./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:05:41,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:05:42,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:05:42,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:05:42,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:05:42,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:05:42,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:05:42,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:05:42,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:05:42,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:05:42,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:05:42,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:05:42,093 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:05:42,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:05:42,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:05:42,097 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:05:42,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:05:42,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:05:42,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:05:42,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:05:42,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:05:42,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:05:42,101 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:05:42,102 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:05:42,102 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:05:42,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:05:42,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:05:42,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:05:42,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:05:42,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:05:42,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:42,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:05:42,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:05:42,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:05:42,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:05:42,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:05:42,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:05:42,110 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:05:42,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:05:42,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:05:42,111 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:05:42,111 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2023-11-06 23:05:42,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:05:42,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:05:42,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:05:42,554 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:05:42,555 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:05:42,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2023-11-06 23:05:45,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:05:46,095 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:05:46,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2023-11-06 23:05:46,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/data/77c52791d/534ba638f5484b7c97f09de0b151026f/FLAG0341a99c0 [2023-11-06 23:05:46,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/data/77c52791d/534ba638f5484b7c97f09de0b151026f [2023-11-06 23:05:46,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:05:46,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:05:46,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:46,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:05:46,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:05:46,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:46" (1/1) ... [2023-11-06 23:05:46,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7467ffb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:46, skipping insertion in model container [2023-11-06 23:05:46,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:46" (1/1) ... [2023-11-06 23:05:46,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:05:47,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:47,233 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:05:47,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:47,429 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:05:47,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47 WrapperNode [2023-11-06 23:05:47,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:47,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:47,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:05:47,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:05:47,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,582 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-11-06 23:05:47,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:47,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:05:47,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:05:47,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:05:47,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:05:47,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:05:47,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:05:47,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:05:47,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (1/1) ... [2023-11-06 23:05:47,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:47,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:05:47,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3051ddfc-e9a6-401b-9e3d-d9099147788d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:05:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:05:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:05:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:05:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:05:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:05:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:05:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:05:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:05:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:05:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:05:47,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:05:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:05:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:05:47,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:05:47,743 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:05:47,934 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:05:47,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:05:48,702 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:05:48,726 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:05:48,726 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:05:48,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:48 BoogieIcfgContainer [2023-11-06 23:05:48,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:05:48,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:05:48,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:05:48,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:05:48,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:05:46" (1/3) ... [2023-11-06 23:05:48,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232667d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:48, skipping insertion in model container [2023-11-06 23:05:48,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:47" (2/3) ... [2023-11-06 23:05:48,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232667d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:48, skipping insertion in model container [2023-11-06 23:05:48,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:48" (3/3) ... [2023-11-06 23:05:48,748 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2023-11-06 23:05:48,759 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:05:48,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:05:48,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 23:05:48,774 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:05:48,908 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:05:48,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 272 transitions, 548 flow [2023-11-06 23:05:49,113 INFO L124 PetriNetUnfolderBase]: 0/271 cut-off events. [2023-11-06 23:05:49,114 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:05:49,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 271 events. 0/271 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:05:49,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 272 transitions, 548 flow [2023-11-06 23:05:49,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 271 transitions, 545 flow [2023-11-06 23:05:49,134 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:05:49,156 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 271 transitions, 545 flow [2023-11-06 23:05:49,161 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 271 transitions, 545 flow [2023-11-06 23:05:49,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 271 transitions, 545 flow [2023-11-06 23:05:49,288 INFO L124 PetriNetUnfolderBase]: 0/271 cut-off events. [2023-11-06 23:05:49,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:05:49,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 271 events. 0/271 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:05:49,296 INFO L119 LiptonReduction]: Number of co-enabled transitions 7728 [2023-11-06 23:07:16,430 WARN L293 SmtUtils]: Spent 48.17s on a formula simplification. DAG size of input: 162 DAG size of output: 156 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:34,589 WARN L293 SmtUtils]: Spent 18.15s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:08:22,943 WARN L293 SmtUtils]: Spent 48.35s on a formula simplification. DAG size of input: 162 DAG size of output: 156 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:08:41,638 WARN L293 SmtUtils]: Spent 18.69s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:09:00,317 WARN L293 SmtUtils]: Spent 18.53s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:09:15,865 WARN L293 SmtUtils]: Spent 15.54s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:09:46,029 WARN L293 SmtUtils]: Spent 30.16s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:09:52,486 WARN L293 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)