./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix018.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/mix018.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:12:52,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:12:52,121 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:12:52,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:12:52,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:12:52,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:12:52,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:12:52,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:12:52,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:12:52,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:12:52,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:12:52,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:12:52,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:12:52,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:12:52,171 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:12:52,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:12:52,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:12:52,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:12:52,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:12:52,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:12:52,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:12:52,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:12:52,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:12:52,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:12:52,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:12:52,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:12:52,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:12:52,177 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:12:52,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:12:52,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:12:52,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:12:52,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:12:52,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:12:52,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:12:52,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:12:52,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:12:52,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:12:52,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:12:52,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:12:52,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:12:52,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:12:52,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:12:52,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 [2024-11-10 10:12:52,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:12:52,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:12:52,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:12:52,519 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:12:52,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:12:52,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix018.opt.i [2024-11-10 10:12:54,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:12:54,374 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:12:54,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018.opt.i [2024-11-10 10:12:54,398 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fcdeed3/9aa732a2085d44b6826b5b15ad966f8e/FLAGcfad7eed9 [2024-11-10 10:12:54,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fcdeed3/9aa732a2085d44b6826b5b15ad966f8e [2024-11-10 10:12:54,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:12:54,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:12:54,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:12:54,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:12:54,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:12:54,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:12:54" (1/1) ... [2024-11-10 10:12:54,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6140b4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:54, skipping insertion in model container [2024-11-10 10:12:54,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:12:54" (1/1) ... [2024-11-10 10:12:54,489 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:12:54,741 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018.opt.i[944,957] [2024-11-10 10:12:54,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:12:54,993 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:12:55,006 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018.opt.i[944,957] [2024-11-10 10:12:55,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:12:55,117 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:12:55,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55 WrapperNode [2024-11-10 10:12:55,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:12:55,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:12:55,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:12:55,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:12:55,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,196 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2024-11-10 10:12:55,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:12:55,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:12:55,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:12:55,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:12:55,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,246 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 10:12:55,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:12:55,272 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:12:55,275 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:12:55,275 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:12:55,276 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (1/1) ... [2024-11-10 10:12:55,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:12:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:12:55,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:12:55,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:12:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:12:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:12:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:12:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:12:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:12:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:12:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 10:12:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 10:12:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 10:12:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 10:12:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:12:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:12:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:12:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:12:55,380 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:12:55,539 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:12:55,541 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:12:55,894 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:12:55,895 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:12:56,189 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:12:56,191 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:12:56,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:12:56 BoogieIcfgContainer [2024-11-10 10:12:56,191 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:12:56,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:12:56,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:12:56,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:12:56,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:12:54" (1/3) ... [2024-11-10 10:12:56,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf4db28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:12:56, skipping insertion in model container [2024-11-10 10:12:56,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:12:55" (2/3) ... [2024-11-10 10:12:56,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf4db28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:12:56, skipping insertion in model container [2024-11-10 10:12:56,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:12:56" (3/3) ... [2024-11-10 10:12:56,207 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018.opt.i [2024-11-10 10:12:56,224 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:12:56,224 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:12:56,225 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:12:56,295 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:12:56,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-10 10:12:56,378 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-10 10:12:56,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:12:56,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-10 10:12:56,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-10 10:12:56,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-10 10:12:56,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:12:56,409 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;@78827aa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:12:56,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 10:12:56,419 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:12:56,419 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-10 10:12:56,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:12:56,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:56,420 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:12:56,421 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:12:56,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:56,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2058399156, now seen corresponding path program 1 times [2024-11-10 10:12:56,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:56,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277689785] [2024-11-10 10:12:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:56,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277689785] [2024-11-10 10:12:57,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277689785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:57,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:57,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 10:12:57,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982786836] [2024-11-10 10:12:57,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:57,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:12:57,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:12:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:12:57,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-10 10:12:57,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:12:57,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:57,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-10 10:12:57,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:03,637 INFO L124 PetriNetUnfolderBase]: 45383/59999 cut-off events. [2024-11-10 10:13:03,637 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2024-11-10 10:13:03,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120031 conditions, 59999 events. 45383/59999 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 1775. Compared 344816 event pairs, 5855 based on Foata normal form. 1512/61420 useless extension candidates. Maximal degree in co-relation 120019. Up to 51193 conditions per place. [2024-11-10 10:13:04,303 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 56 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-11-10 10:13:04,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 66 transitions, 264 flow [2024-11-10 10:13:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:13:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:13:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-11-10 10:13:04,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-10 10:13:04,319 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 93 transitions. [2024-11-10 10:13:04,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 66 transitions, 264 flow [2024-11-10 10:13:04,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 66 transitions, 260 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 10:13:04,336 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-10 10:13:04,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-10 10:13:04,343 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-10 10:13:04,344 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-10 10:13:04,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:04,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:04,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:04,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:13:04,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:04,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:04,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1940397430, now seen corresponding path program 1 times [2024-11-10 10:13:04,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:04,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656232318] [2024-11-10 10:13:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:04,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:04,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656232318] [2024-11-10 10:13:04,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656232318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:04,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:04,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:13:04,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755179910] [2024-11-10 10:13:04,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:04,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:13:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:13:04,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:13:04,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-10 10:13:04,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:04,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:04,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-10 10:13:04,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:14,928 INFO L124 PetriNetUnfolderBase]: 96365/128783 cut-off events. [2024-11-10 10:13:14,928 INFO L125 PetriNetUnfolderBase]: For 4176/4176 co-relation queries the response was YES. [2024-11-10 10:13:15,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260939 conditions, 128783 events. 96365/128783 cut-off events. For 4176/4176 co-relation queries the response was YES. Maximal size of possible extension queue 3819. Compared 832123 event pairs, 29071 based on Foata normal form. 0/126164 useless extension candidates. Maximal degree in co-relation 260929. Up to 56301 conditions per place. [2024-11-10 10:13:15,551 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 60 selfloop transitions, 7 changer transitions 131/203 dead transitions. [2024-11-10 10:13:15,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 203 transitions, 832 flow [2024-11-10 10:13:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:13:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:13:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 281 transitions. [2024-11-10 10:13:15,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63718820861678 [2024-11-10 10:13:15,555 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 9 states and 281 transitions. [2024-11-10 10:13:15,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 203 transitions, 832 flow [2024-11-10 10:13:15,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 203 transitions, 814 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:13:15,780 INFO L231 Difference]: Finished difference. Result has 67 places, 47 transitions, 188 flow [2024-11-10 10:13:15,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=188, PETRI_PLACES=67, PETRI_TRANSITIONS=47} [2024-11-10 10:13:15,781 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-10 10:13:15,781 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 188 flow [2024-11-10 10:13:15,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:15,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:15,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:15,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:13:15,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:15,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1360545421, now seen corresponding path program 1 times [2024-11-10 10:13:15,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:15,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088144169] [2024-11-10 10:13:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:15,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:15,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088144169] [2024-11-10 10:13:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088144169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:15,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:15,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:13:15,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539168971] [2024-11-10 10:13:15,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:15,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:13:15,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:15,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:13:15,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:13:15,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-10 10:13:15,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:15,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:15,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-10 10:13:15,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:24,206 INFO L124 PetriNetUnfolderBase]: 71677/97045 cut-off events. [2024-11-10 10:13:24,206 INFO L125 PetriNetUnfolderBase]: For 100483/100485 co-relation queries the response was YES. [2024-11-10 10:13:24,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266469 conditions, 97045 events. 71677/97045 cut-off events. For 100483/100485 co-relation queries the response was YES. Maximal size of possible extension queue 2722. Compared 611530 event pairs, 18929 based on Foata normal form. 2380/99346 useless extension candidates. Maximal degree in co-relation 266451. Up to 60681 conditions per place. [2024-11-10 10:13:24,729 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 61 selfloop transitions, 3 changer transitions 91/160 dead transitions. [2024-11-10 10:13:24,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 160 transitions, 982 flow [2024-11-10 10:13:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:13:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:13:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-11-10 10:13:24,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5685131195335277 [2024-11-10 10:13:24,732 INFO L175 Difference]: Start difference. First operand has 67 places, 47 transitions, 188 flow. Second operand 7 states and 195 transitions. [2024-11-10 10:13:24,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 160 transitions, 982 flow [2024-11-10 10:13:26,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 160 transitions, 862 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-11-10 10:13:26,104 INFO L231 Difference]: Finished difference. Result has 67 places, 47 transitions, 177 flow [2024-11-10 10:13:26,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=177, PETRI_PLACES=67, PETRI_TRANSITIONS=47} [2024-11-10 10:13:26,105 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-10 10:13:26,105 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 177 flow [2024-11-10 10:13:26,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:26,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:26,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:26,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:13:26,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:26,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1562818352, now seen corresponding path program 1 times [2024-11-10 10:13:26,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:26,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187013261] [2024-11-10 10:13:26,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:26,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:26,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187013261] [2024-11-10 10:13:26,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187013261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:26,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:26,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:13:26,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258726620] [2024-11-10 10:13:26,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:26,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:13:26,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:26,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:13:26,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:13:26,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-10 10:13:26,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:26,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:26,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-10 10:13:26,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:33,677 INFO L124 PetriNetUnfolderBase]: 66137/89559 cut-off events. [2024-11-10 10:13:33,678 INFO L125 PetriNetUnfolderBase]: For 79309/79311 co-relation queries the response was YES. [2024-11-10 10:13:34,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235724 conditions, 89559 events. 66137/89559 cut-off events. For 79309/79311 co-relation queries the response was YES. Maximal size of possible extension queue 2381. Compared 563896 event pairs, 33873 based on Foata normal form. 1792/91345 useless extension candidates. Maximal degree in co-relation 235703. Up to 73053 conditions per place. [2024-11-10 10:13:34,721 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 64 selfloop transitions, 5 changer transitions 73/147 dead transitions. [2024-11-10 10:13:34,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 147 transitions, 829 flow [2024-11-10 10:13:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:13:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:13:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-10 10:13:34,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5539358600583091 [2024-11-10 10:13:34,723 INFO L175 Difference]: Start difference. First operand has 67 places, 47 transitions, 177 flow. Second operand 7 states and 190 transitions. [2024-11-10 10:13:34,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 147 transitions, 829 flow [2024-11-10 10:13:38,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 147 transitions, 799 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-10 10:13:38,270 INFO L231 Difference]: Finished difference. Result has 66 places, 50 transitions, 214 flow [2024-11-10 10:13:38,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=214, PETRI_PLACES=66, PETRI_TRANSITIONS=50} [2024-11-10 10:13:38,271 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2024-11-10 10:13:38,271 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 214 flow [2024-11-10 10:13:38,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:38,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:38,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:38,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:13:38,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:38,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:38,273 INFO L85 PathProgramCache]: Analyzing trace with hash -902273745, now seen corresponding path program 1 times [2024-11-10 10:13:38,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:38,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050407295] [2024-11-10 10:13:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:38,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:38,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:38,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050407295] [2024-11-10 10:13:38,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050407295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:38,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:38,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:13:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413665947] [2024-11-10 10:13:38,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:38,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:13:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:38,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:13:38,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:13:38,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-10 10:13:38,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:38,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:38,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-10 10:13:38,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:43,791 INFO L124 PetriNetUnfolderBase]: 53297/73007 cut-off events. [2024-11-10 10:13:43,791 INFO L125 PetriNetUnfolderBase]: For 84474/84480 co-relation queries the response was YES. [2024-11-10 10:13:44,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197173 conditions, 73007 events. 53297/73007 cut-off events. For 84474/84480 co-relation queries the response was YES. Maximal size of possible extension queue 2043. Compared 463037 event pairs, 6981 based on Foata normal form. 2504/75465 useless extension candidates. Maximal degree in co-relation 197153. Up to 40981 conditions per place. [2024-11-10 10:13:44,293 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 98 selfloop transitions, 6 changer transitions 1/110 dead transitions. [2024-11-10 10:13:44,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 110 transitions, 694 flow [2024-11-10 10:13:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:13:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:13:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-10 10:13:44,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-10 10:13:44,295 INFO L175 Difference]: Start difference. First operand has 66 places, 50 transitions, 214 flow. Second operand 4 states and 124 transitions. [2024-11-10 10:13:44,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 110 transitions, 694 flow [2024-11-10 10:13:44,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 681 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 10:13:44,623 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 247 flow [2024-11-10 10:13:44,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2024-11-10 10:13:44,624 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2024-11-10 10:13:44,624 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 247 flow [2024-11-10 10:13:44,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:44,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:44,625 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:44,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:13:44,625 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:44,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash 873219557, now seen corresponding path program 1 times [2024-11-10 10:13:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:44,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904781614] [2024-11-10 10:13:44,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:44,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:44,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904781614] [2024-11-10 10:13:44,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904781614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:44,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:44,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:13:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767266620] [2024-11-10 10:13:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:44,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:13:44,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:44,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:13:44,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:13:44,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-10 10:13:44,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:13:44,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:44,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-10 10:13:44,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand