./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy11.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-easy11.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 dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:23:32,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:23:32,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:23:32,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:23:32,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:23:32,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:23:32,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:23:32,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:23:32,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:23:32,722 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:23:32,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:23:32,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:23:32,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:23:32,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:23:32,725 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:23:32,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:23:32,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:23:32,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:23:32,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:23:32,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:23:32,728 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:23:32,732 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:23:32,732 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:23:32,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:23:32,732 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:23:32,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:23:32,733 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:23:32,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:23:32,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:23:32,733 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:23:32,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:23:32,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:23:32,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:23:32,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:23:32,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:23:32,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:23:32,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:23:32,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:23:32,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:23:32,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:23:32,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:23:32,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:23:32,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 [2024-11-10 18:23:32,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:23:33,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:23:33,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:23:33,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:23:33,029 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:23:33,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-11-10 18:23:34,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:23:34,685 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:23:34,685 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-11-10 18:23:34,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f783979/6584810b70ec444381f0bf968e7d5c25/FLAG9da827c0d [2024-11-10 18:23:34,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f783979/6584810b70ec444381f0bf968e7d5c25 [2024-11-10 18:23:34,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:23:34,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:23:34,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:23:34,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:23:34,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:23:34,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:23:34" (1/1) ... [2024-11-10 18:23:34,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9a89d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:34, skipping insertion in model container [2024-11-10 18:23:34,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:23:34" (1/1) ... [2024-11-10 18:23:34,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:23:34,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:23:34,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:23:34,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:23:35,009 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:23:35,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35 WrapperNode [2024-11-10 18:23:35,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:23:35,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:23:35,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:23:35,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:23:35,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,036 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2024-11-10 18:23:35,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:23:35,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:23:35,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:23:35,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:23:35,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,061 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 18:23:35,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,066 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:23:35,071 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:23:35,071 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:23:35,071 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:23:35,072 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (1/1) ... [2024-11-10 18:23:35,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:23:35,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:35,111 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 18:23:35,113 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 18:23:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:23:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:23:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:23:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 18:23:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 18:23:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:23:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:23:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:23:35,162 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 18:23:35,245 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:23:35,247 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:23:35,407 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:23:35,407 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:23:35,557 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:23:35,557 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:23:35,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:23:35 BoogieIcfgContainer [2024-11-10 18:23:35,558 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:23:35,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:23:35,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:23:35,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:23:35,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:23:34" (1/3) ... [2024-11-10 18:23:35,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35227e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:23:35, skipping insertion in model container [2024-11-10 18:23:35,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:23:35" (2/3) ... [2024-11-10 18:23:35,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35227e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:23:35, skipping insertion in model container [2024-11-10 18:23:35,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:23:35" (3/3) ... [2024-11-10 18:23:35,567 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2024-11-10 18:23:35,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:23:35,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:23:35,588 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:23:35,640 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 18:23:35,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 70 flow [2024-11-10 18:23:35,713 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-10 18:23:35,714 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 18:23:35,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 4/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2024-11-10 18:23:35,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 28 transitions, 70 flow [2024-11-10 18:23:35,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 25 transitions, 62 flow [2024-11-10 18:23:35,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:23:35,748 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;@5f5cec5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:23:35,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 18:23:35,767 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:23:35,768 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-11-10 18:23:35,768 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 18:23:35,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:35,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:35,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:35,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash -557966829, now seen corresponding path program 1 times [2024-11-10 18:23:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869487393] [2024-11-10 18:23:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:35,968 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 18:23:35,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869487393] [2024-11-10 18:23:35,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869487393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:35,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:35,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:23:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655554314] [2024-11-10 18:23:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:35,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:23:35,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:36,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:23:36,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:23:36,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-11-10 18:23:36,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 62 flow. Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 18:23:36,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:36,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-11-10 18:23:36,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:36,084 INFO L124 PetriNetUnfolderBase]: 61/125 cut-off events. [2024-11-10 18:23:36,085 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-10 18:23:36,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 125 events. 61/125 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 349 event pairs, 42 based on Foata normal form. 20/139 useless extension candidates. Maximal degree in co-relation 216. Up to 109 conditions per place. [2024-11-10 18:23:36,088 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 16 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2024-11-10 18:23:36,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 86 flow [2024-11-10 18:23:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:23:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:23:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2024-11-10 18:23:36,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-10 18:23:36,104 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 62 flow. Second operand 2 states and 35 transitions. [2024-11-10 18:23:36,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 86 flow [2024-11-10 18:23:36,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 78 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 18:23:36,109 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 46 flow [2024-11-10 18:23:36,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2024-11-10 18:23:36,114 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -5 predicate places. [2024-11-10 18:23:36,115 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 46 flow [2024-11-10 18:23:36,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 18:23:36,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:36,115 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:36,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:23:36,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:36,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash -537029280, now seen corresponding path program 1 times [2024-11-10 18:23:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396100365] [2024-11-10 18:23:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:36,577 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 18:23:36,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396100365] [2024-11-10 18:23:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396100365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:36,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892816315] [2024-11-10 18:23:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:36,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:36,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:36,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:36,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 46 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:36,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:36,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:36,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:36,930 INFO L124 PetriNetUnfolderBase]: 111/216 cut-off events. [2024-11-10 18:23:36,931 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 18:23:36,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 216 events. 111/216 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 694 event pairs, 2 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 422. Up to 57 conditions per place. [2024-11-10 18:23:36,934 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 40 selfloop transitions, 10 changer transitions 10/63 dead transitions. [2024-11-10 18:23:36,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 63 transitions, 258 flow [2024-11-10 18:23:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2024-11-10 18:23:36,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2024-11-10 18:23:36,939 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 46 flow. Second operand 9 states and 115 transitions. [2024-11-10 18:23:36,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 63 transitions, 258 flow [2024-11-10 18:23:36,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 63 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:23:36,944 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 111 flow [2024-11-10 18:23:36,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=111, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-10 18:23:36,947 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 9 predicate places. [2024-11-10 18:23:36,948 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 111 flow [2024-11-10 18:23:36,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:36,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:36,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:36,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:23:36,948 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:36,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:36,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1135127948, now seen corresponding path program 2 times [2024-11-10 18:23:36,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:36,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181986806] [2024-11-10 18:23:36,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:36,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:37,233 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 18:23:37,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:37,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181986806] [2024-11-10 18:23:37,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181986806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:37,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:37,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776701349] [2024-11-10 18:23:37,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:37,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:37,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:37,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 111 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:37,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:37,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:37,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:37,540 INFO L124 PetriNetUnfolderBase]: 114/221 cut-off events. [2024-11-10 18:23:37,541 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-10 18:23:37,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 221 events. 114/221 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 716 event pairs, 15 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 592. Up to 115 conditions per place. [2024-11-10 18:23:37,546 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 34 selfloop transitions, 14 changer transitions 10/61 dead transitions. [2024-11-10 18:23:37,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 61 transitions, 340 flow [2024-11-10 18:23:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 110 transitions. [2024-11-10 18:23:37,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-11-10 18:23:37,550 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 111 flow. Second operand 9 states and 110 transitions. [2024-11-10 18:23:37,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 61 transitions, 340 flow [2024-11-10 18:23:37,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 61 transitions, 330 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 18:23:37,553 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 196 flow [2024-11-10 18:23:37,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=196, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2024-11-10 18:23:37,554 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 18 predicate places. [2024-11-10 18:23:37,554 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 196 flow [2024-11-10 18:23:37,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:37,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:37,555 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:37,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:23:37,556 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:37,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:37,556 INFO L85 PathProgramCache]: Analyzing trace with hash 143676786, now seen corresponding path program 3 times [2024-11-10 18:23:37,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:37,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146434106] [2024-11-10 18:23:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:37,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:37,765 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 18:23:37,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:37,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146434106] [2024-11-10 18:23:37,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146434106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:37,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164211141] [2024-11-10 18:23:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:37,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:37,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:37,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:37,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 196 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:37,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:37,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:37,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:38,035 INFO L124 PetriNetUnfolderBase]: 120/234 cut-off events. [2024-11-10 18:23:38,035 INFO L125 PetriNetUnfolderBase]: For 303/307 co-relation queries the response was YES. [2024-11-10 18:23:38,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 234 events. 120/234 cut-off events. For 303/307 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 793 event pairs, 10 based on Foata normal form. 1/235 useless extension candidates. Maximal degree in co-relation 723. Up to 119 conditions per place. [2024-11-10 18:23:38,039 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 39 selfloop transitions, 18 changer transitions 10/70 dead transitions. [2024-11-10 18:23:38,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 70 transitions, 463 flow [2024-11-10 18:23:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 114 transitions. [2024-11-10 18:23:38,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-11-10 18:23:38,041 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 196 flow. Second operand 9 states and 114 transitions. [2024-11-10 18:23:38,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 70 transitions, 463 flow [2024-11-10 18:23:38,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 70 transitions, 430 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-10 18:23:38,045 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 264 flow [2024-11-10 18:23:38,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2024-11-10 18:23:38,046 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 24 predicate places. [2024-11-10 18:23:38,046 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 264 flow [2024-11-10 18:23:38,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:38,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:38,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:38,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:23:38,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:38,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:38,049 INFO L85 PathProgramCache]: Analyzing trace with hash -112564562, now seen corresponding path program 4 times [2024-11-10 18:23:38,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:38,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985593447] [2024-11-10 18:23:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:38,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:38,200 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 18:23:38,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:38,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985593447] [2024-11-10 18:23:38,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985593447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:38,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:38,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104976131] [2024-11-10 18:23:38,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:38,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:38,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:38,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:38,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:38,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 264 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:38,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:38,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:38,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:38,477 INFO L124 PetriNetUnfolderBase]: 140/262 cut-off events. [2024-11-10 18:23:38,477 INFO L125 PetriNetUnfolderBase]: For 589/593 co-relation queries the response was YES. [2024-11-10 18:23:38,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 262 events. 140/262 cut-off events. For 589/593 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 889 event pairs, 20 based on Foata normal form. 1/261 useless extension candidates. Maximal degree in co-relation 912. Up to 129 conditions per place. [2024-11-10 18:23:38,484 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 36 selfloop transitions, 26 changer transitions 9/74 dead transitions. [2024-11-10 18:23:38,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 74 transitions, 578 flow [2024-11-10 18:23:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2024-11-10 18:23:38,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-10 18:23:38,486 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 264 flow. Second operand 9 states and 112 transitions. [2024-11-10 18:23:38,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 74 transitions, 578 flow [2024-11-10 18:23:38,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 520 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:38,494 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 402 flow [2024-11-10 18:23:38,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=402, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-10 18:23:38,495 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 29 predicate places. [2024-11-10 18:23:38,497 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 402 flow [2024-11-10 18:23:38,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:38,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:38,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:38,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:23:38,498 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:38,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash -438388302, now seen corresponding path program 5 times [2024-11-10 18:23:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216395585] [2024-11-10 18:23:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:38,657 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 18:23:38,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216395585] [2024-11-10 18:23:38,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216395585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:38,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:38,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863938915] [2024-11-10 18:23:38,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:38,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:38,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:38,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:38,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 402 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:38,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:38,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:38,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:38,903 INFO L124 PetriNetUnfolderBase]: 149/279 cut-off events. [2024-11-10 18:23:38,903 INFO L125 PetriNetUnfolderBase]: For 848/858 co-relation queries the response was YES. [2024-11-10 18:23:38,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 279 events. 149/279 cut-off events. For 848/858 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 995 event pairs, 11 based on Foata normal form. 5/282 useless extension candidates. Maximal degree in co-relation 1057. Up to 132 conditions per place. [2024-11-10 18:23:38,908 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 48 selfloop transitions, 25 changer transitions 10/86 dead transitions. [2024-11-10 18:23:38,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 86 transitions, 724 flow [2024-11-10 18:23:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:38,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 117 transitions. [2024-11-10 18:23:38,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-11-10 18:23:38,910 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 402 flow. Second operand 9 states and 117 transitions. [2024-11-10 18:23:38,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 86 transitions, 724 flow [2024-11-10 18:23:38,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 679 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-10 18:23:38,921 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 434 flow [2024-11-10 18:23:38,922 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2024-11-10 18:23:38,923 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 34 predicate places. [2024-11-10 18:23:38,924 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 434 flow [2024-11-10 18:23:38,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:38,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:38,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:38,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:23:38,925 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:38,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:38,925 INFO L85 PathProgramCache]: Analyzing trace with hash -375335810, now seen corresponding path program 6 times [2024-11-10 18:23:38,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:38,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999544787] [2024-11-10 18:23:38,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:38,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:39,051 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 18:23:39,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:39,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999544787] [2024-11-10 18:23:39,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999544787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:39,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:39,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:39,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617763321] [2024-11-10 18:23:39,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:39,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:39,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:39,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:39,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 434 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:39,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:39,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:39,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:39,283 INFO L124 PetriNetUnfolderBase]: 167/310 cut-off events. [2024-11-10 18:23:39,283 INFO L125 PetriNetUnfolderBase]: For 1186/1200 co-relation queries the response was YES. [2024-11-10 18:23:39,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1295 conditions, 310 events. 167/310 cut-off events. For 1186/1200 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1130 event pairs, 12 based on Foata normal form. 9/319 useless extension candidates. Maximal degree in co-relation 1276. Up to 149 conditions per place. [2024-11-10 18:23:39,287 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 43 selfloop transitions, 33 changer transitions 10/89 dead transitions. [2024-11-10 18:23:39,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 89 transitions, 831 flow [2024-11-10 18:23:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:39,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 114 transitions. [2024-11-10 18:23:39,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-11-10 18:23:39,288 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 434 flow. Second operand 9 states and 114 transitions. [2024-11-10 18:23:39,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 89 transitions, 831 flow [2024-11-10 18:23:39,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 89 transitions, 755 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:39,294 INFO L231 Difference]: Finished difference. Result has 66 places, 65 transitions, 600 flow [2024-11-10 18:23:39,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=600, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2024-11-10 18:23:39,295 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 38 predicate places. [2024-11-10 18:23:39,295 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 600 flow [2024-11-10 18:23:39,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:39,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:39,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:39,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:23:39,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:39,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1518839964, now seen corresponding path program 7 times [2024-11-10 18:23:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058034701] [2024-11-10 18:23:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:39,430 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 18:23:39,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:39,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058034701] [2024-11-10 18:23:39,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058034701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:39,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:39,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:39,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520939477] [2024-11-10 18:23:39,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:39,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:39,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:39,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:39,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:39,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:39,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 600 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:39,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:39,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:39,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:39,674 INFO L124 PetriNetUnfolderBase]: 164/306 cut-off events. [2024-11-10 18:23:39,674 INFO L125 PetriNetUnfolderBase]: For 1469/1483 co-relation queries the response was YES. [2024-11-10 18:23:39,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 306 events. 164/306 cut-off events. For 1469/1483 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1155 event pairs, 11 based on Foata normal form. 9/315 useless extension candidates. Maximal degree in co-relation 1352. Up to 147 conditions per place. [2024-11-10 18:23:39,677 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 51 selfloop transitions, 29 changer transitions 11/94 dead transitions. [2024-11-10 18:23:39,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 94 transitions, 949 flow [2024-11-10 18:23:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2024-11-10 18:23:39,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-10 18:23:39,679 INFO L175 Difference]: Start difference. First operand has 66 places, 65 transitions, 600 flow. Second operand 9 states and 112 transitions. [2024-11-10 18:23:39,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 94 transitions, 949 flow [2024-11-10 18:23:39,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 873 flow, removed 25 selfloop flow, removed 4 redundant places. [2024-11-10 18:23:39,685 INFO L231 Difference]: Finished difference. Result has 70 places, 63 transitions, 583 flow [2024-11-10 18:23:39,685 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=583, PETRI_PLACES=70, PETRI_TRANSITIONS=63} [2024-11-10 18:23:39,686 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 42 predicate places. [2024-11-10 18:23:39,686 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 583 flow [2024-11-10 18:23:39,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:39,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:39,687 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:39,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:23:39,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:39,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash -193116750, now seen corresponding path program 8 times [2024-11-10 18:23:39,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:39,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189870443] [2024-11-10 18:23:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:39,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:39,791 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 18:23:39,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:39,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189870443] [2024-11-10 18:23:39,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189870443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:39,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:39,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221800978] [2024-11-10 18:23:39,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:39,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:39,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:39,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:39,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:39,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:39,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 583 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:39,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:39,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:39,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:40,029 INFO L124 PetriNetUnfolderBase]: 162/303 cut-off events. [2024-11-10 18:23:40,029 INFO L125 PetriNetUnfolderBase]: For 1376/1390 co-relation queries the response was YES. [2024-11-10 18:23:40,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 303 events. 162/303 cut-off events. For 1376/1390 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1118 event pairs, 15 based on Foata normal form. 9/312 useless extension candidates. Maximal degree in co-relation 1300. Up to 145 conditions per place. [2024-11-10 18:23:40,034 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 43 selfloop transitions, 32 changer transitions 10/88 dead transitions. [2024-11-10 18:23:40,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 88 transitions, 874 flow [2024-11-10 18:23:40,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:40,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2024-11-10 18:23:40,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2024-11-10 18:23:40,035 INFO L175 Difference]: Start difference. First operand has 70 places, 63 transitions, 583 flow. Second operand 9 states and 115 transitions. [2024-11-10 18:23:40,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 88 transitions, 874 flow [2024-11-10 18:23:40,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 88 transitions, 810 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:40,042 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 630 flow [2024-11-10 18:23:40,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=630, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2024-11-10 18:23:40,044 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 43 predicate places. [2024-11-10 18:23:40,044 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 630 flow [2024-11-10 18:23:40,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:40,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:40,044 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:40,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:23:40,045 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:40,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:40,045 INFO L85 PathProgramCache]: Analyzing trace with hash 633041684, now seen corresponding path program 9 times [2024-11-10 18:23:40,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:40,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799806284] [2024-11-10 18:23:40,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:40,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:40,162 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 18:23:40,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:40,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799806284] [2024-11-10 18:23:40,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799806284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:40,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:40,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:40,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064698812] [2024-11-10 18:23:40,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:40,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:40,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:40,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:40,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:40,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:40,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 630 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:40,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:40,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:40,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:40,421 INFO L124 PetriNetUnfolderBase]: 159/299 cut-off events. [2024-11-10 18:23:40,421 INFO L125 PetriNetUnfolderBase]: For 1419/1433 co-relation queries the response was YES. [2024-11-10 18:23:40,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 299 events. 159/299 cut-off events. For 1419/1433 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1099 event pairs, 16 based on Foata normal form. 9/308 useless extension candidates. Maximal degree in co-relation 1317. Up to 143 conditions per place. [2024-11-10 18:23:40,425 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 42 selfloop transitions, 30 changer transitions 11/86 dead transitions. [2024-11-10 18:23:40,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 86 transitions, 880 flow [2024-11-10 18:23:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:40,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2024-11-10 18:23:40,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2024-11-10 18:23:40,427 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 630 flow. Second operand 9 states and 113 transitions. [2024-11-10 18:23:40,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 86 transitions, 880 flow [2024-11-10 18:23:40,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 86 transitions, 818 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-10 18:23:40,435 INFO L231 Difference]: Finished difference. Result has 74 places, 63 transitions, 607 flow [2024-11-10 18:23:40,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=607, PETRI_PLACES=74, PETRI_TRANSITIONS=63} [2024-11-10 18:23:40,436 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 46 predicate places. [2024-11-10 18:23:40,436 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 63 transitions, 607 flow [2024-11-10 18:23:40,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:40,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:40,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:40,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 18:23:40,437 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:40,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:40,438 INFO L85 PathProgramCache]: Analyzing trace with hash -97753640, now seen corresponding path program 10 times [2024-11-10 18:23:40,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:40,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237537788] [2024-11-10 18:23:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:40,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:40,581 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 18:23:40,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:40,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237537788] [2024-11-10 18:23:40,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237537788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:40,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:40,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:40,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341446507] [2024-11-10 18:23:40,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:40,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:40,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:40,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:40,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:40,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:40,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 607 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:40,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:40,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:40,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:40,852 INFO L124 PetriNetUnfolderBase]: 167/311 cut-off events. [2024-11-10 18:23:40,852 INFO L125 PetriNetUnfolderBase]: For 1473/1487 co-relation queries the response was YES. [2024-11-10 18:23:40,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 311 events. 167/311 cut-off events. For 1473/1487 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1160 event pairs, 12 based on Foata normal form. 9/320 useless extension candidates. Maximal degree in co-relation 1343. Up to 146 conditions per place. [2024-11-10 18:23:40,856 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 45 selfloop transitions, 31 changer transitions 10/89 dead transitions. [2024-11-10 18:23:40,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 888 flow [2024-11-10 18:23:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2024-11-10 18:23:40,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2024-11-10 18:23:40,858 INFO L175 Difference]: Start difference. First operand has 74 places, 63 transitions, 607 flow. Second operand 9 states and 116 transitions. [2024-11-10 18:23:40,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 888 flow [2024-11-10 18:23:40,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 89 transitions, 824 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:40,866 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 625 flow [2024-11-10 18:23:40,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=625, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2024-11-10 18:23:40,867 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 46 predicate places. [2024-11-10 18:23:40,867 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 625 flow [2024-11-10 18:23:40,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:40,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:40,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:40,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 18:23:40,868 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:40,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:40,869 INFO L85 PathProgramCache]: Analyzing trace with hash 450822624, now seen corresponding path program 11 times [2024-11-10 18:23:40,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:40,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131521103] [2024-11-10 18:23:40,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:41,000 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 18:23:41,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:41,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131521103] [2024-11-10 18:23:41,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131521103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:41,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:41,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:41,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393203921] [2024-11-10 18:23:41,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:41,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:41,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:41,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:41,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:41,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:41,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 625 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:41,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:41,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:41,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:41,239 INFO L124 PetriNetUnfolderBase]: 161/304 cut-off events. [2024-11-10 18:23:41,239 INFO L125 PetriNetUnfolderBase]: For 1546/1560 co-relation queries the response was YES. [2024-11-10 18:23:41,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 304 events. 161/304 cut-off events. For 1546/1560 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1134 event pairs, 14 based on Foata normal form. 9/313 useless extension candidates. Maximal degree in co-relation 1345. Up to 151 conditions per place. [2024-11-10 18:23:41,244 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 43 selfloop transitions, 28 changer transitions 11/85 dead transitions. [2024-11-10 18:23:41,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 85 transitions, 877 flow [2024-11-10 18:23:41,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 111 transitions. [2024-11-10 18:23:41,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-11-10 18:23:41,246 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 625 flow. Second operand 9 states and 111 transitions. [2024-11-10 18:23:41,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 85 transitions, 877 flow [2024-11-10 18:23:41,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 85 transitions, 805 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:41,253 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 587 flow [2024-11-10 18:23:41,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=587, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2024-11-10 18:23:41,255 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 47 predicate places. [2024-11-10 18:23:41,256 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 587 flow [2024-11-10 18:23:41,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:41,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:41,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:41,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 18:23:41,257 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:41,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash -933176184, now seen corresponding path program 12 times [2024-11-10 18:23:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:41,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114430808] [2024-11-10 18:23:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:41,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:41,384 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 18:23:41,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:41,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114430808] [2024-11-10 18:23:41,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114430808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:41,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:41,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845601072] [2024-11-10 18:23:41,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:41,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:41,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:41,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:41,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 587 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:41,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:41,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:41,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:41,619 INFO L124 PetriNetUnfolderBase]: 166/311 cut-off events. [2024-11-10 18:23:41,620 INFO L125 PetriNetUnfolderBase]: For 1528/1542 co-relation queries the response was YES. [2024-11-10 18:23:41,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 311 events. 166/311 cut-off events. For 1528/1542 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1164 event pairs, 13 based on Foata normal form. 9/320 useless extension candidates. Maximal degree in co-relation 1337. Up to 153 conditions per place. [2024-11-10 18:23:41,623 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 45 selfloop transitions, 29 changer transitions 9/86 dead transitions. [2024-11-10 18:23:41,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 86 transitions, 861 flow [2024-11-10 18:23:41,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:41,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2024-11-10 18:23:41,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-10 18:23:41,625 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 587 flow. Second operand 9 states and 112 transitions. [2024-11-10 18:23:41,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 86 transitions, 861 flow [2024-11-10 18:23:41,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 86 transitions, 799 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:41,631 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 607 flow [2024-11-10 18:23:41,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=607, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-11-10 18:23:41,632 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 47 predicate places. [2024-11-10 18:23:41,632 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 607 flow [2024-11-10 18:23:41,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:41,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:41,633 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:41,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 18:23:41,633 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:41,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:41,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1266928844, now seen corresponding path program 13 times [2024-11-10 18:23:41,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:41,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175271035] [2024-11-10 18:23:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:41,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:41,735 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 18:23:41,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:41,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175271035] [2024-11-10 18:23:41,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175271035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:41,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:41,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:41,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238184241] [2024-11-10 18:23:41,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:41,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:41,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:41,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:41,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:41,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:41,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 607 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:41,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:41,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:41,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:41,943 INFO L124 PetriNetUnfolderBase]: 163/306 cut-off events. [2024-11-10 18:23:41,943 INFO L125 PetriNetUnfolderBase]: For 1693/1707 co-relation queries the response was YES. [2024-11-10 18:23:41,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 306 events. 163/306 cut-off events. For 1693/1707 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1122 event pairs, 19 based on Foata normal form. 9/313 useless extension candidates. Maximal degree in co-relation 1342. Up to 157 conditions per place. [2024-11-10 18:23:41,947 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 43 selfloop transitions, 30 changer transitions 10/86 dead transitions. [2024-11-10 18:23:41,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 86 transitions, 896 flow [2024-11-10 18:23:41,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:41,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2024-11-10 18:23:41,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-10 18:23:41,949 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 607 flow. Second operand 9 states and 112 transitions. [2024-11-10 18:23:41,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 86 transitions, 896 flow [2024-11-10 18:23:41,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 86 transitions, 826 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:41,955 INFO L231 Difference]: Finished difference. Result has 78 places, 65 transitions, 643 flow [2024-11-10 18:23:41,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=643, PETRI_PLACES=78, PETRI_TRANSITIONS=65} [2024-11-10 18:23:41,956 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 50 predicate places. [2024-11-10 18:23:41,956 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 65 transitions, 643 flow [2024-11-10 18:23:41,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:41,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:41,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:41,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 18:23:41,957 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:41,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:41,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1860425136, now seen corresponding path program 14 times [2024-11-10 18:23:41,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:41,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533521933] [2024-11-10 18:23:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:41,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:42,063 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 18:23:42,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:42,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533521933] [2024-11-10 18:23:42,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533521933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:42,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873918389] [2024-11-10 18:23:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:42,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:42,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:42,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 65 transitions, 643 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:42,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:42,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:42,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:42,274 INFO L124 PetriNetUnfolderBase]: 161/305 cut-off events. [2024-11-10 18:23:42,275 INFO L125 PetriNetUnfolderBase]: For 1735/1749 co-relation queries the response was YES. [2024-11-10 18:23:42,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 305 events. 161/305 cut-off events. For 1735/1749 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1140 event pairs, 21 based on Foata normal form. 9/312 useless extension candidates. Maximal degree in co-relation 1351. Up to 155 conditions per place. [2024-11-10 18:23:42,279 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 43 selfloop transitions, 27 changer transitions 12/85 dead transitions. [2024-11-10 18:23:42,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 903 flow [2024-11-10 18:23:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 111 transitions. [2024-11-10 18:23:42,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-11-10 18:23:42,281 INFO L175 Difference]: Start difference. First operand has 78 places, 65 transitions, 643 flow. Second operand 9 states and 111 transitions. [2024-11-10 18:23:42,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 903 flow [2024-11-10 18:23:42,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 854 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 18:23:42,288 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 627 flow [2024-11-10 18:23:42,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=627, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-11-10 18:23:42,289 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 53 predicate places. [2024-11-10 18:23:42,289 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 627 flow [2024-11-10 18:23:42,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:42,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:42,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:42,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 18:23:42,290 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:42,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1876701786, now seen corresponding path program 15 times [2024-11-10 18:23:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:42,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904812900] [2024-11-10 18:23:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:42,408 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 18:23:42,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904812900] [2024-11-10 18:23:42,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904812900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:42,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:42,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:42,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636559921] [2024-11-10 18:23:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:42,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:42,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:42,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:42,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:42,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 627 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:42,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:42,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:42,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:42,656 INFO L124 PetriNetUnfolderBase]: 169/322 cut-off events. [2024-11-10 18:23:42,657 INFO L125 PetriNetUnfolderBase]: For 1833/1847 co-relation queries the response was YES. [2024-11-10 18:23:42,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422 conditions, 322 events. 169/322 cut-off events. For 1833/1847 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1232 event pairs, 21 based on Foata normal form. 9/329 useless extension candidates. Maximal degree in co-relation 1394. Up to 159 conditions per place. [2024-11-10 18:23:42,662 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 45 selfloop transitions, 29 changer transitions 9/86 dead transitions. [2024-11-10 18:23:42,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 86 transitions, 911 flow [2024-11-10 18:23:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:42,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:42,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2024-11-10 18:23:42,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-10 18:23:42,664 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 627 flow. Second operand 9 states and 112 transitions. [2024-11-10 18:23:42,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 86 transitions, 911 flow [2024-11-10 18:23:42,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 86 transitions, 853 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:42,672 INFO L231 Difference]: Finished difference. Result has 81 places, 65 transitions, 659 flow [2024-11-10 18:23:42,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=659, PETRI_PLACES=81, PETRI_TRANSITIONS=65} [2024-11-10 18:23:42,673 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 53 predicate places. [2024-11-10 18:23:42,673 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 65 transitions, 659 flow [2024-11-10 18:23:42,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:42,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:42,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:42,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 18:23:42,675 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:42,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:42,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1861963056, now seen corresponding path program 16 times [2024-11-10 18:23:42,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:42,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568177960] [2024-11-10 18:23:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:42,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:42,788 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 18:23:42,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:42,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568177960] [2024-11-10 18:23:42,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568177960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:42,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:42,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:42,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632638161] [2024-11-10 18:23:42,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:42,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:42,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:42,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:42,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:42,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 65 transitions, 659 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:42,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:42,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:42,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:42,996 INFO L124 PetriNetUnfolderBase]: 161/310 cut-off events. [2024-11-10 18:23:42,996 INFO L125 PetriNetUnfolderBase]: For 1944/1958 co-relation queries the response was YES. [2024-11-10 18:23:42,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422 conditions, 310 events. 161/310 cut-off events. For 1944/1958 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1165 event pairs, 24 based on Foata normal form. 9/317 useless extension candidates. Maximal degree in co-relation 1393. Up to 161 conditions per place. [2024-11-10 18:23:43,000 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 43 selfloop transitions, 26 changer transitions 11/83 dead transitions. [2024-11-10 18:23:43,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 83 transitions, 911 flow [2024-11-10 18:23:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:43,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 110 transitions. [2024-11-10 18:23:43,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-11-10 18:23:43,001 INFO L175 Difference]: Start difference. First operand has 81 places, 65 transitions, 659 flow. Second operand 9 states and 110 transitions. [2024-11-10 18:23:43,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 83 transitions, 911 flow [2024-11-10 18:23:43,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 83 transitions, 839 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:43,010 INFO L231 Difference]: Finished difference. Result has 81 places, 62 transitions, 610 flow [2024-11-10 18:23:43,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=610, PETRI_PLACES=81, PETRI_TRANSITIONS=62} [2024-11-10 18:23:43,011 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 53 predicate places. [2024-11-10 18:23:43,011 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 62 transitions, 610 flow [2024-11-10 18:23:43,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:43,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:43,011 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:43,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 18:23:43,012 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:43,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:43,013 INFO L85 PathProgramCache]: Analyzing trace with hash 989186772, now seen corresponding path program 17 times [2024-11-10 18:23:43,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:43,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609198204] [2024-11-10 18:23:43,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:43,128 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 18:23:43,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:43,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609198204] [2024-11-10 18:23:43,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609198204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:43,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:43,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:43,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905087361] [2024-11-10 18:23:43,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:43,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:43,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:43,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:43,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:43,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 62 transitions, 610 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:43,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:43,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:43,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:43,370 INFO L124 PetriNetUnfolderBase]: 169/322 cut-off events. [2024-11-10 18:23:43,370 INFO L125 PetriNetUnfolderBase]: For 1957/1971 co-relation queries the response was YES. [2024-11-10 18:23:43,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 322 events. 169/322 cut-off events. For 1957/1971 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1231 event pairs, 20 based on Foata normal form. 9/329 useless extension candidates. Maximal degree in co-relation 1396. Up to 164 conditions per place. [2024-11-10 18:23:43,374 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 46 selfloop transitions, 27 changer transitions 10/86 dead transitions. [2024-11-10 18:23:43,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 86 transitions, 901 flow [2024-11-10 18:23:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:43,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2024-11-10 18:23:43,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2024-11-10 18:23:43,376 INFO L175 Difference]: Start difference. First operand has 81 places, 62 transitions, 610 flow. Second operand 9 states and 113 transitions. [2024-11-10 18:23:43,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 86 transitions, 901 flow [2024-11-10 18:23:43,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 86 transitions, 845 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:43,383 INFO L231 Difference]: Finished difference. Result has 82 places, 63 transitions, 630 flow [2024-11-10 18:23:43,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=630, PETRI_PLACES=82, PETRI_TRANSITIONS=63} [2024-11-10 18:23:43,384 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 54 predicate places. [2024-11-10 18:23:43,384 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 63 transitions, 630 flow [2024-11-10 18:23:43,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:43,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:43,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:43,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 18:23:43,385 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:43,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1634206132, now seen corresponding path program 18 times [2024-11-10 18:23:43,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:43,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171739402] [2024-11-10 18:23:43,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:43,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:43,488 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 18:23:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:43,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171739402] [2024-11-10 18:23:43,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171739402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:43,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:43,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:43,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759924975] [2024-11-10 18:23:43,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:43,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:43,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:43,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:43,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:43,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:43,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 63 transitions, 630 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:43,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:43,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:43,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:43,718 INFO L124 PetriNetUnfolderBase]: 171/327 cut-off events. [2024-11-10 18:23:43,718 INFO L125 PetriNetUnfolderBase]: For 2135/2149 co-relation queries the response was YES. [2024-11-10 18:23:43,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 327 events. 171/327 cut-off events. For 2135/2149 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1269 event pairs, 11 based on Foata normal form. 1/326 useless extension candidates. Maximal degree in co-relation 1457. Up to 117 conditions per place. [2024-11-10 18:23:43,722 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 53 selfloop transitions, 23 changer transitions 9/88 dead transitions. [2024-11-10 18:23:43,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 88 transitions, 959 flow [2024-11-10 18:23:43,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:43,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 108 transitions. [2024-11-10 18:23:43,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-10 18:23:43,723 INFO L175 Difference]: Start difference. First operand has 82 places, 63 transitions, 630 flow. Second operand 9 states and 108 transitions. [2024-11-10 18:23:43,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 88 transitions, 959 flow [2024-11-10 18:23:43,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 88 transitions, 893 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:43,732 INFO L231 Difference]: Finished difference. Result has 83 places, 64 transitions, 634 flow [2024-11-10 18:23:43,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=634, PETRI_PLACES=83, PETRI_TRANSITIONS=64} [2024-11-10 18:23:43,733 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 55 predicate places. [2024-11-10 18:23:43,733 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 64 transitions, 634 flow [2024-11-10 18:23:43,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:43,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:43,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:43,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 18:23:43,734 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:43,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:43,734 INFO L85 PathProgramCache]: Analyzing trace with hash 923782958, now seen corresponding path program 19 times [2024-11-10 18:23:43,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:43,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91258998] [2024-11-10 18:23:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:43,842 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 18:23:43,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:43,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91258998] [2024-11-10 18:23:43,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91258998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:43,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:43,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:43,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959426653] [2024-11-10 18:23:43,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:43,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:43,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:43,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:43,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:43,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:43,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 64 transitions, 634 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:43,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:43,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:43,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:44,070 INFO L124 PetriNetUnfolderBase]: 179/343 cut-off events. [2024-11-10 18:23:44,071 INFO L125 PetriNetUnfolderBase]: For 2318/2332 co-relation queries the response was YES. [2024-11-10 18:23:44,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 343 events. 179/343 cut-off events. For 2318/2332 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1382 event pairs, 14 based on Foata normal form. 1/342 useless extension candidates. Maximal degree in co-relation 1528. Up to 183 conditions per place. [2024-11-10 18:23:44,075 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 53 selfloop transitions, 24 changer transitions 9/89 dead transitions. [2024-11-10 18:23:44,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 89 transitions, 981 flow [2024-11-10 18:23:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:44,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 111 transitions. [2024-11-10 18:23:44,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-11-10 18:23:44,077 INFO L175 Difference]: Start difference. First operand has 83 places, 64 transitions, 634 flow. Second operand 9 states and 111 transitions. [2024-11-10 18:23:44,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 89 transitions, 981 flow [2024-11-10 18:23:44,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 89 transitions, 902 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:44,085 INFO L231 Difference]: Finished difference. Result has 85 places, 66 transitions, 646 flow [2024-11-10 18:23:44,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=646, PETRI_PLACES=85, PETRI_TRANSITIONS=66} [2024-11-10 18:23:44,086 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 57 predicate places. [2024-11-10 18:23:44,086 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 66 transitions, 646 flow [2024-11-10 18:23:44,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:44,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:44,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:44,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 18:23:44,087 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:44,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:44,087 INFO L85 PathProgramCache]: Analyzing trace with hash -808681972, now seen corresponding path program 20 times [2024-11-10 18:23:44,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:44,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733624828] [2024-11-10 18:23:44,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:44,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:44,190 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 18:23:44,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:44,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733624828] [2024-11-10 18:23:44,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733624828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:44,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:44,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:23:44,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436849752] [2024-11-10 18:23:44,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:44,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:44,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:44,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:23:44,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:44,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 66 transitions, 646 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:44,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:44,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:44,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:44,428 INFO L124 PetriNetUnfolderBase]: 171/331 cut-off events. [2024-11-10 18:23:44,428 INFO L125 PetriNetUnfolderBase]: For 2221/2235 co-relation queries the response was YES. [2024-11-10 18:23:44,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 331 events. 171/331 cut-off events. For 2221/2235 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1310 event pairs, 17 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 1462. Up to 185 conditions per place. [2024-11-10 18:23:44,432 INFO L140 encePairwiseOnDemand]: 19/28 looper letters, 51 selfloop transitions, 21 changer transitions 11/86 dead transitions. [2024-11-10 18:23:44,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 86 transitions, 949 flow [2024-11-10 18:23:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 108 transitions. [2024-11-10 18:23:44,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-10 18:23:44,433 INFO L175 Difference]: Start difference. First operand has 85 places, 66 transitions, 646 flow. Second operand 9 states and 108 transitions. [2024-11-10 18:23:44,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 86 transitions, 949 flow [2024-11-10 18:23:44,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 86 transitions, 885 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:44,441 INFO L231 Difference]: Finished difference. Result has 85 places, 63 transitions, 594 flow [2024-11-10 18:23:44,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=594, PETRI_PLACES=85, PETRI_TRANSITIONS=63} [2024-11-10 18:23:44,442 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 57 predicate places. [2024-11-10 18:23:44,442 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 63 transitions, 594 flow [2024-11-10 18:23:44,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 18:23:44,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:44,442 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] [2024-11-10 18:23:44,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 18:23:44,443 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:44,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:44,444 INFO L85 PathProgramCache]: Analyzing trace with hash 876988005, now seen corresponding path program 1 times [2024-11-10 18:23:44,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:44,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131624659] [2024-11-10 18:23:44,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:44,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:44,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:44,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131624659] [2024-11-10 18:23:44,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131624659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:44,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784981472] [2024-11-10 18:23:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:44,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:44,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:44,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:44,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:23:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:44,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:23:44,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:44,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:44,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:44,661 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 18:23:44,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784981472] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:44,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 18:23:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-11-10 18:23:44,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725318556] [2024-11-10 18:23:44,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:44,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:44,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:44,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:44,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:23:44,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:44,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 63 transitions, 594 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:44,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:44,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:44,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:44,838 INFO L124 PetriNetUnfolderBase]: 242/479 cut-off events. [2024-11-10 18:23:44,838 INFO L125 PetriNetUnfolderBase]: For 3291/3305 co-relation queries the response was YES. [2024-11-10 18:23:44,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2074 conditions, 479 events. 242/479 cut-off events. For 3291/3305 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2102 event pairs, 13 based on Foata normal form. 17/496 useless extension candidates. Maximal degree in co-relation 2045. Up to 197 conditions per place. [2024-11-10 18:23:44,844 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 77 selfloop transitions, 24 changer transitions 0/104 dead transitions. [2024-11-10 18:23:44,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 104 transitions, 1113 flow [2024-11-10 18:23:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:23:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:23:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2024-11-10 18:23:44,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-11-10 18:23:44,845 INFO L175 Difference]: Start difference. First operand has 85 places, 63 transitions, 594 flow. Second operand 5 states and 83 transitions. [2024-11-10 18:23:44,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 104 transitions, 1113 flow [2024-11-10 18:23:44,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 104 transitions, 1037 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:44,854 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 739 flow [2024-11-10 18:23:44,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=739, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2024-11-10 18:23:44,856 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 54 predicate places. [2024-11-10 18:23:44,856 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 739 flow [2024-11-10 18:23:44,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:44,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:44,857 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] [2024-11-10 18:23:44,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 18:23:45,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-10 18:23:45,060 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:45,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -127068317, now seen corresponding path program 2 times [2024-11-10 18:23:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:45,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116379183] [2024-11-10 18:23:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:45,114 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 18:23:45,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:45,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116379183] [2024-11-10 18:23:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116379183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:45,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:45,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:45,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133182984] [2024-11-10 18:23:45,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:45,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:45,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:45,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:45,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:45,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:45,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 739 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:45,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:45,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:45,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:45,257 INFO L124 PetriNetUnfolderBase]: 206/408 cut-off events. [2024-11-10 18:23:45,258 INFO L125 PetriNetUnfolderBase]: For 3565/3579 co-relation queries the response was YES. [2024-11-10 18:23:45,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1937 conditions, 408 events. 206/408 cut-off events. For 3565/3579 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1717 event pairs, 14 based on Foata normal form. 14/422 useless extension candidates. Maximal degree in co-relation 1906. Up to 158 conditions per place. [2024-11-10 18:23:45,263 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 70 selfloop transitions, 19 changer transitions 2/94 dead transitions. [2024-11-10 18:23:45,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 94 transitions, 1089 flow [2024-11-10 18:23:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:23:45,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:23:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2024-11-10 18:23:45,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2024-11-10 18:23:45,264 INFO L175 Difference]: Start difference. First operand has 82 places, 70 transitions, 739 flow. Second operand 6 states and 86 transitions. [2024-11-10 18:23:45,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 94 transitions, 1089 flow [2024-11-10 18:23:45,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 94 transitions, 1065 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-10 18:23:45,274 INFO L231 Difference]: Finished difference. Result has 87 places, 66 transitions, 715 flow [2024-11-10 18:23:45,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=715, PETRI_PLACES=87, PETRI_TRANSITIONS=66} [2024-11-10 18:23:45,275 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 59 predicate places. [2024-11-10 18:23:45,275 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 66 transitions, 715 flow [2024-11-10 18:23:45,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:45,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:45,275 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] [2024-11-10 18:23:45,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 18:23:45,276 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:45,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:45,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2030486549, now seen corresponding path program 1 times [2024-11-10 18:23:45,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:45,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755619373] [2024-11-10 18:23:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:45,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:45,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755619373] [2024-11-10 18:23:45,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755619373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:45,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134770649] [2024-11-10 18:23:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:45,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:45,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:45,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:45,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:23:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:45,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:23:45,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:45,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:45,416 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 18:23:45,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134770649] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:45,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 18:23:45,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-11-10 18:23:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612697993] [2024-11-10 18:23:45,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:45,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:45,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:23:45,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:45,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 66 transitions, 715 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:45,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:45,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:45,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:45,595 INFO L124 PetriNetUnfolderBase]: 416/818 cut-off events. [2024-11-10 18:23:45,596 INFO L125 PetriNetUnfolderBase]: For 7776/7790 co-relation queries the response was YES. [2024-11-10 18:23:45,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3886 conditions, 818 events. 416/818 cut-off events. For 7776/7790 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4221 event pairs, 74 based on Foata normal form. 16/832 useless extension candidates. Maximal degree in co-relation 3854. Up to 275 conditions per place. [2024-11-10 18:23:45,605 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 106 selfloop transitions, 31 changer transitions 0/140 dead transitions. [2024-11-10 18:23:45,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 140 transitions, 1702 flow [2024-11-10 18:23:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:23:45,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:23:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2024-11-10 18:23:45,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6011904761904762 [2024-11-10 18:23:45,607 INFO L175 Difference]: Start difference. First operand has 87 places, 66 transitions, 715 flow. Second operand 6 states and 101 transitions. [2024-11-10 18:23:45,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 140 transitions, 1702 flow [2024-11-10 18:23:45,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 140 transitions, 1616 flow, removed 25 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:45,620 INFO L231 Difference]: Finished difference. Result has 87 places, 86 transitions, 1088 flow [2024-11-10 18:23:45,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1088, PETRI_PLACES=87, PETRI_TRANSITIONS=86} [2024-11-10 18:23:45,621 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 59 predicate places. [2024-11-10 18:23:45,621 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 86 transitions, 1088 flow [2024-11-10 18:23:45,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:45,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:45,622 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] [2024-11-10 18:23:45,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:23:45,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-10 18:23:45,827 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:45,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:45,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1166422825, now seen corresponding path program 2 times [2024-11-10 18:23:45,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:45,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448494358] [2024-11-10 18:23:45,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:45,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:45,863 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 18:23:45,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:45,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448494358] [2024-11-10 18:23:45,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448494358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:45,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:45,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:45,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272378084] [2024-11-10 18:23:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:45,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:45,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:45,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 86 transitions, 1088 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:45,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:45,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:45,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:46,073 INFO L124 PetriNetUnfolderBase]: 404/807 cut-off events. [2024-11-10 18:23:46,073 INFO L125 PetriNetUnfolderBase]: For 8126/8148 co-relation queries the response was YES. [2024-11-10 18:23:46,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3955 conditions, 807 events. 404/807 cut-off events. For 8126/8148 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4182 event pairs, 66 based on Foata normal form. 24/829 useless extension candidates. Maximal degree in co-relation 3924. Up to 211 conditions per place. [2024-11-10 18:23:46,082 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 83 selfloop transitions, 29 changer transitions 8/123 dead transitions. [2024-11-10 18:23:46,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 123 transitions, 1636 flow [2024-11-10 18:23:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:23:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:23:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 98 transitions. [2024-11-10 18:23:46,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 18:23:46,083 INFO L175 Difference]: Start difference. First operand has 87 places, 86 transitions, 1088 flow. Second operand 7 states and 98 transitions. [2024-11-10 18:23:46,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 123 transitions, 1636 flow [2024-11-10 18:23:46,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 123 transitions, 1608 flow, removed 14 selfloop flow, removed 0 redundant places. [2024-11-10 18:23:46,101 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 1156 flow [2024-11-10 18:23:46,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1156, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2024-11-10 18:23:46,102 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 67 predicate places. [2024-11-10 18:23:46,102 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 1156 flow [2024-11-10 18:23:46,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:46,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:46,103 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] [2024-11-10 18:23:46,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 18:23:46,103 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:46,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash 414874717, now seen corresponding path program 3 times [2024-11-10 18:23:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:46,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399835803] [2024-11-10 18:23:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:46,135 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 18:23:46,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:46,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399835803] [2024-11-10 18:23:46,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399835803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:46,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:46,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:46,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149402698] [2024-11-10 18:23:46,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:46,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:46,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:46,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:46,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 1156 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:46,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:46,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:46,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:46,337 INFO L124 PetriNetUnfolderBase]: 350/696 cut-off events. [2024-11-10 18:23:46,337 INFO L125 PetriNetUnfolderBase]: For 7723/7745 co-relation queries the response was YES. [2024-11-10 18:23:46,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3604 conditions, 696 events. 350/696 cut-off events. For 7723/7745 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3448 event pairs, 63 based on Foata normal form. 19/713 useless extension candidates. Maximal degree in co-relation 3570. Up to 182 conditions per place. [2024-11-10 18:23:46,345 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 96 selfloop transitions, 24 changer transitions 6/129 dead transitions. [2024-11-10 18:23:46,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 129 transitions, 1676 flow [2024-11-10 18:23:46,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:23:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:23:46,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2024-11-10 18:23:46,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5223214285714286 [2024-11-10 18:23:46,346 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 1156 flow. Second operand 8 states and 117 transitions. [2024-11-10 18:23:46,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 129 transitions, 1676 flow [2024-11-10 18:23:46,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 129 transitions, 1609 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-10 18:23:46,361 INFO L231 Difference]: Finished difference. Result has 99 places, 81 transitions, 1067 flow [2024-11-10 18:23:46,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1067, PETRI_PLACES=99, PETRI_TRANSITIONS=81} [2024-11-10 18:23:46,363 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 71 predicate places. [2024-11-10 18:23:46,363 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 81 transitions, 1067 flow [2024-11-10 18:23:46,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:46,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:46,363 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] [2024-11-10 18:23:46,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 18:23:46,364 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:46,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 920594357, now seen corresponding path program 3 times [2024-11-10 18:23:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:46,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500085191] [2024-11-10 18:23:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:46,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:46,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:46,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500085191] [2024-11-10 18:23:46,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500085191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521379881] [2024-11-10 18:23:46,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:23:46,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:46,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:46,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:23:46,443 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:23:46,443 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:46,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:23:46,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:46,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:46,498 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 18:23:46,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521379881] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:46,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 18:23:46,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-11-10 18:23:46,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411488992] [2024-11-10 18:23:46,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:46,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:46,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:46,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:23:46,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:46,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 81 transitions, 1067 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:46,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:46,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:46,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:46,701 INFO L124 PetriNetUnfolderBase]: 435/867 cut-off events. [2024-11-10 18:23:46,701 INFO L125 PetriNetUnfolderBase]: For 9756/9772 co-relation queries the response was YES. [2024-11-10 18:23:46,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4416 conditions, 867 events. 435/867 cut-off events. For 9756/9772 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4488 event pairs, 94 based on Foata normal form. 21/884 useless extension candidates. Maximal degree in co-relation 4383. Up to 377 conditions per place. [2024-11-10 18:23:46,715 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 99 selfloop transitions, 43 changer transitions 0/145 dead transitions. [2024-11-10 18:23:46,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 145 transitions, 2002 flow [2024-11-10 18:23:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:23:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:23:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2024-11-10 18:23:46,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-11-10 18:23:46,717 INFO L175 Difference]: Start difference. First operand has 99 places, 81 transitions, 1067 flow. Second operand 6 states and 100 transitions. [2024-11-10 18:23:46,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 145 transitions, 2002 flow [2024-11-10 18:23:46,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 145 transitions, 1959 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 18:23:46,740 INFO L231 Difference]: Finished difference. Result has 106 places, 99 transitions, 1519 flow [2024-11-10 18:23:46,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1519, PETRI_PLACES=106, PETRI_TRANSITIONS=99} [2024-11-10 18:23:46,741 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 78 predicate places. [2024-11-10 18:23:46,741 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 99 transitions, 1519 flow [2024-11-10 18:23:46,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:46,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:46,742 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] [2024-11-10 18:23:46,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 18:23:46,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:46,947 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:46,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:46,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1368768331, now seen corresponding path program 4 times [2024-11-10 18:23:46,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:46,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648608795] [2024-11-10 18:23:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:46,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:46,982 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 18:23:46,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:46,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648608795] [2024-11-10 18:23:46,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648608795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:46,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:46,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:46,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331447704] [2024-11-10 18:23:46,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:46,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:46,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:46,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:46,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:46,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:46,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 99 transitions, 1519 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:46,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:46,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:46,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:47,209 INFO L124 PetriNetUnfolderBase]: 429/866 cut-off events. [2024-11-10 18:23:47,210 INFO L125 PetriNetUnfolderBase]: For 11252/11272 co-relation queries the response was YES. [2024-11-10 18:23:47,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4687 conditions, 866 events. 429/866 cut-off events. For 11252/11272 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4529 event pairs, 69 based on Foata normal form. 22/884 useless extension candidates. Maximal degree in co-relation 4651. Up to 242 conditions per place. [2024-11-10 18:23:47,228 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 101 selfloop transitions, 39 changer transitions 2/145 dead transitions. [2024-11-10 18:23:47,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 145 transitions, 2155 flow [2024-11-10 18:23:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:23:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:23:47,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 114 transitions. [2024-11-10 18:23:47,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5089285714285714 [2024-11-10 18:23:47,230 INFO L175 Difference]: Start difference. First operand has 106 places, 99 transitions, 1519 flow. Second operand 8 states and 114 transitions. [2024-11-10 18:23:47,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 145 transitions, 2155 flow [2024-11-10 18:23:47,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 145 transitions, 2116 flow, removed 16 selfloop flow, removed 1 redundant places. [2024-11-10 18:23:47,259 INFO L231 Difference]: Finished difference. Result has 113 places, 97 transitions, 1534 flow [2024-11-10 18:23:47,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1534, PETRI_PLACES=113, PETRI_TRANSITIONS=97} [2024-11-10 18:23:47,263 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 85 predicate places. [2024-11-10 18:23:47,263 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 97 transitions, 1534 flow [2024-11-10 18:23:47,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:47,264 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] [2024-11-10 18:23:47,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 18:23:47,264 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:47,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1776565105, now seen corresponding path program 5 times [2024-11-10 18:23:47,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:47,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158329820] [2024-11-10 18:23:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:47,308 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 18:23:47,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:47,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158329820] [2024-11-10 18:23:47,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158329820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:47,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:47,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:47,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128204838] [2024-11-10 18:23:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:47,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:47,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:47,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:47,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:47,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:47,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 97 transitions, 1534 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:47,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:47,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:47,507 INFO L124 PetriNetUnfolderBase]: 386/777 cut-off events. [2024-11-10 18:23:47,507 INFO L125 PetriNetUnfolderBase]: For 11121/11143 co-relation queries the response was YES. [2024-11-10 18:23:47,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4356 conditions, 777 events. 386/777 cut-off events. For 11121/11143 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3940 event pairs, 90 based on Foata normal form. 16/789 useless extension candidates. Maximal degree in co-relation 4319. Up to 427 conditions per place. [2024-11-10 18:23:47,516 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 68 selfloop transitions, 32 changer transitions 9/112 dead transitions. [2024-11-10 18:23:47,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 112 transitions, 1825 flow [2024-11-10 18:23:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:23:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:23:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-11-10 18:23:47,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44387755102040816 [2024-11-10 18:23:47,517 INFO L175 Difference]: Start difference. First operand has 113 places, 97 transitions, 1534 flow. Second operand 7 states and 87 transitions. [2024-11-10 18:23:47,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 112 transitions, 1825 flow [2024-11-10 18:23:47,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 112 transitions, 1658 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:47,536 INFO L231 Difference]: Finished difference. Result has 114 places, 91 transitions, 1326 flow [2024-11-10 18:23:47,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1296, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1326, PETRI_PLACES=114, PETRI_TRANSITIONS=91} [2024-11-10 18:23:47,538 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 86 predicate places. [2024-11-10 18:23:47,539 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 91 transitions, 1326 flow [2024-11-10 18:23:47,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:47,539 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] [2024-11-10 18:23:47,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 18:23:47,539 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:47,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash -801558289, now seen corresponding path program 4 times [2024-11-10 18:23:47,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:47,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43538491] [2024-11-10 18:23:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:47,578 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 18:23:47,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43538491] [2024-11-10 18:23:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43538491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:47,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:47,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:47,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350126851] [2024-11-10 18:23:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:47,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:47,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:47,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:47,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 91 transitions, 1326 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:47,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:47,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:47,749 INFO L124 PetriNetUnfolderBase]: 336/676 cut-off events. [2024-11-10 18:23:47,750 INFO L125 PetriNetUnfolderBase]: For 8697/8713 co-relation queries the response was YES. [2024-11-10 18:23:47,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3679 conditions, 676 events. 336/676 cut-off events. For 8697/8713 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3283 event pairs, 44 based on Foata normal form. 24/696 useless extension candidates. Maximal degree in co-relation 3642. Up to 390 conditions per place. [2024-11-10 18:23:47,756 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 82 selfloop transitions, 26 changer transitions 1/112 dead transitions. [2024-11-10 18:23:47,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 112 transitions, 1645 flow [2024-11-10 18:23:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:23:47,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:23:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-11-10 18:23:47,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-10 18:23:47,758 INFO L175 Difference]: Start difference. First operand has 114 places, 91 transitions, 1326 flow. Second operand 5 states and 77 transitions. [2024-11-10 18:23:47,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 112 transitions, 1645 flow [2024-11-10 18:23:47,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 112 transitions, 1563 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-10 18:23:47,775 INFO L231 Difference]: Finished difference. Result has 113 places, 89 transitions, 1252 flow [2024-11-10 18:23:47,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1197, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1252, PETRI_PLACES=113, PETRI_TRANSITIONS=89} [2024-11-10 18:23:47,776 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 85 predicate places. [2024-11-10 18:23:47,776 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 89 transitions, 1252 flow [2024-11-10 18:23:47,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:47,777 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] [2024-11-10 18:23:47,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 18:23:47,777 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:47,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:47,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1376308745, now seen corresponding path program 5 times [2024-11-10 18:23:47,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:47,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038531461] [2024-11-10 18:23:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:47,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:47,809 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 18:23:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038531461] [2024-11-10 18:23:47,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038531461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:47,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:23:47,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:23:47,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843832290] [2024-11-10 18:23:47,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:47,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:23:47,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:47,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:23:47,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:23:47,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:47,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 89 transitions, 1252 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:47,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:47,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:47,966 INFO L124 PetriNetUnfolderBase]: 280/564 cut-off events. [2024-11-10 18:23:47,966 INFO L125 PetriNetUnfolderBase]: For 7043/7059 co-relation queries the response was YES. [2024-11-10 18:23:47,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3090 conditions, 564 events. 280/564 cut-off events. For 7043/7059 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2563 event pairs, 22 based on Foata normal form. 30/591 useless extension candidates. Maximal degree in co-relation 3052. Up to 170 conditions per place. [2024-11-10 18:23:47,974 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 81 selfloop transitions, 21 changer transitions 3/108 dead transitions. [2024-11-10 18:23:47,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 108 transitions, 1570 flow [2024-11-10 18:23:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:23:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:23:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 84 transitions. [2024-11-10 18:23:47,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 18:23:47,975 INFO L175 Difference]: Start difference. First operand has 113 places, 89 transitions, 1252 flow. Second operand 6 states and 84 transitions. [2024-11-10 18:23:47,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 108 transitions, 1570 flow [2024-11-10 18:23:47,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 108 transitions, 1534 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 18:23:47,992 INFO L231 Difference]: Finished difference. Result has 114 places, 80 transitions, 1104 flow [2024-11-10 18:23:47,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1104, PETRI_PLACES=114, PETRI_TRANSITIONS=80} [2024-11-10 18:23:47,992 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 86 predicate places. [2024-11-10 18:23:47,992 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 80 transitions, 1104 flow [2024-11-10 18:23:47,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 18:23:47,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:47,993 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:47,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 18:23:47,993 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:47,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:47,994 INFO L85 PathProgramCache]: Analyzing trace with hash -473587190, now seen corresponding path program 1 times [2024-11-10 18:23:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:47,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029882772] [2024-11-10 18:23:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:47,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:48,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:48,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:48,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029882772] [2024-11-10 18:23:48,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029882772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:48,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002597960] [2024-11-10 18:23:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:48,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:48,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:48,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:48,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:23:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:48,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:48,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:48,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:48,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002597960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:23:48,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:23:48,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:23:48,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778786163] [2024-11-10 18:23:48,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:23:48,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:23:48,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:48,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:23:48,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:23:48,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:48,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 80 transitions, 1104 flow. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 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 18:23:48,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:48,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:48,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:50,286 INFO L124 PetriNetUnfolderBase]: 677/1380 cut-off events. [2024-11-10 18:23:50,286 INFO L125 PetriNetUnfolderBase]: For 16744/16760 co-relation queries the response was YES. [2024-11-10 18:23:50,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7008 conditions, 1380 events. 677/1380 cut-off events. For 16744/16760 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7931 event pairs, 43 based on Foata normal form. 18/1398 useless extension candidates. Maximal degree in co-relation 6970. Up to 236 conditions per place. [2024-11-10 18:23:50,303 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 128 selfloop transitions, 85 changer transitions 64/280 dead transitions. [2024-11-10 18:23:50,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 280 transitions, 3561 flow [2024-11-10 18:23:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-10 18:23:50,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-10 18:23:50,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 418 transitions. [2024-11-10 18:23:50,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4146825396825397 [2024-11-10 18:23:50,308 INFO L175 Difference]: Start difference. First operand has 114 places, 80 transitions, 1104 flow. Second operand 36 states and 418 transitions. [2024-11-10 18:23:50,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 280 transitions, 3561 flow [2024-11-10 18:23:50,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 280 transitions, 3412 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:50,369 INFO L231 Difference]: Finished difference. Result has 159 places, 128 transitions, 2164 flow [2024-11-10 18:23:50,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1031, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2164, PETRI_PLACES=159, PETRI_TRANSITIONS=128} [2024-11-10 18:23:50,371 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 131 predicate places. [2024-11-10 18:23:50,371 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 128 transitions, 2164 flow [2024-11-10 18:23:50,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 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 18:23:50,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:50,372 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:50,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 18:23:50,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:50,573 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:50,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1229642822, now seen corresponding path program 2 times [2024-11-10 18:23:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:50,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473656806] [2024-11-10 18:23:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:50,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:50,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:50,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473656806] [2024-11-10 18:23:50,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473656806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:50,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827216328] [2024-11-10 18:23:50,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:23:50,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:50,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:50,709 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:50,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:23:50,755 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:23:50,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:50,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:50,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:50,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:51,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827216328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:23:51,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:23:51,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:23:51,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913795820] [2024-11-10 18:23:51,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:23:51,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:23:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:23:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:23:51,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:51,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 128 transitions, 2164 flow. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 23 states have internal predecessors, (174), 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 18:23:51,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:51,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:51,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:52,007 INFO L124 PetriNetUnfolderBase]: 814/1717 cut-off events. [2024-11-10 18:23:52,008 INFO L125 PetriNetUnfolderBase]: For 28952/28964 co-relation queries the response was YES. [2024-11-10 18:23:52,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9326 conditions, 1717 events. 814/1717 cut-off events. For 28952/28964 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10974 event pairs, 94 based on Foata normal form. 12/1726 useless extension candidates. Maximal degree in co-relation 9270. Up to 632 conditions per place. [2024-11-10 18:23:52,033 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 103 selfloop transitions, 104 changer transitions 18/228 dead transitions. [2024-11-10 18:23:52,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 228 transitions, 3834 flow [2024-11-10 18:23:52,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 18:23:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 18:23:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 188 transitions. [2024-11-10 18:23:52,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41964285714285715 [2024-11-10 18:23:52,039 INFO L175 Difference]: Start difference. First operand has 159 places, 128 transitions, 2164 flow. Second operand 16 states and 188 transitions. [2024-11-10 18:23:52,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 228 transitions, 3834 flow [2024-11-10 18:23:52,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 228 transitions, 3063 flow, removed 299 selfloop flow, removed 17 redundant places. [2024-11-10 18:23:52,111 INFO L231 Difference]: Finished difference. Result has 151 places, 164 transitions, 2364 flow [2024-11-10 18:23:52,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1694, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2364, PETRI_PLACES=151, PETRI_TRANSITIONS=164} [2024-11-10 18:23:52,112 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 123 predicate places. [2024-11-10 18:23:52,112 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 164 transitions, 2364 flow [2024-11-10 18:23:52,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 23 states have internal predecessors, (174), 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 18:23:52,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:52,113 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:52,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 18:23:52,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-10 18:23:52,314 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:52,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:52,314 INFO L85 PathProgramCache]: Analyzing trace with hash 303075916, now seen corresponding path program 3 times [2024-11-10 18:23:52,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:52,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535216234] [2024-11-10 18:23:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:52,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:52,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:52,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535216234] [2024-11-10 18:23:52,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535216234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:52,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963110689] [2024-11-10 18:23:52,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:23:52,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:52,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:52,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:52,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 18:23:52,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:23:52,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:52,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:52,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:52,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:52,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963110689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:23:52,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:23:52,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:23:52,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086298789] [2024-11-10 18:23:52,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:23:52,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:23:52,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:52,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:23:52,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:23:52,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:52,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 164 transitions, 2364 flow. Second operand has 23 states, 23 states have (on average 7.391304347826087) internal successors, (170), 23 states have internal predecessors, (170), 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 18:23:52,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:52,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:52,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:53,735 INFO L124 PetriNetUnfolderBase]: 890/1832 cut-off events. [2024-11-10 18:23:53,735 INFO L125 PetriNetUnfolderBase]: For 21890/21906 co-relation queries the response was YES. [2024-11-10 18:23:53,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9235 conditions, 1832 events. 890/1832 cut-off events. For 21890/21906 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11469 event pairs, 55 based on Foata normal form. 20/1852 useless extension candidates. Maximal degree in co-relation 9185. Up to 496 conditions per place. [2024-11-10 18:23:53,753 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 86 selfloop transitions, 141 changer transitions 24/254 dead transitions. [2024-11-10 18:23:53,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 254 transitions, 3853 flow [2024-11-10 18:23:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 18:23:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-10 18:23:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 208 transitions. [2024-11-10 18:23:53,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4126984126984127 [2024-11-10 18:23:53,755 INFO L175 Difference]: Start difference. First operand has 151 places, 164 transitions, 2364 flow. Second operand 18 states and 208 transitions. [2024-11-10 18:23:53,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 254 transitions, 3853 flow [2024-11-10 18:23:53,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 254 transitions, 3762 flow, removed 17 selfloop flow, removed 7 redundant places. [2024-11-10 18:23:53,814 INFO L231 Difference]: Finished difference. Result has 165 places, 193 transitions, 3257 flow [2024-11-10 18:23:53,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2287, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3257, PETRI_PLACES=165, PETRI_TRANSITIONS=193} [2024-11-10 18:23:53,815 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 137 predicate places. [2024-11-10 18:23:53,815 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 193 transitions, 3257 flow [2024-11-10 18:23:53,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.391304347826087) internal successors, (170), 23 states have internal predecessors, (170), 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 18:23:53,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:53,815 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:53,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 18:23:54,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:54,020 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:54,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1429256118, now seen corresponding path program 4 times [2024-11-10 18:23:54,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646184689] [2024-11-10 18:23:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:54,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:54,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:54,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646184689] [2024-11-10 18:23:54,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646184689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:54,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917536942] [2024-11-10 18:23:54,160 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:23:54,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:54,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:54,162 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:54,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 18:23:54,214 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:23:54,214 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:54,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:54,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:54,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:54,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917536942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:23:54,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:23:54,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:23:54,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622195769] [2024-11-10 18:23:54,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:23:54,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:23:54,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:54,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:23:54,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:23:54,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:54,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 193 transitions, 3257 flow. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 23 states have internal predecessors, (174), 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 18:23:54,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:54,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:54,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:55,240 INFO L124 PetriNetUnfolderBase]: 840/1766 cut-off events. [2024-11-10 18:23:55,240 INFO L125 PetriNetUnfolderBase]: For 27309/27325 co-relation queries the response was YES. [2024-11-10 18:23:55,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9832 conditions, 1766 events. 840/1766 cut-off events. For 27309/27325 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11258 event pairs, 69 based on Foata normal form. 18/1784 useless extension candidates. Maximal degree in co-relation 9778. Up to 525 conditions per place. [2024-11-10 18:23:55,259 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 86 selfloop transitions, 138 changer transitions 14/241 dead transitions. [2024-11-10 18:23:55,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 241 transitions, 4090 flow [2024-11-10 18:23:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 18:23:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 18:23:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 189 transitions. [2024-11-10 18:23:55,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.421875 [2024-11-10 18:23:55,261 INFO L175 Difference]: Start difference. First operand has 165 places, 193 transitions, 3257 flow. Second operand 16 states and 189 transitions. [2024-11-10 18:23:55,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 241 transitions, 4090 flow [2024-11-10 18:23:55,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 241 transitions, 3809 flow, removed 101 selfloop flow, removed 6 redundant places. [2024-11-10 18:23:55,405 INFO L231 Difference]: Finished difference. Result has 175 places, 194 transitions, 3265 flow [2024-11-10 18:23:55,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3265, PETRI_PLACES=175, PETRI_TRANSITIONS=194} [2024-11-10 18:23:55,405 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 147 predicate places. [2024-11-10 18:23:55,405 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 194 transitions, 3265 flow [2024-11-10 18:23:55,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 23 states have internal predecessors, (174), 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 18:23:55,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:55,406 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:55,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 18:23:55,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:55,607 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:55,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:55,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1577680396, now seen corresponding path program 5 times [2024-11-10 18:23:55,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:55,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761878772] [2024-11-10 18:23:55,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:55,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:55,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:55,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761878772] [2024-11-10 18:23:55,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761878772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:55,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376377579] [2024-11-10 18:23:55,741 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:23:55,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:55,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:55,743 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:55,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 18:23:55,790 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:23:55,790 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:55,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:23:55,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:55,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:23:55,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376377579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:23:55,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:23:55,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-10 18:23:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099235712] [2024-11-10 18:23:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:23:55,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:23:55,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:23:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:23:55,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:55,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 194 transitions, 3265 flow. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:55,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:55,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:55,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:56,306 INFO L124 PetriNetUnfolderBase]: 804/1690 cut-off events. [2024-11-10 18:23:56,306 INFO L125 PetriNetUnfolderBase]: For 25980/25996 co-relation queries the response was YES. [2024-11-10 18:23:56,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9639 conditions, 1690 events. 804/1690 cut-off events. For 25980/25996 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 10568 event pairs, 161 based on Foata normal form. 10/1699 useless extension candidates. Maximal degree in co-relation 9583. Up to 999 conditions per place. [2024-11-10 18:23:56,322 INFO L140 encePairwiseOnDemand]: 20/28 looper letters, 118 selfloop transitions, 50 changer transitions 51/222 dead transitions. [2024-11-10 18:23:56,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 222 transitions, 3996 flow [2024-11-10 18:23:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:23:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:23:56,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 109 transitions. [2024-11-10 18:23:56,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43253968253968256 [2024-11-10 18:23:56,323 INFO L175 Difference]: Start difference. First operand has 175 places, 194 transitions, 3265 flow. Second operand 9 states and 109 transitions. [2024-11-10 18:23:56,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 222 transitions, 3996 flow [2024-11-10 18:23:56,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 222 transitions, 3752 flow, removed 9 selfloop flow, removed 13 redundant places. [2024-11-10 18:23:56,404 INFO L231 Difference]: Finished difference. Result has 171 places, 162 transitions, 2561 flow [2024-11-10 18:23:56,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=3033, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2561, PETRI_PLACES=171, PETRI_TRANSITIONS=162} [2024-11-10 18:23:56,405 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 143 predicate places. [2024-11-10 18:23:56,405 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 162 transitions, 2561 flow [2024-11-10 18:23:56,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:23:56,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:56,406 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:56,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 18:23:56,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-10 18:23:56,607 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:56,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:56,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1141527362, now seen corresponding path program 6 times [2024-11-10 18:23:56,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:56,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914050796] [2024-11-10 18:23:56,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:56,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:56,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914050796] [2024-11-10 18:23:56,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914050796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:56,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700241747] [2024-11-10 18:23:56,726 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:23:56,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:56,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:56,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:56,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 18:23:56,774 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-10 18:23:56,774 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:56,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:56,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:56,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:57,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700241747] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:23:57,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:23:57,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:23:57,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823761814] [2024-11-10 18:23:57,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:23:57,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:23:57,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:57,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:23:57,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:23:57,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:57,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 162 transitions, 2561 flow. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 23 states have internal predecessors, (174), 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 18:23:57,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:57,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:57,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:57,810 INFO L124 PetriNetUnfolderBase]: 756/1610 cut-off events. [2024-11-10 18:23:57,811 INFO L125 PetriNetUnfolderBase]: For 20994/21010 co-relation queries the response was YES. [2024-11-10 18:23:57,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8385 conditions, 1610 events. 756/1610 cut-off events. For 20994/21010 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10073 event pairs, 107 based on Foata normal form. 20/1630 useless extension candidates. Maximal degree in co-relation 8328. Up to 752 conditions per place. [2024-11-10 18:23:57,828 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 91 selfloop transitions, 99 changer transitions 22/215 dead transitions. [2024-11-10 18:23:57,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 215 transitions, 3568 flow [2024-11-10 18:23:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:23:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:23:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 148 transitions. [2024-11-10 18:23:57,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-11-10 18:23:57,830 INFO L175 Difference]: Start difference. First operand has 171 places, 162 transitions, 2561 flow. Second operand 12 states and 148 transitions. [2024-11-10 18:23:57,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 215 transitions, 3568 flow [2024-11-10 18:23:57,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 215 transitions, 3250 flow, removed 22 selfloop flow, removed 15 redundant places. [2024-11-10 18:23:57,890 INFO L231 Difference]: Finished difference. Result has 156 places, 164 transitions, 2543 flow [2024-11-10 18:23:57,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2291, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2543, PETRI_PLACES=156, PETRI_TRANSITIONS=164} [2024-11-10 18:23:57,892 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 128 predicate places. [2024-11-10 18:23:57,892 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 164 transitions, 2543 flow [2024-11-10 18:23:57,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 23 states have internal predecessors, (174), 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 18:23:57,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:57,892 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:57,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 18:23:58,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-10 18:23:58,093 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:58,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:58,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1695307010, now seen corresponding path program 7 times [2024-11-10 18:23:58,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:58,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471737461] [2024-11-10 18:23:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:58,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:58,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:58,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471737461] [2024-11-10 18:23:58,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471737461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:58,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20021093] [2024-11-10 18:23:58,214 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:23:58,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:58,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:58,216 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:58,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 18:23:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:58,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:58,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:58,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:23:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:58,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20021093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:23:58,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:23:58,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:23:58,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321060045] [2024-11-10 18:23:58,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:23:58,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:23:58,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:23:58,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:23:58,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:23:58,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:23:58,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 164 transitions, 2543 flow. Second operand has 23 states, 23 states have (on average 7.391304347826087) internal successors, (170), 23 states have internal predecessors, (170), 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 18:23:58,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:23:58,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:23:58,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:23:59,288 INFO L124 PetriNetUnfolderBase]: 733/1592 cut-off events. [2024-11-10 18:23:59,288 INFO L125 PetriNetUnfolderBase]: For 17825/17841 co-relation queries the response was YES. [2024-11-10 18:23:59,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8081 conditions, 1592 events. 733/1592 cut-off events. For 17825/17841 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9920 event pairs, 98 based on Foata normal form. 21/1613 useless extension candidates. Maximal degree in co-relation 8030. Up to 512 conditions per place. [2024-11-10 18:23:59,302 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 100 selfloop transitions, 89 changer transitions 20/212 dead transitions. [2024-11-10 18:23:59,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 212 transitions, 3434 flow [2024-11-10 18:23:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:23:59,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 18:23:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 157 transitions. [2024-11-10 18:23:59,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43131868131868134 [2024-11-10 18:23:59,304 INFO L175 Difference]: Start difference. First operand has 156 places, 164 transitions, 2543 flow. Second operand 13 states and 157 transitions. [2024-11-10 18:23:59,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 212 transitions, 3434 flow [2024-11-10 18:23:59,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 212 transitions, 3303 flow, removed 17 selfloop flow, removed 9 redundant places. [2024-11-10 18:23:59,355 INFO L231 Difference]: Finished difference. Result has 160 places, 154 transitions, 2506 flow [2024-11-10 18:23:59,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2426, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2506, PETRI_PLACES=160, PETRI_TRANSITIONS=154} [2024-11-10 18:23:59,356 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 132 predicate places. [2024-11-10 18:23:59,356 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 154 transitions, 2506 flow [2024-11-10 18:23:59,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.391304347826087) internal successors, (170), 23 states have internal predecessors, (170), 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 18:23:59,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:23:59,357 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:23:59,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 18:23:59,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-10 18:23:59,558 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:23:59,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:23:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash -107005744, now seen corresponding path program 8 times [2024-11-10 18:23:59,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:23:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960793616] [2024-11-10 18:23:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:23:59,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:23:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:23:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:59,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:23:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960793616] [2024-11-10 18:23:59,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960793616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:23:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115185240] [2024-11-10 18:23:59,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:23:59,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:23:59,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:23:59,673 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:23:59,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 18:23:59,726 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:23:59,727 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:23:59,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:23:59,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:23:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:23:59,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:00,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115185240] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:00,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:00,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-10 18:24:00,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420209823] [2024-11-10 18:24:00,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:00,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:00,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:00,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:00,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:00,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:00,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 154 transitions, 2506 flow. Second operand has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 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 18:24:00,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:00,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:00,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:00,801 INFO L124 PetriNetUnfolderBase]: 771/1652 cut-off events. [2024-11-10 18:24:00,802 INFO L125 PetriNetUnfolderBase]: For 21210/21226 co-relation queries the response was YES. [2024-11-10 18:24:00,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9191 conditions, 1652 events. 771/1652 cut-off events. For 21210/21226 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10248 event pairs, 131 based on Foata normal form. 18/1670 useless extension candidates. Maximal degree in co-relation 9139. Up to 887 conditions per place. [2024-11-10 18:24:00,822 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 107 selfloop transitions, 88 changer transitions 20/218 dead transitions. [2024-11-10 18:24:00,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 218 transitions, 3833 flow [2024-11-10 18:24:00,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:24:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 18:24:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 143 transitions. [2024-11-10 18:24:00,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-10 18:24:00,825 INFO L175 Difference]: Start difference. First operand has 160 places, 154 transitions, 2506 flow. Second operand 13 states and 143 transitions. [2024-11-10 18:24:00,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 218 transitions, 3833 flow [2024-11-10 18:24:00,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 218 transitions, 3622 flow, removed 7 selfloop flow, removed 10 redundant places. [2024-11-10 18:24:00,888 INFO L231 Difference]: Finished difference. Result has 162 places, 167 transitions, 2811 flow [2024-11-10 18:24:00,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2345, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2811, PETRI_PLACES=162, PETRI_TRANSITIONS=167} [2024-11-10 18:24:00,889 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 134 predicate places. [2024-11-10 18:24:00,889 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 167 transitions, 2811 flow [2024-11-10 18:24:00,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 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 18:24:00,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:00,889 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:00,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-10 18:24:01,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-10 18:24:01,090 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:01,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1762418390, now seen corresponding path program 9 times [2024-11-10 18:24:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:01,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337888429] [2024-11-10 18:24:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337888429] [2024-11-10 18:24:01,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337888429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171022194] [2024-11-10 18:24:01,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:24:01,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:01,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:01,210 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:01,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 18:24:01,255 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-10 18:24:01,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:01,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:01,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:01,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:01,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171022194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:01,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:01,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-10 18:24:01,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878695297] [2024-11-10 18:24:01,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:01,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:01,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:01,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:01,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:01,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 167 transitions, 2811 flow. Second operand has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 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 18:24:01,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:01,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:01,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:02,095 INFO L124 PetriNetUnfolderBase]: 772/1660 cut-off events. [2024-11-10 18:24:02,095 INFO L125 PetriNetUnfolderBase]: For 22438/22454 co-relation queries the response was YES. [2024-11-10 18:24:02,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9138 conditions, 1660 events. 772/1660 cut-off events. For 22438/22454 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10305 event pairs, 133 based on Foata normal form. 19/1679 useless extension candidates. Maximal degree in co-relation 9083. Up to 887 conditions per place. [2024-11-10 18:24:02,110 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 104 selfloop transitions, 86 changer transitions 18/211 dead transitions. [2024-11-10 18:24:02,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 211 transitions, 3734 flow [2024-11-10 18:24:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:24:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 18:24:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 142 transitions. [2024-11-10 18:24:02,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3901098901098901 [2024-11-10 18:24:02,112 INFO L175 Difference]: Start difference. First operand has 162 places, 167 transitions, 2811 flow. Second operand 13 states and 142 transitions. [2024-11-10 18:24:02,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 211 transitions, 3734 flow [2024-11-10 18:24:02,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 211 transitions, 3591 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-10 18:24:02,176 INFO L231 Difference]: Finished difference. Result has 165 places, 165 transitions, 2825 flow [2024-11-10 18:24:02,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2671, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2825, PETRI_PLACES=165, PETRI_TRANSITIONS=165} [2024-11-10 18:24:02,177 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 137 predicate places. [2024-11-10 18:24:02,177 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 165 transitions, 2825 flow [2024-11-10 18:24:02,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.409090909090909) internal successors, (163), 22 states have internal predecessors, (163), 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 18:24:02,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:02,177 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:02,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-10 18:24:02,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-10 18:24:02,378 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:02,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:02,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1925731514, now seen corresponding path program 10 times [2024-11-10 18:24:02,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:02,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873146510] [2024-11-10 18:24:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:02,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873146510] [2024-11-10 18:24:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873146510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15315046] [2024-11-10 18:24:02,499 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:24:02,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:02,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:02,501 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:02,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 18:24:02,539 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:24:02,540 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:02,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:02,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:02,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:02,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15315046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:02,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:02,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-10 18:24:02,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643896415] [2024-11-10 18:24:02,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:02,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:02,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:02,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:02,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:02,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:02,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 165 transitions, 2825 flow. Second operand has 22 states, 22 states have (on average 7.5) internal successors, (165), 22 states have internal predecessors, (165), 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 18:24:02,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:02,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:02,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:03,386 INFO L124 PetriNetUnfolderBase]: 897/1919 cut-off events. [2024-11-10 18:24:03,386 INFO L125 PetriNetUnfolderBase]: For 26182/26198 co-relation queries the response was YES. [2024-11-10 18:24:03,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10499 conditions, 1919 events. 897/1919 cut-off events. For 26182/26198 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 12343 event pairs, 147 based on Foata normal form. 23/1942 useless extension candidates. Maximal degree in co-relation 10445. Up to 865 conditions per place. [2024-11-10 18:24:03,399 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 87 selfloop transitions, 71 changer transitions 70/231 dead transitions. [2024-11-10 18:24:03,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 231 transitions, 4128 flow [2024-11-10 18:24:03,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:24:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 18:24:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 143 transitions. [2024-11-10 18:24:03,400 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-10 18:24:03,400 INFO L175 Difference]: Start difference. First operand has 165 places, 165 transitions, 2825 flow. Second operand 13 states and 143 transitions. [2024-11-10 18:24:03,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 231 transitions, 4128 flow [2024-11-10 18:24:03,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 231 transitions, 3934 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-10 18:24:03,457 INFO L231 Difference]: Finished difference. Result has 165 places, 149 transitions, 2472 flow [2024-11-10 18:24:03,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2665, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2472, PETRI_PLACES=165, PETRI_TRANSITIONS=149} [2024-11-10 18:24:03,457 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 137 predicate places. [2024-11-10 18:24:03,458 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 149 transitions, 2472 flow [2024-11-10 18:24:03,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.5) internal successors, (165), 22 states have internal predecessors, (165), 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 18:24:03,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:03,458 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:03,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-10 18:24:03,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-10 18:24:03,659 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:03,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:03,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2027433564, now seen corresponding path program 11 times [2024-11-10 18:24:03,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:03,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764691133] [2024-11-10 18:24:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:03,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:03,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:03,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764691133] [2024-11-10 18:24:03,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764691133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747533268] [2024-11-10 18:24:03,773 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:24:03,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:03,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:03,776 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:03,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 18:24:03,814 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:03,814 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:03,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:24:03,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:03,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:03,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:24:03,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747533268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:24:03,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:24:03,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-10 18:24:03,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841159892] [2024-11-10 18:24:03,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:24:03,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:24:03,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:03,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:24:03,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:24:03,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:03,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 149 transitions, 2472 flow. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:03,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:03,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:03,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:04,167 INFO L124 PetriNetUnfolderBase]: 956/2007 cut-off events. [2024-11-10 18:24:04,168 INFO L125 PetriNetUnfolderBase]: For 29959/29979 co-relation queries the response was YES. [2024-11-10 18:24:04,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11187 conditions, 2007 events. 956/2007 cut-off events. For 29959/29979 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 13122 event pairs, 220 based on Foata normal form. 9/2011 useless extension candidates. Maximal degree in co-relation 11133. Up to 1031 conditions per place. [2024-11-10 18:24:04,182 INFO L140 encePairwiseOnDemand]: 20/28 looper letters, 143 selfloop transitions, 93 changer transitions 13/252 dead transitions. [2024-11-10 18:24:04,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 252 transitions, 4703 flow [2024-11-10 18:24:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:24:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:24:04,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2024-11-10 18:24:04,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-10 18:24:04,183 INFO L175 Difference]: Start difference. First operand has 165 places, 149 transitions, 2472 flow. Second operand 9 states and 112 transitions. [2024-11-10 18:24:04,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 252 transitions, 4703 flow [2024-11-10 18:24:04,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 252 transitions, 4341 flow, removed 22 selfloop flow, removed 13 redundant places. [2024-11-10 18:24:04,250 INFO L231 Difference]: Finished difference. Result has 156 places, 198 transitions, 3469 flow [2024-11-10 18:24:04,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2252, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3469, PETRI_PLACES=156, PETRI_TRANSITIONS=198} [2024-11-10 18:24:04,251 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 128 predicate places. [2024-11-10 18:24:04,251 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 198 transitions, 3469 flow [2024-11-10 18:24:04,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:04,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:04,251 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:04,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-10 18:24:04,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:04,452 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:04,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:04,452 INFO L85 PathProgramCache]: Analyzing trace with hash 983190238, now seen corresponding path program 12 times [2024-11-10 18:24:04,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:04,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262971616] [2024-11-10 18:24:04,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:04,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:04,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:04,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262971616] [2024-11-10 18:24:04,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262971616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:04,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690492347] [2024-11-10 18:24:04,559 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:24:04,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:04,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:04,561 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:04,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-10 18:24:04,603 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-10 18:24:04,603 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:04,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:04,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:04,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:04,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690492347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:04,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:04,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-10 18:24:04,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724476708] [2024-11-10 18:24:04,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:04,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 18:24:04,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:04,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 18:24:04,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-11-10 18:24:04,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:04,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 198 transitions, 3469 flow. Second operand has 21 states, 21 states have (on average 7.523809523809524) internal successors, (158), 21 states have internal predecessors, (158), 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 18:24:04,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:04,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:04,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:05,787 INFO L124 PetriNetUnfolderBase]: 1344/2825 cut-off events. [2024-11-10 18:24:05,787 INFO L125 PetriNetUnfolderBase]: For 41560/41576 co-relation queries the response was YES. [2024-11-10 18:24:05,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16313 conditions, 2825 events. 1344/2825 cut-off events. For 41560/41576 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 20154 event pairs, 102 based on Foata normal form. 45/2870 useless extension candidates. Maximal degree in co-relation 16259. Up to 710 conditions per place. [2024-11-10 18:24:05,810 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 100 selfloop transitions, 228 changer transitions 52/383 dead transitions. [2024-11-10 18:24:05,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 383 transitions, 7235 flow [2024-11-10 18:24:05,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 18:24:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-10 18:24:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 258 transitions. [2024-11-10 18:24:05,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41883116883116883 [2024-11-10 18:24:05,811 INFO L175 Difference]: Start difference. First operand has 156 places, 198 transitions, 3469 flow. Second operand 22 states and 258 transitions. [2024-11-10 18:24:05,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 383 transitions, 7235 flow [2024-11-10 18:24:05,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 383 transitions, 7096 flow, removed 28 selfloop flow, removed 3 redundant places. [2024-11-10 18:24:05,970 INFO L231 Difference]: Finished difference. Result has 183 places, 283 transitions, 5756 flow [2024-11-10 18:24:05,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=3353, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5756, PETRI_PLACES=183, PETRI_TRANSITIONS=283} [2024-11-10 18:24:05,971 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 155 predicate places. [2024-11-10 18:24:05,971 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 283 transitions, 5756 flow [2024-11-10 18:24:05,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.523809523809524) internal successors, (158), 21 states have internal predecessors, (158), 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 18:24:05,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:05,971 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:05,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:06,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:06,172 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:06,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:06,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1099920416, now seen corresponding path program 13 times [2024-11-10 18:24:06,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:06,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555041063] [2024-11-10 18:24:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:06,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:06,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:06,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555041063] [2024-11-10 18:24:06,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555041063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:06,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678091676] [2024-11-10 18:24:06,282 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:24:06,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:06,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:06,284 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:06,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-10 18:24:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:06,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:06,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:06,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:06,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:06,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678091676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:06,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:06,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-10 18:24:06,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863174068] [2024-11-10 18:24:06,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:06,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 18:24:06,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:06,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 18:24:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-10 18:24:06,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:06,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 283 transitions, 5756 flow. Second operand has 21 states, 21 states have (on average 7.523809523809524) internal successors, (158), 21 states have internal predecessors, (158), 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 18:24:06,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:06,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:06,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:07,443 INFO L124 PetriNetUnfolderBase]: 1230/2598 cut-off events. [2024-11-10 18:24:07,443 INFO L125 PetriNetUnfolderBase]: For 48754/48770 co-relation queries the response was YES. [2024-11-10 18:24:07,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16176 conditions, 2598 events. 1230/2598 cut-off events. For 48754/48770 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 18217 event pairs, 100 based on Foata normal form. 18/2616 useless extension candidates. Maximal degree in co-relation 16113. Up to 710 conditions per place. [2024-11-10 18:24:07,468 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 94 selfloop transitions, 224 changer transitions 16/337 dead transitions. [2024-11-10 18:24:07,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 337 transitions, 6909 flow [2024-11-10 18:24:07,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 18:24:07,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-10 18:24:07,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 249 transitions. [2024-11-10 18:24:07,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4042207792207792 [2024-11-10 18:24:07,469 INFO L175 Difference]: Start difference. First operand has 183 places, 283 transitions, 5756 flow. Second operand 22 states and 249 transitions. [2024-11-10 18:24:07,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 337 transitions, 6909 flow [2024-11-10 18:24:07,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 337 transitions, 6437 flow, removed 145 selfloop flow, removed 9 redundant places. [2024-11-10 18:24:07,620 INFO L231 Difference]: Finished difference. Result has 194 places, 279 transitions, 5678 flow [2024-11-10 18:24:07,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=5300, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5678, PETRI_PLACES=194, PETRI_TRANSITIONS=279} [2024-11-10 18:24:07,620 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 166 predicate places. [2024-11-10 18:24:07,620 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 279 transitions, 5678 flow [2024-11-10 18:24:07,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.523809523809524) internal successors, (158), 21 states have internal predecessors, (158), 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 18:24:07,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:07,621 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:07,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:07,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-10 18:24:07,821 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:07,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash -674923150, now seen corresponding path program 14 times [2024-11-10 18:24:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:07,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946090813] [2024-11-10 18:24:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:07,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:07,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:07,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946090813] [2024-11-10 18:24:07,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946090813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:07,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049289348] [2024-11-10 18:24:07,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:24:07,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:07,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:07,925 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:07,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-10 18:24:07,963 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:07,964 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:07,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:07,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:08,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:08,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049289348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:08,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:08,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-10 18:24:08,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439173415] [2024-11-10 18:24:08,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:08,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 18:24:08,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:08,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 18:24:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-11-10 18:24:08,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:08,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 279 transitions, 5678 flow. Second operand has 24 states, 24 states have (on average 7.5) internal successors, (180), 24 states have internal predecessors, (180), 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 18:24:08,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:08,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:08,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:09,567 INFO L124 PetriNetUnfolderBase]: 1912/3986 cut-off events. [2024-11-10 18:24:09,567 INFO L125 PetriNetUnfolderBase]: For 76740/76756 co-relation queries the response was YES. [2024-11-10 18:24:09,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25643 conditions, 3986 events. 1912/3986 cut-off events. For 76740/76756 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 30140 event pairs, 361 based on Foata normal form. 20/4006 useless extension candidates. Maximal degree in co-relation 25583. Up to 1598 conditions per place. [2024-11-10 18:24:09,605 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 240 selfloop transitions, 263 changer transitions 26/532 dead transitions. [2024-11-10 18:24:09,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 532 transitions, 10936 flow [2024-11-10 18:24:09,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-10 18:24:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-10 18:24:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 386 transitions. [2024-11-10 18:24:09,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39387755102040817 [2024-11-10 18:24:09,607 INFO L175 Difference]: Start difference. First operand has 194 places, 279 transitions, 5678 flow. Second operand 35 states and 386 transitions. [2024-11-10 18:24:09,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 532 transitions, 10936 flow [2024-11-10 18:24:09,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 532 transitions, 10397 flow, removed 4 selfloop flow, removed 17 redundant places. [2024-11-10 18:24:09,904 INFO L231 Difference]: Finished difference. Result has 217 places, 401 transitions, 8839 flow [2024-11-10 18:24:09,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=5347, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8839, PETRI_PLACES=217, PETRI_TRANSITIONS=401} [2024-11-10 18:24:09,905 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 189 predicate places. [2024-11-10 18:24:09,905 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 401 transitions, 8839 flow [2024-11-10 18:24:09,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.5) internal successors, (180), 24 states have internal predecessors, (180), 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 18:24:09,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:09,905 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:09,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-10 18:24:10,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:10,106 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:10,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:10,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1743600156, now seen corresponding path program 15 times [2024-11-10 18:24:10,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:10,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146358459] [2024-11-10 18:24:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:10,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:10,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146358459] [2024-11-10 18:24:10,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146358459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730009068] [2024-11-10 18:24:10,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:24:10,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:10,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:10,222 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:10,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-10 18:24:10,269 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:24:10,269 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:10,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:10,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:10,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:10,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730009068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:10,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:10,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-10 18:24:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084486265] [2024-11-10 18:24:10,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:10,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 18:24:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 18:24:10,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-10 18:24:10,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:10,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 401 transitions, 8839 flow. Second operand has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 24 states have internal predecessors, (179), 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 18:24:10,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:10,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:10,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:12,076 INFO L124 PetriNetUnfolderBase]: 1812/3861 cut-off events. [2024-11-10 18:24:12,076 INFO L125 PetriNetUnfolderBase]: For 81620/81636 co-relation queries the response was YES. [2024-11-10 18:24:12,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25345 conditions, 3861 events. 1812/3861 cut-off events. For 81620/81636 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 29225 event pairs, 409 based on Foata normal form. 37/3898 useless extension candidates. Maximal degree in co-relation 25275. Up to 1985 conditions per place. [2024-11-10 18:24:12,118 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 240 selfloop transitions, 224 changer transitions 18/485 dead transitions. [2024-11-10 18:24:12,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 485 transitions, 10558 flow [2024-11-10 18:24:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-10 18:24:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-10 18:24:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 369 transitions. [2024-11-10 18:24:12,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38760504201680673 [2024-11-10 18:24:12,120 INFO L175 Difference]: Start difference. First operand has 217 places, 401 transitions, 8839 flow. Second operand 34 states and 369 transitions. [2024-11-10 18:24:12,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 485 transitions, 10558 flow [2024-11-10 18:24:12,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 485 transitions, 10110 flow, removed 141 selfloop flow, removed 15 redundant places. [2024-11-10 18:24:12,417 INFO L231 Difference]: Finished difference. Result has 238 places, 390 transitions, 8732 flow [2024-11-10 18:24:12,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7608, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=8732, PETRI_PLACES=238, PETRI_TRANSITIONS=390} [2024-11-10 18:24:12,418 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 210 predicate places. [2024-11-10 18:24:12,418 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 390 transitions, 8732 flow [2024-11-10 18:24:12,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 24 states have internal predecessors, (179), 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 18:24:12,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:12,419 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:12,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:12,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:12,622 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:12,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:12,623 INFO L85 PathProgramCache]: Analyzing trace with hash -93621916, now seen corresponding path program 16 times [2024-11-10 18:24:12,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:12,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938147980] [2024-11-10 18:24:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938147980] [2024-11-10 18:24:12,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938147980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097695463] [2024-11-10 18:24:12,734 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:24:12,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:12,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:12,736 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:12,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-10 18:24:12,793 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:24:12,793 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:12,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:12,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:12,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:13,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097695463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:13,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:13,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-10 18:24:13,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304001263] [2024-11-10 18:24:13,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:13,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 18:24:13,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:13,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 18:24:13,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:24:13,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:13,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 390 transitions, 8732 flow. Second operand has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 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 18:24:13,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:13,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:13,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:14,444 INFO L124 PetriNetUnfolderBase]: 1762/3757 cut-off events. [2024-11-10 18:24:14,444 INFO L125 PetriNetUnfolderBase]: For 75454/75470 co-relation queries the response was YES. [2024-11-10 18:24:14,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24949 conditions, 3757 events. 1762/3757 cut-off events. For 75454/75470 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 28214 event pairs, 91 based on Foata normal form. 37/3794 useless extension candidates. Maximal degree in co-relation 24874. Up to 1139 conditions per place. [2024-11-10 18:24:14,477 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 92 selfloop transitions, 304 changer transitions 51/450 dead transitions. [2024-11-10 18:24:14,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 450 transitions, 10276 flow [2024-11-10 18:24:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 18:24:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-10 18:24:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 250 transitions. [2024-11-10 18:24:14,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37202380952380953 [2024-11-10 18:24:14,479 INFO L175 Difference]: Start difference. First operand has 238 places, 390 transitions, 8732 flow. Second operand 24 states and 250 transitions. [2024-11-10 18:24:14,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 450 transitions, 10276 flow [2024-11-10 18:24:14,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 450 transitions, 10004 flow, removed 52 selfloop flow, removed 15 redundant places. [2024-11-10 18:24:14,804 INFO L231 Difference]: Finished difference. Result has 247 places, 371 transitions, 8897 flow [2024-11-10 18:24:14,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=8160, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=8897, PETRI_PLACES=247, PETRI_TRANSITIONS=371} [2024-11-10 18:24:14,805 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 219 predicate places. [2024-11-10 18:24:14,805 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 371 transitions, 8897 flow [2024-11-10 18:24:14,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 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 18:24:14,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:14,805 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:14,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-10 18:24:15,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:15,006 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:15,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:15,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1721141254, now seen corresponding path program 17 times [2024-11-10 18:24:15,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:15,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271158018] [2024-11-10 18:24:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:15,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:15,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:15,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271158018] [2024-11-10 18:24:15,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271158018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:15,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893343927] [2024-11-10 18:24:15,219 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:24:15,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:15,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:15,222 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:15,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-10 18:24:15,271 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:15,271 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:15,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:24:15,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:15,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:24:15,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893343927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:24:15,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:24:15,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-10 18:24:15,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488931698] [2024-11-10 18:24:15,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:24:15,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:24:15,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:15,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:24:15,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:24:15,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:15,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 371 transitions, 8897 flow. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:15,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:15,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:15,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:16,089 INFO L124 PetriNetUnfolderBase]: 1675/3571 cut-off events. [2024-11-10 18:24:16,089 INFO L125 PetriNetUnfolderBase]: For 82894/82910 co-relation queries the response was YES. [2024-11-10 18:24:16,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24922 conditions, 3571 events. 1675/3571 cut-off events. For 82894/82910 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 26558 event pairs, 94 based on Foata normal form. 21/3587 useless extension candidates. Maximal degree in co-relation 24842. Up to 861 conditions per place. [2024-11-10 18:24:16,126 INFO L140 encePairwiseOnDemand]: 20/28 looper letters, 150 selfloop transitions, 150 changer transitions 104/407 dead transitions. [2024-11-10 18:24:16,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 407 transitions, 10342 flow [2024-11-10 18:24:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:24:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:24:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 104 transitions. [2024-11-10 18:24:16,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4126984126984127 [2024-11-10 18:24:16,127 INFO L175 Difference]: Start difference. First operand has 247 places, 371 transitions, 8897 flow. Second operand 9 states and 104 transitions. [2024-11-10 18:24:16,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 407 transitions, 10342 flow [2024-11-10 18:24:16,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 407 transitions, 9663 flow, removed 64 selfloop flow, removed 13 redundant places. [2024-11-10 18:24:16,557 INFO L231 Difference]: Finished difference. Result has 237 places, 292 transitions, 6887 flow [2024-11-10 18:24:16,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=8244, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6887, PETRI_PLACES=237, PETRI_TRANSITIONS=292} [2024-11-10 18:24:16,557 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 209 predicate places. [2024-11-10 18:24:16,557 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 292 transitions, 6887 flow [2024-11-10 18:24:16,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:16,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:16,558 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:16,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:16,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-10 18:24:16,758 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:16,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1073848434, now seen corresponding path program 18 times [2024-11-10 18:24:16,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:16,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263532462] [2024-11-10 18:24:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:16,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:16,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263532462] [2024-11-10 18:24:16,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263532462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:16,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539407628] [2024-11-10 18:24:16,949 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:24:16,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:16,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:16,951 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:16,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-10 18:24:16,998 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-10 18:24:16,999 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:16,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:17,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:17,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:17,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539407628] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:17,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:17,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2024-11-10 18:24:17,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477823177] [2024-11-10 18:24:17,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:17,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 18:24:17,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:17,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 18:24:17,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:24:17,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:17,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 292 transitions, 6887 flow. Second operand has 20 states, 20 states have (on average 7.65) internal successors, (153), 20 states have internal predecessors, (153), 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 18:24:17,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:17,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:17,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:18,010 INFO L124 PetriNetUnfolderBase]: 1166/2549 cut-off events. [2024-11-10 18:24:18,010 INFO L125 PetriNetUnfolderBase]: For 53841/53849 co-relation queries the response was YES. [2024-11-10 18:24:18,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18130 conditions, 2549 events. 1166/2549 cut-off events. For 53841/53849 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18615 event pairs, 164 based on Foata normal form. 29/2573 useless extension candidates. Maximal degree in co-relation 18056. Up to 1362 conditions per place. [2024-11-10 18:24:18,033 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 193 selfloop transitions, 179 changer transitions 29/404 dead transitions. [2024-11-10 18:24:18,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 404 transitions, 9942 flow [2024-11-10 18:24:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 18:24:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-10 18:24:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 212 transitions. [2024-11-10 18:24:18,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39849624060150374 [2024-11-10 18:24:18,034 INFO L175 Difference]: Start difference. First operand has 237 places, 292 transitions, 6887 flow. Second operand 19 states and 212 transitions. [2024-11-10 18:24:18,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 404 transitions, 9942 flow [2024-11-10 18:24:18,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 404 transitions, 8932 flow, removed 40 selfloop flow, removed 27 redundant places. [2024-11-10 18:24:18,189 INFO L231 Difference]: Finished difference. Result has 219 places, 338 transitions, 7843 flow [2024-11-10 18:24:18,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=6117, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7843, PETRI_PLACES=219, PETRI_TRANSITIONS=338} [2024-11-10 18:24:18,190 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 191 predicate places. [2024-11-10 18:24:18,190 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 338 transitions, 7843 flow [2024-11-10 18:24:18,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.65) internal successors, (153), 20 states have internal predecessors, (153), 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 18:24:18,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:18,190 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:18,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-10 18:24:18,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-10 18:24:18,391 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:18,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:18,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2111351858, now seen corresponding path program 19 times [2024-11-10 18:24:18,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:18,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116549431] [2024-11-10 18:24:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:18,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:18,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:18,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116549431] [2024-11-10 18:24:18,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116549431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:18,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267351448] [2024-11-10 18:24:18,495 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:24:18,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:18,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:18,497 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:18,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-10 18:24:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:18,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:18,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:18,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:18,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267351448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:18,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:18,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-10 18:24:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785929580] [2024-11-10 18:24:18,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:18,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:18,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:18,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:18,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:18,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 338 transitions, 7843 flow. Second operand has 22 states, 22 states have (on average 7.454545454545454) internal successors, (164), 22 states have internal predecessors, (164), 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 18:24:18,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:18,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:18,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:19,638 INFO L124 PetriNetUnfolderBase]: 1249/2730 cut-off events. [2024-11-10 18:24:19,638 INFO L125 PetriNetUnfolderBase]: For 53659/53667 co-relation queries the response was YES. [2024-11-10 18:24:19,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18730 conditions, 2730 events. 1249/2730 cut-off events. For 53659/53667 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 20289 event pairs, 211 based on Foata normal form. 14/2739 useless extension candidates. Maximal degree in co-relation 18659. Up to 1350 conditions per place. [2024-11-10 18:24:19,672 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 204 selfloop transitions, 166 changer transitions 49/422 dead transitions. [2024-11-10 18:24:19,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 422 transitions, 10283 flow [2024-11-10 18:24:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:24:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 18:24:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 162 transitions. [2024-11-10 18:24:19,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.413265306122449 [2024-11-10 18:24:19,674 INFO L175 Difference]: Start difference. First operand has 219 places, 338 transitions, 7843 flow. Second operand 14 states and 162 transitions. [2024-11-10 18:24:19,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 422 transitions, 10283 flow [2024-11-10 18:24:19,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 422 transitions, 10042 flow, removed 118 selfloop flow, removed 4 redundant places. [2024-11-10 18:24:19,936 INFO L231 Difference]: Finished difference. Result has 230 places, 335 transitions, 8090 flow [2024-11-10 18:24:19,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7618, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8090, PETRI_PLACES=230, PETRI_TRANSITIONS=335} [2024-11-10 18:24:19,937 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 202 predicate places. [2024-11-10 18:24:19,937 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 335 transitions, 8090 flow [2024-11-10 18:24:19,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.454545454545454) internal successors, (164), 22 states have internal predecessors, (164), 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 18:24:19,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:19,937 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:19,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:20,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-10 18:24:20,138 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:20,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash -359463754, now seen corresponding path program 20 times [2024-11-10 18:24:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644612578] [2024-11-10 18:24:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:20,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:20,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644612578] [2024-11-10 18:24:20,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644612578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560850151] [2024-11-10 18:24:20,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:24:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:20,263 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:20,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-10 18:24:20,303 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:20,303 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:20,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:20,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:20,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560850151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:20,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-10 18:24:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995466271] [2024-11-10 18:24:20,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:20,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:20,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:20,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 335 transitions, 8090 flow. Second operand has 22 states, 22 states have (on average 7.5) internal successors, (165), 22 states have internal predecessors, (165), 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 18:24:20,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:20,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:20,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:21,368 INFO L124 PetriNetUnfolderBase]: 1126/2484 cut-off events. [2024-11-10 18:24:21,368 INFO L125 PetriNetUnfolderBase]: For 48772/48780 co-relation queries the response was YES. [2024-11-10 18:24:21,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16985 conditions, 2484 events. 1126/2484 cut-off events. For 48772/48780 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 18205 event pairs, 210 based on Foata normal form. 10/2489 useless extension candidates. Maximal degree in co-relation 16911. Up to 1352 conditions per place. [2024-11-10 18:24:21,406 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 200 selfloop transitions, 165 changer transitions 21/389 dead transitions. [2024-11-10 18:24:21,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 389 transitions, 9527 flow [2024-11-10 18:24:21,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 18:24:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 18:24:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 180 transitions. [2024-11-10 18:24:21,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2024-11-10 18:24:21,408 INFO L175 Difference]: Start difference. First operand has 230 places, 335 transitions, 8090 flow. Second operand 16 states and 180 transitions. [2024-11-10 18:24:21,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 389 transitions, 9527 flow [2024-11-10 18:24:21,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 389 transitions, 9349 flow, removed 23 selfloop flow, removed 11 redundant places. [2024-11-10 18:24:21,624 INFO L231 Difference]: Finished difference. Result has 234 places, 330 transitions, 8184 flow [2024-11-10 18:24:21,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7920, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8184, PETRI_PLACES=234, PETRI_TRANSITIONS=330} [2024-11-10 18:24:21,625 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 206 predicate places. [2024-11-10 18:24:21,625 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 330 transitions, 8184 flow [2024-11-10 18:24:21,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.5) internal successors, (165), 22 states have internal predecessors, (165), 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 18:24:21,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:21,626 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:21,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:21,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:21,826 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:21,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:21,827 INFO L85 PathProgramCache]: Analyzing trace with hash -23911758, now seen corresponding path program 21 times [2024-11-10 18:24:21,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:21,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562103068] [2024-11-10 18:24:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:21,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:21,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562103068] [2024-11-10 18:24:21,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562103068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:21,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016298207] [2024-11-10 18:24:21,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:24:21,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:21,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:21,956 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:21,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-10 18:24:22,005 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:24:22,005 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:22,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:22,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:22,134 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:22,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:22,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016298207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:22,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:22,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-10 18:24:22,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096376945] [2024-11-10 18:24:22,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:22,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:22,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:22,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:22,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:22,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:22,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 330 transitions, 8184 flow. Second operand has 22 states, 22 states have (on average 7.5) internal successors, (165), 22 states have internal predecessors, (165), 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 18:24:22,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:22,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:22,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:23,115 INFO L124 PetriNetUnfolderBase]: 1078/2382 cut-off events. [2024-11-10 18:24:23,115 INFO L125 PetriNetUnfolderBase]: For 48533/48541 co-relation queries the response was YES. [2024-11-10 18:24:23,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16639 conditions, 2382 events. 1078/2382 cut-off events. For 48533/48541 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 17309 event pairs, 215 based on Foata normal form. 10/2387 useless extension candidates. Maximal degree in co-relation 16568. Up to 1429 conditions per place. [2024-11-10 18:24:23,136 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 183 selfloop transitions, 153 changer transitions 23/362 dead transitions. [2024-11-10 18:24:23,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 362 transitions, 9234 flow [2024-11-10 18:24:23,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:24:23,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 18:24:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 158 transitions. [2024-11-10 18:24:23,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3761904761904762 [2024-11-10 18:24:23,138 INFO L175 Difference]: Start difference. First operand has 234 places, 330 transitions, 8184 flow. Second operand 15 states and 158 transitions. [2024-11-10 18:24:23,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 362 transitions, 9234 flow [2024-11-10 18:24:23,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 362 transitions, 8761 flow, removed 32 selfloop flow, removed 15 redundant places. [2024-11-10 18:24:23,309 INFO L231 Difference]: Finished difference. Result has 234 places, 324 transitions, 7886 flow [2024-11-10 18:24:23,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7711, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7886, PETRI_PLACES=234, PETRI_TRANSITIONS=324} [2024-11-10 18:24:23,310 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 206 predicate places. [2024-11-10 18:24:23,310 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 324 transitions, 7886 flow [2024-11-10 18:24:23,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.5) internal successors, (165), 22 states have internal predecessors, (165), 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 18:24:23,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:23,311 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:23,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-10 18:24:23,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:23,512 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:23,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1328646572, now seen corresponding path program 22 times [2024-11-10 18:24:23,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:23,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760054277] [2024-11-10 18:24:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:23,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:23,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:23,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:23,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760054277] [2024-11-10 18:24:23,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760054277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:23,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941355457] [2024-11-10 18:24:23,608 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:24:23,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:23,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:23,610 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:23,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-10 18:24:23,647 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:24:23,647 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:23,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:23,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:23,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:23,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:23,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941355457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:23,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:23,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-10 18:24:23,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861341081] [2024-11-10 18:24:23,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:23,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 18:24:23,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:23,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 18:24:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-10 18:24:23,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:23,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 324 transitions, 7886 flow. Second operand has 21 states, 21 states have (on average 7.476190476190476) internal successors, (157), 21 states have internal predecessors, (157), 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 18:24:23,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:23,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:23,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:24,930 INFO L124 PetriNetUnfolderBase]: 1311/2880 cut-off events. [2024-11-10 18:24:24,930 INFO L125 PetriNetUnfolderBase]: For 59835/59843 co-relation queries the response was YES. [2024-11-10 18:24:24,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20714 conditions, 2880 events. 1311/2880 cut-off events. For 59835/59843 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 21614 event pairs, 122 based on Foata normal form. 16/2895 useless extension candidates. Maximal degree in co-relation 20643. Up to 1026 conditions per place. [2024-11-10 18:24:24,963 INFO L140 encePairwiseOnDemand]: 17/28 looper letters, 147 selfloop transitions, 274 changer transitions 80/504 dead transitions. [2024-11-10 18:24:24,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 504 transitions, 12792 flow [2024-11-10 18:24:24,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-10 18:24:24,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-10 18:24:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 274 transitions. [2024-11-10 18:24:24,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3914285714285714 [2024-11-10 18:24:24,965 INFO L175 Difference]: Start difference. First operand has 234 places, 324 transitions, 7886 flow. Second operand 25 states and 274 transitions. [2024-11-10 18:24:24,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 504 transitions, 12792 flow [2024-11-10 18:24:25,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 504 transitions, 12344 flow, removed 22 selfloop flow, removed 9 redundant places. [2024-11-10 18:24:25,239 INFO L231 Difference]: Finished difference. Result has 253 places, 385 transitions, 10197 flow [2024-11-10 18:24:25,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7560, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=10197, PETRI_PLACES=253, PETRI_TRANSITIONS=385} [2024-11-10 18:24:25,240 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 225 predicate places. [2024-11-10 18:24:25,240 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 385 transitions, 10197 flow [2024-11-10 18:24:25,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.476190476190476) internal successors, (157), 21 states have internal predecessors, (157), 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 18:24:25,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:25,241 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:25,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:25,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-10 18:24:25,441 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:25,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1545032064, now seen corresponding path program 23 times [2024-11-10 18:24:25,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:25,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358388130] [2024-11-10 18:24:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:25,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:25,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:25,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358388130] [2024-11-10 18:24:25,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358388130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:25,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207394340] [2024-11-10 18:24:25,541 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:24:25,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:25,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:25,543 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:25,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-10 18:24:25,579 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-10 18:24:25,580 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:25,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:24:25,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:25,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:25,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207394340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:25,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:25,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2024-11-10 18:24:25,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146549520] [2024-11-10 18:24:25,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:25,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 18:24:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:25,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 18:24:25,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:24:25,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:25,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 385 transitions, 10197 flow. Second operand has 20 states, 20 states have (on average 7.65) internal successors, (153), 20 states have internal predecessors, (153), 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 18:24:25,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:25,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:25,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:26,516 INFO L124 PetriNetUnfolderBase]: 1182/2610 cut-off events. [2024-11-10 18:24:26,517 INFO L125 PetriNetUnfolderBase]: For 66996/67004 co-relation queries the response was YES. [2024-11-10 18:24:26,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19917 conditions, 2610 events. 1182/2610 cut-off events. For 66996/67004 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 19037 event pairs, 94 based on Foata normal form. 26/2635 useless extension candidates. Maximal degree in co-relation 19837. Up to 867 conditions per place. [2024-11-10 18:24:26,538 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 179 selfloop transitions, 162 changer transitions 100/444 dead transitions. [2024-11-10 18:24:26,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 444 transitions, 12103 flow [2024-11-10 18:24:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 18:24:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 18:24:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 215 transitions. [2024-11-10 18:24:26,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38392857142857145 [2024-11-10 18:24:26,540 INFO L175 Difference]: Start difference. First operand has 253 places, 385 transitions, 10197 flow. Second operand 20 states and 215 transitions. [2024-11-10 18:24:26,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 444 transitions, 12103 flow [2024-11-10 18:24:26,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 444 transitions, 11689 flow, removed 144 selfloop flow, removed 6 redundant places. [2024-11-10 18:24:26,831 INFO L231 Difference]: Finished difference. Result has 261 places, 317 transitions, 8267 flow [2024-11-10 18:24:26,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=9790, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8267, PETRI_PLACES=261, PETRI_TRANSITIONS=317} [2024-11-10 18:24:26,832 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 233 predicate places. [2024-11-10 18:24:26,832 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 317 transitions, 8267 flow [2024-11-10 18:24:26,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.65) internal successors, (153), 20 states have internal predecessors, (153), 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 18:24:26,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:26,832 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:26,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:27,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-10 18:24:27,033 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:27,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 285334416, now seen corresponding path program 24 times [2024-11-10 18:24:27,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:27,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789629458] [2024-11-10 18:24:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:27,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:27,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789629458] [2024-11-10 18:24:27,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789629458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276192101] [2024-11-10 18:24:27,139 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:24:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:27,141 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:27,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-10 18:24:27,184 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-10 18:24:27,185 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:27,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:27,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:27,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:27,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276192101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:27,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:27,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402983202] [2024-11-10 18:24:27,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:27,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:27,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:27,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:27,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:27,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:27,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 317 transitions, 8267 flow. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:27,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:27,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:27,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:28,045 INFO L124 PetriNetUnfolderBase]: 957/2209 cut-off events. [2024-11-10 18:24:28,045 INFO L125 PetriNetUnfolderBase]: For 58977/58979 co-relation queries the response was YES. [2024-11-10 18:24:28,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16062 conditions, 2209 events. 957/2209 cut-off events. For 58977/58979 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 16070 event pairs, 181 based on Foata normal form. 2/2206 useless extension candidates. Maximal degree in co-relation 15979. Up to 1057 conditions per place. [2024-11-10 18:24:28,069 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 250 selfloop transitions, 96 changer transitions 13/362 dead transitions. [2024-11-10 18:24:28,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 362 transitions, 9624 flow [2024-11-10 18:24:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:24:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:24:28,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 135 transitions. [2024-11-10 18:24:28,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2024-11-10 18:24:28,070 INFO L175 Difference]: Start difference. First operand has 261 places, 317 transitions, 8267 flow. Second operand 12 states and 135 transitions. [2024-11-10 18:24:28,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 362 transitions, 9624 flow [2024-11-10 18:24:28,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 362 transitions, 8332 flow, removed 121 selfloop flow, removed 28 redundant places. [2024-11-10 18:24:28,272 INFO L231 Difference]: Finished difference. Result has 227 places, 327 transitions, 7490 flow [2024-11-10 18:24:28,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7051, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7490, PETRI_PLACES=227, PETRI_TRANSITIONS=327} [2024-11-10 18:24:28,273 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 199 predicate places. [2024-11-10 18:24:28,273 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 327 transitions, 7490 flow [2024-11-10 18:24:28,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:28,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:28,274 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:28,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-10 18:24:28,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:28,475 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:28,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:28,475 INFO L85 PathProgramCache]: Analyzing trace with hash -272505958, now seen corresponding path program 25 times [2024-11-10 18:24:28,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:28,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032926658] [2024-11-10 18:24:28,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:28,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:28,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032926658] [2024-11-10 18:24:28,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032926658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467091906] [2024-11-10 18:24:28,593 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:24:28,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:28,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:28,596 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:28,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-10 18:24:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:28,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:28,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:28,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:28,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467091906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:28,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:28,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437605030] [2024-11-10 18:24:28,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:28,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:28,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:28,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 327 transitions, 7490 flow. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:28,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:28,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:28,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:29,458 INFO L124 PetriNetUnfolderBase]: 903/2041 cut-off events. [2024-11-10 18:24:29,459 INFO L125 PetriNetUnfolderBase]: For 44561/44563 co-relation queries the response was YES. [2024-11-10 18:24:29,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14119 conditions, 2041 events. 903/2041 cut-off events. For 44561/44563 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 14444 event pairs, 147 based on Foata normal form. 2/2038 useless extension candidates. Maximal degree in co-relation 14046. Up to 955 conditions per place. [2024-11-10 18:24:29,481 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 249 selfloop transitions, 90 changer transitions 15/357 dead transitions. [2024-11-10 18:24:29,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 357 transitions, 8473 flow [2024-11-10 18:24:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:24:29,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:24:29,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 132 transitions. [2024-11-10 18:24:29,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-10 18:24:29,482 INFO L175 Difference]: Start difference. First operand has 227 places, 327 transitions, 7490 flow. Second operand 12 states and 132 transitions. [2024-11-10 18:24:29,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 357 transitions, 8473 flow [2024-11-10 18:24:29,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 357 transitions, 8391 flow, removed 22 selfloop flow, removed 7 redundant places. [2024-11-10 18:24:29,637 INFO L231 Difference]: Finished difference. Result has 232 places, 323 transitions, 7514 flow [2024-11-10 18:24:29,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7416, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7514, PETRI_PLACES=232, PETRI_TRANSITIONS=323} [2024-11-10 18:24:29,637 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 204 predicate places. [2024-11-10 18:24:29,637 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 323 transitions, 7514 flow [2024-11-10 18:24:29,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:29,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:29,638 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:29,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-10 18:24:29,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:29,838 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:29,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1111492850, now seen corresponding path program 26 times [2024-11-10 18:24:29,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:29,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146974174] [2024-11-10 18:24:29,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:29,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:29,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:29,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146974174] [2024-11-10 18:24:29,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146974174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679100037] [2024-11-10 18:24:29,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:24:29,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:29,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:29,953 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:29,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-10 18:24:29,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:29,993 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:29,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:29,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:30,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:30,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:30,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679100037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:30,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895608217] [2024-11-10 18:24:30,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:30,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:30,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:30,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:30,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:30,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 323 transitions, 7514 flow. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 18:24:30,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:30,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:30,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:30,783 INFO L124 PetriNetUnfolderBase]: 873/1969 cut-off events. [2024-11-10 18:24:30,783 INFO L125 PetriNetUnfolderBase]: For 44541/44543 co-relation queries the response was YES. [2024-11-10 18:24:30,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 1969 events. 873/1969 cut-off events. For 44541/44543 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13726 event pairs, 147 based on Foata normal form. 2/1966 useless extension candidates. Maximal degree in co-relation 13825. Up to 955 conditions per place. [2024-11-10 18:24:30,801 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 238 selfloop transitions, 84 changer transitions 22/347 dead transitions. [2024-11-10 18:24:30,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 347 transitions, 8432 flow [2024-11-10 18:24:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:24:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:24:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 126 transitions. [2024-11-10 18:24:30,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-10 18:24:30,803 INFO L175 Difference]: Start difference. First operand has 232 places, 323 transitions, 7514 flow. Second operand 12 states and 126 transitions. [2024-11-10 18:24:30,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 347 transitions, 8432 flow [2024-11-10 18:24:30,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 347 transitions, 8234 flow, removed 7 selfloop flow, removed 11 redundant places. [2024-11-10 18:24:30,937 INFO L231 Difference]: Finished difference. Result has 231 places, 315 transitions, 7329 flow [2024-11-10 18:24:30,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=7316, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7329, PETRI_PLACES=231, PETRI_TRANSITIONS=315} [2024-11-10 18:24:30,938 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 203 predicate places. [2024-11-10 18:24:30,938 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 315 transitions, 7329 flow [2024-11-10 18:24:30,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 18:24:30,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:30,939 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:30,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-10 18:24:31,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:31,139 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:31,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:31,140 INFO L85 PathProgramCache]: Analyzing trace with hash -295004520, now seen corresponding path program 27 times [2024-11-10 18:24:31,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:31,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709028667] [2024-11-10 18:24:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:31,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:31,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:31,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709028667] [2024-11-10 18:24:31,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709028667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:31,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163461452] [2024-11-10 18:24:31,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:24:31,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:31,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:31,251 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:31,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-10 18:24:31,287 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:24:31,287 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:31,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:31,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:31,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:31,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163461452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:31,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:31,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:31,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813522524] [2024-11-10 18:24:31,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:31,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:31,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:31,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:31,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 315 transitions, 7329 flow. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 18:24:31,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:31,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:31,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:32,092 INFO L124 PetriNetUnfolderBase]: 876/1984 cut-off events. [2024-11-10 18:24:32,092 INFO L125 PetriNetUnfolderBase]: For 43477/43479 co-relation queries the response was YES. [2024-11-10 18:24:32,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13739 conditions, 1984 events. 876/1984 cut-off events. For 43477/43479 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13809 event pairs, 111 based on Foata normal form. 4/1983 useless extension candidates. Maximal degree in co-relation 13667. Up to 789 conditions per place. [2024-11-10 18:24:32,113 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 189 selfloop transitions, 131 changer transitions 31/354 dead transitions. [2024-11-10 18:24:32,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 354 transitions, 8392 flow [2024-11-10 18:24:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:24:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 18:24:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 144 transitions. [2024-11-10 18:24:32,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3956043956043956 [2024-11-10 18:24:32,114 INFO L175 Difference]: Start difference. First operand has 231 places, 315 transitions, 7329 flow. Second operand 13 states and 144 transitions. [2024-11-10 18:24:32,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 354 transitions, 8392 flow [2024-11-10 18:24:32,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 354 transitions, 8024 flow, removed 29 selfloop flow, removed 12 redundant places. [2024-11-10 18:24:32,252 INFO L231 Difference]: Finished difference. Result has 226 places, 298 transitions, 6964 flow [2024-11-10 18:24:32,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=6973, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6964, PETRI_PLACES=226, PETRI_TRANSITIONS=298} [2024-11-10 18:24:32,253 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 198 predicate places. [2024-11-10 18:24:32,253 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 298 transitions, 6964 flow [2024-11-10 18:24:32,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 18:24:32,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:32,253 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:32,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:32,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-10 18:24:32,454 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:32,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:32,454 INFO L85 PathProgramCache]: Analyzing trace with hash -556339366, now seen corresponding path program 28 times [2024-11-10 18:24:32,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:32,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768502143] [2024-11-10 18:24:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:32,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:32,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:32,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768502143] [2024-11-10 18:24:32,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768502143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:32,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95915862] [2024-11-10 18:24:32,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:24:32,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:32,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:32,540 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:32,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-10 18:24:32,577 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:24:32,577 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:32,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:32,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:32,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:32,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95915862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:32,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:32,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:32,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391290548] [2024-11-10 18:24:32,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:32,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:32,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:32,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:32,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:32,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:32,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 298 transitions, 6964 flow. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:32,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:32,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:32,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:33,320 INFO L124 PetriNetUnfolderBase]: 825/1892 cut-off events. [2024-11-10 18:24:33,320 INFO L125 PetriNetUnfolderBase]: For 39724/39726 co-relation queries the response was YES. [2024-11-10 18:24:33,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12914 conditions, 1892 events. 825/1892 cut-off events. For 39724/39726 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 13119 event pairs, 58 based on Foata normal form. 3/1892 useless extension candidates. Maximal degree in co-relation 12843. Up to 446 conditions per place. [2024-11-10 18:24:33,340 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 186 selfloop transitions, 125 changer transitions 23/337 dead transitions. [2024-11-10 18:24:33,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 337 transitions, 7925 flow [2024-11-10 18:24:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:24:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 18:24:33,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 153 transitions. [2024-11-10 18:24:33,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3903061224489796 [2024-11-10 18:24:33,341 INFO L175 Difference]: Start difference. First operand has 226 places, 298 transitions, 6964 flow. Second operand 14 states and 153 transitions. [2024-11-10 18:24:33,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 337 transitions, 7925 flow [2024-11-10 18:24:33,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 337 transitions, 7613 flow, removed 18 selfloop flow, removed 11 redundant places. [2024-11-10 18:24:33,514 INFO L231 Difference]: Finished difference. Result has 229 places, 284 transitions, 6588 flow [2024-11-10 18:24:33,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=6654, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6588, PETRI_PLACES=229, PETRI_TRANSITIONS=284} [2024-11-10 18:24:33,515 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 201 predicate places. [2024-11-10 18:24:33,515 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 284 transitions, 6588 flow [2024-11-10 18:24:33,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:33,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:33,516 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:33,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-10 18:24:33,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-10 18:24:33,716 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:33,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 827659442, now seen corresponding path program 29 times [2024-11-10 18:24:33,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:33,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411789189] [2024-11-10 18:24:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:33,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:33,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411789189] [2024-11-10 18:24:33,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411789189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837477784] [2024-11-10 18:24:33,820 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:24:33,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:33,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:33,822 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:33,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-10 18:24:33,866 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:33,866 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:33,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:24:33,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:33,973 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:24:33,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837477784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:24:33,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:24:33,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-10 18:24:33,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986499889] [2024-11-10 18:24:33,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:24:33,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:24:33,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:33,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:24:33,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:24:33,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:33,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 284 transitions, 6588 flow. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:33,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:33,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:33,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:34,418 INFO L124 PetriNetUnfolderBase]: 746/1714 cut-off events. [2024-11-10 18:24:34,419 INFO L125 PetriNetUnfolderBase]: For 39632/39634 co-relation queries the response was YES. [2024-11-10 18:24:34,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11836 conditions, 1714 events. 746/1714 cut-off events. For 39632/39634 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11699 event pairs, 107 based on Foata normal form. 9/1720 useless extension candidates. Maximal degree in co-relation 11769. Up to 508 conditions per place. [2024-11-10 18:24:34,438 INFO L140 encePairwiseOnDemand]: 20/28 looper letters, 85 selfloop transitions, 39 changer transitions 178/305 dead transitions. [2024-11-10 18:24:34,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 305 transitions, 7383 flow [2024-11-10 18:24:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:24:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:24:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 102 transitions. [2024-11-10 18:24:34,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2024-11-10 18:24:34,439 INFO L175 Difference]: Start difference. First operand has 229 places, 284 transitions, 6588 flow. Second operand 9 states and 102 transitions. [2024-11-10 18:24:34,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 305 transitions, 7383 flow [2024-11-10 18:24:34,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 305 transitions, 7037 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-11-10 18:24:34,555 INFO L231 Difference]: Finished difference. Result has 223 places, 121 transitions, 2389 flow [2024-11-10 18:24:34,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=6242, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2389, PETRI_PLACES=223, PETRI_TRANSITIONS=121} [2024-11-10 18:24:34,556 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 195 predicate places. [2024-11-10 18:24:34,556 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 121 transitions, 2389 flow [2024-11-10 18:24:34,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:24:34,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:34,556 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:34,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-10 18:24:34,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-10 18:24:34,757 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:34,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1977372236, now seen corresponding path program 30 times [2024-11-10 18:24:34,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:34,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329411752] [2024-11-10 18:24:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:34,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:34,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329411752] [2024-11-10 18:24:34,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329411752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:34,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113248808] [2024-11-10 18:24:34,854 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:24:34,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:34,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:34,856 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:34,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-10 18:24:34,900 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-10 18:24:34,900 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:34,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:24:34,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:35,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:35,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113248808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:35,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:35,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-11-10 18:24:35,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582042392] [2024-11-10 18:24:35,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:35,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 18:24:35,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:35,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 18:24:35,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-10 18:24:35,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:35,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 121 transitions, 2389 flow. Second operand has 22 states, 22 states have (on average 7.590909090909091) internal successors, (167), 22 states have internal predecessors, (167), 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 18:24:35,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:35,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:35,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:36,142 INFO L124 PetriNetUnfolderBase]: 433/1073 cut-off events. [2024-11-10 18:24:36,142 INFO L125 PetriNetUnfolderBase]: For 17363/17365 co-relation queries the response was YES. [2024-11-10 18:24:36,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6061 conditions, 1073 events. 433/1073 cut-off events. For 17363/17365 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6617 event pairs, 65 based on Foata normal form. 8/1078 useless extension candidates. Maximal degree in co-relation 5996. Up to 454 conditions per place. [2024-11-10 18:24:36,151 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 110 selfloop transitions, 95 changer transitions 19/227 dead transitions. [2024-11-10 18:24:36,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 227 transitions, 4145 flow [2024-11-10 18:24:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-10 18:24:36,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-10 18:24:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 355 transitions. [2024-11-10 18:24:36,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3521825396825397 [2024-11-10 18:24:36,153 INFO L175 Difference]: Start difference. First operand has 223 places, 121 transitions, 2389 flow. Second operand 36 states and 355 transitions. [2024-11-10 18:24:36,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 227 transitions, 4145 flow [2024-11-10 18:24:36,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 227 transitions, 3139 flow, removed 110 selfloop flow, removed 44 redundant places. [2024-11-10 18:24:36,189 INFO L231 Difference]: Finished difference. Result has 200 places, 154 transitions, 2531 flow [2024-11-10 18:24:36,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1739, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2531, PETRI_PLACES=200, PETRI_TRANSITIONS=154} [2024-11-10 18:24:36,190 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 172 predicate places. [2024-11-10 18:24:36,190 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 154 transitions, 2531 flow [2024-11-10 18:24:36,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.590909090909091) internal successors, (167), 22 states have internal predecessors, (167), 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 18:24:36,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:36,190 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:36,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:36,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2024-11-10 18:24:36,391 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:36,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1943773008, now seen corresponding path program 31 times [2024-11-10 18:24:36,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:36,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779422492] [2024-11-10 18:24:36,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:36,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:36,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:36,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779422492] [2024-11-10 18:24:36,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779422492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:36,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097007447] [2024-11-10 18:24:36,469 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:24:36,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:36,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:36,470 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:36,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-10 18:24:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:36,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:36,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:36,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:36,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097007447] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:36,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:36,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:36,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92101326] [2024-11-10 18:24:36,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:36,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:36,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:36,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:36,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:36,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:36,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 154 transitions, 2531 flow. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:36,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:36,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:36,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:37,056 INFO L124 PetriNetUnfolderBase]: 388/953 cut-off events. [2024-11-10 18:24:37,056 INFO L125 PetriNetUnfolderBase]: For 9192/9196 co-relation queries the response was YES. [2024-11-10 18:24:37,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4774 conditions, 953 events. 388/953 cut-off events. For 9192/9196 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5655 event pairs, 81 based on Foata normal form. 2/954 useless extension candidates. Maximal degree in co-relation 4724. Up to 495 conditions per place. [2024-11-10 18:24:37,062 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 81 selfloop transitions, 69 changer transitions 21/174 dead transitions. [2024-11-10 18:24:37,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 174 transitions, 2961 flow [2024-11-10 18:24:37,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:24:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:24:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 127 transitions. [2024-11-10 18:24:37,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37797619047619047 [2024-11-10 18:24:37,063 INFO L175 Difference]: Start difference. First operand has 200 places, 154 transitions, 2531 flow. Second operand 12 states and 127 transitions. [2024-11-10 18:24:37,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 174 transitions, 2961 flow [2024-11-10 18:24:37,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 174 transitions, 2822 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-11-10 18:24:37,086 INFO L231 Difference]: Finished difference. Result has 196 places, 142 transitions, 2339 flow [2024-11-10 18:24:37,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2392, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2339, PETRI_PLACES=196, PETRI_TRANSITIONS=142} [2024-11-10 18:24:37,087 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 168 predicate places. [2024-11-10 18:24:37,087 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 142 transitions, 2339 flow [2024-11-10 18:24:37,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:37,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:37,087 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:37,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:37,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:37,288 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:37,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:37,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1172414830, now seen corresponding path program 32 times [2024-11-10 18:24:37,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:37,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452595685] [2024-11-10 18:24:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:37,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:37,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:37,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452595685] [2024-11-10 18:24:37,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452595685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:37,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444412917] [2024-11-10 18:24:37,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:24:37,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:37,373 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:37,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-10 18:24:37,411 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:37,411 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:37,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:37,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:37,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:37,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444412917] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:37,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:37,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:37,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582285394] [2024-11-10 18:24:37,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:37,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:37,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:37,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:37,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:37,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 142 transitions, 2339 flow. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:37,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:37,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:37,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:38,023 INFO L124 PetriNetUnfolderBase]: 355/859 cut-off events. [2024-11-10 18:24:38,023 INFO L125 PetriNetUnfolderBase]: For 8442/8444 co-relation queries the response was YES. [2024-11-10 18:24:38,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4427 conditions, 859 events. 355/859 cut-off events. For 8442/8444 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4900 event pairs, 19 based on Foata normal form. 3/859 useless extension candidates. Maximal degree in co-relation 4378. Up to 178 conditions per place. [2024-11-10 18:24:38,030 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 75 selfloop transitions, 75 changer transitions 19/172 dead transitions. [2024-11-10 18:24:38,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 172 transitions, 2830 flow [2024-11-10 18:24:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:24:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 18:24:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 157 transitions. [2024-11-10 18:24:38,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3738095238095238 [2024-11-10 18:24:38,031 INFO L175 Difference]: Start difference. First operand has 196 places, 142 transitions, 2339 flow. Second operand 15 states and 157 transitions. [2024-11-10 18:24:38,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 172 transitions, 2830 flow [2024-11-10 18:24:38,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 172 transitions, 2665 flow, removed 2 selfloop flow, removed 11 redundant places. [2024-11-10 18:24:38,051 INFO L231 Difference]: Finished difference. Result has 190 places, 130 transitions, 2131 flow [2024-11-10 18:24:38,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=2178, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2131, PETRI_PLACES=190, PETRI_TRANSITIONS=130} [2024-11-10 18:24:38,051 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 162 predicate places. [2024-11-10 18:24:38,051 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 130 transitions, 2131 flow [2024-11-10 18:24:38,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:38,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:38,052 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:38,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:38,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:38,252 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:38,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:38,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2085049042, now seen corresponding path program 33 times [2024-11-10 18:24:38,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:38,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159860114] [2024-11-10 18:24:38,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:38,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:38,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:38,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159860114] [2024-11-10 18:24:38,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159860114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:38,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386668199] [2024-11-10 18:24:38,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:24:38,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:38,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:38,373 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:38,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-10 18:24:38,422 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:24:38,422 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:38,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:38,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:38,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:38,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:38,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:38,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386668199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:38,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:38,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:38,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34978060] [2024-11-10 18:24:38,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:38,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:38,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:38,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:38,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:38,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:38,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 130 transitions, 2131 flow. Second operand has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 18:24:38,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:38,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:38,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:39,149 INFO L124 PetriNetUnfolderBase]: 290/715 cut-off events. [2024-11-10 18:24:39,149 INFO L125 PetriNetUnfolderBase]: For 8108/8110 co-relation queries the response was YES. [2024-11-10 18:24:39,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3859 conditions, 715 events. 290/715 cut-off events. For 8108/8110 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3842 event pairs, 10 based on Foata normal form. 3/715 useless extension candidates. Maximal degree in co-relation 3810. Up to 146 conditions per place. [2024-11-10 18:24:39,156 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 54 selfloop transitions, 43 changer transitions 58/158 dead transitions. [2024-11-10 18:24:39,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 158 transitions, 2588 flow [2024-11-10 18:24:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:24:39,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 18:24:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 147 transitions. [2024-11-10 18:24:39,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-10 18:24:39,158 INFO L175 Difference]: Start difference. First operand has 190 places, 130 transitions, 2131 flow. Second operand 14 states and 147 transitions. [2024-11-10 18:24:39,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 158 transitions, 2588 flow [2024-11-10 18:24:39,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 158 transitions, 2252 flow, removed 15 selfloop flow, removed 18 redundant places. [2024-11-10 18:24:39,176 INFO L231 Difference]: Finished difference. Result has 184 places, 79 transitions, 1086 flow [2024-11-10 18:24:39,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1811, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1086, PETRI_PLACES=184, PETRI_TRANSITIONS=79} [2024-11-10 18:24:39,177 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 156 predicate places. [2024-11-10 18:24:39,177 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 79 transitions, 1086 flow [2024-11-10 18:24:39,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.434782608695652) internal successors, (171), 23 states have internal predecessors, (171), 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 18:24:39,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:39,178 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:39,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:39,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:39,382 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:39,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1383759820, now seen corresponding path program 34 times [2024-11-10 18:24:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867697424] [2024-11-10 18:24:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:39,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:39,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867697424] [2024-11-10 18:24:39,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867697424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:39,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358932392] [2024-11-10 18:24:39,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:24:39,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:39,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:39,478 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:39,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-10 18:24:39,523 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:24:39,523 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:39,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:24:39,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:39,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:39,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358932392] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:39,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:39,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-10 18:24:39,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933675380] [2024-11-10 18:24:39,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:39,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:24:39,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:39,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:24:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:24:39,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:39,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 79 transitions, 1086 flow. Second operand has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:39,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:39,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:39,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:40,080 INFO L124 PetriNetUnfolderBase]: 166/428 cut-off events. [2024-11-10 18:24:40,080 INFO L125 PetriNetUnfolderBase]: For 3697/3699 co-relation queries the response was YES. [2024-11-10 18:24:40,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 428 events. 166/428 cut-off events. For 3697/3699 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1926 event pairs, 10 based on Foata normal form. 3/428 useless extension candidates. Maximal degree in co-relation 2015. Up to 87 conditions per place. [2024-11-10 18:24:40,083 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 47 selfloop transitions, 25 changer transitions 31/106 dead transitions. [2024-11-10 18:24:40,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 106 transitions, 1407 flow [2024-11-10 18:24:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:24:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 18:24:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 144 transitions. [2024-11-10 18:24:40,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3673469387755102 [2024-11-10 18:24:40,084 INFO L175 Difference]: Start difference. First operand has 184 places, 79 transitions, 1086 flow. Second operand 14 states and 144 transitions. [2024-11-10 18:24:40,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 106 transitions, 1407 flow [2024-11-10 18:24:40,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 106 transitions, 1111 flow, removed 16 selfloop flow, removed 33 redundant places. [2024-11-10 18:24:40,090 INFO L231 Difference]: Finished difference. Result has 140 places, 59 transitions, 605 flow [2024-11-10 18:24:40,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=605, PETRI_PLACES=140, PETRI_TRANSITIONS=59} [2024-11-10 18:24:40,091 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 112 predicate places. [2024-11-10 18:24:40,091 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 59 transitions, 605 flow [2024-11-10 18:24:40,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.478260869565218) internal successors, (172), 23 states have internal predecessors, (172), 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 18:24:40,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:40,091 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:40,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-10 18:24:40,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:40,292 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:40,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:40,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1494708189, now seen corresponding path program 35 times [2024-11-10 18:24:40,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:40,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233349628] [2024-11-10 18:24:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:40,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:40,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:40,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233349628] [2024-11-10 18:24:40,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233349628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:40,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733314622] [2024-11-10 18:24:40,327 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 18:24:40,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:40,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:40,328 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:40,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-10 18:24:40,366 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-10 18:24:40,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:40,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:24:40,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:40,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:40,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733314622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:40,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:40,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-10 18:24:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860848653] [2024-11-10 18:24:40,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:40,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 18:24:40,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:40,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 18:24:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-10 18:24:40,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:40,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 59 transitions, 605 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 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 18:24:40,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:40,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:40,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:40,519 INFO L124 PetriNetUnfolderBase]: 87/238 cut-off events. [2024-11-10 18:24:40,519 INFO L125 PetriNetUnfolderBase]: For 1681/1683 co-relation queries the response was YES. [2024-11-10 18:24:40,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 238 events. 87/238 cut-off events. For 1681/1683 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 829 event pairs, 20 based on Foata normal form. 6/243 useless extension candidates. Maximal degree in co-relation 1008. Up to 78 conditions per place. [2024-11-10 18:24:40,521 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 42 selfloop transitions, 13 changer transitions 9/67 dead transitions. [2024-11-10 18:24:40,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 67 transitions, 740 flow [2024-11-10 18:24:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:24:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:24:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 88 transitions. [2024-11-10 18:24:40,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-10 18:24:40,522 INFO L175 Difference]: Start difference. First operand has 140 places, 59 transitions, 605 flow. Second operand 8 states and 88 transitions. [2024-11-10 18:24:40,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 67 transitions, 740 flow [2024-11-10 18:24:40,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 67 transitions, 634 flow, removed 11 selfloop flow, removed 20 redundant places. [2024-11-10 18:24:40,526 INFO L231 Difference]: Finished difference. Result has 102 places, 49 transitions, 416 flow [2024-11-10 18:24:40,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=416, PETRI_PLACES=102, PETRI_TRANSITIONS=49} [2024-11-10 18:24:40,527 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 74 predicate places. [2024-11-10 18:24:40,527 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 49 transitions, 416 flow [2024-11-10 18:24:40,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 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 18:24:40,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:40,527 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:40,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:40,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-10 18:24:40,728 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:40,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:40,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1842872022, now seen corresponding path program 36 times [2024-11-10 18:24:40,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:40,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987279269] [2024-11-10 18:24:40,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:40,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:40,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987279269] [2024-11-10 18:24:40,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987279269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:40,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030547804] [2024-11-10 18:24:40,873 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 18:24:40,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:40,875 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:40,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-10 18:24:40,920 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-10 18:24:40,921 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:40,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:24:40,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:41,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:41,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030547804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:41,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:41,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-10 18:24:41,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267659069] [2024-11-10 18:24:41,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:41,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-10 18:24:41,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:41,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-10 18:24:41,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2024-11-10 18:24:41,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:41,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 49 transitions, 416 flow. Second operand has 28 states, 28 states have (on average 7.428571428571429) internal successors, (208), 28 states have internal predecessors, (208), 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 18:24:41,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:41,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:41,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:41,661 INFO L124 PetriNetUnfolderBase]: 84/234 cut-off events. [2024-11-10 18:24:41,661 INFO L125 PetriNetUnfolderBase]: For 1079/1081 co-relation queries the response was YES. [2024-11-10 18:24:41,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 234 events. 84/234 cut-off events. For 1079/1081 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 817 event pairs, 6 based on Foata normal form. 3/237 useless extension candidates. Maximal degree in co-relation 834. Up to 44 conditions per place. [2024-11-10 18:24:41,662 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 39 selfloop transitions, 21 changer transitions 12/75 dead transitions. [2024-11-10 18:24:41,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 75 transitions, 623 flow [2024-11-10 18:24:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:24:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 18:24:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 150 transitions. [2024-11-10 18:24:41,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-10 18:24:41,663 INFO L175 Difference]: Start difference. First operand has 102 places, 49 transitions, 416 flow. Second operand 15 states and 150 transitions. [2024-11-10 18:24:41,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 75 transitions, 623 flow [2024-11-10 18:24:41,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 75 transitions, 586 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 18:24:41,666 INFO L231 Difference]: Finished difference. Result has 108 places, 45 transitions, 396 flow [2024-11-10 18:24:41,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=396, PETRI_PLACES=108, PETRI_TRANSITIONS=45} [2024-11-10 18:24:41,667 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 80 predicate places. [2024-11-10 18:24:41,667 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 45 transitions, 396 flow [2024-11-10 18:24:41,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.428571428571429) internal successors, (208), 28 states have internal predecessors, (208), 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 18:24:41,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:41,667 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:41,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:41,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-10 18:24:41,871 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:41,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1220676956, now seen corresponding path program 37 times [2024-11-10 18:24:41,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:41,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335289843] [2024-11-10 18:24:41,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:41,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:41,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:41,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335289843] [2024-11-10 18:24:41,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335289843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:41,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50684931] [2024-11-10 18:24:41,973 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 18:24:41,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:41,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:41,975 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:41,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-10 18:24:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:42,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:24:42,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:42,149 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:42,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50684931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:42,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:42,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-10 18:24:42,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952907793] [2024-11-10 18:24:42,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:42,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-10 18:24:42,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:42,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-10 18:24:42,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2024-11-10 18:24:42,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:42,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 45 transitions, 396 flow. Second operand has 28 states, 28 states have (on average 7.357142857142857) internal successors, (206), 28 states have internal predecessors, (206), 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 18:24:42,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:42,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:42,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:42,654 INFO L124 PetriNetUnfolderBase]: 71/200 cut-off events. [2024-11-10 18:24:42,654 INFO L125 PetriNetUnfolderBase]: For 941/943 co-relation queries the response was YES. [2024-11-10 18:24:42,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 200 events. 71/200 cut-off events. For 941/943 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 638 event pairs, 6 based on Foata normal form. 3/203 useless extension candidates. Maximal degree in co-relation 752. Up to 36 conditions per place. [2024-11-10 18:24:42,655 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 23 selfloop transitions, 6 changer transitions 37/69 dead transitions. [2024-11-10 18:24:42,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 69 transitions, 587 flow [2024-11-10 18:24:42,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:24:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 18:24:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 139 transitions. [2024-11-10 18:24:42,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35459183673469385 [2024-11-10 18:24:42,656 INFO L175 Difference]: Start difference. First operand has 108 places, 45 transitions, 396 flow. Second operand 14 states and 139 transitions. [2024-11-10 18:24:42,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 69 transitions, 587 flow [2024-11-10 18:24:42,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 69 transitions, 538 flow, removed 1 selfloop flow, removed 14 redundant places. [2024-11-10 18:24:42,658 INFO L231 Difference]: Finished difference. Result has 103 places, 25 transitions, 157 flow [2024-11-10 18:24:42,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=157, PETRI_PLACES=103, PETRI_TRANSITIONS=25} [2024-11-10 18:24:42,659 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 75 predicate places. [2024-11-10 18:24:42,659 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 25 transitions, 157 flow [2024-11-10 18:24:42,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.357142857142857) internal successors, (206), 28 states have internal predecessors, (206), 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 18:24:42,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:24:42,659 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:24:42,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-10 18:24:42,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-10 18:24:42,860 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 18:24:42,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:24:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash 88652304, now seen corresponding path program 38 times [2024-11-10 18:24:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:24:42,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282716618] [2024-11-10 18:24:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:24:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:24:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:24:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:42,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:24:42,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282716618] [2024-11-10 18:24:42,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282716618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:24:42,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138646391] [2024-11-10 18:24:42,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:24:42,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:24:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:24:42,955 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:24:42,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-10 18:24:42,995 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:24:42,995 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:24:42,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:24:42,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:24:43,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:43,117 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:24:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:24:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138646391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:24:43,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:24:43,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-10 18:24:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452501060] [2024-11-10 18:24:43,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:24:43,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-10 18:24:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:24:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-10 18:24:43,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-11-10 18:24:43,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 28 [2024-11-10 18:24:43,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 25 transitions, 157 flow. Second operand has 28 states, 28 states have (on average 7.428571428571429) internal successors, (208), 28 states have internal predecessors, (208), 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 18:24:43,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:24:43,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 28 [2024-11-10 18:24:43,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:24:43,618 INFO L124 PetriNetUnfolderBase]: 28/80 cut-off events. [2024-11-10 18:24:43,619 INFO L125 PetriNetUnfolderBase]: For 224/224 co-relation queries the response was YES. [2024-11-10 18:24:43,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 80 events. 28/80 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 266. Up to 21 conditions per place. [2024-11-10 18:24:43,619 INFO L140 encePairwiseOnDemand]: 18/28 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-10 18:24:43,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 37 transitions, 251 flow [2024-11-10 18:24:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:24:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 18:24:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 114 transitions. [2024-11-10 18:24:43,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3131868131868132 [2024-11-10 18:24:43,620 INFO L175 Difference]: Start difference. First operand has 103 places, 25 transitions, 157 flow. Second operand 13 states and 114 transitions. [2024-11-10 18:24:43,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 37 transitions, 251 flow [2024-11-10 18:24:43,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 37 transitions, 191 flow, removed 6 selfloop flow, removed 25 redundant places. [2024-11-10 18:24:43,621 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-11-10 18:24:43,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-11-10 18:24:43,622 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 41 predicate places. [2024-11-10 18:24:43,622 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-11-10 18:24:43,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.428571428571429) internal successors, (208), 28 states have internal predecessors, (208), 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 18:24:43,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-10 18:24:43,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-10 18:24:43,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-10 18:24:43,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-10 18:24:43,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-10 18:24:43,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-10 18:24:43,827 INFO L407 BasicCegarLoop]: Path program histogram: [38, 20, 5, 5, 1] [2024-11-10 18:24:43,830 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:24:43,830 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:24:43,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:24:43 BasicIcfg [2024-11-10 18:24:43,835 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:24:43,837 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:24:43,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:24:43,837 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:24:43,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:23:35" (3/4) ... [2024-11-10 18:24:43,840 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:24:43,843 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 18:24:43,843 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 18:24:43,849 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-10 18:24:43,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-10 18:24:43,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 18:24:43,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 18:24:43,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:24:43,929 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:24:43,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:24:43,929 INFO L158 Benchmark]: Toolchain (without parser) took 69219.19ms. Allocated memory was 130.0MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 57.9MB in the beginning and 653.3MB in the end (delta: -595.4MB). Peak memory consumption was 892.3MB. Max. memory is 16.1GB. [2024-11-10 18:24:43,930 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:24:43,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.46ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 57.9MB in the beginning and 140.1MB in the end (delta: -82.2MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-10 18:24:43,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.25ms. Allocated memory is still 172.0MB. Free memory was 140.1MB in the beginning and 139.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:24:43,930 INFO L158 Benchmark]: Boogie Preprocessor took 32.97ms. Allocated memory is still 172.0MB. Free memory was 139.0MB in the beginning and 136.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:24:43,931 INFO L158 Benchmark]: IcfgBuilder took 487.17ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 117.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-10 18:24:43,931 INFO L158 Benchmark]: TraceAbstraction took 68275.46ms. Allocated memory was 172.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 116.0MB in the beginning and 657.5MB in the end (delta: -541.5MB). Peak memory consumption was 902.3MB. Max. memory is 16.1GB. [2024-11-10 18:24:43,931 INFO L158 Benchmark]: Witness Printer took 92.28ms. Allocated memory is still 1.6GB. Free memory was 657.5MB in the beginning and 653.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:24:43,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.46ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 57.9MB in the beginning and 140.1MB in the end (delta: -82.2MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.25ms. Allocated memory is still 172.0MB. Free memory was 140.1MB in the beginning and 139.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.97ms. Allocated memory is still 172.0MB. Free memory was 139.0MB in the beginning and 136.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 487.17ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 117.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 68275.46ms. Allocated memory was 172.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 116.0MB in the beginning and 657.5MB in the end (delta: -541.5MB). Peak memory consumption was 902.3MB. Max. memory is 16.1GB. * Witness Printer took 92.28ms. Allocated memory is still 1.6GB. Free memory was 657.5MB in the beginning and 653.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 39 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 68.2s, OverallIterations: 69, TraceHistogramMax: 3, PathProgramHistogramMax: 38, EmptinessCheckTime: 0.0s, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3411 SdHoareTripleChecker+Valid, 13.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3338 mSDsluCounter, 864 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 750 mSDsCounter, 775 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26889 IncrementalHoareTripleChecker+Invalid, 27664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 775 mSolverCounterUnsat, 114 mSDtfsCounter, 26889 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2840 GetRequests, 1419 SyntacticMatches, 4 SemanticMatches, 1417 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10335 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10197occurred in iteration=53, InterpolantAutomatonStates: 882, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 2446 NumberOfCodeBlocks, 2446 NumberOfCodeBlocksAsserted, 149 NumberOfCheckSat, 3158 ConstructedInterpolants, 0 QuantifiedInterpolants, 21265 SizeOfPredicates, 144 NumberOfNonLiveVariables, 4198 ConjunctsInSsa, 539 ConjunctsInUnsatCore, 147 InterpolantComputations, 35 PerfectInterpolantSequences, 78/556 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 18:24:43,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE