished difference. Result has 547 places, 432 transitions, 1199 flow [2024-11-24 00:44:20,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2104, PETRI_DIFFERENCE_MINUEND_FLOW=1193, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1199, PETRI_PLACES=547, PETRI_TRANSITIONS=432} [2024-11-24 00:44:20,352 INFO L279 CegarLoopForPetriNet]: 576 programPoint places, -29 predicate places. [2024-11-24 00:44:20,352 INFO L471 AbstractCegarLoop]: Abstraction has has 547 places, 432 transitions, 1199 flow [2024-11-24 00:44:20,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1778.25) internal successors, (7113), 4 states have internal predecessors, (7113), 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 00:44:20,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:20,354 INFO L206 CegarLoopForPetriNet]: trace histogram [56, 56, 56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:20,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2024-11-24 00:44:20,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-24 00:44:20,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1716623824, now seen corresponding path program 1 times [2024-11-24 00:44:20,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:20,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840532682] [2024-11-24 00:44:20,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:20,573 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:21,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:44:21,163 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2024-11-24 00:44:21,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2024-11-24 00:44:21,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2024-11-24 00:44:21,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2024-11-24 00:44:21,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2024-11-24 00:44:21,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2024-11-24 00:44:21,166 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:44:21,167 WARN L246 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:44:21,167 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2024-11-24 00:44:21,449 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:44:21,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2140 places, 2141 transitions, 10890 flow [2024-11-24 00:44:23,325 INFO L124 PetriNetUnfolderBase]: 287/3676 cut-off events. [2024-11-24 00:44:23,326 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2024-11-24 00:44:23,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5555 conditions, 3676 events. 287/3676 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10592 event pairs, 0 based on Foata normal form. 0/3214 useless extension candidates. Maximal degree in co-relation 5442. Up to 114 conditions per place. [2024-11-24 00:44:23,393 INFO L82 GeneralOperation]: Start removeDead. Operand has 2140 places, 2141 transitions, 10890 flow [2024-11-24 00:44:23,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 585 places, 474 transitions, 4255 flow [2024-11-24 00:44:23,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:23,412 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:23,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-24 00:44:23,414 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:23,414 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:23,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:23,414 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:23,414 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:23,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-24 00:44:23,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1079373778, now seen corresponding path program 1 times [2024-11-24 00:44:23,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:23,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970986342] [2024-11-24 00:44:23,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:23,506 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 00:44:23,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:23,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970986342] [2024-11-24 00:44:23,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970986342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:23,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:23,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:23,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008117972] [2024-11-24 00:44:23,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:23,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:23,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:23,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:23,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:23,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 2141 [2024-11-24 00:44:23,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 474 transitions, 4255 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 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 00:44:23,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:23,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 2141 [2024-11-24 00:44:23,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:25,315 INFO L124 PetriNetUnfolderBase]: 115/2819 cut-off events. [2024-11-24 00:44:25,315 INFO L125 PetriNetUnfolderBase]: For 32453/32453 co-relation queries the response was YES. [2024-11-24 00:44:25,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5050 conditions, 2819 events. 115/2819 cut-off events. For 32453/32453 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7834 event pairs, 57 based on Foata normal form. 115/2701 useless extension candidates. Maximal degree in co-relation 4891. Up to 405 conditions per place. [2024-11-24 00:44:25,384 INFO L140 encePairwiseOnDemand]: 2135/2141 looper letters, 66 selfloop transitions, 2 changer transitions 1/470 dead transitions. [2024-11-24 00:44:25,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 586 places, 470 transitions, 4383 flow [2024-11-24 00:44:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5280 transitions. [2024-11-24 00:44:25,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8220457730032695 [2024-11-24 00:44:25,392 INFO L175 Difference]: Start difference. First operand has 585 places, 474 transitions, 4255 flow. Second operand 3 states and 5280 transitions. [2024-11-24 00:44:25,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 586 places, 470 transitions, 4383 flow [2024-11-24 00:44:25,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 470 transitions, 1412 flow, removed 1485 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:25,512 INFO L231 Difference]: Finished difference. Result has 585 places, 469 transitions, 1278 flow [2024-11-24 00:44:25,512 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2141, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=583, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1278, PETRI_PLACES=585, PETRI_TRANSITIONS=469} [2024-11-24 00:44:25,512 INFO L279 CegarLoopForPetriNet]: 585 programPoint places, 0 predicate places. [2024-11-24 00:44:25,512 INFO L471 AbstractCegarLoop]: Abstraction has has 585 places, 469 transitions, 1278 flow [2024-11-24 00:44:25,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 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 00:44:25,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:25,513 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:25,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2024-11-24 00:44:25,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-24 00:44:25,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash 858567251, now seen corresponding path program 1 times [2024-11-24 00:44:25,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:25,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039897348] [2024-11-24 00:44:25,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:25,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:25,649 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 00:44:25,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:25,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039897348] [2024-11-24 00:44:25,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039897348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:25,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:25,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:25,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203416879] [2024-11-24 00:44:25,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:25,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:25,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:25,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:25,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:25,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1622 out of 2141 [2024-11-24 00:44:25,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 469 transitions, 1278 flow. Second operand has 3 states, 3 states have (on average 1623.0) internal successors, (4869), 3 states have internal predecessors, (4869), 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 00:44:25,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:25,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1622 of 2141 [2024-11-24 00:44:25,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:27,556 INFO L124 PetriNetUnfolderBase]: 58/2530 cut-off events. [2024-11-24 00:44:27,556 INFO L125 PetriNetUnfolderBase]: For 1707/1707 co-relation queries the response was YES. [2024-11-24 00:44:27,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 2530 events. 58/2530 cut-off events. For 1707/1707 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5747 event pairs, 0 based on Foata normal form. 57/2472 useless extension candidates. Maximal degree in co-relation 3086. Up to 290 conditions per place. [2024-11-24 00:44:27,609 INFO L140 encePairwiseOnDemand]: 2135/2141 looper letters, 64 selfloop transitions, 1 changer transitions 24/464 dead transitions. [2024-11-24 00:44:27,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 464 transitions, 1402 flow [2024-11-24 00:44:27,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:27,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4938 transitions. [2024-11-24 00:44:27,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7687996263428305 [2024-11-24 00:44:27,613 INFO L175 Difference]: Start difference. First operand has 585 places, 469 transitions, 1278 flow. Second operand 3 states and 4938 transitions. [2024-11-24 00:44:27,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 464 transitions, 1402 flow [2024-11-24 00:44:27,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 464 transitions, 1398 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:27,621 INFO L231 Difference]: Finished difference. Result has 579 places, 440 transitions, 1216 flow [2024-11-24 00:44:27,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2141, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1216, PETRI_PLACES=579, PETRI_TRANSITIONS=440} [2024-11-24 00:44:27,622 INFO L279 CegarLoopForPetriNet]: 585 programPoint places, -6 predicate places. [2024-11-24 00:44:27,622 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 440 transitions, 1216 flow [2024-11-24 00:44:27,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1623.0) internal successors, (4869), 3 states have internal predecessors, (4869), 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 00:44:27,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:27,623 INFO L206 CegarLoopForPetriNet]: trace histogram [57, 57, 57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:27,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2024-11-24 00:44:27,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-24 00:44:27,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash 343760294, now seen corresponding path program 1 times [2024-11-24 00:44:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:27,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436983848] [2024-11-24 00:44:27,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:27,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:28,161 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 00:44:28,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:28,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436983848] [2024-11-24 00:44:28,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436983848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:28,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177898138] [2024-11-24 00:44:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:28,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:28,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:28,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:28,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1794 out of 2141 [2024-11-24 00:44:28,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 440 transitions, 1216 flow. Second operand has 4 states, 4 states have (on average 1809.5) internal successors, (7238), 4 states have internal predecessors, (7238), 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 00:44:28,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:28,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1794 of 2141 [2024-11-24 00:44:28,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:29,192 INFO L124 PetriNetUnfolderBase]: 0/1161 cut-off events. [2024-11-24 00:44:29,193 INFO L125 PetriNetUnfolderBase]: For 1706/1706 co-relation queries the response was YES. [2024-11-24 00:44:29,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1161 events. 0/1161 cut-off events. For 1706/1706 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 671 event pairs, 0 based on Foata normal form. 0/1161 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2024-11-24 00:44:29,194 INFO L140 encePairwiseOnDemand]: 2137/2141 looper letters, 60 selfloop transitions, 3 changer transitions 0/439 dead transitions. [2024-11-24 00:44:29,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 439 transitions, 1340 flow [2024-11-24 00:44:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7240 transitions. [2024-11-24 00:44:29,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453993460999533 [2024-11-24 00:44:29,202 INFO L175 Difference]: Start difference. First operand has 579 places, 440 transitions, 1216 flow. Second operand 4 states and 7240 transitions. [2024-11-24 00:44:29,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 439 transitions, 1340 flow [2024-11-24 00:44:29,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 439 transitions, 1339 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:29,210 INFO L231 Difference]: Finished difference. Result has 556 places, 439 transitions, 1219 flow [2024-11-24 00:44:29,210 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2141, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1219, PETRI_PLACES=556, PETRI_TRANSITIONS=439} [2024-11-24 00:44:29,210 INFO L279 CegarLoopForPetriNet]: 585 programPoint places, -29 predicate places. [2024-11-24 00:44:29,210 INFO L471 AbstractCegarLoop]: Abstraction has has 556 places, 439 transitions, 1219 flow [2024-11-24 00:44:29,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1809.5) internal successors, (7238), 4 states have internal predecessors, (7238), 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 00:44:29,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:29,211 INFO L206 CegarLoopForPetriNet]: trace histogram [57, 57, 57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:29,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2024-11-24 00:44:29,212 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-24 00:44:29,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:29,224 INFO L85 PathProgramCache]: Analyzing trace with hash -626008880, now seen corresponding path program 1 times [2024-11-24 00:44:29,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:29,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050886618] [2024-11-24 00:44:29,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:29,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:29,476 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:30,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:44:30,281 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:44:30,281 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (63 of 64 remaining) [2024-11-24 00:44:30,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2024-11-24 00:44:30,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2024-11-24 00:44:30,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2024-11-24 00:44:30,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2024-11-24 00:44:30,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2024-11-24 00:44:30,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2024-11-24 00:44:30,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2024-11-24 00:44:30,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2024-11-24 00:44:30,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2024-11-24 00:44:30,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2024-11-24 00:44:30,285 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:44:30,285 WARN L246 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:44:30,285 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2024-11-24 00:44:30,647 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:44:30,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2177 places, 2178 transitions, 11196 flow [2024-11-24 00:44:32,399 INFO L124 PetriNetUnfolderBase]: 292/3740 cut-off events. [2024-11-24 00:44:32,399 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2024-11-24 00:44:32,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5681 conditions, 3740 events. 292/3740 cut-off events. For 32452/32452 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10697 event pairs, 0 based on Foata normal form. 0/3270 useless extension candidates. Maximal degree in co-relation 5566. Up to 116 conditions per place. [2024-11-24 00:44:32,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 2177 places, 2178 transitions, 11196 flow [2024-11-24 00:44:32,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 594 places, 481 transitions, 4385 flow [2024-11-24 00:44:32,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:32,520 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:32,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-11-24 00:44:32,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:32,523 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:32,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:32,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:32,523 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:32,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-24 00:44:32,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:32,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1853698542, now seen corresponding path program 1 times [2024-11-24 00:44:32,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:32,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954921447] [2024-11-24 00:44:32,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:32,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:32,628 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 00:44:32,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:32,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954921447] [2024-11-24 00:44:32,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954921447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:32,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:32,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323668602] [2024-11-24 00:44:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:32,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:32,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:32,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:32,844 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1766 out of 2178 [2024-11-24 00:44:32,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 481 transitions, 4385 flow. Second operand has 3 states, 3 states have (on average 1767.3333333333333) internal successors, (5302), 3 states have internal predecessors, (5302), 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 00:44:32,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:32,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1766 of 2178 [2024-11-24 00:44:32,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:34,349 INFO L124 PetriNetUnfolderBase]: 117/2868 cut-off events. [2024-11-24 00:44:34,349 INFO L125 PetriNetUnfolderBase]: For 34163/34163 co-relation queries the response was YES. [2024-11-24 00:44:34,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5167 conditions, 2868 events. 117/2868 cut-off events. For 34163/34163 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 7662 event pairs, 58 based on Foata normal form. 59/2690 useless extension candidates. Maximal degree in co-relation 5007. Up to 412 conditions per place. [2024-11-24 00:44:34,424 INFO L140 encePairwiseOnDemand]: 2172/2178 looper letters, 67 selfloop transitions, 2 changer transitions 1/477 dead transitions. [2024-11-24 00:44:34,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 477 transitions, 4515 flow [2024-11-24 00:44:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5371 transitions. [2024-11-24 00:44:34,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8220079583715947 [2024-11-24 00:44:34,429 INFO L175 Difference]: Start difference. First operand has 594 places, 481 transitions, 4385 flow. Second operand 3 states and 5371 transitions. [2024-11-24 00:44:34,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 477 transitions, 4515 flow [2024-11-24 00:44:34,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 477 transitions, 1434 flow, removed 1540 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:34,515 INFO L231 Difference]: Finished difference. Result has 594 places, 476 transitions, 1298 flow [2024-11-24 00:44:34,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2178, PETRI_DIFFERENCE_MINUEND_FLOW=1296, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1298, PETRI_PLACES=594, PETRI_TRANSITIONS=476} [2024-11-24 00:44:34,515 INFO L279 CegarLoopForPetriNet]: 594 programPoint places, 0 predicate places. [2024-11-24 00:44:34,515 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 476 transitions, 1298 flow [2024-11-24 00:44:34,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1767.3333333333333) internal successors, (5302), 3 states have internal predecessors, (5302), 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 00:44:34,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:34,516 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:34,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2024-11-24 00:44:34,516 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-24 00:44:34,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:34,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1091421995, now seen corresponding path program 1 times [2024-11-24 00:44:34,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:34,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244669113] [2024-11-24 00:44:34,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:34,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:34,610 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 00:44:34,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:34,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244669113] [2024-11-24 00:44:34,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244669113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:34,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:34,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:34,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038753135] [2024-11-24 00:44:34,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:34,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:34,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:34,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:34,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:34,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1650 out of 2178 [2024-11-24 00:44:34,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 476 transitions, 1298 flow. Second operand has 3 states, 3 states have (on average 1651.0) internal successors, (4953), 3 states have internal predecessors, (4953), 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 00:44:34,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:34,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1650 of 2178 [2024-11-24 00:44:34,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:36,236 INFO L124 PetriNetUnfolderBase]: 59/2574 cut-off events. [2024-11-24 00:44:36,236 INFO L125 PetriNetUnfolderBase]: For 1766/1766 co-relation queries the response was YES. [2024-11-24 00:44:36,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3218 conditions, 2574 events. 59/2574 cut-off events. For 1766/1766 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5733 event pairs, 0 based on Foata normal form. 58/2515 useless extension candidates. Maximal degree in co-relation 3140. Up to 295 conditions per place. [2024-11-24 00:44:36,291 INFO L140 encePairwiseOnDemand]: 2172/2178 looper letters, 65 selfloop transitions, 1 changer transitions 24/471 dead transitions. [2024-11-24 00:44:36,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 471 transitions, 1424 flow [2024-11-24 00:44:36,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:36,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5023 transitions. [2024-11-24 00:44:36,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7687480869299052 [2024-11-24 00:44:36,295 INFO L175 Difference]: Start difference. First operand has 594 places, 476 transitions, 1298 flow. Second operand 3 states and 5023 transitions. [2024-11-24 00:44:36,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 471 transitions, 1424 flow [2024-11-24 00:44:36,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 471 transitions, 1420 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:36,302 INFO L231 Difference]: Finished difference. Result has 588 places, 447 transitions, 1236 flow [2024-11-24 00:44:36,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2178, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1236, PETRI_PLACES=588, PETRI_TRANSITIONS=447} [2024-11-24 00:44:36,303 INFO L279 CegarLoopForPetriNet]: 594 programPoint places, -6 predicate places. [2024-11-24 00:44:36,303 INFO L471 AbstractCegarLoop]: Abstraction has has 588 places, 447 transitions, 1236 flow [2024-11-24 00:44:36,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1651.0) internal successors, (4953), 3 states have internal predecessors, (4953), 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 00:44:36,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:36,303 INFO L206 CegarLoopForPetriNet]: trace histogram [58, 58, 58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:36,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2024-11-24 00:44:36,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-24 00:44:36,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:36,311 INFO L85 PathProgramCache]: Analyzing trace with hash 965801138, now seen corresponding path program 1 times [2024-11-24 00:44:36,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:36,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678782874] [2024-11-24 00:44:36,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:36,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:36,559 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 00:44:36,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678782874] [2024-11-24 00:44:36,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678782874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139882387] [2024-11-24 00:44:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:36,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:36,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:36,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:36,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:36,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1825 out of 2178 [2024-11-24 00:44:36,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 447 transitions, 1236 flow. Second operand has 4 states, 4 states have (on average 1840.75) internal successors, (7363), 4 states have internal predecessors, (7363), 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 00:44:36,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:36,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1825 of 2178 [2024-11-24 00:44:36,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:37,319 INFO L124 PetriNetUnfolderBase]: 0/1181 cut-off events. [2024-11-24 00:44:37,319 INFO L125 PetriNetUnfolderBase]: For 1765/1765 co-relation queries the response was YES. [2024-11-24 00:44:37,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 1181 events. 0/1181 cut-off events. For 1765/1765 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 683 event pairs, 0 based on Foata normal form. 0/1181 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2024-11-24 00:44:37,321 INFO L140 encePairwiseOnDemand]: 2174/2178 looper letters, 61 selfloop transitions, 3 changer transitions 0/446 dead transitions. [2024-11-24 00:44:37,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 446 transitions, 1362 flow [2024-11-24 00:44:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:37,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7365 transitions. [2024-11-24 00:44:37,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453856749311295 [2024-11-24 00:44:37,326 INFO L175 Difference]: Start difference. First operand has 588 places, 447 transitions, 1236 flow. Second operand 4 states and 7365 transitions. [2024-11-24 00:44:37,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 446 transitions, 1362 flow [2024-11-24 00:44:37,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 446 transitions, 1361 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:37,331 INFO L231 Difference]: Finished difference. Result has 565 places, 446 transitions, 1239 flow [2024-11-24 00:44:37,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2178, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1239, PETRI_PLACES=565, PETRI_TRANSITIONS=446} [2024-11-24 00:44:37,332 INFO L279 CegarLoopForPetriNet]: 594 programPoint places, -29 predicate places. [2024-11-24 00:44:37,332 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 446 transitions, 1239 flow [2024-11-24 00:44:37,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1840.75) internal successors, (7363), 4 states have internal predecessors, (7363), 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 00:44:37,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:37,333 INFO L206 CegarLoopForPetriNet]: trace histogram [58, 58, 58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:37,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2024-11-24 00:44:37,333 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-24 00:44:37,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash -27532898, now seen corresponding path program 1 times [2024-11-24 00:44:37,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:37,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925866575] [2024-11-24 00:44:37,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:37,499 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:38,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:44:38,379 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-11-24 00:44:38,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-11-24 00:44:38,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-11-24 00:44:38,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-11-24 00:44:38,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-11-24 00:44:38,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2024-11-24 00:44:38,383 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:44:38,384 WARN L246 ceAbstractionStarter]: 57 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:44:38,384 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 58 thread instances. [2024-11-24 00:44:38,631 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:44:38,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2214 places, 2215 transitions, 11506 flow [2024-11-24 00:44:40,632 INFO L124 PetriNetUnfolderBase]: 297/3804 cut-off events. [2024-11-24 00:44:40,632 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2024-11-24 00:44:40,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5808 conditions, 3804 events. 297/3804 cut-off events. For 34162/34162 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 11071 event pairs, 0 based on Foata normal form. 0/3326 useless extension candidates. Maximal degree in co-relation 5691. Up to 118 conditions per place. [2024-11-24 00:44:40,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 2214 places, 2215 transitions, 11506 flow [2024-11-24 00:44:40,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 603 places, 488 transitions, 4517 flow [2024-11-24 00:44:40,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:40,736 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:40,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2024-11-24 00:44:40,738 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:40,738 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:40,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:40,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:40,738 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:40,739 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-24 00:44:40,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2087015410, now seen corresponding path program 1 times [2024-11-24 00:44:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:40,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194038587] [2024-11-24 00:44:40,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:40,879 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 00:44:40,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:40,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194038587] [2024-11-24 00:44:40,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194038587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:40,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:40,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:40,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68241075] [2024-11-24 00:44:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:40,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:40,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:40,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:40,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:41,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1796 out of 2215 [2024-11-24 00:44:41,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 488 transitions, 4517 flow. Second operand has 3 states, 3 states have (on average 1797.3333333333333) internal successors, (5392), 3 states have internal predecessors, (5392), 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 00:44:41,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:41,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1796 of 2215 [2024-11-24 00:44:41,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:42,859 INFO L124 PetriNetUnfolderBase]: 119/2917 cut-off events. [2024-11-24 00:44:42,859 INFO L125 PetriNetUnfolderBase]: For 35932/35932 co-relation queries the response was YES. [2024-11-24 00:44:42,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5285 conditions, 2917 events. 119/2917 cut-off events. For 35932/35932 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8366 event pairs, 59 based on Foata normal form. 119/2795 useless extension candidates. Maximal degree in co-relation 5124. Up to 419 conditions per place. [2024-11-24 00:44:42,936 INFO L140 encePairwiseOnDemand]: 2209/2215 looper letters, 68 selfloop transitions, 2 changer transitions 1/484 dead transitions. [2024-11-24 00:44:42,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 604 places, 484 transitions, 4649 flow [2024-11-24 00:44:42,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5462 transitions. [2024-11-24 00:44:42,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8219714070729872 [2024-11-24 00:44:42,941 INFO L175 Difference]: Start difference. First operand has 603 places, 488 transitions, 4517 flow. Second operand 3 states and 5462 transitions. [2024-11-24 00:44:42,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 604 places, 484 transitions, 4649 flow [2024-11-24 00:44:43,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 484 transitions, 1456 flow, removed 1596 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:43,026 INFO L231 Difference]: Finished difference. Result has 603 places, 483 transitions, 1318 flow [2024-11-24 00:44:43,026 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2215, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=482, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=603, PETRI_TRANSITIONS=483} [2024-11-24 00:44:43,027 INFO L279 CegarLoopForPetriNet]: 603 programPoint places, 0 predicate places. [2024-11-24 00:44:43,027 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 483 transitions, 1318 flow [2024-11-24 00:44:43,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1797.3333333333333) internal successors, (5392), 3 states have internal predecessors, (5392), 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 00:44:43,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:43,027 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:43,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2024-11-24 00:44:43,028 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-24 00:44:43,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash -262497668, now seen corresponding path program 1 times [2024-11-24 00:44:43,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:43,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363943153] [2024-11-24 00:44:43,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:43,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:43,122 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 00:44:43,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363943153] [2024-11-24 00:44:43,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363943153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:43,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:43,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:43,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426621715] [2024-11-24 00:44:43,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:43,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:43,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:43,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:43,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:43,325 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1678 out of 2215 [2024-11-24 00:44:43,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 483 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 1679.0) internal successors, (5037), 3 states have internal predecessors, (5037), 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 00:44:43,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:43,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1678 of 2215 [2024-11-24 00:44:43,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:44,582 INFO L124 PetriNetUnfolderBase]: 60/2618 cut-off events. [2024-11-24 00:44:44,582 INFO L125 PetriNetUnfolderBase]: For 1826/1826 co-relation queries the response was YES. [2024-11-24 00:44:44,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 2618 events. 60/2618 cut-off events. For 1826/1826 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6243 event pairs, 0 based on Foata normal form. 59/2558 useless extension candidates. Maximal degree in co-relation 3194. Up to 300 conditions per place. [2024-11-24 00:44:44,639 INFO L140 encePairwiseOnDemand]: 2209/2215 looper letters, 66 selfloop transitions, 1 changer transitions 24/478 dead transitions. [2024-11-24 00:44:44,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 478 transitions, 1446 flow [2024-11-24 00:44:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5108 transitions. [2024-11-24 00:44:44,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7686982693754703 [2024-11-24 00:44:44,643 INFO L175 Difference]: Start difference. First operand has 603 places, 483 transitions, 1318 flow. Second operand 3 states and 5108 transitions. [2024-11-24 00:44:44,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 478 transitions, 1446 flow [2024-11-24 00:44:44,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 478 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:44,650 INFO L231 Difference]: Finished difference. Result has 597 places, 454 transitions, 1256 flow [2024-11-24 00:44:44,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2215, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1256, PETRI_PLACES=597, PETRI_TRANSITIONS=454} [2024-11-24 00:44:44,651 INFO L279 CegarLoopForPetriNet]: 603 programPoint places, -6 predicate places. [2024-11-24 00:44:44,651 INFO L471 AbstractCegarLoop]: Abstraction has has 597 places, 454 transitions, 1256 flow [2024-11-24 00:44:44,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1679.0) internal successors, (5037), 3 states have internal predecessors, (5037), 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 00:44:44,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:44,652 INFO L206 CegarLoopForPetriNet]: trace histogram [59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:44,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2024-11-24 00:44:44,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-24 00:44:44,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:44,666 INFO L85 PathProgramCache]: Analyzing trace with hash 670268519, now seen corresponding path program 1 times [2024-11-24 00:44:44,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:44,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290283953] [2024-11-24 00:44:44,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:44,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:45,063 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 00:44:45,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:45,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290283953] [2024-11-24 00:44:45,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290283953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:45,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:45,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:45,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512207529] [2024-11-24 00:44:45,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:45,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:45,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:45,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:45,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:45,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1856 out of 2215 [2024-11-24 00:44:45,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 454 transitions, 1256 flow. Second operand has 4 states, 4 states have (on average 1872.0) internal successors, (7488), 4 states have internal predecessors, (7488), 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 00:44:45,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:45,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1856 of 2215 [2024-11-24 00:44:45,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:45,852 INFO L124 PetriNetUnfolderBase]: 0/1201 cut-off events. [2024-11-24 00:44:45,852 INFO L125 PetriNetUnfolderBase]: For 1825/1825 co-relation queries the response was YES. [2024-11-24 00:44:45,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1201 events. 0/1201 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 696 event pairs, 0 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2024-11-24 00:44:45,853 INFO L140 encePairwiseOnDemand]: 2211/2215 looper letters, 62 selfloop transitions, 3 changer transitions 0/453 dead transitions. [2024-11-24 00:44:45,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 453 transitions, 1384 flow [2024-11-24 00:44:45,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7490 transitions. [2024-11-24 00:44:45,857 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.845372460496614 [2024-11-24 00:44:45,858 INFO L175 Difference]: Start difference. First operand has 597 places, 454 transitions, 1256 flow. Second operand 4 states and 7490 transitions. [2024-11-24 00:44:45,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 453 transitions, 1384 flow [2024-11-24 00:44:45,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 453 transitions, 1383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:45,863 INFO L231 Difference]: Finished difference. Result has 574 places, 453 transitions, 1259 flow [2024-11-24 00:44:45,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2215, PETRI_DIFFERENCE_MINUEND_FLOW=1253, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1259, PETRI_PLACES=574, PETRI_TRANSITIONS=453} [2024-11-24 00:44:45,863 INFO L279 CegarLoopForPetriNet]: 603 programPoint places, -29 predicate places. [2024-11-24 00:44:45,864 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 453 transitions, 1259 flow [2024-11-24 00:44:45,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1872.0) internal successors, (7488), 4 states have internal predecessors, (7488), 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 00:44:45,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:45,865 INFO L206 CegarLoopForPetriNet]: trace histogram [59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:45,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2024-11-24 00:44:45,865 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-24 00:44:45,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash -132853670, now seen corresponding path program 1 times [2024-11-24 00:44:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:45,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528457081] [2024-11-24 00:44:45,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:45,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:46,032 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:46,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:44:46,727 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (65 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (64 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (63 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (62 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (61 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (60 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (58 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (57 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (56 of 66 remaining) [2024-11-24 00:44:46,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 66 remaining) [2024-11-24 00:44:46,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 66 remaining) [2024-11-24 00:44:46,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 66 remaining) [2024-11-24 00:44:46,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 66 remaining) [2024-11-24 00:44:46,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2024-11-24 00:44:46,730 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:44:46,731 WARN L246 ceAbstractionStarter]: 58 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:44:46,731 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 59 thread instances. [2024-11-24 00:44:47,019 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:44:47,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2251 places, 2252 transitions, 11820 flow [2024-11-24 00:44:49,666 INFO L124 PetriNetUnfolderBase]: 302/3868 cut-off events. [2024-11-24 00:44:49,666 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2024-11-24 00:44:49,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5936 conditions, 3868 events. 302/3868 cut-off events. For 35931/35931 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10986 event pairs, 0 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 5817. Up to 120 conditions per place. [2024-11-24 00:44:49,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 2251 places, 2252 transitions, 11820 flow [2024-11-24 00:44:49,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 612 places, 495 transitions, 4651 flow [2024-11-24 00:44:49,724 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:44:49,724 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;@42e3ae09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:44:49,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2024-11-24 00:44:49,725 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:44:49,725 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-24 00:44:49,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:44:49,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:49,725 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:49,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2024-11-24 00:44:49,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash -16613746, now seen corresponding path program 1 times [2024-11-24 00:44:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:49,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340459116] [2024-11-24 00:44:49,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:49,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:49,824 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 00:44:49,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:49,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340459116] [2024-11-24 00:44:49,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340459116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:49,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:49,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332573652] [2024-11-24 00:44:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:49,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:49,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:49,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:50,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1826 out of 2252 [2024-11-24 00:44:50,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 495 transitions, 4651 flow. Second operand has 3 states, 3 states have (on average 1827.3333333333333) internal successors, (5482), 3 states have internal predecessors, (5482), 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 00:44:50,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:50,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1826 of 2252 [2024-11-24 00:44:50,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:52,080 INFO L124 PetriNetUnfolderBase]: 121/2966 cut-off events. [2024-11-24 00:44:52,080 INFO L125 PetriNetUnfolderBase]: For 37761/37761 co-relation queries the response was YES. [2024-11-24 00:44:52,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5404 conditions, 2966 events. 121/2966 cut-off events. For 37761/37761 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 7901 event pairs, 60 based on Foata normal form. 61/2782 useless extension candidates. Maximal degree in co-relation 5242. Up to 426 conditions per place. [2024-11-24 00:44:52,135 INFO L140 encePairwiseOnDemand]: 2246/2252 looper letters, 69 selfloop transitions, 2 changer transitions 1/491 dead transitions. [2024-11-24 00:44:52,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 491 transitions, 4785 flow [2024-11-24 00:44:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:52,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5553 transitions. [2024-11-24 00:44:52,139 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8219360568383659 [2024-11-24 00:44:52,139 INFO L175 Difference]: Start difference. First operand has 612 places, 495 transitions, 4651 flow. Second operand 3 states and 5553 transitions. [2024-11-24 00:44:52,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 491 transitions, 4785 flow [2024-11-24 00:44:52,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 491 transitions, 1478 flow, removed 1653 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:52,214 INFO L231 Difference]: Finished difference. Result has 612 places, 490 transitions, 1338 flow [2024-11-24 00:44:52,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2252, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=612, PETRI_TRANSITIONS=490} [2024-11-24 00:44:52,214 INFO L279 CegarLoopForPetriNet]: 612 programPoint places, 0 predicate places. [2024-11-24 00:44:52,214 INFO L471 AbstractCegarLoop]: Abstraction has has 612 places, 490 transitions, 1338 flow [2024-11-24 00:44:52,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1827.3333333333333) internal successors, (5482), 3 states have internal predecessors, (5482), 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 00:44:52,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:52,215 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:44:52,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2024-11-24 00:44:52,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2024-11-24 00:44:52,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:52,216 INFO L85 PathProgramCache]: Analyzing trace with hash -949627064, now seen corresponding path program 1 times [2024-11-24 00:44:52,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:52,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448512107] [2024-11-24 00:44:52,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:52,438 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 00:44:52,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:52,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448512107] [2024-11-24 00:44:52,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448512107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:52,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:52,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:44:52,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287374007] [2024-11-24 00:44:52,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:52,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:44:52,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:52,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:44:52,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:44:52,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1706 out of 2252 [2024-11-24 00:44:52,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 490 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 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 00:44:52,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:52,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1706 of 2252 [2024-11-24 00:44:52,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:54,598 INFO L124 PetriNetUnfolderBase]: 61/2662 cut-off events. [2024-11-24 00:44:54,598 INFO L125 PetriNetUnfolderBase]: For 1887/1887 co-relation queries the response was YES. [2024-11-24 00:44:54,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3328 conditions, 2662 events. 61/2662 cut-off events. For 1887/1887 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5873 event pairs, 0 based on Foata normal form. 60/2601 useless extension candidates. Maximal degree in co-relation 3248. Up to 305 conditions per place. [2024-11-24 00:44:54,620 INFO L140 encePairwiseOnDemand]: 2246/2252 looper letters, 67 selfloop transitions, 1 changer transitions 24/485 dead transitions. [2024-11-24 00:44:54,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 485 transitions, 1468 flow [2024-11-24 00:44:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:44:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:44:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5193 transitions. [2024-11-24 00:44:54,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7686500888099467 [2024-11-24 00:44:54,624 INFO L175 Difference]: Start difference. First operand has 612 places, 490 transitions, 1338 flow. Second operand 3 states and 5193 transitions. [2024-11-24 00:44:54,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 485 transitions, 1468 flow [2024-11-24 00:44:54,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 485 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:44:54,629 INFO L231 Difference]: Finished difference. Result has 606 places, 461 transitions, 1276 flow [2024-11-24 00:44:54,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2252, PETRI_DIFFERENCE_MINUEND_FLOW=1324, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1276, PETRI_PLACES=606, PETRI_TRANSITIONS=461} [2024-11-24 00:44:54,630 INFO L279 CegarLoopForPetriNet]: 612 programPoint places, -6 predicate places. [2024-11-24 00:44:54,630 INFO L471 AbstractCegarLoop]: Abstraction has has 606 places, 461 transitions, 1276 flow [2024-11-24 00:44:54,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 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 00:44:54,630 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:54,630 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:54,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2024-11-24 00:44:54,631 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2024-11-24 00:44:54,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:54,637 INFO L85 PathProgramCache]: Analyzing trace with hash -823667931, now seen corresponding path program 1 times [2024-11-24 00:44:54,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:54,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738506817] [2024-11-24 00:44:54,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:44:54,875 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 00:44:54,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:54,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738506817] [2024-11-24 00:44:54,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738506817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:54,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:44:54,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:44:54,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915756053] [2024-11-24 00:44:54,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:54,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:44:54,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:54,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:44:54,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:44:55,016 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1887 out of 2252 [2024-11-24 00:44:55,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 461 transitions, 1276 flow. Second operand has 4 states, 4 states have (on average 1903.25) internal successors, (7613), 4 states have internal predecessors, (7613), 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 00:44:55,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:55,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1887 of 2252 [2024-11-24 00:44:55,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:55,772 INFO L124 PetriNetUnfolderBase]: 0/1221 cut-off events. [2024-11-24 00:44:55,772 INFO L125 PetriNetUnfolderBase]: For 1886/1886 co-relation queries the response was YES. [2024-11-24 00:44:55,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1526 conditions, 1221 events. 0/1221 cut-off events. For 1886/1886 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 707 event pairs, 0 based on Foata normal form. 0/1221 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2024-11-24 00:44:55,773 INFO L140 encePairwiseOnDemand]: 2248/2252 looper letters, 63 selfloop transitions, 3 changer transitions 0/460 dead transitions. [2024-11-24 00:44:55,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 460 transitions, 1406 flow [2024-11-24 00:44:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:44:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:44:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7615 transitions. [2024-11-24 00:44:55,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453596802841918 [2024-11-24 00:44:55,777 INFO L175 Difference]: Start difference. First operand has 606 places, 461 transitions, 1276 flow. Second operand 4 states and 7615 transitions. [2024-11-24 00:44:55,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 460 transitions, 1406 flow [2024-11-24 00:44:55,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 460 transitions, 1405 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:44:55,783 INFO L231 Difference]: Finished difference. Result has 583 places, 460 transitions, 1279 flow [2024-11-24 00:44:55,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2252, PETRI_DIFFERENCE_MINUEND_FLOW=1273, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1279, PETRI_PLACES=583, PETRI_TRANSITIONS=460} [2024-11-24 00:44:55,783 INFO L279 CegarLoopForPetriNet]: 612 programPoint places, -29 predicate places. [2024-11-24 00:44:55,783 INFO L471 AbstractCegarLoop]: Abstraction has has 583 places, 460 transitions, 1279 flow [2024-11-24 00:44:55,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1903.25) internal successors, (7613), 4 states have internal predecessors, (7613), 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 00:44:55,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:55,784 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:44:55,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2024-11-24 00:44:55,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2024-11-24 00:44:55,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:55,792 INFO L85 PathProgramCache]: Analyzing trace with hash 844026148, now seen corresponding path program 1 times [2024-11-24 00:44:55,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:55,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854904022] [2024-11-24 00:44:55,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:44:55,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:44:56,034 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:44:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat