./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi006_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e9b64cc0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi006_power.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e9b64cc-m [2023-11-18 16:14:11,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-18 16:14:11,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-18 16:14:11,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-18 16:14:11,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-18 16:14:11,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-18 16:14:11,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-18 16:14:11,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-18 16:14:11,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-18 16:14:11,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-18 16:14:11,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-18 16:14:11,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-18 16:14:11,395 INFO L153 SettingsManager]: * Use SBE=true [2023-11-18 16:14:11,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-18 16:14:11,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-18 16:14:11,396 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-18 16:14:11,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-18 16:14:11,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-18 16:14:11,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-18 16:14:11,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-18 16:14:11,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-18 16:14:11,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-18 16:14:11,399 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-18 16:14:11,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-18 16:14:11,399 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-18 16:14:11,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-18 16:14:11,400 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-18 16:14:11,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-18 16:14:11,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-18 16:14:11,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-18 16:14:11,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-18 16:14:11,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-18 16:14:11,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-18 16:14:11,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-18 16:14:11,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-18 16:14:11,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-18 16:14:11,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-18 16:14:11,403 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-18 16:14:11,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-18 16:14:11,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-18 16:14:11,404 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-18 16:14:11,404 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 [2023-11-18 16:14:11,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-18 16:14:11,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-18 16:14:11,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-18 16:14:11,652 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-18 16:14:11,652 INFO L274 PluginConnector]: CDTParser initialized [2023-11-18 16:14:11,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi006_power.oepc.i [2023-11-18 16:14:12,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-18 16:14:13,152 INFO L384 CDTParser]: Found 1 translation units. [2023-11-18 16:14:13,157 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi006_power.oepc.i [2023-11-18 16:14:13,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/144d4309c/7a21a299800e48fb9ff2df9091836abf/FLAGcfc6845c5 [2023-11-18 16:14:13,201 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/144d4309c/7a21a299800e48fb9ff2df9091836abf [2023-11-18 16:14:13,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-18 16:14:13,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-18 16:14:13,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-18 16:14:13,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-18 16:14:13,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-18 16:14:13,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:13,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50489b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13, skipping insertion in model container [2023-11-18 16:14:13,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:13,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-18 16:14:13,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-18 16:14:13,758 INFO L202 MainTranslator]: Completed pre-run [2023-11-18 16:14:13,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-18 16:14:13,911 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-18 16:14:13,911 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-18 16:14:13,918 INFO L206 MainTranslator]: Completed translation [2023-11-18 16:14:13,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13 WrapperNode [2023-11-18 16:14:13,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-18 16:14:13,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-18 16:14:13,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-18 16:14:13,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-18 16:14:13,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:13,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:13,997 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 324 [2023-11-18 16:14:13,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-18 16:14:13,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-18 16:14:13,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-18 16:14:14,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-18 16:14:14,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-18 16:14:14,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-18 16:14:14,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-18 16:14:14,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-18 16:14:14,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (1/1) ... [2023-11-18 16:14:14,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-18 16:14:14,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-18 16:14:14,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-18 16:14:14,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-18 16:14:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-18 16:14:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-18 16:14:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-18 16:14:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-18 16:14:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-18 16:14:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-18 16:14:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-18 16:14:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-18 16:14:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-18 16:14:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-18 16:14:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-18 16:14:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-18 16:14:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-18 16:14:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-18 16:14:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-18 16:14:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-18 16:14:14,248 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-18 16:14:14,471 INFO L237 CfgBuilder]: Building ICFG [2023-11-18 16:14:14,474 INFO L263 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-18 16:14:15,948 INFO L278 CfgBuilder]: Performing block encoding [2023-11-18 16:14:36,766 INFO L298 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-18 16:14:36,766 INFO L303 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-18 16:14:36,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:14:36 BoogieIcfgContainer [2023-11-18 16:14:36,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-18 16:14:36,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-18 16:14:36,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-18 16:14:36,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-18 16:14:36,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:14:13" (1/3) ... [2023-11-18 16:14:36,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a7825a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:14:36, skipping insertion in model container [2023-11-18 16:14:36,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:14:13" (2/3) ... [2023-11-18 16:14:36,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a7825a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:14:36, skipping insertion in model container [2023-11-18 16:14:36,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:14:36" (3/3) ... [2023-11-18 16:14:36,780 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_power.oepc.i [2023-11-18 16:14:36,795 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-18 16:14:36,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-18 16:14:36,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 327 error locations. [2023-11-18 16:14:36,803 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-18 16:14:37,479 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-18 16:14:37,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 464 transitions, 940 flow [2023-11-18 16:14:37,935 INFO L124 PetriNetUnfolderBase]: 3/461 cut-off events. [2023-11-18 16:14:37,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-18 16:14:37,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 461 events. 3/461 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 3136 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 407. Up to 2 conditions per place. [2023-11-18 16:14:37,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 464 transitions, 940 flow [2023-11-18 16:14:37,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 461 transitions, 931 flow [2023-11-18 16:14:37,981 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-18 16:14:37,990 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 468 places, 461 transitions, 931 flow [2023-11-18 16:14:37,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 468 places, 461 transitions, 931 flow [2023-11-18 16:14:37,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 468 places, 461 transitions, 931 flow [2023-11-18 16:14:38,481 INFO L124 PetriNetUnfolderBase]: 3/461 cut-off events. [2023-11-18 16:14:38,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-18 16:14:38,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 461 events. 3/461 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 3140 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 407. Up to 2 conditions per place. [2023-11-18 16:14:38,521 INFO L119 LiptonReduction]: Number of co-enabled transitions 111948 [2023-11-18 16:14:48,825 WARN L293 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 1797 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-18 16:14:57,009 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 1803 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-18 16:16:26,538 WARN L293 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 1473 DAG size of output: 1072 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-18 16:16:54,545 WARN L293 SmtUtils]: Spent 27.97s on a formula simplification that was a NOOP. DAG size: 1072 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)