./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-hard1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/test-hard1.wvr.c -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 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:23:43,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:23:43,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:23:43,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:23:43,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:23:43,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:23:43,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:23:43,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:23:43,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:23:43,823 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:23:43,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:23:43,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:23:43,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:23:43,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:23:43,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:23:43,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:23:43,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:23:43,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:23:43,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:23:43,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:23:43,826 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:23:43,827 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:23:43,828 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:23:43,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:23:43,829 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:23:43,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:23:43,830 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:23:43,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:23:43,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:23:43,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:23:43,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:23:43,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:23:43,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:23:43,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:23:43,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:23:43,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:23:43,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:23:43,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:23:43,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:23:43,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:23:43,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:23:43,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:23:43,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 [2024-11-10 18:23:44,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:23:44,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:23:44,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:23:44,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:23:44,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:23:44,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-hard1.wvr.c [2024-11-10 18:23:45,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:23:45,689 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:23:45,693 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-hard1.wvr.c [2024-11-10 18:23:45,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af123609c/c8e16785649a4014b64dbcb0cc9279f6/FLAG120e11e42 [2024-11-10 18:23:46,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af123609c/c8e16785649a4014b64dbcb0cc9279f6 [2024-11-10 18:23:46,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:23:46,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:23:46,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:23:46,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:23:46,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:23:46,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3173615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46, skipping insertion in model container [2024-11-10 18:23:46,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:23:46,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:23:46,319 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:23:46,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:23:46,370 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:23:46,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46 WrapperNode [2024-11-10 18:23:46,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:23:46,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:23:46,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:23:46,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:23:46,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,404 INFO L138 Inliner]: procedures = 23, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-10 18:23:46,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:23:46,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:23:46,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:23:46,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:23:46,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,438 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 18:23:46,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,444 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:23:46,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:23:46,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:23:46,454 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:23:46,455 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (1/1) ... [2024-11-10 18:23:46,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:23:46,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:46,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:23:46,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:23:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:23:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:23:46,527 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:23:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 18:23:46,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 18:23:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 18:23:46,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 18:23:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-10 18:23:46,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-10 18:23:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:23:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 18:23:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 18:23:46,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:23:46,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:23:46,530 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:23:46,610 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:23:46,612 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:23:46,827 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:23:46,828 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:23:46,986 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:23:46,986 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:23:46,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:23:46 BoogieIcfgContainer [2024-11-10 18:23:46,987 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:23:46,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:23:46,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:23:46,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:23:46,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:23:46" (1/3) ... [2024-11-10 18:23:46,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761ccbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:23:46, skipping insertion in model container [2024-11-10 18:23:46,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:46" (2/3) ... [2024-11-10 18:23:46,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761ccbd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:23:46, skipping insertion in model container [2024-11-10 18:23:46,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:23:46" (3/3) ... [2024-11-10 18:23:46,995 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2024-11-10 18:23:47,012 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:23:47,012 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:23:47,013 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:23:47,079 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 18:23:47,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 58 transitions, 144 flow [2024-11-10 18:23:47,191 INFO L124 PetriNetUnfolderBase]: 8/54 cut-off events. [2024-11-10 18:23:47,191 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:23:47,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 54 events. 8/54 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-10 18:23:47,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 58 transitions, 144 flow [2024-11-10 18:23:47,202 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 53 transitions, 130 flow [2024-11-10 18:23:47,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:23:47,216 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;@2996ec2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:23:47,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 18:23:47,239 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:23:47,239 INFO L124 PetriNetUnfolderBase]: 8/50 cut-off events. [2024-11-10 18:23:47,239 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:23:47,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:47,240 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:47,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:23:47,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1515679088, now seen corresponding path program 1 times [2024-11-10 18:23:47,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:47,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453727700] [2024-11-10 18:23:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:47,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453727700] [2024-11-10 18:23:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453727700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:23:47,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895396017] [2024-11-10 18:23:47,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:47,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:23:47,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:47,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:23:47,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:23:47,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 58 [2024-11-10 18:23:47,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 130 flow. Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:47,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:47,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 58 [2024-11-10 18:23:47,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:47,934 INFO L124 PetriNetUnfolderBase]: 2477/3585 cut-off events. [2024-11-10 18:23:47,935 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-10 18:23:47,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7090 conditions, 3585 events. 2477/3585 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 19813 event pairs, 1794 based on Foata normal form. 684/3924 useless extension candidates. Maximal degree in co-relation 6364. Up to 3245 conditions per place. [2024-11-10 18:23:47,973 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 30 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2024-11-10 18:23:47,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 47 transitions, 178 flow [2024-11-10 18:23:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:23:47,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:23:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 79 transitions. [2024-11-10 18:23:47,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6810344827586207 [2024-11-10 18:23:47,986 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 130 flow. Second operand 2 states and 79 transitions. [2024-11-10 18:23:47,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 47 transitions, 178 flow [2024-11-10 18:23:47,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 162 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-10 18:23:47,998 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 102 flow [2024-11-10 18:23:48,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=102, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2024-11-10 18:23:48,006 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -9 predicate places. [2024-11-10 18:23:48,006 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 102 flow [2024-11-10 18:23:48,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:48,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:48,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:48,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:23:48,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:23:48,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1051296374, now seen corresponding path program 1 times [2024-11-10 18:23:48,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:48,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42410706] [2024-11-10 18:23:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:48,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:48,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42410706] [2024-11-10 18:23:48,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42410706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:48,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:48,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:23:48,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183508951] [2024-11-10 18:23:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:48,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:23:48,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:48,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:23:48,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:23:48,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 58 [2024-11-10 18:23:48,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:48,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:48,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 58 [2024-11-10 18:23:48,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:48,670 INFO L124 PetriNetUnfolderBase]: 3331/4879 cut-off events. [2024-11-10 18:23:48,671 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-10 18:23:48,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9373 conditions, 4879 events. 3331/4879 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 26577 event pairs, 587 based on Foata normal form. 1/4591 useless extension candidates. Maximal degree in co-relation 9370. Up to 3534 conditions per place. [2024-11-10 18:23:48,697 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 47 selfloop transitions, 5 changer transitions 1/70 dead transitions. [2024-11-10 18:23:48,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 70 transitions, 261 flow [2024-11-10 18:23:48,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:23:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:23:48,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-10 18:23:48,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2024-11-10 18:23:48,701 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 102 flow. Second operand 3 states and 120 transitions. [2024-11-10 18:23:48,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 70 transitions, 261 flow [2024-11-10 18:23:48,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 70 transitions, 261 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:23:48,705 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 135 flow [2024-11-10 18:23:48,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2024-11-10 18:23:48,706 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -6 predicate places. [2024-11-10 18:23:48,707 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 135 flow [2024-11-10 18:23:48,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:48,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:48,707 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:48,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:23:48,708 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:23:48,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash 128436016, now seen corresponding path program 1 times [2024-11-10 18:23:48,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:48,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747309580] [2024-11-10 18:23:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:48,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:49,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747309580] [2024-11-10 18:23:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747309580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:49,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:49,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000667022] [2024-11-10 18:23:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:49,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:49,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:49,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 18:23:49,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:49,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:49,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 18:23:49,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:50,632 INFO L124 PetriNetUnfolderBase]: 12147/17333 cut-off events. [2024-11-10 18:23:50,632 INFO L125 PetriNetUnfolderBase]: For 2996/2996 co-relation queries the response was YES. [2024-11-10 18:23:50,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38019 conditions, 17333 events. 12147/17333 cut-off events. For 2996/2996 co-relation queries the response was YES. Maximal size of possible extension queue 971. Compared 113682 event pairs, 2667 based on Foata normal form. 0/16390 useless extension candidates. Maximal degree in co-relation 38014. Up to 5614 conditions per place. [2024-11-10 18:23:50,740 INFO L140 encePairwiseOnDemand]: 49/58 looper letters, 127 selfloop transitions, 17 changer transitions 0/158 dead transitions. [2024-11-10 18:23:50,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 158 transitions, 731 flow [2024-11-10 18:23:50,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:23:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:23:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 241 transitions. [2024-11-10 18:23:50,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6925287356321839 [2024-11-10 18:23:50,742 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 135 flow. Second operand 6 states and 241 transitions. [2024-11-10 18:23:50,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 158 transitions, 731 flow [2024-11-10 18:23:50,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 158 transitions, 712 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:23:50,747 INFO L231 Difference]: Finished difference. Result has 61 places, 67 transitions, 276 flow [2024-11-10 18:23:50,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=61, PETRI_TRANSITIONS=67} [2024-11-10 18:23:50,748 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-11-10 18:23:50,748 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 67 transitions, 276 flow [2024-11-10 18:23:50,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:50,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:50,748 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:50,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:23:50,749 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:23:50,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:50,749 INFO L85 PathProgramCache]: Analyzing trace with hash -287600684, now seen corresponding path program 2 times [2024-11-10 18:23:50,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:50,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721804647] [2024-11-10 18:23:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:50,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:51,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:51,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721804647] [2024-11-10 18:23:51,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721804647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:51,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:51,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:23:51,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365033439] [2024-11-10 18:23:51,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:51,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:23:51,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:23:51,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:23:51,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-11-10 18:23:51,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 67 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:51,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:51,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-11-10 18:23:51,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:53,550 INFO L124 PetriNetUnfolderBase]: 19022/28815 cut-off events. [2024-11-10 18:23:53,550 INFO L125 PetriNetUnfolderBase]: For 26355/27291 co-relation queries the response was YES. [2024-11-10 18:23:53,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74857 conditions, 28815 events. 19022/28815 cut-off events. For 26355/27291 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 213088 event pairs, 1281 based on Foata normal form. 587/29015 useless extension candidates. Maximal degree in co-relation 74848. Up to 14199 conditions per place. [2024-11-10 18:23:53,767 INFO L140 encePairwiseOnDemand]: 49/58 looper letters, 148 selfloop transitions, 31 changer transitions 1/198 dead transitions. [2024-11-10 18:23:53,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 198 transitions, 1145 flow [2024-11-10 18:23:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:23:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:23:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 306 transitions. [2024-11-10 18:23:53,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594827586206896 [2024-11-10 18:23:53,770 INFO L175 Difference]: Start difference. First operand has 61 places, 67 transitions, 276 flow. Second operand 8 states and 306 transitions. [2024-11-10 18:23:53,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 198 transitions, 1145 flow [2024-11-10 18:23:53,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 198 transitions, 1145 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:23:53,852 INFO L231 Difference]: Finished difference. Result has 74 places, 89 transitions, 515 flow [2024-11-10 18:23:53,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=515, PETRI_PLACES=74, PETRI_TRANSITIONS=89} [2024-11-10 18:23:53,853 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2024-11-10 18:23:53,853 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 89 transitions, 515 flow [2024-11-10 18:23:53,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:53,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:53,854 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:53,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:23:53,854 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:23:53,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:53,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2014960760, now seen corresponding path program 3 times [2024-11-10 18:23:53,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:53,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092624838] [2024-11-10 18:23:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:53,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:54,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:54,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092624838] [2024-11-10 18:23:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092624838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:54,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:54,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903278274] [2024-11-10 18:23:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:54,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:54,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-11-10 18:23:54,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 89 transitions, 515 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:54,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:54,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-11-10 18:23:54,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:56,870 INFO L124 PetriNetUnfolderBase]: 22806/34200 cut-off events. [2024-11-10 18:23:56,870 INFO L125 PetriNetUnfolderBase]: For 52315/52939 co-relation queries the response was YES. [2024-11-10 18:23:56,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101350 conditions, 34200 events. 22806/34200 cut-off events. For 52315/52939 co-relation queries the response was YES. Maximal size of possible extension queue 1884. Compared 261509 event pairs, 4825 based on Foata normal form. 429/33685 useless extension candidates. Maximal degree in co-relation 101334. Up to 10710 conditions per place. [2024-11-10 18:23:57,164 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 153 selfloop transitions, 30 changer transitions 0/200 dead transitions. [2024-11-10 18:23:57,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 200 transitions, 1462 flow [2024-11-10 18:23:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:23:57,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:23:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 198 transitions. [2024-11-10 18:23:57,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6827586206896552 [2024-11-10 18:23:57,167 INFO L175 Difference]: Start difference. First operand has 74 places, 89 transitions, 515 flow. Second operand 5 states and 198 transitions. [2024-11-10 18:23:57,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 200 transitions, 1462 flow [2024-11-10 18:23:57,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 200 transitions, 1415 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 18:23:57,482 INFO L231 Difference]: Finished difference. Result has 80 places, 99 transitions, 692 flow [2024-11-10 18:23:57,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=692, PETRI_PLACES=80, PETRI_TRANSITIONS=99} [2024-11-10 18:23:57,483 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2024-11-10 18:23:57,483 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 99 transitions, 692 flow [2024-11-10 18:23:57,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:57,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:57,484 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:57,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:23:57,484 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:23:57,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:57,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1832903074, now seen corresponding path program 4 times [2024-11-10 18:23:57,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:57,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097204216] [2024-11-10 18:23:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:57,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:57,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:57,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097204216] [2024-11-10 18:23:57,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097204216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:57,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:57,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:57,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546827457] [2024-11-10 18:23:57,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:57,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:23:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:23:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:23:57,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 18:23:57,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 99 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:57,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:57,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 18:23:57,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:02,746 INFO L124 PetriNetUnfolderBase]: 40799/60989 cut-off events. [2024-11-10 18:24:02,746 INFO L125 PetriNetUnfolderBase]: For 134378/139558 co-relation queries the response was YES. [2024-11-10 18:24:02,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194681 conditions, 60989 events. 40799/60989 cut-off events. For 134378/139558 co-relation queries the response was YES. Maximal size of possible extension queue 3139. Compared 488429 event pairs, 6949 based on Foata normal form. 1783/61707 useless extension candidates. Maximal degree in co-relation 194661. Up to 33386 conditions per place. [2024-11-10 18:24:03,182 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 171 selfloop transitions, 49 changer transitions 0/236 dead transitions. [2024-11-10 18:24:03,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 236 transitions, 1944 flow [2024-11-10 18:24:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:24:03,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:24:03,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 269 transitions. [2024-11-10 18:24:03,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6625615763546798 [2024-11-10 18:24:03,184 INFO L175 Difference]: Start difference. First operand has 80 places, 99 transitions, 692 flow. Second operand 7 states and 269 transitions. [2024-11-10 18:24:03,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 236 transitions, 1944 flow [2024-11-10 18:24:03,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 236 transitions, 1888 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:24:03,558 INFO L231 Difference]: Finished difference. Result has 89 places, 132 transitions, 1166 flow [2024-11-10 18:24:03,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1166, PETRI_PLACES=89, PETRI_TRANSITIONS=132} [2024-11-10 18:24:03,559 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 31 predicate places. [2024-11-10 18:24:03,559 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 132 transitions, 1166 flow [2024-11-10 18:24:03,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:03,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:03,559 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:03,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:24:03,560 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:24:03,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:03,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1135807248, now seen corresponding path program 5 times [2024-11-10 18:24:03,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:03,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71481391] [2024-11-10 18:24:03,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:03,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:03,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:03,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71481391] [2024-11-10 18:24:03,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71481391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:24:03,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:24:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:24:03,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572718093] [2024-11-10 18:24:03,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:24:03,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:24:03,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:03,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:24:03,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:24:03,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-11-10 18:24:03,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 132 transitions, 1166 flow. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:03,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:03,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-11-10 18:24:03,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:11,687 INFO L124 PetriNetUnfolderBase]: 54927/84579 cut-off events. [2024-11-10 18:24:11,687 INFO L125 PetriNetUnfolderBase]: For 233977/243443 co-relation queries the response was YES. [2024-11-10 18:24:12,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274702 conditions, 84579 events. 54927/84579 cut-off events. For 233977/243443 co-relation queries the response was YES. Maximal size of possible extension queue 4651. Compared 740317 event pairs, 6639 based on Foata normal form. 3323/85580 useless extension candidates. Maximal degree in co-relation 274678. Up to 26656 conditions per place. [2024-11-10 18:24:12,509 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 238 selfloop transitions, 41 changer transitions 0/304 dead transitions. [2024-11-10 18:24:12,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 304 transitions, 3130 flow [2024-11-10 18:24:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:24:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:24:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 230 transitions. [2024-11-10 18:24:12,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6609195402298851 [2024-11-10 18:24:12,510 INFO L175 Difference]: Start difference. First operand has 89 places, 132 transitions, 1166 flow. Second operand 6 states and 230 transitions. [2024-11-10 18:24:12,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 304 transitions, 3130 flow [2024-11-10 18:24:14,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 304 transitions, 3037 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-10 18:24:14,228 INFO L231 Difference]: Finished difference. Result has 96 places, 155 transitions, 1493 flow [2024-11-10 18:24:14,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1493, PETRI_PLACES=96, PETRI_TRANSITIONS=155} [2024-11-10 18:24:14,229 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 38 predicate places. [2024-11-10 18:24:14,229 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 155 transitions, 1493 flow [2024-11-10 18:24:14,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:14,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:14,229 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:14,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:24:14,230 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:24:14,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash 957394762, now seen corresponding path program 6 times [2024-11-10 18:24:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:14,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089223589] [2024-11-10 18:24:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:14,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:14,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089223589] [2024-11-10 18:24:14,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089223589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:24:14,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:24:14,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:24:14,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719912228] [2024-11-10 18:24:14,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:24:14,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:24:14,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:14,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:24:14,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:24:14,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 18:24:14,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 155 transitions, 1493 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:14,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:14,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 18:24:14,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:25,352 INFO L124 PetriNetUnfolderBase]: 78557/119634 cut-off events. [2024-11-10 18:24:25,352 INFO L125 PetriNetUnfolderBase]: For 394178/397358 co-relation queries the response was YES. [2024-11-10 18:24:25,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415868 conditions, 119634 events. 78557/119634 cut-off events. For 394178/397358 co-relation queries the response was YES. Maximal size of possible extension queue 6229. Compared 1075496 event pairs, 23350 based on Foata normal form. 1697/118054 useless extension candidates. Maximal degree in co-relation 415840. Up to 36587 conditions per place. [2024-11-10 18:24:26,451 INFO L140 encePairwiseOnDemand]: 49/58 looper letters, 272 selfloop transitions, 57 changer transitions 0/345 dead transitions. [2024-11-10 18:24:26,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 345 transitions, 3848 flow [2024-11-10 18:24:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:24:26,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:24:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 201 transitions. [2024-11-10 18:24:26,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931034482758621 [2024-11-10 18:24:26,453 INFO L175 Difference]: Start difference. First operand has 96 places, 155 transitions, 1493 flow. Second operand 5 states and 201 transitions. [2024-11-10 18:24:26,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 345 transitions, 3848 flow [2024-11-10 18:24:28,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 345 transitions, 3750 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 18:24:28,313 INFO L231 Difference]: Finished difference. Result has 103 places, 172 transitions, 1924 flow [2024-11-10 18:24:28,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1924, PETRI_PLACES=103, PETRI_TRANSITIONS=172} [2024-11-10 18:24:28,315 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 45 predicate places. [2024-11-10 18:24:28,315 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 172 transitions, 1924 flow [2024-11-10 18:24:28,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:28,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:28,315 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:28,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:24:28,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:24:28,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:28,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1859998790, now seen corresponding path program 7 times [2024-11-10 18:24:28,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:28,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794125663] [2024-11-10 18:24:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:28,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:28,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794125663] [2024-11-10 18:24:28,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794125663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:24:28,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:24:28,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:24:28,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964713573] [2024-11-10 18:24:28,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:24:28,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:24:28,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:28,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:24:28,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:24:28,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-11-10 18:24:28,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 172 transitions, 1924 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:28,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:28,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-11-10 18:24:28,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand