./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix004.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/mix004.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 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:11:41,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:11:41,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:11:41,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:11:41,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:11:41,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:11:41,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:11:41,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:11:41,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:11:41,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:11:41,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:11:41,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:11:41,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:11:41,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:11:41,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:11:41,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:11:41,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:11:41,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:11:41,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:11:41,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:11:41,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:11:41,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:11:41,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:11:41,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:11:41,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:11:41,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:11:41,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:11:41,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:11:41,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:11:41,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:11:41,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:11:41,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:11:41,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:11:41,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:11:41,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:11:41,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:11:41,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:11:41,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:11:41,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:11:41,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:11:41,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:11:41,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:11:41,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d [2024-11-10 10:11:41,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:11:41,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:11:41,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:11:41,616 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:11:41,616 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:11:41,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix004.opt.i [2024-11-10 10:11:43,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:11:43,505 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:11:43,506 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix004.opt.i [2024-11-10 10:11:43,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9893baf7b/61b966faee7f466d84079fba902577fe/FLAG042835789 [2024-11-10 10:11:43,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9893baf7b/61b966faee7f466d84079fba902577fe [2024-11-10 10:11:43,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:11:43,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:11:43,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:11:43,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:11:43,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:11:43,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:11:43" (1/1) ... [2024-11-10 10:11:43,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c6eb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:43, skipping insertion in model container [2024-11-10 10:11:43,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:11:43" (1/1) ... [2024-11-10 10:11:43,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:11:43,779 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/mix004.opt.i[944,957] [2024-11-10 10:11:44,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:11:44,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:11:44,062 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/mix004.opt.i[944,957] [2024-11-10 10:11:44,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:11:44,153 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:11:44,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44 WrapperNode [2024-11-10 10:11:44,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:11:44,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:11:44,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:11:44,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:11:44,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,219 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2024-11-10 10:11:44,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:11:44,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:11:44,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:11:44,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:11:44,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,267 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 10:11:44,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,282 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:11:44,293 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:11:44,293 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:11:44,293 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:11:44,294 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (1/1) ... [2024-11-10 10:11:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:11:44,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:11:44,325 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 10:11:44,334 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 10:11:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:11:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:11:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:11:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:11:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:11:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:11:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 10:11:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 10:11:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 10:11:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 10:11:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:11:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:11:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:11:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:11:44,377 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 10:11:44,508 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:11:44,510 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:11:44,764 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:11:44,765 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:11:44,961 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:11:44,961 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:11:44,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:11:44 BoogieIcfgContainer [2024-11-10 10:11:44,961 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:11:44,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:11:44,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:11:44,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:11:44,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:11:43" (1/3) ... [2024-11-10 10:11:44,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dde0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:11:44, skipping insertion in model container [2024-11-10 10:11:44,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:11:44" (2/3) ... [2024-11-10 10:11:44,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dde0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:11:44, skipping insertion in model container [2024-11-10 10:11:45,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:11:44" (3/3) ... [2024-11-10 10:11:45,004 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2024-11-10 10:11:45,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:11:45,025 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:11:45,025 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:11:45,093 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:11:45,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2024-11-10 10:11:45,156 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-10 10:11:45,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:11:45,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-10 10:11:45,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2024-11-10 10:11:45,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2024-11-10 10:11:45,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:11:45,182 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;@505891db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:11:45,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 10:11:45,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:11:45,191 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-10 10:11:45,191 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:11:45,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:11:45,192 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:11:45,192 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 10:11:45,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:11:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash 562658844, now seen corresponding path program 1 times [2024-11-10 10:11:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:11:45,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864060344] [2024-11-10 10:11:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:11:45,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:11:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:11:45,664 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 10:11:45,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:11:45,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864060344] [2024-11-10 10:11:45,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864060344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:11:45,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:11:45,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 10:11:45,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522690895] [2024-11-10 10:11:45,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:11:45,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:11:45,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:11:45,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:11:45,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:11:45,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2024-11-10 10:11:45,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 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 10:11:45,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:11:45,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2024-11-10 10:11:45,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:11:51,685 INFO L124 PetriNetUnfolderBase]: 53315/70323 cut-off events. [2024-11-10 10:11:51,685 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-10 10:11:51,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140699 conditions, 70323 events. 53315/70323 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 1961. Compared 407231 event pairs, 6875 based on Foata normal form. 1764/72030 useless extension candidates. Maximal degree in co-relation 140687. Up to 60049 conditions per place. [2024-11-10 10:11:52,029 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 58 selfloop transitions, 2 changer transitions 2/68 dead transitions. [2024-11-10 10:11:52,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 68 transitions, 272 flow [2024-11-10 10:11:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:11:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:11:52,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-11-10 10:11:52,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-10 10:11:52,044 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 95 transitions. [2024-11-10 10:11:52,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 68 transitions, 272 flow [2024-11-10 10:11:52,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 68 transitions, 268 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 10:11:52,058 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2024-11-10 10:11:52,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-10 10:11:52,063 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2024-11-10 10:11:52,063 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2024-11-10 10:11:52,063 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 10:11:52,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:11:52,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:11:52,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:11:52,064 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 10:11:52,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:11:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash 676846064, now seen corresponding path program 1 times [2024-11-10 10:11:52,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:11:52,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121387603] [2024-11-10 10:11:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:11:52,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:11:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:11:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:11:52,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:11:52,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121387603] [2024-11-10 10:11:52,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121387603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:11:52,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:11:52,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:11:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617335151] [2024-11-10 10:11:52,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:11:52,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:11:52,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:11:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:11:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:11:52,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:11:52,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 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 10:11:52,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:11:52,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:11:52,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:11:59,380 INFO L124 PetriNetUnfolderBase]: 69203/92659 cut-off events. [2024-11-10 10:11:59,383 INFO L125 PetriNetUnfolderBase]: For 2992/2992 co-relation queries the response was YES. [2024-11-10 10:11:59,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187141 conditions, 92659 events. 69203/92659 cut-off events. For 2992/2992 co-relation queries the response was YES. Maximal size of possible extension queue 2665. Compared 572473 event pairs, 35807 based on Foata normal form. 0/90894 useless extension candidates. Maximal degree in co-relation 187131. Up to 61525 conditions per place. [2024-11-10 10:11:59,823 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 50 selfloop transitions, 5 changer transitions 88/148 dead transitions. [2024-11-10 10:11:59,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 148 transitions, 612 flow [2024-11-10 10:11:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:11:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:11:59,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 217 transitions. [2024-11-10 10:11:59,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5425 [2024-11-10 10:11:59,827 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 217 transitions. [2024-11-10 10:11:59,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 148 transitions, 612 flow [2024-11-10 10:11:59,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 148 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:11:59,837 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 149 flow [2024-11-10 10:11:59,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=149, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2024-11-10 10:11:59,838 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2024-11-10 10:11:59,838 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 149 flow [2024-11-10 10:11:59,839 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 10:11:59,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:11:59,840 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 10:11:59,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:11:59,841 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 10:11:59,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:11:59,842 INFO L85 PathProgramCache]: Analyzing trace with hash -235725852, now seen corresponding path program 1 times [2024-11-10 10:11:59,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:11:59,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196800563] [2024-11-10 10:11:59,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:11:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:11:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:00,111 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 10:12:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:00,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196800563] [2024-11-10 10:12:00,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196800563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:00,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:00,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:12:00,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103298222] [2024-11-10 10:12:00,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:00,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:12:00,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:12:00,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:12:00,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:12:00,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 10:12:00,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:00,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:12:00,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:07,351 INFO L124 PetriNetUnfolderBase]: 52299/70177 cut-off events. [2024-11-10 10:12:07,352 INFO L125 PetriNetUnfolderBase]: For 52957/52957 co-relation queries the response was YES. [2024-11-10 10:12:07,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178268 conditions, 70177 events. 52299/70177 cut-off events. For 52957/52957 co-relation queries the response was YES. Maximal size of possible extension queue 1962. Compared 425531 event pairs, 10779 based on Foata normal form. 1708/71842 useless extension candidates. Maximal degree in co-relation 178253. Up to 44905 conditions per place. [2024-11-10 10:12:07,813 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 60 selfloop transitions, 3 changer transitions 79/147 dead transitions. [2024-11-10 10:12:07,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 147 transitions, 749 flow [2024-11-10 10:12:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:12:07,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:12:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 203 transitions. [2024-11-10 10:12:07,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58 [2024-11-10 10:12:07,818 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 149 flow. Second operand 7 states and 203 transitions. [2024-11-10 10:12:07,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 147 transitions, 749 flow [2024-11-10 10:12:09,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 147 transitions, 736 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-10 10:12:09,184 INFO L231 Difference]: Finished difference. Result has 66 places, 46 transitions, 159 flow [2024-11-10 10:12:09,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=159, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2024-11-10 10:12:09,185 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2024-11-10 10:12:09,185 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 46 transitions, 159 flow [2024-11-10 10:12:09,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 10:12:09,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:09,185 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 10:12:09,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:12:09,186 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 10:12:09,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:09,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1214779280, now seen corresponding path program 1 times [2024-11-10 10:12:09,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:09,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985568287] [2024-11-10 10:12:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:09,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:09,460 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 10:12:09,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:09,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985568287] [2024-11-10 10:12:09,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985568287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:09,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:09,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:12:09,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585978535] [2024-11-10 10:12:09,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:09,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:12:09,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:09,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:12:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:12:09,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2024-11-10 10:12:09,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 46 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 10:12:09,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:09,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2024-11-10 10:12:09,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:15,433 INFO L124 PetriNetUnfolderBase]: 45755/61317 cut-off events. [2024-11-10 10:12:15,433 INFO L125 PetriNetUnfolderBase]: For 60575/60575 co-relation queries the response was YES. [2024-11-10 10:12:15,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159758 conditions, 61317 events. 45755/61317 cut-off events. For 60575/60575 co-relation queries the response was YES. Maximal size of possible extension queue 1563. Compared 354922 event pairs, 10095 based on Foata normal form. 1260/62534 useless extension candidates. Maximal degree in co-relation 159739. Up to 38761 conditions per place. [2024-11-10 10:12:15,840 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 58 selfloop transitions, 3 changer transitions 71/137 dead transitions. [2024-11-10 10:12:15,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 137 transitions, 702 flow [2024-11-10 10:12:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:12:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:12:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2024-11-10 10:12:15,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5514285714285714 [2024-11-10 10:12:15,843 INFO L175 Difference]: Start difference. First operand has 66 places, 46 transitions, 159 flow. Second operand 7 states and 193 transitions. [2024-11-10 10:12:15,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 137 transitions, 702 flow [2024-11-10 10:12:16,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 137 transitions, 678 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-10 10:12:16,570 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 164 flow [2024-11-10 10:12:16,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=164, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-11-10 10:12:16,571 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2024-11-10 10:12:16,571 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 164 flow [2024-11-10 10:12:16,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 10:12:16,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:16,572 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] [2024-11-10 10:12:16,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:12:16,572 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 10:12:16,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash -190374423, now seen corresponding path program 1 times [2024-11-10 10:12:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339074963] [2024-11-10 10:12:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:16,783 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 10:12:16,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:16,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339074963] [2024-11-10 10:12:16,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339074963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:16,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:16,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:12:16,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687073419] [2024-11-10 10:12:16,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:16,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:12:16,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:16,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:12:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:12:16,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2024-11-10 10:12:16,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 10:12:16,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:16,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2024-11-10 10:12:16,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:12:20,423 INFO L124 PetriNetUnfolderBase]: 36351/49377 cut-off events. [2024-11-10 10:12:20,424 INFO L125 PetriNetUnfolderBase]: For 45897/45897 co-relation queries the response was YES. [2024-11-10 10:12:20,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128271 conditions, 49377 events. 36351/49377 cut-off events. For 45897/45897 co-relation queries the response was YES. Maximal size of possible extension queue 1329. Compared 292332 event pairs, 4831 based on Foata normal form. 1764/51106 useless extension candidates. Maximal degree in co-relation 128251. Up to 26545 conditions per place. [2024-11-10 10:12:20,951 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 82 selfloop transitions, 6 changer transitions 1/94 dead transitions. [2024-11-10 10:12:20,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 94 transitions, 500 flow [2024-11-10 10:12:20,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:12:20,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:12:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-10 10:12:20,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.635 [2024-11-10 10:12:20,955 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 164 flow. Second operand 4 states and 127 transitions. [2024-11-10 10:12:20,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 94 transitions, 500 flow [2024-11-10 10:12:21,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 94 transitions, 482 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-10 10:12:21,150 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 192 flow [2024-11-10 10:12:21,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2024-11-10 10:12:21,150 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2024-11-10 10:12:21,150 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 192 flow [2024-11-10 10:12:21,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 10:12:21,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:12:21,151 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, 1] [2024-11-10 10:12:21,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:12:21,151 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 10:12:21,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:12:21,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1451513436, now seen corresponding path program 1 times [2024-11-10 10:12:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:12:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918010195] [2024-11-10 10:12:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:12:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:12:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:12:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:12:21,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:12:21,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918010195] [2024-11-10 10:12:21,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918010195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:12:21,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:12:21,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:12:21,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132805800] [2024-11-10 10:12:21,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:12:21,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:12:21,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:12:21,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:12:21,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:12:21,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2024-11-10 10:12:21,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 10:12:21,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:12:21,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2024-11-10 10:12:21,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand