./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/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_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/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_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:28:14,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:28:14,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-23 18:28:14,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:28:14,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:28:14,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:28:14,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:28:14,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:28:14,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:28:14,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:28:14,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:28:14,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:28:14,913 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:28:14,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:28:14,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:28:14,914 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:28:14,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:28:14,914 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:28:14,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:28:14,916 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:28:14,917 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:28:14,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:28:14,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:28:14,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:28:14,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:28:14,918 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_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/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 -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2024-11-23 18:28:15,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:28:15,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:28:15,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:28:15,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:28:15,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:28:15,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2024-11-23 18:28:18,333 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/data/65064f66a/a226d6b4ff9e4e439931cf5f80534dd5/FLAGd664f261f [2024-11-23 18:28:18,626 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:28:18,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2024-11-23 18:28:18,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/data/65064f66a/a226d6b4ff9e4e439931cf5f80534dd5/FLAGd664f261f [2024-11-23 18:28:18,655 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/data/65064f66a/a226d6b4ff9e4e439931cf5f80534dd5 [2024-11-23 18:28:18,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:28:18,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:28:18,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:28:18,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:28:18,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:28:18,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:28:18" (1/1) ... [2024-11-23 18:28:18,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f05138f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:18, skipping insertion in model container [2024-11-23 18:28:18,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:28:18" (1/1) ... [2024-11-23 18:28:18,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:28:19,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:28:19,043 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:28:19,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:28:19,180 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:28:19,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19 WrapperNode [2024-11-23 18:28:19,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:28:19,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:28:19,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:28:19,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:28:19,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,252 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 252 [2024-11-23 18:28:19,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:28:19,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:28:19,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:28:19,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:28:19,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,299 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:28:19,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:28:19,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:28:19,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:28:19,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (1/1) ... [2024-11-23 18:28:19,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:28:19,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:28:19,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:28:19,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d37e4a-5c0a-4ff4-8b80-fefa229c520e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:28:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 18:28:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-23 18:28:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-23 18:28:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 18:28:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:28:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:28:19,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:28:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 18:28:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:28:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:28:19,407 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 18:28:19,564 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:28:19,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:28:20,215 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 18:28:20,215 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:28:20,492 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:28:20,492 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 18:28:20,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:28:20 BoogieIcfgContainer [2024-11-23 18:28:20,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:28:20,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:28:20,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:28:20,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:28:20,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:28:18" (1/3) ... [2024-11-23 18:28:20,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad2e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:28:20, skipping insertion in model container [2024-11-23 18:28:20,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:28:19" (2/3) ... [2024-11-23 18:28:20,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad2e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:28:20, skipping insertion in model container [2024-11-23 18:28:20,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:28:20" (3/3) ... [2024-11-23 18:28:20,508 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2024-11-23 18:28:20,525 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:28:20,527 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur-race.i that has 2 procedures, 207 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2024-11-23 18:28:20,527 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 18:28:20,648 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 18:28:20,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 217 transitions, 438 flow [2024-11-23 18:28:20,835 INFO L124 PetriNetUnfolderBase]: 11/225 cut-off events. [2024-11-23 18:28:20,839 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:28:20,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 225 events. 11/225 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 175 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 137. Up to 4 conditions per place. [2024-11-23 18:28:20,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 217 transitions, 438 flow [2024-11-23 18:28:20,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 217 transitions, 438 flow [2024-11-23 18:28:20,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:28:20,924 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;@5caa69e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:28:20,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-23 18:28:20,955 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:28:20,955 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2024-11-23 18:28:20,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:28:20,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:20,957 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:20,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-23 18:28:20,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:20,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1052814376, now seen corresponding path program 1 times [2024-11-23 18:28:20,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:20,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392488681] [2024-11-23 18:28:20,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:20,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:28:21,197 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:28:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:28:21,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:28:21,309 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:28:21,310 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-23 18:28:21,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-23 18:28:21,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-23 18:28:21,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-23 18:28:21,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-23 18:28:21,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-23 18:28:21,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2024-11-23 18:28:21,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-23 18:28:21,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-23 18:28:21,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-23 18:28:21,318 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-23 18:28:21,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-23 18:28:21,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-23 18:28:21,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-23 18:28:21,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-23 18:28:21,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-23 18:28:21,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-23 18:28:21,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-23 18:28:21,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-23 18:28:21,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-23 18:28:21,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-23 18:28:21,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-23 18:28:21,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-23 18:28:21,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-23 18:28:21,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-23 18:28:21,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-23 18:28:21,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-23 18:28:21,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:28:21,326 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 18:28:21,332 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:28:21,332 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-23 18:28:21,471 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 18:28:21,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 331 places, 345 transitions, 700 flow [2024-11-23 18:28:21,656 INFO L124 PetriNetUnfolderBase]: 21/363 cut-off events. [2024-11-23 18:28:21,656 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 18:28:21,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 363 events. 21/363 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 726 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 264. Up to 6 conditions per place. [2024-11-23 18:28:21,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 345 transitions, 700 flow [2024-11-23 18:28:21,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 345 transitions, 700 flow [2024-11-23 18:28:21,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:28:21,678 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;@5caa69e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:28:21,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-23 18:28:21,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:28:21,699 INFO L124 PetriNetUnfolderBase]: 4/112 cut-off events. [2024-11-23 18:28:21,699 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:28:21,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:21,700 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:21,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-23 18:28:21,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1906569771, now seen corresponding path program 1 times [2024-11-23 18:28:21,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:21,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658900120] [2024-11-23 18:28:21,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:28:21,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:21,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658900120] [2024-11-23 18:28:21,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658900120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:21,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:21,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 18:28:21,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332219648] [2024-11-23 18:28:21,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:21,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:28:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:21,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:28:21,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:28:21,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 345 [2024-11-23 18:28:22,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 345 transitions, 700 flow. Second operand has 2 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:22,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:28:22,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 345 [2024-11-23 18:28:22,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:28:22,312 INFO L124 PetriNetUnfolderBase]: 18/522 cut-off events. [2024-11-23 18:28:22,313 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-23 18:28:22,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 522 events. 18/522 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1333 event pairs, 6 based on Foata normal form. 41/508 useless extension candidates. Maximal degree in co-relation 194. Up to 19 conditions per place. [2024-11-23 18:28:22,321 INFO L140 encePairwiseOnDemand]: 309/345 looper letters, 6 selfloop transitions, 0 changer transitions 0/290 dead transitions. [2024-11-23 18:28:22,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 290 transitions, 602 flow [2024-11-23 18:28:22,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:28:22,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-23 18:28:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 644 transitions. [2024-11-23 18:28:22,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2024-11-23 18:28:22,346 INFO L175 Difference]: Start difference. First operand has 331 places, 345 transitions, 700 flow. Second operand 2 states and 644 transitions. [2024-11-23 18:28:22,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 290 transitions, 602 flow [2024-11-23 18:28:22,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 290 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:28:22,363 INFO L231 Difference]: Finished difference. Result has 290 places, 290 transitions, 590 flow [2024-11-23 18:28:22,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=590, PETRI_PLACES=290, PETRI_TRANSITIONS=290} [2024-11-23 18:28:22,372 INFO L279 CegarLoopForPetriNet]: 331 programPoint places, -41 predicate places. [2024-11-23 18:28:22,372 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 290 transitions, 590 flow [2024-11-23 18:28:22,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:22,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:22,374 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:22,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:28:22,375 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-23 18:28:22,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1170009662, now seen corresponding path program 1 times [2024-11-23 18:28:22,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:22,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400098642] [2024-11-23 18:28:22,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:22,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:28:22,459 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:28:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:28:22,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:28:22,497 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-23 18:28:22,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-23 18:28:22,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-23 18:28:22,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-23 18:28:22,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-23 18:28:22,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-23 18:28:22,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-23 18:28:22,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-23 18:28:22,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-23 18:28:22,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-23 18:28:22,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-23 18:28:22,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-23 18:28:22,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:28:22,505 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 18:28:22,506 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:28:22,506 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-23 18:28:22,666 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 18:28:22,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 473 transitions, 964 flow [2024-11-23 18:28:22,834 INFO L124 PetriNetUnfolderBase]: 31/501 cut-off events. [2024-11-23 18:28:22,834 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-23 18:28:22,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 501 events. 31/501 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1484 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 391. Up to 8 conditions per place. [2024-11-23 18:28:22,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 452 places, 473 transitions, 964 flow [2024-11-23 18:28:22,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 473 transitions, 964 flow [2024-11-23 18:28:22,851 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:28:22,852 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;@5caa69e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:28:22,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-11-23 18:28:22,881 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:28:22,881 INFO L124 PetriNetUnfolderBase]: 5/116 cut-off events. [2024-11-23 18:28:22,882 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:28:22,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:22,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:22,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-23 18:28:22,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash -649915404, now seen corresponding path program 1 times [2024-11-23 18:28:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:22,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434484510] [2024-11-23 18:28:22,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:22,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:28:23,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434484510] [2024-11-23 18:28:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434484510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 18:28:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239774287] [2024-11-23 18:28:23,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:23,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:28:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:23,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:28:23,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:28:23,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 473 [2024-11-23 18:28:23,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 473 transitions, 964 flow. Second operand has 2 states, 2 states have (on average 409.0) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:23,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:28:23,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 473 [2024-11-23 18:28:23,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:28:23,792 INFO L124 PetriNetUnfolderBase]: 81/1536 cut-off events. [2024-11-23 18:28:23,793 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-23 18:28:23,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1669 conditions, 1536 events. 81/1536 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8734 event pairs, 42 based on Foata normal form. 172/1523 useless extension candidates. Maximal degree in co-relation 548. Up to 82 conditions per place. [2024-11-23 18:28:23,816 INFO L140 encePairwiseOnDemand]: 420/473 looper letters, 9 selfloop transitions, 0 changer transitions 0/393 dead transitions. [2024-11-23 18:28:23,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 393 transitions, 822 flow [2024-11-23 18:28:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:28:23,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-23 18:28:23,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 878 transitions. [2024-11-23 18:28:23,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9281183932346723 [2024-11-23 18:28:23,825 INFO L175 Difference]: Start difference. First operand has 452 places, 473 transitions, 964 flow. Second operand 2 states and 878 transitions. [2024-11-23 18:28:23,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 393 transitions, 822 flow [2024-11-23 18:28:23,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 393 transitions, 820 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-23 18:28:23,839 INFO L231 Difference]: Finished difference. Result has 392 places, 393 transitions, 802 flow [2024-11-23 18:28:23,840 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=473, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=802, PETRI_PLACES=392, PETRI_TRANSITIONS=393} [2024-11-23 18:28:23,841 INFO L279 CegarLoopForPetriNet]: 452 programPoint places, -60 predicate places. [2024-11-23 18:28:23,841 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 393 transitions, 802 flow [2024-11-23 18:28:23,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 409.0) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:23,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:23,841 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:23,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:28:23,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-23 18:28:23,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:23,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1981031043, now seen corresponding path program 1 times [2024-11-23 18:28:23,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:23,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533437154] [2024-11-23 18:28:23,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:23,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:28:24,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533437154] [2024-11-23 18:28:24,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533437154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:24,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:24,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:28:24,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137479740] [2024-11-23 18:28:24,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:24,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:28:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:24,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:28:24,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:28:26,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 473 [2024-11-23 18:28:26,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 393 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:26,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:28:26,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 473 [2024-11-23 18:28:26,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:28:30,720 INFO L124 PetriNetUnfolderBase]: 1402/13701 cut-off events. [2024-11-23 18:28:30,720 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2024-11-23 18:28:30,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16079 conditions, 13701 events. 1402/13701 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 161044 event pairs, 263 based on Foata normal form. 0/11910 useless extension candidates. Maximal degree in co-relation 16073. Up to 1285 conditions per place. [2024-11-23 18:28:30,867 INFO L140 encePairwiseOnDemand]: 444/473 looper letters, 53 selfloop transitions, 37 changer transitions 0/446 dead transitions. [2024-11-23 18:28:30,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 446 transitions, 1128 flow [2024-11-23 18:28:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:28:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:28:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2368 transitions. [2024-11-23 18:28:30,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8343904157857647 [2024-11-23 18:28:30,873 INFO L175 Difference]: Start difference. First operand has 392 places, 393 transitions, 802 flow. Second operand 6 states and 2368 transitions. [2024-11-23 18:28:30,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 446 transitions, 1128 flow [2024-11-23 18:28:30,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 446 transitions, 1128 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:28:30,886 INFO L231 Difference]: Finished difference. Result has 402 places, 429 transitions, 1078 flow [2024-11-23 18:28:30,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=473, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=402, PETRI_TRANSITIONS=429} [2024-11-23 18:28:30,887 INFO L279 CegarLoopForPetriNet]: 452 programPoint places, -50 predicate places. [2024-11-23 18:28:30,887 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 429 transitions, 1078 flow [2024-11-23 18:28:30,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:30,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:30,889 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:30,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:28:30,890 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-23 18:28:30,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash 59133203, now seen corresponding path program 1 times [2024-11-23 18:28:30,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:30,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455989491] [2024-11-23 18:28:30,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:30,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:28:30,926 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:28:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:28:30,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:28:30,954 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:28:30,954 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2024-11-23 18:28:30,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2024-11-23 18:28:30,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2024-11-23 18:28:30,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2024-11-23 18:28:30,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2024-11-23 18:28:30,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2024-11-23 18:28:30,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2024-11-23 18:28:30,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2024-11-23 18:28:30,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2024-11-23 18:28:30,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2024-11-23 18:28:30,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2024-11-23 18:28:30,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:28:30,962 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 18:28:30,963 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:28:30,963 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-23 18:28:31,119 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 18:28:31,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 601 transitions, 1230 flow [2024-11-23 18:28:31,287 INFO L124 PetriNetUnfolderBase]: 41/639 cut-off events. [2024-11-23 18:28:31,287 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-23 18:28:31,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 639 events. 41/639 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2321 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 518. Up to 10 conditions per place. [2024-11-23 18:28:31,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 601 transitions, 1230 flow [2024-11-23 18:28:31,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 573 places, 601 transitions, 1230 flow [2024-11-23 18:28:31,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:28:31,312 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;@5caa69e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:28:31,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2024-11-23 18:28:31,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:28:31,319 INFO L124 PetriNetUnfolderBase]: 5/116 cut-off events. [2024-11-23 18:28:31,319 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:28:31,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:31,319 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:31,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-23 18:28:31,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:31,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1592632941, now seen corresponding path program 1 times [2024-11-23 18:28:31,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:31,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766910075] [2024-11-23 18:28:31,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:31,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:28:31,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:31,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766910075] [2024-11-23 18:28:31,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766910075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:31,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:31,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 18:28:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422539200] [2024-11-23 18:28:31,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:31,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:28:31,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:31,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:28:31,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:28:31,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 601 [2024-11-23 18:28:31,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 601 transitions, 1230 flow. Second operand has 2 states, 2 states have (on average 516.0) internal successors, (1032), 2 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:31,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:28:31,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 601 [2024-11-23 18:28:31,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:28:33,040 INFO L124 PetriNetUnfolderBase]: 324/4632 cut-off events. [2024-11-23 18:28:33,040 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2024-11-23 18:28:33,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5144 conditions, 4632 events. 324/4632 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 39962 event pairs, 204 based on Foata normal form. 697/4746 useless extension candidates. Maximal degree in co-relation 1655. Up to 325 conditions per place. [2024-11-23 18:28:33,128 INFO L140 encePairwiseOnDemand]: 531/601 looper letters, 12 selfloop transitions, 0 changer transitions 0/496 dead transitions. [2024-11-23 18:28:33,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 496 transitions, 1044 flow [2024-11-23 18:28:33,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:28:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-23 18:28:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1112 transitions. [2024-11-23 18:28:33,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9251247920133111 [2024-11-23 18:28:33,132 INFO L175 Difference]: Start difference. First operand has 573 places, 601 transitions, 1230 flow. Second operand 2 states and 1112 transitions. [2024-11-23 18:28:33,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 496 transitions, 1044 flow [2024-11-23 18:28:33,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 496 transitions, 1038 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-23 18:28:33,143 INFO L231 Difference]: Finished difference. Result has 494 places, 496 transitions, 1014 flow [2024-11-23 18:28:33,144 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=601, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1014, PETRI_PLACES=494, PETRI_TRANSITIONS=496} [2024-11-23 18:28:33,145 INFO L279 CegarLoopForPetriNet]: 573 programPoint places, -79 predicate places. [2024-11-23 18:28:33,145 INFO L471 AbstractCegarLoop]: Abstraction has has 494 places, 496 transitions, 1014 flow [2024-11-23 18:28:33,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 516.0) internal successors, (1032), 2 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:33,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:33,146 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:33,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:28:33,146 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-23 18:28:33,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash -417136420, now seen corresponding path program 1 times [2024-11-23 18:28:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:33,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010275758] [2024-11-23 18:28:33,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:33,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:28:33,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:33,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010275758] [2024-11-23 18:28:33,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010275758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:33,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:33,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:28:33,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86254399] [2024-11-23 18:28:33,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:33,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:28:33,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:33,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:28:33,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:28:35,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 601 [2024-11-23 18:28:35,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 496 transitions, 1014 flow. Second operand has 6 states, 6 states have (on average 487.5) internal successors, (2925), 6 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:35,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:28:35,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 601 [2024-11-23 18:28:35,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:28:48,194 INFO L124 PetriNetUnfolderBase]: 6427/48976 cut-off events. [2024-11-23 18:28:48,194 INFO L125 PetriNetUnfolderBase]: For 3013/3013 co-relation queries the response was YES. [2024-11-23 18:28:48,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58782 conditions, 48976 events. 6427/48976 cut-off events. For 3013/3013 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 704408 event pairs, 1568 based on Foata normal form. 0/42470 useless extension candidates. Maximal degree in co-relation 58775. Up to 5941 conditions per place. [2024-11-23 18:28:49,141 INFO L140 encePairwiseOnDemand]: 570/601 looper letters, 60 selfloop transitions, 45 changer transitions 0/561 dead transitions. [2024-11-23 18:28:49,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 561 transitions, 1414 flow [2024-11-23 18:28:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:28:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:28:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3025 transitions. [2024-11-23 18:28:49,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8388796450360511 [2024-11-23 18:28:49,150 INFO L175 Difference]: Start difference. First operand has 494 places, 496 transitions, 1014 flow. Second operand 6 states and 3025 transitions. [2024-11-23 18:28:49,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 561 transitions, 1414 flow [2024-11-23 18:28:49,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 561 transitions, 1414 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:28:49,180 INFO L231 Difference]: Finished difference. Result has 504 places, 540 transitions, 1342 flow [2024-11-23 18:28:49,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=601, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1342, PETRI_PLACES=504, PETRI_TRANSITIONS=540} [2024-11-23 18:28:49,181 INFO L279 CegarLoopForPetriNet]: 573 programPoint places, -69 predicate places. [2024-11-23 18:28:49,182 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 540 transitions, 1342 flow [2024-11-23 18:28:49,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 487.5) internal successors, (2925), 6 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:49,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:28:49,184 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:49,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:28:49,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-23 18:28:49,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:49,185 INFO L85 PathProgramCache]: Analyzing trace with hash 300235666, now seen corresponding path program 1 times [2024-11-23 18:28:49,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:49,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882215334] [2024-11-23 18:28:49,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:49,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:28:49,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:49,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882215334] [2024-11-23 18:28:49,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882215334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:49,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:49,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:28:49,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387795276] [2024-11-23 18:28:49,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:49,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:28:49,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:49,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:28:49,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:28:51,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 601 [2024-11-23 18:28:51,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 540 transitions, 1342 flow. Second operand has 6 states, 6 states have (on average 487.6666666666667) internal successors, (2926), 6 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:28:51,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:28:51,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 601 [2024-11-23 18:28:51,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand