./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:22:12,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:22:12,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:22:12,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:22:12,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:22:12,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:22:12,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:22:12,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:22:12,364 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:22:12,364 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:22:12,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:22:12,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:22:12,366 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:22:12,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:22:12,367 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:22:12,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:22:12,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:22:12,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:22:12,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:22:12,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:22:12,369 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:22:12,371 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:22:12,371 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:22:12,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:22:12,371 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:22:12,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:22:12,372 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:22:12,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:22:12,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:22:12,373 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:22:12,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:22:12,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:22:12,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:22:12,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:22:12,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:22:12,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:22:12,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:22:12,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:22:12,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:22:12,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:22:12,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:22:12,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:22:12,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 [2024-11-17 03:22:12,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:22:12,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:22:12,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:22:12,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:22:12,657 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:22:12,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-11-17 03:22:14,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:22:14,355 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:22:14,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-11-17 03:22:14,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0000f47/a70fec34304e4ab5bfc49e4f937808d1/FLAGf89e72c76 [2024-11-17 03:22:14,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0000f47/a70fec34304e4ab5bfc49e4f937808d1 [2024-11-17 03:22:14,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:22:14,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:22:14,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:22:14,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:22:14,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:22:14,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:22:14" (1/1) ... [2024-11-17 03:22:14,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e74cd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:14, skipping insertion in model container [2024-11-17 03:22:14,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:22:14" (1/1) ... [2024-11-17 03:22:14,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:22:15,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:22:15,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:22:15,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:22:15,283 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:22:15,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15 WrapperNode [2024-11-17 03:22:15,283 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:22:15,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:22:15,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:22:15,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:22:15,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,333 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2024-11-17 03:22:15,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:22:15,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:22:15,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:22:15,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:22:15,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,374 INFO L175 MemorySlicer]: Split 23 memory accesses to 2 slices as follows [2, 21]. 91 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 7 writes are split as follows [0, 7]. [2024-11-17 03:22:15,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,385 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:22:15,396 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:22:15,396 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:22:15,397 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:22:15,398 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (1/1) ... [2024-11-17 03:22:15,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:22:15,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:22:15,444 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) [2024-11-17 03:22:15,451 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 [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:22:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:22:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:22:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:22:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:22:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:22:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:22:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:22:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:22:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:22:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:22:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:22:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:22:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:22:15,507 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:22:15,684 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:22:15,685 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:22:16,314 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:22:16,315 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:22:16,864 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:22:16,865 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:22:16,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:22:16 BoogieIcfgContainer [2024-11-17 03:22:16,866 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:22:16,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:22:16,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:22:16,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:22:16,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:22:14" (1/3) ... [2024-11-17 03:22:16,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ab3a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:22:16, skipping insertion in model container [2024-11-17 03:22:16,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:15" (2/3) ... [2024-11-17 03:22:16,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ab3a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:22:16, skipping insertion in model container [2024-11-17 03:22:16,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:22:16" (3/3) ... [2024-11-17 03:22:16,875 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2024-11-17 03:22:16,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:22:16,895 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-17 03:22:16,895 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:22:17,063 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:22:17,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 90 transitions, 196 flow [2024-11-17 03:22:17,198 INFO L124 PetriNetUnfolderBase]: 2/86 cut-off events. [2024-11-17 03:22:17,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:17,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 340 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2024-11-17 03:22:17,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 90 transitions, 196 flow [2024-11-17 03:22:17,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 86 transitions, 184 flow [2024-11-17 03:22:17,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:22:17,233 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=None, 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;@2664d903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:22:17,234 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-17 03:22:17,239 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:22:17,239 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 03:22:17,239 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:17,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:17,240 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:22:17,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:22:17,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:17,246 INFO L85 PathProgramCache]: Analyzing trace with hash 26204169, now seen corresponding path program 1 times [2024-11-17 03:22:17,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:17,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616075336] [2024-11-17 03:22:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:17,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:22:17,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:17,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616075336] [2024-11-17 03:22:17,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616075336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:17,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:17,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:22:17,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66644183] [2024-11-17 03:22:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:17,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:22:17,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:17,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:22:17,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:22:17,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 90 [2024-11-17 03:22:17,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 184 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) [2024-11-17 03:22:17,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:17,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 90 [2024-11-17 03:22:17,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:32,734 INFO L124 PetriNetUnfolderBase]: 92403/128306 cut-off events. [2024-11-17 03:22:32,735 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-11-17 03:22:33,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249306 conditions, 128306 events. 92403/128306 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 4651. Compared 917828 event pairs, 92403 based on Foata normal form. 3920/106044 useless extension candidates. Maximal degree in co-relation 249294. Up to 120418 conditions per place. [2024-11-17 03:22:33,707 INFO L140 encePairwiseOnDemand]: 56/90 looper letters, 43 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2024-11-17 03:22:33,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 52 transitions, 204 flow [2024-11-17 03:22:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:22:33,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:22:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-11-17 03:22:33,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4185185185185185 [2024-11-17 03:22:33,719 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 184 flow. Second operand 3 states and 113 transitions. [2024-11-17 03:22:33,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 52 transitions, 204 flow [2024-11-17 03:22:33,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 52 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:22:33,730 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 114 flow [2024-11-17 03:22:33,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-11-17 03:22:33,736 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -34 predicate places. [2024-11-17 03:22:33,736 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 114 flow [2024-11-17 03:22:33,737 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) [2024-11-17 03:22:33,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:33,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:22:33,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:22:33,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:22:33,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash 26204170, now seen corresponding path program 1 times [2024-11-17 03:22:33,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:33,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075841712] [2024-11-17 03:22:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:33,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:22:33,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:33,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075841712] [2024-11-17 03:22:33,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075841712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:33,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:33,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:22:33,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444897836] [2024-11-17 03:22:33,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:33,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:22:33,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:33,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:22:33,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:22:33,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 90 [2024-11-17 03:22:33,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 114 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) [2024-11-17 03:22:33,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:33,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 90 [2024-11-17 03:22:33,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:39,390 INFO L124 PetriNetUnfolderBase]: 35377/50249 cut-off events. [2024-11-17 03:22:39,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:39,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97297 conditions, 50249 events. 35377/50249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1688. Compared 332097 event pairs, 35377 based on Foata normal form. 0/48413 useless extension candidates. Maximal degree in co-relation 97291. Up to 46610 conditions per place. [2024-11-17 03:22:39,746 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 35 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-17 03:22:39,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 174 flow [2024-11-17 03:22:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:22:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:22:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-17 03:22:39,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2962962962962963 [2024-11-17 03:22:39,751 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 114 flow. Second operand 3 states and 80 transitions. [2024-11-17 03:22:39,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 174 flow [2024-11-17 03:22:39,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 45 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:22:39,754 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 99 flow [2024-11-17 03:22:39,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2024-11-17 03:22:39,755 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -40 predicate places. [2024-11-17 03:22:39,755 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 99 flow [2024-11-17 03:22:39,756 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) [2024-11-17 03:22:39,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:39,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:39,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:22:39,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:22:39,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:39,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1075417308, now seen corresponding path program 1 times [2024-11-17 03:22:39,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:39,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445202623] [2024-11-17 03:22:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:39,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:22:39,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:39,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445202623] [2024-11-17 03:22:39,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445202623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:39,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:39,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:22:39,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585685925] [2024-11-17 03:22:39,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:39,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:22:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:39,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:22:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:22:39,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 90 [2024-11-17 03:22:39,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-17 03:22:39,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:39,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 90 [2024-11-17 03:22:39,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:44,104 INFO L124 PetriNetUnfolderBase]: 31407/42050 cut-off events. [2024-11-17 03:22:44,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:44,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83929 conditions, 42050 events. 31407/42050 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1411. Compared 252381 event pairs, 4442 based on Foata normal form. 0/40543 useless extension candidates. Maximal degree in co-relation 83922. Up to 36776 conditions per place. [2024-11-17 03:22:44,349 INFO L140 encePairwiseOnDemand]: 86/90 looper letters, 61 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2024-11-17 03:22:44,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 285 flow [2024-11-17 03:22:44,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:22:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:22:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-17 03:22:44,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37407407407407406 [2024-11-17 03:22:44,351 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 99 flow. Second operand 3 states and 101 transitions. [2024-11-17 03:22:44,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 285 flow [2024-11-17 03:22:44,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 71 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:22:44,353 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 108 flow [2024-11-17 03:22:44,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=55, 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=108, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2024-11-17 03:22:44,354 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -39 predicate places. [2024-11-17 03:22:44,354 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 108 flow [2024-11-17 03:22:44,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-17 03:22:44,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:44,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:44,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:22:44,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:22:44,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:44,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1611018933, now seen corresponding path program 1 times [2024-11-17 03:22:44,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:44,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665317678] [2024-11-17 03:22:44,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:44,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:22:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:44,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665317678] [2024-11-17 03:22:44,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665317678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:44,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:44,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:22:44,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89153833] [2024-11-17 03:22:44,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:44,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:22:44,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:44,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:22:44,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:22:44,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 90 [2024-11-17 03:22:44,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:22:44,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:44,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 90 [2024-11-17 03:22:44,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:48,591 INFO L124 PetriNetUnfolderBase]: 28982/38875 cut-off events. [2024-11-17 03:22:48,591 INFO L125 PetriNetUnfolderBase]: For 2022/2022 co-relation queries the response was YES. [2024-11-17 03:22:48,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81175 conditions, 38875 events. 28982/38875 cut-off events. For 2022/2022 co-relation queries the response was YES. Maximal size of possible extension queue 1293. Compared 232564 event pairs, 3842 based on Foata normal form. 0/38868 useless extension candidates. Maximal degree in co-relation 81166. Up to 33600 conditions per place. [2024-11-17 03:22:48,827 INFO L140 encePairwiseOnDemand]: 87/90 looper letters, 60 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-11-17 03:22:48,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 70 transitions, 288 flow [2024-11-17 03:22:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:22:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:22:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-17 03:22:48,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30833333333333335 [2024-11-17 03:22:48,833 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 108 flow. Second operand 4 states and 111 transitions. [2024-11-17 03:22:48,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 70 transitions, 288 flow [2024-11-17 03:22:48,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 70 transitions, 284 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:22:48,835 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 104 flow [2024-11-17 03:22:48,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=100, 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=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2024-11-17 03:22:48,836 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -39 predicate places. [2024-11-17 03:22:48,836 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 104 flow [2024-11-17 03:22:48,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:22:48,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:48,838 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:48,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:22:48,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:22:48,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:48,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1611018932, now seen corresponding path program 1 times [2024-11-17 03:22:48,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:48,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545195696] [2024-11-17 03:22:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:48,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:22:49,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:49,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545195696] [2024-11-17 03:22:49,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545195696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:49,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:49,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:22:49,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600151927] [2024-11-17 03:22:49,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:49,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:22:49,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:49,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:22:49,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:22:49,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 90 [2024-11-17 03:22:49,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:22:49,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:49,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 90 [2024-11-17 03:22:49,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:52,810 INFO L124 PetriNetUnfolderBase]: 26557/35700 cut-off events. [2024-11-17 03:22:52,811 INFO L125 PetriNetUnfolderBase]: For 2022/2022 co-relation queries the response was YES. [2024-11-17 03:22:52,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74075 conditions, 35700 events. 26557/35700 cut-off events. For 2022/2022 co-relation queries the response was YES. Maximal size of possible extension queue 1176. Compared 213027 event pairs, 3242 based on Foata normal form. 750/36443 useless extension candidates. Maximal degree in co-relation 74066. Up to 30425 conditions per place. [2024-11-17 03:22:52,960 INFO L140 encePairwiseOnDemand]: 87/90 looper letters, 59 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-11-17 03:22:52,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 282 flow [2024-11-17 03:22:52,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:22:52,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:22:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-17 03:22:52,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3055555555555556 [2024-11-17 03:22:52,962 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 104 flow. Second operand 4 states and 110 transitions. [2024-11-17 03:22:52,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 69 transitions, 282 flow [2024-11-17 03:22:52,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 69 transitions, 277 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 03:22:52,964 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 99 flow [2024-11-17 03:22:52,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2024-11-17 03:22:52,965 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -40 predicate places. [2024-11-17 03:22:52,965 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 99 flow [2024-11-17 03:22:52,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:22:52,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:52,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:52,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:22:52,966 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2024-11-17 03:22:52,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:52,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2037947313, now seen corresponding path program 1 times [2024-11-17 03:22:52,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:52,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223734870] [2024-11-17 03:22:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:22:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223734870] [2024-11-17 03:22:53,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223734870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:53,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:53,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:22:53,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288721689] [2024-11-17 03:22:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:53,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:22:53,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:53,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:22:53,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:22:53,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 90 [2024-11-17 03:22:53,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-17 03:22:53,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:53,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 90 [2024-11-17 03:22:53,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand