./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix020.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/mix020.oepc.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 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:10:16,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:10:16,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:10:16,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:10:16,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:10:16,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:10:16,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:10:16,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:10:16,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:10:16,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:10:16,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:10:16,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:10:16,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:10:16,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:10:16,306 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:10:16,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:10:16,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:10:16,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:10:16,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:10:16,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:10:16,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:10:16,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:10:16,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:10:16,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:10:16,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:10:16,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:10:16,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:10:16,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:10:16,309 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:10:16,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:10:16,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:10:16,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:10:16,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:10:16,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:10:16,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:10:16,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:10:16,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:10:16,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:10:16,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:10:16,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:10:16,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:10:16,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:10:16,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e [2024-11-16 19:10:16,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:10:16,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:10:16,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:10:16,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:10:16,521 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:10:16,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2024-11-16 19:10:17,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:10:17,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:10:17,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2024-11-16 19:10:17,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8b2c9e9/409f0421ba7c47d5b87db6c5f0dc6fb3/FLAGccac4909a [2024-11-16 19:10:18,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8b2c9e9/409f0421ba7c47d5b87db6c5f0dc6fb3 [2024-11-16 19:10:18,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:10:18,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:10:18,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:10:18,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:10:18,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:10:18,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a2c199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18, skipping insertion in model container [2024-11-16 19:10:18,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:10:18,556 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/mix020.oepc.i[945,958] [2024-11-16 19:10:18,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:10:18,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:10:18,726 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/mix020.oepc.i[945,958] [2024-11-16 19:10:18,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:10:18,800 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:10:18,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18 WrapperNode [2024-11-16 19:10:18,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:10:18,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:10:18,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:10:18,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:10:18,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,838 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2024-11-16 19:10:18,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:10:18,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:10:18,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:10:18,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:10:18,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,871 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]. [2024-11-16 19:10:18,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:10:18,882 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:10:18,883 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:10:18,883 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:10:18,883 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (1/1) ... [2024-11-16 19:10:18,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:10:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:10:18,917 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) [2024-11-16 19:10:18,920 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 [2024-11-16 19:10:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:10:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:10:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:10:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:10:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:10:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:10:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:10:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:10:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-16 19:10:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-16 19:10:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:10:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:10:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:10:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:10:18,960 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:10:19,069 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:10:19,070 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:10:19,339 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:10:19,339 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:10:19,479 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:10:19,479 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:10:19,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:10:19 BoogieIcfgContainer [2024-11-16 19:10:19,479 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:10:19,480 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:10:19,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:10:19,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:10:19,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:10:18" (1/3) ... [2024-11-16 19:10:19,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237af9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:10:19, skipping insertion in model container [2024-11-16 19:10:19,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:18" (2/3) ... [2024-11-16 19:10:19,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237af9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:10:19, skipping insertion in model container [2024-11-16 19:10:19,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:10:19" (3/3) ... [2024-11-16 19:10:19,485 INFO L112 eAbstractionObserver]: Analyzing ICFG mix020.oepc.i [2024-11-16 19:10:19,498 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:10:19,498 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:10:19,498 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:10:19,544 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:10:19,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-16 19:10:19,595 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-16 19:10:19,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:10:19,599 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 97 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. [2024-11-16 19:10:19,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-16 19:10:19,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-16 19:10:19,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:10:19,619 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;@1f7124bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:10:19,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 19:10:19,622 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:10:19,622 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-16 19:10:19,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:10:19,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:19,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-16 19:10:19,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:19,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:19,628 INFO L85 PathProgramCache]: Analyzing trace with hash 13275786, now seen corresponding path program 1 times [2024-11-16 19:10:19,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:19,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84975258] [2024-11-16 19:10:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:19,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:20,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:20,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84975258] [2024-11-16 19:10:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84975258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:20,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 19:10:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142527332] [2024-11-16 19:10:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:20,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:10:20,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:20,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:10:20,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:10:20,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:20,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-16 19:10:20,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:20,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:20,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:24,661 INFO L124 PetriNetUnfolderBase]: 45383/59916 cut-off events. [2024-11-16 19:10:24,662 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-16 19:10:24,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119948 conditions, 59916 events. 45383/59916 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 1771. Compared 361111 event pairs, 5603 based on Foata normal form. 1512/61377 useless extension candidates. Maximal degree in co-relation 119936. Up to 51551 conditions per place. [2024-11-16 19:10:24,956 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 63 selfloop transitions, 2 changer transitions 2/73 dead transitions. [2024-11-16 19:10:24,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 301 flow [2024-11-16 19:10:24,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:10:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:10:24,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-16 19:10:24,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6802721088435374 [2024-11-16 19:10:24,966 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 100 transitions. [2024-11-16 19:10:24,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 301 flow [2024-11-16 19:10:24,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:10:24,972 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-16 19:10:24,973 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} [2024-11-16 19:10:24,977 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-16 19:10:24,977 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-16 19:10:24,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-16 19:10:24,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:24,978 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:24,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:10:24,979 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:24,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash -65051935, now seen corresponding path program 1 times [2024-11-16 19:10:24,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:24,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130015226] [2024-11-16 19:10:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:24,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:25,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130015226] [2024-11-16 19:10:25,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130015226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:25,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:25,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:10:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882621801] [2024-11-16 19:10:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:25,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:10:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:10:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:10:25,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:10:25,198 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) [2024-11-16 19:10:25,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:25,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:10:25,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:30,658 INFO L124 PetriNetUnfolderBase]: 57943/77719 cut-off events. [2024-11-16 19:10:30,659 INFO L125 PetriNetUnfolderBase]: For 3054/3054 co-relation queries the response was YES. [2024-11-16 19:10:30,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157563 conditions, 77719 events. 57943/77719 cut-off events. For 3054/3054 co-relation queries the response was YES. Maximal size of possible extension queue 2375. Compared 487646 event pairs, 10709 based on Foata normal form. 0/76276 useless extension candidates. Maximal degree in co-relation 157553. Up to 50347 conditions per place. [2024-11-16 19:10:30,962 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 55 selfloop transitions, 3 changer transitions 97/160 dead transitions. [2024-11-16 19:10:30,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 160 transitions, 658 flow [2024-11-16 19:10:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:10:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:10:30,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-11-16 19:10:30,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5841836734693877 [2024-11-16 19:10:30,965 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 229 transitions. [2024-11-16 19:10:30,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 160 transitions, 658 flow [2024-11-16 19:10:30,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 160 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:10:30,971 INFO L231 Difference]: Finished difference. Result has 63 places, 43 transitions, 125 flow [2024-11-16 19:10:30,972 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=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=125, PETRI_PLACES=63, PETRI_TRANSITIONS=43} [2024-11-16 19:10:30,974 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-16 19:10:30,974 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 43 transitions, 125 flow [2024-11-16 19:10:30,974 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) [2024-11-16 19:10:30,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:30,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:30,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:10:30,975 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:30,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1866933790, now seen corresponding path program 1 times [2024-11-16 19:10:30,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:30,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362965956] [2024-11-16 19:10:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:30,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362965956] [2024-11-16 19:10:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362965956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:31,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:31,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:10:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788477038] [2024-11-16 19:10:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:31,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:10:31,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:31,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:10:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:10:31,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:10:31,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 43 transitions, 125 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) [2024-11-16 19:10:31,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:31,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:10:31,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:35,088 INFO L124 PetriNetUnfolderBase]: 43629/58689 cut-off events. [2024-11-16 19:10:35,088 INFO L125 PetriNetUnfolderBase]: For 29044/29057 co-relation queries the response was YES. [2024-11-16 19:10:35,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137250 conditions, 58689 events. 43629/58689 cut-off events. For 29044/29057 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 346595 event pairs, 9347 based on Foata normal form. 1428/60064 useless extension candidates. Maximal degree in co-relation 137235. Up to 36319 conditions per place. [2024-11-16 19:10:35,355 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 57 selfloop transitions, 2 changer transitions 75/139 dead transitions. [2024-11-16 19:10:35,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 139 transitions, 661 flow [2024-11-16 19:10:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:10:35,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:10:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-11-16 19:10:35,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5685131195335277 [2024-11-16 19:10:35,362 INFO L175 Difference]: Start difference. First operand has 63 places, 43 transitions, 125 flow. Second operand 7 states and 195 transitions. [2024-11-16 19:10:35,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 139 transitions, 661 flow [2024-11-16 19:10:35,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 139 transitions, 648 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-16 19:10:35,641 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 134 flow [2024-11-16 19:10:35,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=54, 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=7, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2024-11-16 19:10:35,642 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-16 19:10:35,642 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 134 flow [2024-11-16 19:10:35,642 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) [2024-11-16 19:10:35,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:35,643 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] [2024-11-16 19:10:35,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:10:35,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:35,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:35,643 INFO L85 PathProgramCache]: Analyzing trace with hash -771042205, now seen corresponding path program 1 times [2024-11-16 19:10:35,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:35,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482649994] [2024-11-16 19:10:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:35,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:35,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482649994] [2024-11-16 19:10:35,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482649994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:35,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:35,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:10:35,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138854500] [2024-11-16 19:10:35,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:35,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:10:35,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:35,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:10:35,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:10:35,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:35,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 134 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) [2024-11-16 19:10:35,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:35,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:35,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:39,047 INFO L124 PetriNetUnfolderBase]: 33145/45217 cut-off events. [2024-11-16 19:10:39,047 INFO L125 PetriNetUnfolderBase]: For 22009/22022 co-relation queries the response was YES. [2024-11-16 19:10:39,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107844 conditions, 45217 events. 33145/45217 cut-off events. For 22009/22022 co-relation queries the response was YES. Maximal size of possible extension queue 1304. Compared 270111 event pairs, 4203 based on Foata normal form. 1513/46696 useless extension candidates. Maximal degree in co-relation 107825. Up to 25543 conditions per place. [2024-11-16 19:10:39,259 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 81 selfloop transitions, 6 changer transitions 1/93 dead transitions. [2024-11-16 19:10:39,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 93 transitions, 454 flow [2024-11-16 19:10:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:10:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:10:39,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-16 19:10:39,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-16 19:10:39,261 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 134 flow. Second operand 4 states and 124 transitions. [2024-11-16 19:10:39,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 93 transitions, 454 flow [2024-11-16 19:10:39,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 93 transitions, 438 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-16 19:10:39,406 INFO L231 Difference]: Finished difference. Result has 60 places, 47 transitions, 164 flow [2024-11-16 19:10:39,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=60, PETRI_TRANSITIONS=47} [2024-11-16 19:10:39,407 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-11-16 19:10:39,407 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 47 transitions, 164 flow [2024-11-16 19:10:39,407 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) [2024-11-16 19:10:39,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:39,407 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] [2024-11-16 19:10:39,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:10:39,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:39,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:39,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1080693736, now seen corresponding path program 1 times [2024-11-16 19:10:39,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:39,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744374994] [2024-11-16 19:10:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:39,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:39,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:39,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744374994] [2024-11-16 19:10:39,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744374994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:39,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:39,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:10:39,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299139493] [2024-11-16 19:10:39,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:39,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:10:39,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:39,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:10:39,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:10:39,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:10:39,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 164 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) [2024-11-16 19:10:39,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:39,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:10:39,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:45,066 INFO L124 PetriNetUnfolderBase]: 50179/67987 cut-off events. [2024-11-16 19:10:45,067 INFO L125 PetriNetUnfolderBase]: For 29265/29272 co-relation queries the response was YES. [2024-11-16 19:10:45,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170656 conditions, 67987 events. 50179/67987 cut-off events. For 29265/29272 co-relation queries the response was YES. Maximal size of possible extension queue 1774. Compared 417602 event pairs, 14281 based on Foata normal form. 1109/69088 useless extension candidates. Maximal degree in co-relation 170639. Up to 33709 conditions per place. [2024-11-16 19:10:45,359 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 79 selfloop transitions, 8 changer transitions 70/162 dead transitions. [2024-11-16 19:10:45,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 162 transitions, 811 flow [2024-11-16 19:10:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:10:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:10:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 222 transitions. [2024-11-16 19:10:45,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5663265306122449 [2024-11-16 19:10:45,361 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 164 flow. Second operand 8 states and 222 transitions. [2024-11-16 19:10:45,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 162 transitions, 811 flow [2024-11-16 19:10:45,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 162 transitions, 788 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-16 19:10:45,376 INFO L231 Difference]: Finished difference. Result has 71 places, 51 transitions, 207 flow [2024-11-16 19:10:45,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=207, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2024-11-16 19:10:45,378 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 14 predicate places. [2024-11-16 19:10:45,379 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 51 transitions, 207 flow [2024-11-16 19:10:45,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-16 19:10:45,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:45,379 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] [2024-11-16 19:10:45,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:10:45,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:45,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:45,381 INFO L85 PathProgramCache]: Analyzing trace with hash 652369116, now seen corresponding path program 1 times [2024-11-16 19:10:45,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:45,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198255149] [2024-11-16 19:10:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:45,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:45,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:45,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:45,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198255149] [2024-11-16 19:10:45,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198255149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:45,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:45,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 19:10:45,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744416457] [2024-11-16 19:10:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:45,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:10:45,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:10:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:10:45,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:10:45,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 51 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2024-11-16 19:10:45,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:45,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:10:45,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand